期刊
HELIYON
卷 8, 期 11, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.heliyon.2022.e11053
关键词
Soybean hulls polysaccharides; Digestibility; Probiotics; SCFAs
资金
- Project of Doctoral Program of Bohai University
- [0519BS015]
This study examined the extraction of soybean hull polysaccharides (ASPs) using different processes and analyzed their characteristics and prebiotic activity. The results showed that enzyme-assisted polysaccharides had better resistance to digestion and promoted the growth of probiotics, indicating their potential as novel probiotics.
In this study, five different processes, including hot water (HW-ASP), single enzyme (cellulase, pectinase and papain; C-ASP, PE-ASP, and P-ASP), and compound-enzyme (cellulose: pectinase: papain 1/4 3:3:1; CE-ASP) for the extraction of soybean hull polysaccharides (ASPs) were employed, and the characterization and prebiotics activity of five polysaccharides were analyzed. These polysaccharides possessed different primary structural character-istics, including molecular weight distribution, monosaccharide composition, chemical composition, surface morphology, potential particle size, etc., while similar functional groups. In vitro digestibility assay indicated that C-ASP had strong resistance to gastric juice hydrolysis and alpha-amylase as compared with HW-ASP. Furthermore, C-ASP elevated the acidifying activity and promoted the growth of probiotics (Lactobacillus paracasei, Lactobacillus rhamnosus, and Lactobacillus acidophilus) during the fermentation (p < 0.05). C-ASP improved the levels of total short-chain fatty acids (SCFAs) and had better prebiotic activity than HW-ASP (p < 0.05). These findings denote that enzyme-assisted polysaccharides extracted from soybean hulls have the potential to be served as novel probiotics.
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