Submitted by Natalie Mendes (nataliermendes@gmail.com) on 2015-07-28T23:45:37Z No. of bitstreams: 1 Disserta??o Lara Raisa Cheles.pdf: 1045712 bytes, checksum: feec175794486c72d1aa9c07b185ee70 (MD5) / Made available in DSpace on 2015-07-28T23:45:37Z (GMT). No. of bitstreams: 1 Disserta??o Lara Raisa Cheles.pdf: 1045712 bytes, checksum: feec175794486c72d1aa9c07b185ee70 (MD5) Previous issue date: 2014-05-06 / Item withdrawn by Luis Ricardo Andrade da Silva (lrasilva@uefs.br) on 2015-08-01T01:02:00Z Item was in collections: Cole??o UEFS (ID: 1) No. of bitstreams: 1 Disserta??o Lara Raisa Cheles.pdf: 1045712 bytes, checksum: feec175794486c72d1aa9c07b185ee70 (MD5) / Item reinstated by Luis Ricardo Andrade da Silva (lrasilva@uefs.br) on 2018-06-08T21:00:08Z Item was in collections: Cole??o UEFS (ID: 1) No. of bitstreams: 1 Disserta??o Lara Raisa Cheles.pdf: 1045712 bytes, checksum: feec175794486c72d1aa9c07b185ee70 (MD5) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The use of plant extracts and phytochemicals with medicinal purpose is one of the oldest forms of medical applications of humanity, and currently, the use of herbal medicines has increased in population. Considering the popular use of Lippia origanoides in the treatment of respiratory and gastrointestinal diseases and antiseptic action of its essential oil, this study aimed to test, through of the Minimum Inhibitory Concentration and Minimum Microbicidal Concentration, the antimicrobial activity of the essential oils of L. origanoides resulting from plants after treatment with plant metabolism regulators: acetylsalicylic acid, jasmonic acid, 6-benzylaminopurine, gibberellic acid, Stimulate ? and distilled water (control), continuing earlier work by our group. The results for the antimicrobial activity of the studied species varied according to the treatment received, collection period and the microorganism tested. In general, the 12 essential oils tested showed activity against the seven test microorganisms used. Oils resulting from treatment with acetylsalicylic acid, jasmonic acid and gibberellic acid had significantly lower MIC values, highlighting their high efficacy; being evident that the time for collecting the samples interfered in these results. The oil resulting from the first collection of plants were in general more efficient than the third. There was significant difference between the MIC values for strains of C. albicans CCMB 266 and CCMB 286, the latter being more sensitive to the oils from both collection periods. / O uso de extratos vegetais e fitoqu?micos com finalidade medicinal ? uma das mais antigas formas de aplica??o medicinal da humanidade, e atualmente, a utiliza??o de medicamentos fitoter?picos tem aumentado na popula??o brasileira. Considerando a utiliza??o popular de Lippia origanoides no tratamento de doen?as respirat?rias e gastrointestinais e a a??o antiss?ptica de seu ?leo essencial, o presente trabalho teve como objetivo testar, por meio do Concentra??o Inibit?ria M?nima e Concentra??o Microbicida M?nima, a atividade antimicrobiana, dos ?leos essenciais de L. origanoides resultantes de plantas ap?s tratamentos com os reguladores do metabolismo vegetal: ?cido acetilsalic?lico, ?cido jasm?nico, 6-benzilaminopurina, ?cido giber?lico, Stimulate? e ?gua destilada (controle), dando continuidade a um trabalho anterior de nosso grupo. Os resultados relativos ao potencial antimicrobiano da esp?cie estudada variaram de acordo com o tratamento recebido, per?odo de coleta e o micro-organismo testados. Em geral, os 12 ?leos essenciais testados apresentaram atividade contra os sete micro-organismos teste utilizados. Os ?leos resultantes do tratamento com ?cido acetilsalic?lico, ?cido jasm?nico e ?cido giber?lico apresentaram valores de MIC consideravelmente baixos, evidenciando a alta efic?cia dos mesmos, sendo evidente que a ?poca de coleta das amostras interferiu nestes resultados. Os ?leos resultantes da primeira coleta de plantas foram, em geral, mais eficientes que os da terceira. Houve diferen?a significativa entre os valores de MIC para as cepas de C. albicans CCMB 266 e CCMB 286, sendo a ?ltima mais sens?vel aos ?leos de ambos os per?odos de coleta.

