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Caracterização física, química e funcional dos frutos da pitombeira (talisia esculenta). / Physical, chemical and functional characterization of the fruits of pitombeira (talisia esculenta).QUEIROGA, Artur Xavier Mesquita de. 27 May 2018 (has links)
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Previous issue date: 2015 / Os frutos da pitombeira dispõem de características de qualidade potencial para
o consumo industrial e processado, porém são pouco estudados, gerando a
necessidade de se obter mais informações sobre a potencialidade da espécie e
sua utilização para os mais diversos fins. Diante destes aspectos, realizou-se
uma caracterização física, química e funcional pós-colheita de frutos da
pitombeira. Os frutos da pitombeira provenientes da cidade de Luís Gomes-RN
foram adquiridos em uma feira livre no município de Sousa-PB, localizado a 60
km do município de origem dos frutos e conduzidos a 53 km de distância, em
carro próprio e acondicionados em caixas de papelão à temperatura ambiente,
para o Laboratório de Análise de Alimentos da Unidade Acadêmica de
Tecnologia de Alimentos do Centro de Ciências e Tecnologia Agroalimentar da
Universidade Federal de Campina Grande, no município de Pombal-PB, entre
os meses de junho e julho de 2014. Os frutos foram selecionados com relação
à ausência de danos físicos e doenças, bem como, quanto ao seu estádio de
maturação e tamanho, sendo refrigerados logo em seguida a 4ºC. Os frutos
foram divididos em 15 repetições, contendo 25 frutos ou cerca de 150g cada.
Desse total, em cada uma das 15 repetições, 20 frutos foram destinados para
as análises químicas e funcionais e os 5 frutos restantes, para as análises
físicas, totalizando 75 frutos para as análises físicas e 300 frutos para as
análises químicas e funcionais. Quanto aos resultados, os frutos da pitombeira
possuíram características funcionais ideais e necessárias para o
desenvolvimento e o processamento de novos produtos, como altos teores de
proteínas (31,72% na semente e 39,72% na casca), compostos fenólicos
(101,47% na semente e 106,61% na casca) e carotenoides (10,14% na
semente e 23,39% na película da semente). A polpa da pitomba pode ser
utilizada, tanto para o consumo in natura como processado, visto que dispõe de
valores elevados de resíduo mineral, sólidos solúveis e vitamina C. Os frutos
de pitomba possuem características físicas, químicas e funcionais excelentes,
como observados nos teores elevados de proteínas, compostos fenólicos,
carotenoides e flavonoides em todas as partes do fruto. / The fruits of pitombeira have the potential quality characteristics for industrial
and processed consumption, but are poorly studied, creating the need for more
information on the potential of the species and its use for different purposes.
Considering these aspects, there was a physical, post-harvest fruits of
pitombeira chemical and functional. The fruits of pitombeira from the city of Luís
Gomes-RN were purchased in a street market in the city of Sousa-PB, located
60 km from the city of origin of the fruit and conducted 53 km away in his own
car and put up in boxes cardboard at room temperature to the Academic Unit of
Food Analysis Laboratory of Food Technology Centre of Science and
Technology Agrifood the Federal University of Campina Grande, in the
municipality of Pombal-PB, between the months of June and July 2014 . The
fruits were selected with respect to the absence of physical injuries and
illnesses as well, as its stage of ripeness and size, and then immediately chilled
to 4 ° C. The fruits were divided into 15 repetitions of 25 fruits or about 150g
each. Of this total, in each of the 15 repetitions, 20 fruits were used for the
chemical and functional analyzes, and the remaining 5 fruits, for physical
analysis, for a total of 75 fruits the fruits 300 and physical analysis for chemical
and functional analyzes. As for the results, the fruits of pitombeira possessed
ideal functional and necessary for the development and processing of new
products, such as high protein content (31.72% in seed and 39.72% in the
shell), phenolic compounds (101, 47% in the seed and 106.61% in shell) and
carotenoids (10.14% and 23.39% in the seed in the seed film). The pulp
pitomba can be used for both fresh consumption and processing, as has high
levels of mineral residue, soluble solids and vitamin C. The fruit pitomba have
physical characteristics, excellent chemical and functional, as observed in the
levels high protein, phenolic compounds, flavonoids and carotenoids in all parts
of the fruit.
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Caracteriza??o petrogr?fica e litogeoqu?mica de granitoides ediacaranos no extremo NE da Prov?ncia da Borborema (NE do Brasil) com ?nfase nos pl?tons Gameleira, Pitombeira e TaipuOliveira, Maria Tatiany Duarte de 26 February 2014 (has links)
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Previous issue date: 2014-02-26 / A ?rea estudada situa-se, geograficamente, no extremo NE do Estado do Rio Grande do Norte situados nos munic?pios de Taipu e Po?o Branco e geologicamente inseridos no Terreno Cristalino S?o Jos? do Campestre pertencente ? Prov?ncia Borborema, onde observando rela??es de campo, dados petrogr?ficos e geoqu?micos, permitiram individualizar tr?s pl?tons denominados: Gameleira, Taipu e Pitombeira.
