Affiliation:
1. Universidade Federal de Santa Maria (UFSM), Brazil
2. Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
Abstract
ABSTRACT: This study aimed to extract isoflavones from soybean molasses with different solvents, furthermore, the selected extract, which showed overall desirable characteristics was selected to evaluate the potentials of different encapsulating agents. The encapsulating agents employed for the study included 18% Maltodextrin DE20 (T1), 18% Hi-maize (T2), and a mixture of equal proportions of 9% Maltodextrin DE20 and 9% of Hi-maize (T3). Solvents such as 80% ethanol and methanol, and grain alcohol in varying different concentrations of 50 and 80% were used for the studies. The best solvent for the extraction of phenolics and total isoflavones was 50% cereal alcohol, this extract also presented higher antioxidant activity. Evaluation of the encapsulating agents revealed that 18% Hi-maize with inlet air of 130 °C was best suited for the encapsulation of isoflavones. The ORAC method showed that microcapsules with the 18% Hi-maize encapsulating agent also had higher antioxidant activity.
Subject
General Veterinary,Agronomy and Crop Science,Animal Science and Zoology
Reference24 articles.
1. Physical properties of powdered pineaple (Ananas comosus) juice - effect of malt dextrin concentration and atomatization speed;ABADIO F. D.;J. Food Eng,2004
2. Atividade antioxidante e teor de fenólicos totais em hortaliças orgânicas e convencionais.;ARBOS K. A.;Cienc. Tec. Alim,2010
3. Use of a free radical method to evaluate antioxidante activity.;BRAND-WILLIANS W.;Food Sci. and Technol,1995
4. Breve panorama do gerenciamento de resíduos sólidos em indústrias alimentícias no Brasil. In: Semana de Tecnologia de Alimentos.;CANTERI M. H. G.;Anais da VI Semana de Tecnologia de Alimentos.,2008
5. Efeitos de genótipos, ambientes e de tratamentos hidrotérmicos na concentração de isoflavonas agliconas em grãos de soja.;CARRÃO-PANIZZI M. C.;Pesq. Agropec. Bras,2003