In vitro fermentation characteristics of polysaccharide from Sargassum fusiforme and its modulation effects on gut microbiota
文献类型: 外文期刊
作者: Kong, Qiuhong 1 ; Zhang, Ruifen 2 ; You, Lijun 1 ; Ma, Yongxuan 2 ; Liao, Lan 5 ; Pedisic, Sandra 6 ;
作者机构: 1.South China Univ Technol, Sch Food Sci & Engn, 381 Wushan Rd, Guangzhou 510640, Guangdong, Peoples R China
2.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Guangdong Key Lab Agr Prod Proc, Key Lab Funct Foods,Minist Agr & Rural Affairs, Guangzhou 510610, Guangdong, Peoples R China
3.111 Ctr, Overseas Expertise Intro Ctr Discipline Innovat F, Guangzhou 510640, Guangdong, Peoples R China
4.Guangzhou Liheng Clin Nutr Co Ltd, Guangzhou 510610, Guangdong, Peoples R China
5.Foshan Univ, Coll Food Sci & Technol, Dept Food Sci, Foshan 528000, Guangdong, Peoples R China
6.Univ Zagreb, Fac Food Technol & Biotechnol, Prolaz Kasandrica 6, Zadar 23000, Croatia
关键词: Sargassum fusiforme polysaccharide (SFP); Structural characteristics; Fermentation; Short chain fatty acids (SCFAs); Gut microbiota
期刊名称:FOOD AND CHEMICAL TOXICOLOGY ( 影响因子:4.679; 五年影响因子:4.55 )
ISSN: 0278-6915
年卷期: 2021 年 151 卷
页码:
收录情况: SCI
摘要: In this study, polysaccharides from Sargassum fusiforme (SFP) were obtained by cellulase assisted hot water extraction. The chemical composition, structural characteristics, and in vitro fermentation properties of SFP were investigated. Results showed that the contents of total carbohydrate, protein, uronic acid and sulfate in SFP were 83.25%, 1.42%, 12.80% and 7.81%, respectively. It mainly consisted of fucose glucose and galactose, with molecular weight of 255.83 kDa. UV spectrum, FTIR, SEM and AFM results showed that SFP was a typical sulfate polysaccharide with relative smooth surface and regular shape. After in vitro fermentation for 24 h, the pH value of fermentation medium declined significantly (p < 0.05), utilization of carbohydrate was 53.17%. The contents of total SCFAs increased by 10.77 times. Moreover, SFP fermentation could change obviously the microbiota composition. It significantly increased the abundance of Faecalibacterium (increased by 49.07% compared with the Blank24 group), Phascolarctobacterium (increased by 88.06%), Bifidobacterium (increased by 139.13%), Ruminococcaceae_UCG-014 (increased by 177.78%), and Lactobacillus (increased by 400.00%), decreased the abundance of Prevotella_9 (decreased by 34.54%) and Blautia (decreased by 40.79%) at genus level. These results showed that SFP could be utilized by microbiota in human feces, and may have the potential to improve intestinal health.
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