O Pl?ton Gameleira ? composto por rochas granodior?ticas caracterizadas por fenocristais zonados de plagiocl?sios e tendo anfib?lio e biotita como m?ficos principais. Quimicamente, s?o rochas metaluminosas, de natureza c?lcio-alcalina e apresentam car?ter magnesiana. O Pl?ton Pitombeira ? composto por duas f?cies: (a) uma monzogran?tico ? sienogran?tica de textura grossa a porfir?tica caracterizada por fenocristais de K-feldspato e (b) uma de composi??o quartzo dior?tica a tonal?tica distinta por suas ripas de plagiocl?sio parcialmente zonadas e com borda de resfriamento. Quimicamente s?o rochas transicionais entre metaluminosas a peraluminosas, de natureza subalcalina (c?lcio-alcalina de alto K) e car?ter ferroso. Por fim, o Pl?ton Taipu ? formado por rochas monzogran?ticas a sienogran?ticas, contendo biotita como m?fico principal. S?o rochas peraluminosas, de natureza subalcalinas (c?lcio-alcalina de alto K) e car?ter ferroso.
No que se refere ?s an?lises de elementos terras raras (ETR), pode-se inferir que os tr?s pl?tons estudados apresentam anomalias negativas de Eu e enriquecimento em ETR leves, com raz?es de LaN/YbN entre 9,38 a 16,20 ppm (Pl?ton Gameleira), 17,99 a 31,39 ppm (f?cies gran?tica do Pl?ton Pitombeira), 14,15 a 21,81 ppm (f?cies dior?tica do Pl?ton Pitombeira) e 15,17 a 175,41 ppm (Pl?ton Taipu). Analisando os dados qu?micos e os diagramas em conjunto ? poss?vel sugerir que os pl?tons estudados pertencem a um ambiente tect?nico tardi a p?s-colisional.
Abstract
The studied area is geographically situated in the extreme northeastern of Rio Grande do Norte State located in the municipalities of Taipu and Po?o Branco and geologically entered in the Crystalline Land S?o Jos? do Campestre which belongs to Borborema Province, where by observing the field relations, petrographic and geochemical datas, has allowed to individualize three plutons named: Gameleira, Taipu and Pitombeira.
The Gameleira Pluton consists in granodioritic rocks characterized by phenocrysts zoned plagioclase having amphibole and biotite as the main mafic. Which are Chemically, metaluminous rocks, naturally from calc-alkaline and present magnesian character. The Pitombeira Pluton consists in two facies: (a) one monzogranite-syenogranite to coarse texture and to the porphyritic characterized by K-feldspar phenocrysts and (b) quartz dioric-tonalitic composition to a distinct for its laths of plagioclase partially zoned and also with cooling edges. Chemically are transitional rocks between metaluminous to peraluminous, naturally from subalkaline (high-K calc-alkaline) and ferrous character. Thus, the Taipu pluton is formed by monzagranitic-sienogranitic rocks, containing biotite as its main mafic. They are peraluminous rocks, naturally subalkaline (high-K calc-alkaline) and ferrous character.
As regards to the rare earth elements analysis (REE), which can be inferred that the three studied plutons exhibit negative anomalies of Eu and REE slight enrichment, with ratios of LaN / YbN between 9.38 to 16.20 ppm (Gameleira Pluton) 17.99 to 31.39 ppm (Pluton Pitombeira granitic facies), from 14.15 to 21.81 ppm (Pluton Pitombeira dioritic facies) and from 15.17 to 175.41 ppm (Pluton Taipu). Analyzing the chemical and diagrams datas to one another, it?s allowed to suggest that the studied plutons belong to a late tectonic environment to a post-collisional. / The studied area is situated in the northeastern extremity of the Rio Grande do
Norte State, between the municipalities of Taipu and Po?o Branco, and is geologically
inserted into the S?o Jos? do Campestre Crystalline Terrain within the Borborema
Province, where the analysis of field relationships, petrographic and geochemical data
allowed the distinction of three plutons named: Gameleira, Taipu and Pitombeira.
The Gamaleira Pluton is composed of granodioritic rocks characterized by zoned
plagioclase phenocrysts, with amphibole and biotite as the main mafic phases.
Geochemically, these are metaluminous rocks of calc-alkaline nature and magnesian
character. The Pitombeira Pluton encompasses two facies: (a) a coarse-grained to
porphyritic monzo- to syenogranitic facies marked by K-feldspar phenocrysts; and (b) a
quartz dioritic to tonalitic facies with partially zoned plagioclase laths showing chilled
rims. Geochemically, rocks of the monzo- to syenogranitic facies are transitional between
metaluminous and peraluminous, display a subalkaline nature (high K calc-alkaline) and a
ferroan character, whereas rocks of the quartz dioritic to tonalitic facies are metaluminous,
with shoshonitic affinity and ferroan character. Lastly, the Taipu Pluton is made of monzoto
syenogranitic rocks with biotite as the chief mafic mineral. They are peraluminous rocks
of subalkaline nature (high-K calc-alkaline) and ferroan character.
Regarding the rare-earth elements (REE), it is possible to conclude that the three
studied plutons display negative Eu anomalies and a relative enrichment of LREE over
HREE, with LaN/YbN ratios between 9.39 to 16.20 (Gameleira Pluton), 17.99 to 31.39
(granitic facies of the Pitombeira Pluton), 14.15 to 21.81 (dioritic facies of the Pitombeira
Pluton) and 15.17 to 175.41 (Taipu Pluton).
Based on the combined investigation of geochemical data and discrimination
tectonic diagrams, a late- to post-collisional tectonic environment is suggested for the
plutons here studied
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