Microbiome-metabolomics-based insight into the protective effects of dietary fiber from sweetpotato residues on the high-fat diet-induced intestinal integrity damage
文献类型： 外文期刊
作者： Yin, Liqing 1 ; Azi, Fidelis 2 ; Xia, Xiudong 3 ; Jin, Yunyi 1 ; Lu, Xinghua 1 ; Cheng, Jiyu 1 ; Guan, Yuge 1 ; Cheng, Junfeng 1 ; Lu, Guoquan 1 ; Pang, Linjiang 1 ;
作者机构： 1.Zhejiang A&F Univ, Coll Food & Hlth, Hangzhou 311300, Peoples R China
2.Guangdong Technion Israel Inst Technol GTIIT, Dept Chem Engn, Shantou 515063, Guangdong, Peoples R China
3.Jiangsu Acad Agr Sci, Inst Agr Prod Proc, 50 Zhongling St, Nanjing, Peoples R China
关键词： Dietary fiber; Physicochemical property; Metabolomics analysis
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：7.7； 五年影响因子：7.7 ）
ISSN： 0141-8130
年卷期： 2024 年 275 卷
页码：
收录情况： SCI
摘要： Dietary fibers have attracted much attention due to their multiple benefits on gut health. In this work, the protective mechanism of dietary fiber from sweetpotato residues (SRDF) on the high-fat diet (HFD)-induced intestinal barrier injury was investigated using microbiome-metabolomics-based approach. The physicochemical property analysis demonstrated a thermal stability below 200 degrees C and porous pectin-polysaccharide structure of SRDF with high in vitro functional activities. The biochemical analysis indicated that SRDF significantly ameliorated intestinal barrier function by improving intestinal morphology and permeability and inhibiting inflammatory response. Microbiome analysis demonstrated that SRDF significantly reversed the HFD-induced dysbacteriosis, decreased the ratio of Firmicutes/Bacteroides and enhanced the relative abundance of probiotics, such as Muribaculaceae and Bifidobacteriaceae. Metabolomics analysis showed that SRDF also significantly altered the metabolic profile in the colon, wherein the differential metabolites were mainly involved in amino acid metabolism (especially tryptophan). Pearson correlation coefficient identified the beneficial relationship between intestinal microbiome and metabolome induced by SRDF. The limitation of this study was that the mouse model may not fully replicate the human intestinal responses due to the difference between the standard environmental conditions and natural world. Generally, our results implied the great potential of SRDF as a functional food ingredient.
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