Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-02-09T19:35:26Z No. of bitstreams: 1 2016 - Camila Gomes Nunes.pdf: 4871207 bytes, checksum: 62e59136c5dda645d85ce86beadae3ca (MD5) / Made available in DSpace on 2017-02-09T19:35:26Z (GMT). No. of bitstreams: 1 2016 - Camila Gomes Nunes.pdf: 4871207 bytes, checksum: 62e59136c5dda645d85ce86beadae3ca (MD5) Previous issue date: 2016-08-22 / Despite the nutritional and functional value the fruits of jamel?ozeiros (Syzygium Cumini L. Skeels) known as jamel?es are little consumed. In harvest seasons, production is abundant, however, there is no rational use of the fruit. The pulp of this fruit has a high content of anthocyanin, which gives it high antioxidant potential. The practice of physical exercise generates free radicals in the body, which has the antioxidant defense system; the effectiveness of this system is modulated by the intake of nutrients and other compounds with antioxidant potential, as presents in Jamel?o. The aim of the paper was develop energy drink, formulation for use with Jamel?o pulp and mix of carbohydrates, 100% natural, without colorings and flavorings. 11 formulations were produced according to the RDC / ANVISA n?18/2010, with variations in pulp content and mix of carbohydrates. The samples were subjected to sensory evaluation by the acceptance method with consumers and 4 samples with higher averages passed new sensory analysis by athletes, acceptance method and were also submitted to: physical analysis, chemical and physico-chemical, antioxidant activity by methods DPPH, anthocyanin content and content of phenolic compounds. The formulations 4,5,8 and 11 obtained the highest average with consumers and the sample 11 to greater acceptance by athletes. The sample 8 had higher anthocyanin content differing from the other. The sample 4 and 5 showed higher levels of phenolic and the sample 4 presented the highest antioxidant activity. In conclusion, the beverage had high and satisfactory levels of antioxidants and good acceptance by athletes. Therefore, the production of energy and functional drink for athletes and favors the development of new products using Jamel?o must be encouraged and exploited. / Apesar do valor nutricional e funcional, os frutos dos jamel?ozeiros (Syzygium Cumini L. Skeels) conhecidos como jamel?es, s?o pouco consumidos. Nas ?pocas de safra, a produ??o ? abundante, no entanto, n?o h? uso racional do fruto. A polpa desse fruto apresenta alto teor de antocianinas, que lhe confere alto potencial antioxidante. A pr?tica de exerc?cios f?sicos gera radicais livres no organismo que conta com o sistema de defesa antioxidante, a efic?cia desse sistema ? modulada pela ingest?o de nutrientes e outros compostos com potencial antioxidante, como os presentes no jamel?o. Desenvolver formula??o de bebida energ?tica pronta para consumo com polpa de jamel?o e mistura de carboidratos, 100% natural, sem corantes e aromatizantes. Foram produzidas 11 diferentes formula??es conforme a RDC/ANVISA n?18/2010, com varia??es no teor de polpa e do mix de carboidratos. As amostras foram submetidas a an?lise sensorial pelo m?todo de aceita??o com consumidores e as 4 amostras com maiores m?dias passaram por nova an?lise sensorial pelo m?todo de aceita??o com atletas e foram submetidas tamb?m a: An?lise f?sica, qu?mica e f?sico-qu?mica, atividade antioxidante pelos m?todos DPPH, teor de antocianinas e teor de compostos fen?licos totais. As formula??es 4,5,8 e 11 obtiveram as maiores m?dias com os consumidores sendo a amostra 11 a de maior aceita??o pelos atletas. A amostra 8 apresentou maior teor de antocianina diferindo das demais. As amostra 4 e 5 apresentaram maiores teores de compostos fen?licos sendo a amostra 4 a que apresentou maior atividade antioxidante. Em conclus?o, a bebida desenvolvida apresentou teores elevados e satisfat?rios de compostos antioxidantes e boa aceita??o entre os atletas. Logo, a produ??o de uma bebida energ?tica e funcional para atletas ? favor?vel e o desenvolvimento de novos produtos envolvendo o jamel?o como mat?ria-prima devem ser incentivados e explorados.

?rea de concentra??o: Qu?mica Org?nica. / Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2016-01-06T18:00:22Z No. of bitstreams: 2 license_rdf: 22974 bytes, checksum: 99c771d9f0b9c46790009b9874d49253 (MD5) itala_kariny_barroso_lopes.pdf: 1856554 bytes, checksum: 93412cde269e6e1554cc9332b4babe65 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2016-01-07T11:43:35Z (GMT) No. of bitstreams: 2 license_rdf: 22974 bytes, checksum: 99c771d9f0b9c46790009b9874d49253 (MD5) itala_kariny_barroso_lopes.pdf: 1856554 bytes, checksum: 93412cde269e6e1554cc9332b4babe65 (MD5) / Made available in DSpace on 2016-01-07T11:43:35Z (GMT). No. of bitstreams: 2 license_rdf: 22974 bytes, checksum: 99c771d9f0b9c46790009b9874d49253 (MD5) itala_kariny_barroso_lopes.pdf: 1856554 bytes, checksum: 93412cde269e6e1554cc9332b4babe65 (MD5) Previous issue date: 2015 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes) / Diante do interesse e influ?ncia de ?leos e gorduras ingeridos na alimenta??o e seus efeitos no metabolismo e altera??es na composi??o corporal, o estudo visou caracterizar quimicamente ?leos e gorduras por CG-MS, FTIR e espectrometria UV/vis?vel (Fen?licos, Flavon?ides e Atividade Antioxidante (AA)), al?m de avaliar o efeito da suplementa??o em animais experimentais. Foram utilizados ?leos de Abacate (AB), C?rtamo (CA), Coco (CO), Linha?a (LI) e Pequi (PE), e Banha de Porco (BAN), Margarina (MAR), Manteiga (MAN) e Gordura Vegetal Hidrogenada (GVH). Os ?leos AB, CO, CA e LI tiveram maiores quantidades de fen?licos totais do que as gorduras BAN GVH, MAN e MAR. O CO apresentou maior quantidade de flavon?ides do que os ?leos LI, CA, AB e PE. A GVH apresentou maior quantidade de flavon?ides seguida da MAR, MAN e BAN. Os espectros de infravermelho mostraram a presen?a do grupo hidroxila na posi??o de estiramento 3650-3100nm, o que caracteriza a a??o AA nos ?leos e gorduras. Os cromatogramas identificaram as principais subst?ncias vol?teis dos ?cidos graxos como os ?cidos Capr?lico, L?urico, Miristico, Palm?tico, Este?rico, Ol?ico, Linol?ico, Eicosapentaen?ico e o Ela?dico. No ensaio biol?gico os animais receberam ra??o acrescida de 10% de cada ?leo e gordura, e o grupo controle recebeu apenas a ra??o. Na suplementa??o dos animais o coeficiente de ingest?o alimentar dos grupos AB, BAN,CA, LI, MAN e PE foram os maiores. Os grupos BAN, MAN, MAR e GVH apresentaram maior IMC que o grupo C, que por sua vez apresentou menor ?ndice que os grupos AB, CA, CO, LI e PE. Para o ?ndice de LEE os grupos AB, CA, CO, LI e PE tiveram maior ?ndice que GVH, MAN, MAR, BAN e C. O grupo MAN apresentou maior teor de glicose. Quanto a fra??o de triacilglicer?is e HDL-c os grupo BAN, GVH e MAN foram maiores em rela??o aos demais. Contudo pode se concluir que mesmo os ?leos e gorduras apresentando atividade antioxidante e presen?a de fen?licos e flavon?ides tendo efeitos ben?ficos para a sa?de, o consumo excessivo dos mesmos causa aumento do metabolismo lip?dico. