| Literature DB >> 31194907 |
Er Sheng Gong1, Ningxuan Gao1, Tong Li2, Hongyu Chen3, Yuehua Wang1, Xu Si1, Jinlong Tian1, Chi Shu1, Shunjing Luo4, Jiyue Zhang1, Zicong Zeng4, Wen Xia5, Bin Li1, Chengmei Liu4, Rui Hai Liu2.
Abstract
Most of the previous in vitro digestion treatments were conducted directly to whole grains without extraction of free phenolics, thus the bioaccessible phenolics contained both free phenolics that survived the digestion and digested phenolics released by digestion. However, the profiles of digested phenolics released by digestion remain unknown. This study was designed to investigate the phytochemical contents, peroxyl radical scavenging capacities (PSCs), and cellular antioxidant activities (CAAs) of free, digested, and bound fractions of whole grains. Total phenolic contents of whole grains were highest in digested fraction, followed by free and bound fractions. The predominant phenolics were 12 phenolic acids and one flavonoid, which mostly existed in bound forms, then in digested and free forms. The digested phenolics bound to proteins were in conjugated form. The bound fractions had the highest PSCs, followed by free and digested fractions. CAAs were highest in bound fractions, followed by digested and free fractions.Entities:
Keywords: diferulic acid; gastrointestinal digestion; polyphenol; whole grain
Mesh：
Substances：
Year: 2019 PMID： 31194907 DOI： 10.1021/acs.jafc.9b02245
Source DB: PubMed Journal: J Agric Food Chem ISSN： 0021-8561 Impact factor: 5.279