Functional Properties, Rheological Characteristics, Simulated Digestion, and Fermentation by Human Fecal Microbiota of Polysaccharide from Morchella importuna

被引:2
作者
Wang, Shurong [1 ]
Li, Dongjie [1 ]
Li, Guangle [1 ]
Duan, Naixin [1 ]
He, Chang [1 ]
Meng, Junlong [1 ,2 ]
Cheng, Yanfen [1 ]
Geng, Xueran [1 ]
Hou, Ludan [1 ]
Chang, Mingchang [2 ]
Xu, Lijing [1 ]
机构
[1] Shanxi Agr Univ, Coll Food Sci & Engn, Taigu 030801, Peoples R China
[2] Shanxi Engn Res Ctr Edible Fungi, Taigu 030801, Peoples R China
关键词
Morchella importuna polysaccharide; processing properties; simulated fermentation; gut microbiota; hypoglycemic; WATER-SOLUBLE POLYSACCHARIDES; IN-VITRO FERMENTATION; ANTIOXIDANT PROPERTIES; STRUCTURAL-CHARACTERIZATION; GUM; IMPACT;
D O I
10.3390/foods13132148
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Morchella importuna polysaccharide (MIP) has been proven to have obvious hypoglycemic effects on mice with type 2 diabetes (T2DM). This study looked at the functional and rheological characteristics of MIP, and investigated the effects of MIP on the human fecal microbiota through in vitro fermentation experiments. The outcomes demonstrate the excellent oil-holding capacity, emulsifying, foaming, and rheological characteristics of MIP. After salivary gastrointestinal digestion, the Mw of MIP decreased from 398.2 kDa and 21.5 kDa to 21.9 kDa and 11.7 kDa. By 16S rRNA sequencing of bacteria fermented in vitro, it was found that MIP did not improve the richness and diversity of intestinal microorganisms, but it may exert an anti-T2DM function by significantly increasing the relative abundance of Firmicutes and promoting Ruminococcaceae_UCG_014, Bacteroides, and Blautia proliferation. Escherichia-Shigella could also be inhibited to improve the intestinal microenvironment. In addition, the fermentation of MIP increased the total short-chain fatty acid (SCFA) concentration from 3.23 mmol/L to 39.12 mmol/L, and the propionic acid content increased significantly. In summary, MIP has excellent processing performance and is expected to exert potential anti-T2DM activity through the human intestinal microbiota, which has broad market prospects.
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页数:20
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