文献类型： 外文期刊

作者： Yu, Jing ¹ ; Zheng, Xin ¹ ; Zhu, Dawei ¹ ; Xu, Qingyu ¹ ; Xu, Feifei ² ; Chen, Mingxue ¹ ; Meng, Lingqi ³ ; Shao, Yafang ¹ ;

作者机构： 1.China Natl Rice Res Inst, Hangzhou 310006, Zhejiang, Peoples R China

2.Zhejiang Univ, Inst Nucl Agr Sci, Zijingang Campus, Hangzhou 310029, Zhejiang, Peoples R China

3.Hebei Acad Agr & Forestry Sci, Inst Coastal Agr, Tangshan 063299, Hebei, Peoples R China

关键词： Phenolic acids; Flavonoids; INFOGEST; Digestion phase; Whole rice grains

期刊名称：FOOD CHEMISTRY-X （ 影响因子：8.2； 五年影响因子：8.2 ）

ISSN： 2590-1575

年卷期： 2024 年 24 卷

页码：

收录情况： SCI

摘要： Polyphenols, a major bioactive constituent in rice grain, require processing and digestion before being absorbed by human body. Free and bound phenolics, flavonoids and their antioxidant activities in non-pigmented, red and black rice after cooking and INFOGEST digestions of oral, gastric and intestinal phases were investigated. It showed that cooking caused great losses of polyphenols and antioxidant activity. Free ferulic, isoferulic and pcoumaric acid in most rice were highest at intestinal phase (p < 0.05). Bound ferulic acid in three colored rice, bound p-coumaric acid in black rice and catechin in red rice were higher at oral and/or gastric phase. After cooking, total flavonoids of non-pigmented and pigmented rice were highest at intestinal and gastric phase, respectively. Cyanidin-3-O-glucoside, peonidin-3-O-glucoside and quercetin peaked at intestinal phase in black rice. It suggested that black rice has a greater potential to be used in meal balance and functional product development.