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Qu?mica, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2015. / ABSTRACT Given the interest and influence of ingested fats and oils in food, its effects on metabolism and changes in body composition, this study aimed to characterize chemically oils and fats by GC-MS, FTIR spectrometry (phenolics, flavonoids and Antioxidade Activity), and to evaluate the effect of supplementation in experimental animals. Were used oils Avocado (AB), Safflower (CA), Coconut (CO), Flaxseed (LI) and Pequi (PE), and Lard (BAN), Margarine (MAR), Butter (MAN) and Hydrogenated Vegetable Fat (GVH). The AB, CO, CA and LI had higher amounts of total phenolics than the BAN GVH fats, MAN and MAR. The CO had higher amounts of flavonoids than the LI oils, CA, AB and PE. The GVH had higher amounts of flavonoids then the SEA, MAN and BAN. Infrared spectra showed the presence of the hydroxyl group in position 3650-3100nm stretch, which characterizes the EA action in oils and fats. The chromatograms identified the major volatile substances of fatty acids such as caprylic, lauric, myristic, palmitic, stearic, oleic, linoleic, elaidic and Eicosapentaenoic. In the biological test animals received diet plus 10% of each oil and fat, and the control group received only the diet. In supplementation of animals the intake of food coefficient of AB groups, BAN, CA, LI, MAN and PE were the greatest. The BAN groups, MAN, SEA and GVH had higher BMI than group C, which in turn showed a lower rate than the groups AB, CA, CO, LI and PE. For LEE index AB groups, CA, CO, LI and PE had higher rate than GVH, MAN, MAR, BAN and C. The MAN group had higher glucose content. As the fraction of triacylglycerol and HDL-c the BAN group, GVH and MAN was higher than the other. However it can be concluded that even the oils and fats presenting antioxidade activity and presence of phenolics and flavonoids with beneficial health effects, excessive consumption of these causes increased lipid metabolism.

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-02-15T16:41:12Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) philipe_dias_avila_lima.pdf: 4093796 bytes, checksum: 7076093f9237e97d72538450053db3ed (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-03-06T12:26:30Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) philipe_dias_avila_lima.pdf: 4093796 bytes, checksum: 7076093f9237e97d72538450053db3ed (MD5) / Made available in DSpace on 2017-03-06T12:26:30Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) philipe_dias_avila_lima.pdf: 4093796 bytes, checksum: 7076093f9237e97d72538450053db3ed (MD5) Previous issue date: 2016 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG ) / Nos ?ltimos anos, um n?mero crescente de pesquisas tem demonstrado o papel chave das esp?cies reativas (ERs) na acelera??o do processo de envelhecimento e agravamento de doen?as inflamat?rias e cr?nico-degenerativas. Tais esp?cies, altamente reativas, podem oxidar v?rias biomol?culas e provocar graves les?es no organismo. O efeito das ERs ? equilibrado no organismo por a??o de antioxidantes enzim?ticos e n?o enzim?ticos, sendo estes ?ltimos, representados em sua maioria pelos compostos fen?licos, sendo os flavon?ides os principais representantes. Os flavon?ides podem ser consumidos na dieta di?ria atrav?s de v?rios alimentos como frutas, legumes, vinhos etc., por?m, o principal alvo para busca de tais compostos s?o as plantas medicinais que s?o constantemente utilizadas pela popula??o. Tendo em vista a import?ncia de desenvolvimento e busca de novos compostos antioxidantes naturais, o presente estudo teve como principal objetivo avaliar a atividade antioxidante dos extratos etan?licos de algumas esp?cies vegetais que v?m sendo utilizadas na medicina popular, dentre outras finalidades, como antiinflamat?rias, cicatrizantes e outros usos relacionados a atividade antioxidante. As esp?cies vegetais utilizadas foram: Ageratum fastigiatum (GARDN.) R. M. KING et H. ROB., Croton antisyphiliticus MART., Kielmeyera rubriflora CAMB., Miconia ferruginata DC., e Norantea adamantium CAMB., coletadas no munic?pio de Diamantina ? MG e regi?es subjacentes, ?reas de predomin?ncia do bioma Cerrado. Avaliando a atividade antioxidante e teor de fen?licos totais (FT) nos extratos, pode-se observar que todos os extratos, exceto da A. fastigiatum (partes a?reas) apresentaram altos teores de compostos fen?licos, determinado pelo m?todo colorim?trico de Folin-Ciocalteau (FC) e eficiente poder redutor (PR), com destaque para a N. adamantium (partes a?reas), que apresentou o maior teor de FT (684,59 mg EAG/g extrato) e o menor valor para o PR (EC50 = 66,77 ?g/mL). Quanto ? captura das esp?cies radicalares DPPH? e ABTS?