发酵
食品科学
多糖
化学
脂肪酸
双歧杆菌
醋酸
细菌
生物化学
生物
乳酸菌
遗传学
作者
Yida Xu,Yongli Ye,Chang Liu,Biyan Chen,Jian Ji,Jiadi Sun,Yinzhi Zhang,Xiulan Sun
出处
期刊:Food Chemistry
[Elsevier]
日期:2023-02-01
卷期号:402: 134068-134068
被引量:10
标识
DOI:10.1016/j.foodchem.2022.134068
摘要
Steam-processed Polygonatum sibiricum (PS) has been used as food for thousands of years. However, fewer studies concentrated on the effects of polysaccharides (SPSP) from the steamed PS on the intestinal tract. With fermentation in vitro, we investigated the impact of SPSP on the fatty acids and microbiotas. Results showed significant increases in short-chain fatty acids (SCFAs) like acetic acid and propionic acid, and long-chain fatty acids (LCFAs) like cis, cis, cis-9,12,15-linolenic acid, cis-6-octadecenoic acid, and cis-9-octadecenoic acid after 12 h. The positive-associated beneficial microbiotas were observed with proliferation like Parabacteroides and Bifidobacterium. Harmful microbiota like Shigella showed decreased abundance. Further, a small molecule polysaccharide was separated from the SPSP with the structure of one glucose and ten fructose, which significantly increased SCFAs and LCFAs contents during fermentation. The potential benefits of SPSP were proved by the analysis of fatty acid levels and the intestinal microbiotas during fermentation.
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