Advanced search
Start date
Betweenand

Food diet components interactions and antioxidant capacity in vitro of guarana (Paullinia cupana)

Grant number: 11/21272-3
Support type:Regular Research Grants
Duration: September 01, 2012 - August 31, 2014
Field of knowledge:Agronomical Sciences - Food Science and Technology
Principal Investigator:Elizabeth Aparecida Ferraz da Silva Torres
Grantee:Elizabeth Aparecida Ferraz da Silva Torres
Home Institution: Faculdade de Saúde Pública (FSP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Assoc. researchers:Geni Rodrigues Sampaio ; Luciana Cristina Brigatto Fontes

Abstract

In the last few years polyphenols have attracted great interest by the beneficial effects on human health found in many studies. These compounds are presents in plant- derived foods, as the Guarana (Paullinia cupana), a typical product from Amazon biota. It is not only related to stimulant capacity, but also to antioxidant activity, due to the presence of phenolics compounds in the composition. The biodisponibility of bioactives ingested by via oral encompass the following physiological process: bioaccessibility, absorption, distribution, metabolism and excretion. This study aimed to analyze the interaction effect of guarana in powder with protein, starch and lipid in the antioxidant capacity in vitro of phenolic compounds of guarana. The following analyses of guarana powder and the digestion in vitro products will be evaluated: total phenolics compounds by Folin- Ciocalteau reagent, total proantocyanidins by acidic hydrolysis, antioxidant activity by ORAC and TEAC methods. Catechins and proantocyanidins will be analyzed by HPLC. Statistical analysis of means, standard deviation, ANOVA and Tukey test will use software Statistical Package for the Social Sciences. For rotational central composition design, multiple regression, ANOVA and significance test (p<0.05) will be used Statistica 7.0 software. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
NOGUEIRA MENDES, THAISE MARIA; MURAYAMA, YUKIHISA; YAMAGUCHI, NATSUMI; SAMPAIO, GENI RODRIGUES; BRIGATTO FONTES, LUCIANA CRISTINA; FERRAZ DA SILVA TORRES, ELIZABETH APARECIDA; TAMURA, HIROTOSHI; YONEKURA, LINA. Guarana (Paullinia cupana) catechins and procyanidins: Gastrointestinal/colonic bioaccessibility, Caco-2 cell permeability and the impact of macronutrients. Journal of Functional Foods, v. 55, p. 352-361, APR 2019. Web of Science Citations: 2.
SILVA, C. P.; SAMPAIO, G. R.; FREITAS, R. A. M. S.; TORRES, E. A. F. S. Polyphenols from guarana after in vitro digestion: Evaluation of bioacessibility and inhibition of activity of carbohydrate-hydrolyzing enzymes. Food Chemistry, v. 267, n. SI, p. 405-409, NOV 30 2018. Web of Science Citations: 15.
SILVA, C. P.; SAMPAIO, G. R.; FREITAS, R. A. M. S.; TORRES, E. A. F. S. Polyphenols from guarana after in vitro digestion: Evaluation of bioacessibility and inhibition of activity of carbohydrate-hydrolyzing enzymes. Food Chemistry, v. 267, n. SI, p. 405-409, NOV 30 2018. Web of Science Citations: 0.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.