+, os extratos seguiram uma correla??o positiva, determinada pelo coeficiente de Pearson, ou seja, os extratos com maiores teores de FT tamb?m apresentaram as melhores atividades de captura das esp?cies radicalares com destaque para a N. adamantium (partes a?reas) e C. antisyphiliticus (caule) que apresentaram resultados de EC50 estatisticamente semelhantes ao padr?o ?cido g?lico (AG) para a captura de ambas as esp?cies radicalares utilizadas. Para a captura dos reagentes HOCl e H2O2 todos os extratos foram eficientes, por?m apresentaram melhores resultados apenas em altas concentra??es (>100?g/mL), sendo necess?rio um estudo de citotoxicidade para avaliar se tais concentra??es n?o s?o t?xicas ?s c?lulas humanas. Por fim, foi realizada uma avalia??o de interfer?ncia dos extratos no burst oxidativo produzidos por neutr?filos humanos isolados ativados com PMA e todos os extratos apresentaram atividade protetora frente ?s esp?cies produzidas pelo burst oxidativo com destaque para C. antisyphiliticus (caule) e A. fastigiatum (partes a?reas) que apresentaram menores valores de EC50, igual a 8,51 e 5,74 ?g/mL respectivamente. / Disserta??o (Mestrado) ? Programa de P?s-gradua??o em Ci?ncias Farmac?uticas, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / An increasing number of studies have been lately demonstrating the key role of the reactive species (RS) in accelerating aging and worsening inflammatory and chronic-degenerative diseases. This species, highly reactive, are able to oxidize several biomolecules and cause severe injuries to the organism. The effect of the RS is balanced by the enzymatic and non-enzymatic antioxidants, the latter being represented mostly by phenolic compounds and flavonoids key players which can be daily consumed in fruits, vegetables, wine etc. However, the main samples to search for these compounds are the medicinal plants extensively used by the population. Considering the importance of the development and screening of new natural antioxidant compounds, the present study aimed to evaluate the antioxidant activity of the ethanolic extracts of some species of plants that have been used in the popular medicine for its anti-inflammatory, healing and other uses related to antioxidant activity, among other features. The plants were: Ageratum fastigiatum (GARDN.); R. M. KING and H. ROB., Croton antisyphiliticus MART., Kielmeyera rubriflora CAMB., Miconia ferruginata DC., and Norantea adamantium CAMB., colleted at the municipality of Diamantina - MG and surroundings, where the biome Cerrado is predominant. The analysis of the antioxidant activity and the total phenolic content (TP) of the extracts showed that, except for the A. fastigiatum (aerial parts), all of the others presented high contents of phenolic compounds through the colorimetric assay of Folin-Ciocalteau (FC) and the effectiveness of the reductive power (RP). Highlights here to N. adamantium (aerial parts) extract which demonstrated the highest content of TP (684,59 mg EAG/g extract) and the lowest value of RP (EC50 = 66,77 ?g/mL). Regarding the capture of the following free radicals, DPPH? and ABTS?+, the extracts demonstrated a positive correlation, determined by the Pearson factor, which means that the extracts with the highest contents of TP also displayed better capture activities of those free radicals. It is important to emphasize N. adamantium (aerial parts) and C. antisyphiliticus (stem), once they presented statistically similar EC50 to the garlic acid (GA) for the capture of both of the free radicals used. For the capture of HOCl and H2O2, all the extracts showed to be efficient, nevertheless they presented better results only in high concentrations (>100?g/mL). Therefore it is relevant to perform a citotoxicity assay on human cells. At last, the interference of the extracts was evaluated on the oxidative burst produced by human neutrophils isolated and activated with PMA and all of them showed to be protective against the free radicals produced in the assay, in which C. antisyphiliticus (stem) and A. fastigiatum (aerial parts) standout for the lowest EC50, 8,51 and 5,74 ?g/mL respectively.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-01-26T19:42:21Z No. of bitstreams: 1 VivianeHiromiUchida_DISSERT.pdf: 2246882 bytes, checksum: 2d32d23410d1769a404aaae1487d77b2 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-01-29T17:54:27Z (GMT) No. of bitstreams: 1 VivianeHiromiUchida_DISSERT.pdf: 2246882 bytes, checksum: 2d32d23410d1769a404aaae1487d77b2 (MD5) / Made available in DSpace on 2016-01-29T17:54:27Z (GMT). No. of bitstreams: 1 VivianeHiromiUchida_DISSERT.pdf: 2246882 bytes, checksum: 2d32d23410d1769a404aaae1487d77b2 (MD5) Previous issue date: 2014-12-17 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / A Terminalia catappa Linn pertencente ? fam?lia Combretaceae, popularmente conhecida como castanhola, possui frutos constitu?dos por uma polpa carnosa, semente arredondada e uma casca muito dura. A pigmenta??o natural existentes no fruto da castanhola indica a presen?a de antocianinas, componentes de natureza fen?lica pertencentes ao grupo dos flavon?ides, que apresentam atividade antioxidante. A presente pesquisa foi realizada com a castanhola e teve como principal objetivo o estudo de fatores que influenciam a extra??o de corantes a partir de sua polpa. Os extratos foram obtidos utilizando-se um reator enjaquetado por extra??o s?lido l?quido. Os fatores avaliados foram a temperatura, o tempo, a propor??o do solvente e o pH de extra??o. Adotando-se um planejamento fatorial de 24 , com 4 repeti??es no ponto central, os efeitos destes fatores sobre o processo de extra??o foram analisados utilizando-se o software Statistica 7.0. A atividade antioxidante (AA), o teor de compostos fen?licos totais (CFT) e o teor de antocianinas monom?ricas totais (AMT) foram avaliadas como vari?veis resposta do planejamento. Na an?lise estat?stica dos resultados, os efeitos que mais influenciaram a extra??o foram diferentes para cada uma das respostas (CFT, AMT e AA). No entanto o pH se mostrou significativo para a extra??o de todos os compostos. O comportamento cin?tico da extra??o do corante tamb?m foi estudado para os compostos fen?licos totais, antocianinas monom?ricas e atividade antioxidante, em que o equil?brio foi atingido ap?s os 90 minutos de extra??o. No estudo da estabilidade das antocianinas a temperatura foi o fator que mais influenciou na estabilidade, contudo a concentra??o e o pH tamb?m tiveram influ?ncia / The Terminalia catappa Linn belonging to Combretaceae family, popularly known as castanets, has fruits consists of a fleshy pulp, rounded seed and a very hard shell. The natural pigmentation existing in the fruit of castanet indicates the presence of anthocyanins, phenolic nature components belonging to the group of flavonoids, which have antioxidant activity. This research was conducted with the castanets and aimed to the study of factors influencing the extraction of dyes from its pulp. The extracts were obtained using a reactor enjaquetado by solid-liquid extraction. The factors were evaluated as temperature, time, solvent ratio and pH extraction. Adopting a factorial design of 24 , with 4 repetitions at the central point, the effects of these factors on the extraction process were analyzed using Statistica 7.0 software. The antioxidant activity (AA), the content of phenolic compounds (CFT) and the total monomeric anthocyanin content (AMT) were evaluated as response variables planning. Statistical analysis of the results, the effects that influenced the extraction were different for each response (CFT, AMT and AA). However, the pH was significant for the extraction of all compounds. The kinetic behavior of the dye extraction was also studied for phenolic compounds, monomeric anthocyanins and antioxidant activity, in which the equilibrium was reached after 90 minutes of extraction. To study the stability of anthocyanins temperature was the factor that most influenced the stability, however the concentration and pH also played a part.