Brewers' spent grain extract as antioxidants in starch-based active biopolymers
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY(2023)
摘要
Brewer's spent grain (BSG) is a by-product of the brewery and represents a sustainable alternative for application in starch-based active materials. This study aimed to develop starch/poly(vinyl alcohol) films containing BSG extract, with focus on the influence of BSG on the mechanical, structural, and barrier properties of the films. The antioxidant potentials of the extract and the films were proved by ABTS. + (IC50 = 2.0 +/- 0.6 mu g mL(-1)) and DPPH. (IC50 = 196.05 +/- 018.66 mu g mL(-1)) assays. The addition of BSG extract did not have a significant impact on the mechanical performance and weight loss in water of the materials. The incorporation of the extract resulted in a rough surface, without pores and/or cracks. Controlled release of phenolic compounds was observed for BSG3 (3 g.100 g(-1) of BSG extract) (163.3 +/- 20.9 mgGAE.mL(-1)) and BSG5 (5 g.100 g(-1) of BSG extract) (165.7 +/- 23.6 mgGAE.mL(-1)) over a 4 h period. Therefore, this study shows the potential of BSG as an organic source of antioxidants for active biopolymers.
更多查看译文
关键词
active biopolymers,grain extract,antioxidants,starch‐based
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要