Potential health benefits of lowering gas production and bifidogenic effect of the blends of polydextrose with inulin in a human gut model
文献类型： 外文期刊
作者： Zhu, Liying 1 ; Guo, Fangjie 2 ; Guo, Zeyu 2 ; Chen, Xiaoqiang 3 ; Qian, Xiaoguo 3 ; Li, Xianglong 4 ; Li, Xiaoqiong 1 ; Li, Jinjun 1 ; Wang, Xin 1 ; Jia, Weiguo 5 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Food Sci, Hangzhou, Peoples R China
2.Henan Tailijie Biotech Co Ltd, Mengzhou, Peoples R China
3.Fengning Pingan High Tech Ind Co Ltd, Shijiazhuang, Peoples R China
4.Suzhou Hailu Biotech Co Ltd, Suzhou, Peoples R China
5.Sichuan Univ West China Hosp, Ctr Gerontol & Geriatr, Natl Clin Res Ctr Geriatr, Chengdu, Peoples R China
关键词： polydextrose; in vitro study; short chain fatty acids; gas production; 16S rRNA gene sequencing; blends of PDX and inulin; bifidogenic effect
期刊名称：FRONTIERS IN NUTRITION （ 影响因子：6.59； 五年影响因子：6.873 ）
ISSN： 2296-861X
年卷期： 2022 年 9 卷
页码：
收录情况： SCI
摘要： Polydextrose is a nutrient supplement, which is widely applied in the food industry. The use of polydextrose in combination with prebiotics and probiotics has recently increased, whereas the fermentation properties of its blend have not yet been fully revealed. We evaluated the metabolic profile of polydextrose, inulin, and their blends by a batch in vitro fermentation of fifteen human fecal inocula. After 24 h of fermentation, polydextrose increased the production of gas, ammonia, and several short chain fatty acids, including propionate and butyrate, when compared to its blends, inulin, and fructo-oligosaccharides. Furthermore, polydextrose had the slowest degradation rate of all the carbohydrates tested, consistent with its partial fermentation in the distal colon. The 16S rRNA gene sequencing analysis of the gut microbiome exhibited significantly increased relative abundance of Clostridium_XVIII, Megamonas, Mitsuokella, and Erysipelotrichaceae_incertae_sedis in polydextrose compared to other carbohydrates. On the other hand, the blends of polydextrose and inulin (1:1 or 2:1) showed reduced gas production and similar bifidogenicity to inulin alone. The blends not only had similar alpha-diversity and PCoA to inulin but also had a similar abundance of beneficial bacteria, such as Faecalibacterium and Roseburia, suggesting potential health benefits. Also their low gas production was likely due to the abundance of Faecalibacterium and Anaerostipes, which were negatively correlated with gas production. Additionally, our in vitro fermentation model shows advantages in the large-scale assessment of fermentation performance.
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