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-03-22T00:26:40Z No. of bitstreams: 1 MariaDeFatimaBezerra_TESE.pdf: 8001077 bytes, checksum: 680617b92afca9b7140a3d99473e34c2 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-22T23:44:28Z (GMT) No. of bitstreams: 1 MariaDeFatimaBezerra_TESE.pdf: 8001077 bytes, checksum: 680617b92afca9b7140a3d99473e34c2 (MD5) / Made available in DSpace on 2016-03-22T23:44:28Z (GMT). No. of bitstreams: 1 MariaDeFatimaBezerra_TESE.pdf: 8001077 bytes, checksum: 680617b92afca9b7140a3d99473e34c2 (MD5) Previous issue date: 2015-04-24 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / A presente tese avaliou a polpa de jambol?o (Eugenia jambolana Lam.) fresca e desidratada mediante dois processos de secagem (liofiliza??o e atomiza??o com 10 % de goma Ar?bica) quanto as caracter?sticas f?sico-qu?micas (pH, umidade, atividade de ?gua, di?metro m?dio de part?culas, solubilidade dos p?s e cor instrumental), bioativas [compostos fen?licos totais (CFT), antocianinas monom?ricas, proantocianidinas (PA), ?cido el?gico total (AET), miricetina e cianidina] e estudo da funcionalidade in vitro (atividade antioxidante, antienzim?tica e antimicrobiana). Em seguida, a funcionalidade in vivo da polpa de jambol?o foi avaliada, com uso do modelo Caenorhabditis elegans, quanto ? via sinaliza??o de insulina, longevidade e doen?as neurodegenerativas (doen?a de Alzheimer e Mal de Parkinson). A polpa de jambol?o desidratada apresentou consider?vel reten??o de CFT (50 % a 75 %), PA (90 % a 98 %), AET (31 % a 83 %), miricetina (40 % a 84 %), cianidina (72 % a 84 %) e atividade antioxidante (15 %). A polpa fresca, o p? liofilizado e o p? atomizado apresentaram elevada atividade inibit?ria contra lipase pancre?tica (4,4 a 5,8 mg/mL), alfa-glicosidase (10,3 a 13,8 mg/mL) e alfa-amilase (8,9 a 11,2 mg/mL). Esses grupos experimentais tamb?m se apresentaram inibidores ativos contra o crescimento de S. aureus. Os p?s de jambol?o aumentaram a express?o de genes ligados ? via de sinaliza??o de insulina (SIR-2.1, PPTR-1, DAF-16, SOD-3, e CTL) e foram capazes de estender o tempo m?dio de vida de C. elegans (18,07 % a 24,34 %), reduzir a paralisia induzida pelo amiloide AB1-42 e os danos causados pela mol?cula neurot?xica 1-methyl-4- phenylpyridinium (MPP+ ). A partir disso, foi desenvolvido frozen yogurt com uso do leite caprino adicionado de Bifidobacterium animalis subsp. lactis BI-07 com polpa ou p? atomizado de jambol?o. O produto final foi avaliado quanto a suas caracter?sticas f?sico-qu?micas (pH, acidez titul?vel, s?lidos totais, prote?na, a??cares redutores totais, gordura, cinzas, overrun e teste de derretimento], bioativas (CFT e antocianinas monom?ricas), atividade antioxidante, iii viabilidade da cultura probi?tica e an?lise sensorial (teste de aceita??o). As amostras de frozen yogurt caprino com cultura probi?tica apresentaram menor pH e maior acidez, CFT, antocianinas e atividade antioxidante quando comparada com aquelas sem a presen?a da B. animalis. Foram observados n?veis de overrun entre 14,2% e 22,6%. As amostras de frozen yogurt com cultura probi?tica alcan?aram resultados inferiores para o atributo sabor. De maneira geral, a presente pesquisa apresenta o jambol?o como um fruto rico em compostos bioativos, com elevada capacidade funcional, com potencial para modular importantes vias biol?gicas, aumentar a expectativa de vida e retardar risco de doen?as neurodegenerativas. Atualmente o jambol?o ? um fruto ex?tico subaproveitado no Brasil com elevado poder corante e a presente tese mostra, pela primeira vez na literatura, importantes achados tecnol?gicos, biol?gicos e cient?ficos sobre essa fruta que podem ser usados para o desenvolvimento de produtos alimentares saud?veis. / This work evaluated the fresh, spray dried (with 10 % of Arabic Gum) and freeze dried jambolan pulp (Eugenia jambolana Lam.) in regard to physicochemical (pH, moisture, water activity, average particle diameter, solubility and color), bioactive [total phenolic content (TPC), monomeric anthocyanin, pronathocyanidin (PA), total elagic acid (TEA), myricetin and cyanidin] and in vitro functionality (antioxidant, antienzymatic and antimicrobial activities]. In addition, the in vivo functionality of jambolan pulp was investigated using the Caenorhabditis elegans model for insulin signaling, longevity and induced neurodegeneration (Alzheimer?s disease and Parkinson?s disease related symptoms). The dried jambolan pulp presented TPC retention (50% to 75%), PA (90% to 98%), TEA (31% to 83%), myricetin (40% to 84%), cyanidin (72% to 84%) and antioxidant activity (15%). The fresh jambolan pulp, the freeze dried pulp and the spray dried jambolan pulp presented high enzymatic inhibitory activity against pancreatic lipase (4,4 to 5,8 mg/mL), alpha-glycosidase (10,3 to 13,8 mg/mL) and alpha-amylase (8,9 to 11,2 mg/mL). They also were active inhibitors against the pathogen S. aureus. The dried jambolan experimental samples were able to increase the expression of several genes linked to the insulin signaling pathways (SIR-2.1, PPTR-1, DAF-16, SOD-3, e CTL) and increased the lifespan in C. elegans (18,07 % - 24,34 %), besides decreasing the amyloid AB1-42 aggregation induced paralysis and MPP+ (1-methyl-4-phenylpyridinium) induced neurodegeneration. Based on that, the jambolan pulp and the spray dried jambolan pulp were further selected for the production of caprine frozen yogurt with the addition of Bifidobacterium animalis subsp. lactis BI-07. The final product were evaluated in regard