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标题：Experimental Determination of the Threshold Dose for Bifidogenic Activity of Dietary 1-Kestose in Rats
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作者：Ayako Watanabe ; Yoshihiro Kadota ; Hijiri Yokoyama 等
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2020
卷号：9
期号：1
页码：4-8
DOI：10.3390/foods9010004
出版社：MDPI Publishing
摘要：1-Kestose is a non-digestible oligosaccharide consisting of glucose linked to two fructose units. While 1-kestose is not digested in the small intestine of mammals, it is fermented in the ceca and colon, where the growth of bifidobacteria is promoted. In the present study, we assessed the threshold dose of dietary 1-kestose that increased cecal bifidobacterial levels in rats. Rats were fed experimental diets containing 0% to 0.3% 1-kestose for four weeks. The levels of the genus Bifidobacterium and total gut bacteria were significantly increased in cecal samples of rats fed the 0.3% 1-kestose diet. Further, a significant correlation between the dose of 1-kestose and the levels of cecal Bifidobacterium and total gut bacteria was observed. The minimum dose of dietary 1-kestose to induce significant bifidogenic activity in rats was 0.3% by weight in the diet.
关键词：prebiotics; 1-kestose; Bifidobacterium prebiotics ; 1-kestose ; Bifidobacterium