Výsledky vyhledávání - "George Gonzales Ortega"

Chemical and technological evaluation of the Phyllanthus niruri aerial parts as a function of cultivation and harvesting conditions

Autor: George Gonzales Ortega, Angélica Garcia Couto, Pedro Ros Petrovick, Marli Liani Kunzler, Bárbara Spaniol, Pedro Melillo de Magalhães

Publikováno v: Revista Brasileira de Farmacognosia, Volume: 23, Issue: 1, Pages: 36-43, Published: 01 FEB 2013
Revista Brasileira de Farmacognosia, Vol 23, Iss 1, Pp 36-43 (2013)
Revista Brasileira de Farmacognosia v.23 n.1 2013
Revista Brasileira de Farmacognosia
Sociedade Brasileira de Farmacognosia (SBFgnosia)
instacron:SBFGNOSIA
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

Tea from Phyllanthus niruri L., Phyllanthaceae, aerial parts is commonly used by Brazilian folk medicine for its benefits on the treatment of genitourinary disorders, for what the polyphenolic compounds are mainly responsible. The yield of such compo

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Estudo da relação estrutura-atividade de saponinas hemolíticas e/ou imunoadjuvantes mediante uso de análise multivariada

Autor: Samuel Kaiser, George Gonzales Ortega, Cabral Pavei

Publikováno v: Revista Brasileira de Farmacognosia v.20 n.3 2010
Revista Brasileira de Farmacognosia
Sociedade Brasileira de Farmacognosia (SBFgnosia)
instacron:SBFGNOSIA
Revista Brasileira de Farmacognosia, Volume: 20, Issue: 3, Pages: 300-309, Published: JUL 2010
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Revista Brasileira de Farmacognosia, Vol 20, Iss 3, Pp 300-309

Entre as diversas atividades biológicas relatadas para as saponinas, merecem destaque aquelas relacionadas ao aumento da resposta imune e a ruptura das membranas dos eritrócitos. No desenvolvimento de vacinas, ambas as propriedades exercem atividad

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::455c1d3089e2f985ba29bddc26afc69c
https://doi.org/10.1590/s0102-695x2010000300003

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Study of the Specificity of Cross-Povidone (PVPP) as binding agent in the quantification of polyphenolic compounds

Autor: Simone Gasparin Verza, George Gonzales Ortega, Cabral Pavei

Publikováno v: Journal of the Brazilian Chemical Society, Volume: 19, Issue: 8, Pages: 1627-1633, Published: 2008
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Journal of the Brazilian Chemical Society v.19 n.8 2008
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ

Cross-povidone, or polyvinylpyrrolidone (PVPP) affords an analytical alternative instead of hide-powder and casein as binding agent in the content assay of vegetable tannins. In this work we studied the specificity of PVPP to bind polyphenolics in th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ecb198cdd24f429c17ff7c2bc82ca6d
https://doi.org/10.1590/s0103-50532008000800025

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Foam-forming properties of Ilex paraguariensis (mate) saponin: foamability and foam lifetime analysis by Weibull equation

Autor: Gizele Scotti do Canto, Maria Paula Garofo Peixoto, Janine Treter, George Gonzales Ortega

Publikováno v: Química Nova v.33 n.7 2010
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Química Nova, Vol 33, Iss 7, Pp 1440-1443 (2010)
Química Nova, Volume: 33, Issue: 7, Pages: 1440-1443, Published: 2010

Saponins are natural soaplike foam-forming compounds widely used in foods, cosmetic and pharmaceutical preparations. In this work foamability and foam lifetime of foams obtained from Ilex paraguariensis unripe fruits were analyzed. Polysorbate 80 and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32d706be444cb11403e92dccb45c98ab
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000700003

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Evaluation of analytical variables of the folin-ciocalteu method for the quantitation of the total tannins content using a psidium guajava l. leaves aqueous extract as a model

Autor: Maria T. Kreinecker, Simone Gasparin Verza, George Gonzales Ortega, Valquíria Reis, Amélia T. Henriques

Publikováno v: Química Nova v.30 n.4 2007
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

The main analytical variables of a modified Folin-Ciocalteu method were studied by UV-Vis and gradient HPLC-PDA methods, using purified (PC) and technical grade (TGC) casein. Rutin and an aqueous extract of Psidium guajava L. leaves were used as mode

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c1c557022d44b6e95907195345d2348
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000400011

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