to their physicochemical (pH, acidity, total solids, protein, total reducing sugars, fat, ashes, overrun, melting test), bioactive (TPC and monomeric anthocyanin, antioxidant activity, probiotic viability and sensory analysis (sensory acceptance). The results showed that samples with probiotic had lowest pH and higher acidity, TPC, anthocyanin and antioxidant activity. It was also observed low overrun (14.2% to 22.6%). vi Samples with probiotic had lower flavor scores. Overall, this research presents the jambolan as a highly functional bioactive-rich fruit with the potential to modulate important biological pathways, extend lifespan and retard the development of neurodegenerative diseases. Jambolan is an underexploited exotic fruit with a high colorant potential and this thesis shows for the first time in the literature important technological, biological and scientific data about this fruit that could be used towards the development of health-oriented food products.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-03-31T23:27:05Z No. of bitstreams: 1 EmersonMichellDaSilvaSiqueira_DISSERT.pdf: 1831728 bytes, checksum: f0f660926f6f553bf0bc11ee19ff98ac (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-04-05T19:34:10Z (GMT) No. of bitstreams: 1 EmersonMichellDaSilvaSiqueira_DISSERT.pdf: 1831728 bytes, checksum: f0f660926f6f553bf0bc11ee19ff98ac (MD5) / Made available in DSpace on 2016-04-05T19:34:10Z (GMT). No. of bitstreams: 1 EmersonMichellDaSilvaSiqueira_DISSERT.pdf: 1831728 bytes, checksum: f0f660926f6f553bf0bc11ee19ff98ac (MD5) Previous issue date: 2015-02-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Spondias tuberosa Arruda (Anacardiaceae) ? uma ?rvore frut?fera conhecida popularmente no Brasil como umbuzeiro, tapereba ou umbu. A planta ? nativa e end?mica do Brasil, distribu?da por todos estados do nordeste brasileiro. Essa esp?cie tem grande import?ncia na medicina popular do semi-?rido nordestino, onde ? utilizada principalmente para tratar condi??es inflamat?rias, problemas digestivos assim como infec??es virais e bacterianas. No entanto, apesar da vasta utiliza??o na medicina tradicional, existem poucos estudos farmacol?gicos e fitoqu?micos que d?em embasamento cient?fico a sua utiliza??o popular. Diante disto, este trabalho buscou caracterizar os marcadores qu?micos e avaliar a atividade anti-inflamat?ria do extrato das folhas de Spondias tuberosa. O extrato das folhas foi preparado por macera??o em etanol:?gua (70:30, v/v). A avalia??o do perfil fitoqu?mico do extrato foi realizada preliminarmente por Cromatografia em Camada Delgada e em seguida por Cromatografia L?quida de Alta Efici?ncia. Na an?lise por Cromatografia em Camada Delgada foi observada a presen?a dos flavonoides rutina e isoquercitrina, o que foi corroborado pela an?lise por Cromatografia L?quida de Alta Efici?ncia que ainda indicou a presen?a dos ?cidos fen?licos, ?cido clorog?nico e ?cido caf?ico. Adicionalmente, foi desenvolvido e validado um m?todo por Cromatografia L?quida de Alta Efici?ncia segundo as normas da RDC 899/2003 da ANVISA e ICH Guidelines 2005, para avaliar o teor dos compostos identificados no extrato. Para avalia??o do efeito anti-inflamat?rio foram utilizados os modelos de peritonite e de edema de pata induzidos por carragenina, administra??o via intraperitoneal, em camundongos. A avalia??o do efeito anti-inflamat?rio in vivo demonstrou que o extrato das folhas, nas concentra??es de 125, 250 e 500 mg/kg, apresentou uma diminui??o do influxo de leuc?citos para o local da inflama??o, do di?metro do edema e do n?vel da enzima mieloperoxidase, quando comparado ao f?rmaco utilizado como controle dexametasona (2 mg/kg, via i.p.). Em suma, em nosso trabalho foi verificado que o extrato hidroetan?lico das folhas de Spondias tuberosa apresentou atividade anti-inflamat?ria importante nos dois modelos ensaiados, o que torna a planta uma potencial esp?cie para este uso, justificando o seu uso popular. No que se refere ? caracteriza??o de marcadores, os compostos fen?licos, ?cido clorog?nico, ?cido caf?ico, rutina e isoquercitrina, identificados no extrato hidroetan?lico das folhas de Spondias tuberosa podem ser utilizados no controle de qualidade da mat?ria-prima e de extratos obtidos com a esp?cie. / Spondias tuberosa Arruda (Anacardiaceae) is a fruitful tree popularly known as umbuzeiro, tapereba or umbu. It is a native and endemic species from Brazil, widespread in Brazilian Northeast. The species is important in folk medicine of the semi-arid Northeast, where it is mainly used to treat various inflammatory conditions, digestive problems as well as viral and bacterial infections. However, despite the common use in folk medicine, there are scarce pharmacological and phytochemicals studies that afford scientific evidence to its popular use. Therefore, this study aimed to characterize the chemical markers in S. tuberosa leaves extract, obtained by maceration ethanol:water (70:30, [v/v]), and evaluate its anti-inflammatory potential in vivo. The phytochemical profile in TLC analysis suggested the occurence of the flavonoids rutin and isoquercitrin. HPLC analysis enabled us to confirm the presence of flavonoids and also, were detected the phenolic acids, chlorogenic acid and caffeic acid. In addition was developed and validated a HPLC method to evaluate the content of the identified compounds in S. tuberosa leaves extract according to RDC 899/2003 of ANVISA and ICH Guidelines 2005. In order to evaluate the anti-inflammatory potential of S. tuberosa leaves extract, the peritonitis and paw edema models induced by carrageenan were used, administration i.p. in mice. The results highlighted the anti-inflammatory property in vivo at 125, 250 and 500 mg/kg since a decrease in leukocyte influx to the site of inflammation, diameter of the edema and the level of myeloperoxidase were observed when compared to the drug control dexamethasone (2 mg/kg, i.p. route). Taken together, the results pointed out S. tuberosa as a potential species for developing phytotherapic derivatives in according to its popular use. With regard to the characterization markers, chlorogenic acid, caffeic acid, rutin and isoquercitrin were identified and quantified in Spondias tuberosa leaves extract so they could be used in quality control analyses of the raw material and extracts of this species.

