摘要
为比较分析豆渣原料和胃肠道模拟消化产物的物化特性和抗氧化力,为制备新型食品添加剂提供一定的理论数据支持。本实验以热风干燥豆渣为原料,模拟人体胃肠道消化环境得到不可消化部分(Indigestible Fraction,IF),并对其基本营养成分、物化特性、多酚含量及抗氧化力进行分析。结果表明,豆渣含IF 90.64%,而其中IF中膳食纤维含量为56.54%。此外,与热风干燥豆渣相比,IF的持水力、持油力和结合水力等在25℃和37℃下均有所提高,抗氧化力也显著增强。在多酚含量方面,豆渣中缩合单宁的含量较高,而IF中则是水解多酚含量占比较高。这表明IF可作为一种富含大量优质膳食纤维、能开发具有抗氧化功能性食品的潜在来源。
In order to analyze the differences of physiochemical properties and antioxidant capacity between okara and indigestible fraction（IF） ,and to provide certain theoretical support for the preparation of new food additives, therefore,in this study,the hot air drying okara was used to simulate the human digestive environment to obtain IF. The nutrition compounds, physiochemical properties, the content of polyphenols and antioxidant capacity were analyzed.The results showed that okara was rich in IF about 90.64%, and IF contained 56.54% dietary fiber. Compared with okara, the physiochemical properties of IF improved either 25℃ or 37 ℃, and the antioxidant capacity of IF also increased,the content of polyphenols differedsignificantly.As for the content of polyphenol,the content of condensed tannin was higher in the okara,while in the IF,hydrolyticpolyphenol content was higher.This means IF could be used a potential product rich in dietary fiber of high quality and developed as a functional food with antioxidants.
出处
《食品工业科技》
CAS
CSCD
北大核心
2015年第23期135-138,142,共5页
Science and Technology of Food Industry
关键词
豆渣
胃肠道模拟消化产物
营养成分
物化特性
抗氧化力
okara
indigestible fraction
nutrition
physiochemical properties
antioxidant capacity