Made available in DSpace on 2014-12-17T14:16:24Z (GMT). No. of bitstreams: 1 AnaLRS.pdf: 726183 bytes, checksum: 81046db5b8c498443b16524a30d07eff (MD5) Previous issue date: 2007-09-29 / Schinus terebinthifolius Raddi is used in the treatment of skin and mucosal injuries, infections of respiratory, digestive and genitourinary systems. Currently one of the biggest problems faced for the industry of phytopharmaceuticals with regard to the quality of raw materials is the microbial contamination. The aim this study was to evaluate the antimicrobial action of the hidroalcoholic extract of aroeira, beyond testing the effectiveness of the preservative system in hidrogel to the base of this extract. The extracts were prepared by maceration in the ratio of 1:10 of solvent plant/with alcohol 40%. The methods for microbial count were pour plate and test for specific microorganisms, analyzing in third copy each one of the samples. The antimicrobial activity of aroeira extracts was performed using an agar diffusion method, using strains of S. aureus, P. aeruginosa, E. coli, B. subtilis, C. albicans, C. tropicalis, C. krusei, C. guilliermondii, T. rubrum, M. gypseum, A. flavus and A. niger. The formula with aroeira was evaluated by the challenge test. This method consisted of artificial contamination the sample with separate in?culos of A. niger, C. albicans, E. coli e S. aureus aeruginosa and determinations of survivors for the method of counting for pour plate , during times 0, 24h, 48h, 7 days, 14 days, 21 days and 28 days. How much to the results, one verified that the extract of aroeira in the 13,5 concentration mg/mL presented antimicrobial activity for cepas of E. coli, B. subtilis, P. aeruginosa e S. aureus, producing inhibition zone, on average with 13 mm of diameter. However it did not present no fungi activity. The formula with aroeira containig both methylparaben and propylparaben showed a good efficacy in challenge test front to strains of A. niger, C. albicans, E. coli, S. aureus. The A criteria of European Pharmacopoeia, adopted in this work, was verified that this product revealed the good preservative efficacy for the challenge test, time interval of the 28 days. However, it is interesting to extend this study, in order to carry through the sped up stability and the test of shelf, to establish the validity of this formularization / Schinus terebinthifolius Raddi, conhecida popularmente como aroeira da praia, ? utilizada na medicina tradicional para o tratamento de les?es e ?lceras de pele e mucosas, infec??es do sistema respirat?rio, digest?rio e geniturin?rio. Atualmente, um dos maiores problemas enfrentados pela ind?stria de fitoter?picos com rela??o ? qualidade das mat?rias-primas de origem vegetal ? a contamina??o microbiana. Este trabalho objetivou avaliar a a??o antimicrobiana do extrato hidroalc?olico de aroeira, al?m de testar a efic?cia do sistema conservante em formula??o de hidrogel ? base desse extrato. Os extratos foram obtidos por macera??o na propor??o de 1:10 de planta/solvente com ?lcool a 40%. Os m?todos microbiol?gicos utilizados foram o de contagem de microrganismos em placa por pour plate e o da pesquisa de pat?genos, analisando em triplicata cada uma das amostras. A atividade antimicrobiana dos extratos de aroeira foi avaliada atrav?s do m?todo de difus?o em ?gar, empregando as cepas de Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Bacillus subtilis, Candida albicans, Candida tropicalis, Candida krusei, Candida guilliermondii, Trichophyton rubrum, Microsporum gypseum, Aspergilus flavus e Aspergilus niger. A f?rmula com aroeira foi avaliada pelo teste do desafio. Este m?todo consistiu em contaminar artificialmente a amostra com in?culos separados de A. niger, C. albicans, E. coli, P. aeruginosa e S. aureus e determinar os sobreviventes pelo m?todo de contagem por pour plate , durante os tempos 0, 24h, 48h, 7 dias, 14 dias, 21 dias e 28 dias. Quanto aos resultados, verificou-se que o extrato de aroeira na concentra??o de 13,5 mg/mL apresentou atividade antimicrobiana para as cepas de E. coli, B. subtilis, P. aeruginosa, S. aureus, produzindo halos de inibi??o, em m?dia com 13 mm de di?metro. No entanto n?o apresentou nenhuma atividade antif?ngica. Quanto ao teste do desafio, verificou-se que a formula??o com gel de aroeira associada aos conservantes metil e propilparabeno apresentou-se eficaz frente ?s cepas de A. niger, C. albicans, E. coli, P. aeruginosa e S. aureus. Conforme o crit?rio A da Farmacop?ia Europ?ia, adotado neste trabalho, verificou-se que esse produto mostrou-se eficaz para o teste do desafio durante o per?odo dos 28 dias. No entanto, ? interessante ampliar esse estudo, a fim de realizar a estabilidade acelerada e o teste de prateleira, para estabelecer a validade dessa formula??o