Made available in DSpace on 2014-12-17T15:01:25Z (GMT). No. of bitstreams: 1 NataliaFO_DISSERT_Partes autorizadas.pdf: 162419 bytes, checksum: df1688a55f3602778175a9d04e3bc026 (MD5) Previous issue date: 2011-02-17 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / Algaroba (Prosopis juliflora) is a typical legume from arid and semi arid regions, which is composed by sugar-rich pods and high protein seeds. Phenolic compounds are secondary metabolites recognized as potent bioactive compounds, found in several vegetables.Therefore, the objective of this work is to characterize the algaroba flour in terms of its physicalchemical composition, total phenolic content, antioxidant activity by DPPH and ABTS methods, a-amylase and a-glycosidase inhibition, as well as to analyze its organic compounds by high performance liquid chromatography (HPLC). Three experimental groups were investigated (seeds, seeds and pod together and only pod), which were prepared by oven drying and posterior grinding. Water and ethanol extracts (70, 80, 100% v/v) were prepared and used for functional studies. Organic compounds were detected by using HPLC equipment coupled to mass spectrometer. Results show important physical-chemical differences among the experimental groups, seeds, seeds and pod together and only pod. The algarroba seed flour is high in protein (49.49%) and fat (3.10%), while the pod flour is especially rich in sugar (60.3% to 67.9%). Algaroba phenolics are concentrated in pod flour, mainly in water extracts (1.30 mg GAEQ/100g sample). All seed extracts showed high DPPH activity and maximum antioxidant activity was registered for ethanol 80% extracts (19.81 ?M Trolox/g sample). The ABTS activity ranged from 9.73 to 12.74 ?M Trolox/g sample. Nearly all the extracts were able to inhibit ?-amylase activity mildly (30.50% to 48.80%), while the maximum ?-glycosidase inhibition was observed for pod water extracts (81.03%). Algaroba water extracts proven to be especially rich in organic compounds, observed by the high number of chromatographic peaks. Results demonstrate that algaroba is a potential candidate for further investigations concerning its possible functional applications / A algaroba (Prosopis juliflora) ? uma leguminosa t?pica de regi?es ?ridas e semi-?ridas constitu?da por vagem rica em a??cares e sementes de elevado teor prot?ico. Os compostos fen?licos s?o metab?litos secund?rios reconhecidos como importantes compostos bioativos, presentes em grande n?mero de vegetais. O objetivo do presente trabalho foi caracterizar a farinha de algaroba quanto ? composi??o f?sico-qu?mica, concentra??o fen?lica total, atividade antioxidante pelos m?todos DPPH e ABTS, capacidade de inibi??o das enzimas ?-amilase e ?-glicosidase, bem como analisar a presen?a de compostos org?nicos por cromatografia l?quida. Foram analisados tr?s grupos experimentais (semente, vagem inteira e vagem sem semente), os quais foram secos em estufa e mo?dos, obtendo-se a farinha de cada um dos grupos. A partir disso, foram elaborados extratos aquosos e etan?licos (70, 80, 100% v/v) para a an?lise da funcionalidade. Para a determina??o de compostos org?nicos foi utilizado cromatografia l?quida de alta efici?ncia acoplada a espectr?metro de massas. Os resultados da presente pesquisa permitem inferir que existem diferen?as importantes entre a composi??o f?sico-quimica das farinhas da semente, vagem inteira e vagem sem semente de algaroba. A farinha da semente se destacou por sua elevada concentra??o de prote?nas (49,49%) e gordura (3,10%), ao passo que a farinha das vagens mostrou-se especialmente rica em a??cares (60,3 a 67,9%). Os compostos fen?licos da algaroba est?o em maior concentra??o na vagem sem semente, sobretudo para os extratos aquosos (1,30 mg GAEQ/100g amostra). Todos os extratos da semente de algaroba apresentaram elevada capacidade antoxidante pelo m?todo DPPH, com m?ximo registrado para extratos etan?licos 80% (19,81?M Trolox/g amostra). A atividade antioxidante medida pelo m?todo ABTS dos extratos estudados estiveram entre 9,73 e 12,74 ?M Trolox/g amostra. Praticamente todos os extratos obtidos foram capazes de inibir moderadamente a atividade da enzima ?-amilase (30,50% a 48,80%), sendo que a m?xima inibi??o da ?-glicosidase foi observada para os extratos aquosos da vagem sem semente (81,03%). A algaroba apresentou variedade de compostos org?nicos detectados por cromatografia l?quida, sobretudo os extratos aquosos que demonstraram grande n?mero de picos. Sugere-se a algaroba como poss?vel candidata para futuras investiga??es visando sua utiliza??o como alimento funcional

Submitted by PPG Biologia Celular e Molecular (bcm@pucrs.br) on 2017-08-15T12:27:16Z No. of bitstreams: 1 BRUNO_DE_SOUZA_BASSO_DIS.pdf: 1709254 bytes, checksum: 167b84b794ff4ea4955b2ef79229ab4e (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-08-16T13:04:39Z (GMT) No. of bitstreams: 1 BRUNO_DE_SOUZA_BASSO_DIS.pdf: 1709254 bytes, checksum: 167b84b794ff4ea4955b2ef79229ab4e (MD5) / Made available in DSpace on 2017-08-16T13:39:33Z (GMT). No. of bitstreams: 1 BRUNO_DE_SOUZA_BASSO_DIS.pdf: 1709254 bytes, checksum: 167b84b794ff4ea4955b2ef79229ab4e (MD5) Previous issue date: 2017-03-03 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The genus Baccharis belongs to the family Asteraceae and has several species widely used in folk medicine and own many compounds of pharmaceutical interest. The aim of this work was to evaluate the cytotoxic, antiproliferative effect and phenotypic reversion of Baccharis anomala extract on activated hepatic stellate cells (HSCs) and identify the compounds present in the extract. In order to evaluate the cytotoxic and antiproliferative effect of the fractionated extract, lactate dehydrogenase (LDH) release and the trypan blue exclusion method were used. The phenotype reversion was evaluated by staining with Oil Red and PPAR-? expression by RT-PCR. The fractions obtained from the methanolic extract were characterized for their phenolic composition by HPLC. The results showed that two fractions of methanolic extract decreased cell proliferation without increasing LDH release levels. Cell cycle arrest was evaluated using 7-AAD and DAPI staining was used to evaluate indications of apoptosis. Fractions of B.anomala induced cell cycle arrest in G1 phase, while DAPI staining did not reveal cell death by apoptosis. Oil-Red (ORO) staining showed the ability of fractions to induce phenotypic reversion and the evaluation of PPAR-? mRNA expression was not altered, suggesting that there is an independent PPAR-? pathway involved. The main components identified in the fractions that presented biological activity were hydroxybenzoic, chlorogenic and coumaric acid. Our study was able to show the antiproliferative effect of methanolic extract fractions of B.anomala, its potential to reverse the activated phenotype of hepatic stellate cells and showed its potential for the treatment of liver fibrosis. / O g?nero Baccharis pertence ? fam?lia Asteraceae e tem v?rias esp?cies amplamente utilizadas na medicina popular, possuindo muitos compostos de interesse farmac?utico. O objetivo deste trabalho foi avaliar o efeito citot?xico, antiproliferativo e a revers?o fenot?pica do extrato de Baccharis anomala em c?lulas estreladas hep?ticas ativadas (HSCs) e identificar os compostos presentes no extrato. Para avaliar o efeito citot?xico e antiproliferativo do extrato fracionado, foram utilizadas a libera??o de lactato desidrogenase (LDH) e o m?todo de exclus?o de azul de Tripan. A revers?o do fen?tipo foi avaliada por colora??o com Oil Red e pela express?o de PPAR-? por RT-PCR. As fra??es obtidas a partir do extrato metan?lico foram caracterizadas pela sua composi??o fen?lica por HPLC. Os resultados mostraram que duas fra??es do extrato metan?lico diminu?ram a prolifera??o celular sem aumentar os n?veis de libera??o de LDH. A parada do ciclo celular foi avaliada usando 7-AAD e colora??o por DAPI foi utilizada para avaliar a apoptose celular. As fra??es de B.anomala induziram a parada do ciclo celular em fase G1, a colora??o por DAPI n?o revelou morte celular por apoptose. Colora??o por Oil-RedO (ORO) mostrou a capacidade de indu??o da revers?o fenot?pica, a avalia??o da express?o mRNA de PPAR-y por RT-PCR n?o foi alterada, sugerindo que exista uma via independente de PPAR-y envolvida. Os principais componentes identificados nas fra??es que apresentaram atividade biol?gica foram os ?cidos hidroxibenz?ico, clorog?nico e cum?rico. Nosso estudo foi capaz de mostrar o efeito antiproliferativo das fra??es de extrato metan?lico de B.anomala, seu potencial para reverter o fen?tipo ativado das c?lulas estreladas hep?ticas e mostrou seu potencial para o tratamento da fibrose hep?tica.

Submitted by PPG Engenharia e Tecnologia de Materiais (engenharia.pg.materiais@pucrs.br) on 2018-06-11T12:25:49Z No. of bitstreams: 1 Investiga??o de atividades biol?gicas e potencial uso de extratos das flores de Acacia mearnsii o.pdf: 2416660 bytes, checksum: d1a24de16c6bbd6f86f46d3c0bb1dbc0 (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-06-21T18:41:36Z (GMT) No. of bitstreams: 1 Investiga??o de atividades biol?gicas e potencial uso de extratos das flores de Acacia mearnsii o.pdf: 2416660 bytes, checksum: d1a24de16c6bbd6f86f46d3c0bb1dbc0 (MD5) / Made available in DSpace on 2018-06-21T18:54:44Z (GMT). No. of bitstreams: 1 Investiga??o de atividades biol?gicas e potencial uso de extratos das flores de Acacia mearnsii o.pdf: 2416660 bytes, checksum: d1a24de16c6bbd6f86f46d3c0bb1dbc0 (MD5) Previous issue date: 2018-03-28 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Although the Acacia mearnsii tree is widely cultivated and used in the industry, its flowers are seldom researched. Considering the extensive availability of A. mearnsii flowers and the growing interest in natural products, this work aimed at the obtainment of extracts from these flowers and investigation of their composition and biochemistry properties. In this work, essential oil and aqueous extract by steam distillation and extracts were obtained with supercritical fluid. The essential oil was characterized by CG-MS and olfactometry. The main compounds identified in the essential oil were 8-heptadecene, heptadecane, nonadecane e kaurene. The main aroma detected by olfactometric analysis was roast nutty, as well as coffee, sweet, floral, vegetal and spicy. Antioxidant activity was determined and the aqueous extract showed an activity superior to rutin standard. LC-qTOF-MS identified 42 likely phenolic compounds, such as quercitrin, naringenin, myricetin, rutin, and robinetin. The extracts obtained by supercritical extraction and isolated fractions presented activity against S. aureus. The yield of the supercritical extraction was optimized using factorial planning and mass transfer parameters were obtained through mathematical models that represent the extraction curve. Thus, it was concluded that the flowers of A. mearnsii can be exploited by extractive processes used in this study to generate a plant by-product. The results indicate the aromatic and antioxidant potential of the essential oil and aqueous extract, respectively, obtained with 2.0 bar steam distillation, while the supercritical extract has antibacterial action. / A Acacia mearnsii, apesar de ser amplamente cultivada e utilizada industrialmente, n?o tem o potencial de suas flores explorado. Considerando a disponibilidade de flores da A. mearnsii e o crescente interesse por produtos naturais, esse trabalho consistiu na obten??o de extratos destas flores e na investiga??o de suas composi??es e a??es bioqu?micas. A pesquisa compreendeu a extra??o do ?leo essencial e a obten??o do extrato aquoso de flores da planta via destila??o por arraste a vapor, al?m da extra??o com fluido supercr?tico. O ?leo essencial foi analisado por GC-MS e apresentou, entre os 31 compostos identificados, 8-heptadeceno, heptadecano, nonadecano e caureno como compostos majorit?rios. Na an?lise olfatom?trica (GC-O), os principais aromas detectados no ?leo essencial foram caf?, doce, floral, vegetal e refrescante, com destaque para ?castanha/defumado?. O extrato aquoso das flores da A. mearnsii apresentou atividade antioxidante superior ? da rutina. Utilizando cromatografia de alta resolu??o (LC-qTOF/MS), foram verificados 42 prov?veis compostos fen?licos, entre eles, quercitrina, naringenina, miricetina, rutina, robinetina. Os extratos obtidos via extra??o supercr?tica e fra??es isoladas apresentaram atividade frente a S. aureus. O rendimento da extra??o supercr?tica foi otimizado utilizando planejamento fatorial e par?metros da transfer?ncia de massa foram obtidos atrav?s de modelos matem?ticos que representam a curva de extra??o. Assim, concluiu-se que as flores de A. mearnsii podem ser exploradas pelos processos extrativos empregados nesse estudo a fim de gerar um co-produto da cadeia produtiva da planta, uma vez que o ?leo essencial e o extrato aquoso, obtidos pela extra??o por arraste a vapor a 2,0 bar, possuem, respectivamente, potencial arom?tico e poder antioxidante, enquanto o extrato obtido com fluido supercr?tico apresenta a??o antibacteriana.

Submitted by Jadson Francisco de Jesus SILVA (jadson@uefs.br) on 2018-01-23T00:22:49Z No. of bitstreams: 1 Disserta??o vers?o biblioteca FINAL II Teresa_versao WORD (1) (1).pdf: 2399848 bytes, checksum: a72bd616ac1f702167982548cd4418bb (MD5) / Made available in DSpace on 2018-01-23T00:22:49Z (GMT). No. of bitstreams: 1 Disserta??o vers?o biblioteca FINAL II Teresa_versao WORD (1) (1).pdf: 2399848 bytes, checksum: a72bd616ac1f702167982548cd4418bb (MD5) Previous issue date: 2017-08-29 / Corymbia torelliana (F. Muell.) K.D. Hill & L.A.S. Johnson (Myrtaceae) is a pollinated species, easy to adapt, high resistance and therapeutic potential. Considering that pollen has demonstrated medicinal potential, this study aimed to evaluate the chemical composition and biological activity of the pollen of this species. The material was collected at Bahia Specialty Cellulose / Copener. The chemical composition (phenolic content, total flavonoids and phytochemical screening) was evaluated from the raw ethanolic pollen extract (EEP) and the biological tests of antioxidant activity, 2,2-diphenyl-1-picryl-hydrazila (DPPH) (Rota rod), analgesic activity (tests of abdominal contortions induced by acetic acid, formalin and hot plate) and anti-inflammatory (carrageenan-induced paw edema test) were analyzed using mice. The presence of terpenes, steroids and phenolic compounds was identified and the EEP presented 116.21 ? 7.80 mgEAG / g of phenolic compounds and 35.81 ? 8.37 mgEQ / g of flavonoids. In the antioxidant activity test, pollen was able to sequester DPPH with EC50 of 60.85 ? 4.70 ?g / mL. As for the acute toxicity, no change was observed in the test used, nor was there any alteration in motor coordination in the Rota rod test. It was verified the presence of analgesic and anti-inflammatory activity of the EEP in the doses used (75, 150 and 300 mg / kg), and the dose of 75 mg / kg presented the best result. The results indicate an antioxidant, analgesic and anti-inflammatory potential for the EEP of this species, besides a possible peripheral and central activity. / Corymbia torelliana (F. Muell.) K.D. Hill & L.A.S. Johnson (Myrtaceae) ? uma esp?cie polin?fera, de f?cil adapta??o, grande resist?ncia e poss?veis potencialidades terap?uticas. Considerando que o p?len tem demonstrado potencial medicinal, este estudo teve como objetivo avaliar a composi??o qu?mica e atividade biol?gica do p?len dessa esp?cie. A coleta do material foi realizada na empresa Bahia Specialty Cellulose/Copener. A partir do extrato bruto etan?lico do p?len (EEP) foi avaliada a composi??o qu?mica (teor de fen?licos, flavonoides totais e triagem fitoqu?mica) e realizado testes biol?gicos de atividade antioxidante, m?todo 2,2?Difenil?1?picril?hidrazila (DPPH), utilizando camundongos analisou-se toxidade aguda, coordena??o motora (Rota rod), atividade analg?sica (testes das contor??es abdominal induzido pelo ?cido ac?tico, da formalina e da placa quente) e anti-inflamat?ria (teste do edema da pata induzido por carragenina). Foi identificada a presen?a de terpenos, esteroides e compostos fen?licos e o EEP apresentou 116,21?7,80 mgEAG/g de compostos fen?licos e 35,81?8,37 mgEQ/g de flavonoides. No teste de atividade antioxidante o p?len foi capaz de sequestrar o DPPH com CE50 de 60,85?4,70 ?g/mL. Quanto ? toxidade aguda n?o foi observada nenhuma altera??o no teste utilizado, bem como n?o foi verificada altera??es da coordena??o motora no teste do Rota rod. Foi verificada a presen?a de atividade analg?sica e anti-inflamat?ria do EEP nas doses utilizadas (75, 150 e 300 mg/kg), sendo que a dose de 75 mg/kg apresentou o melhor resultado. Os resultados obtidos apontam um potencial antioxidante, analg?sico e anti-inflamat?rio para o EEP dessa esp?cie, al?m de uma poss?vel atividade perif?rica e central.