期刊
BIORESOURCE TECHNOLOGY
卷 235, 期 -, 页码 358-365出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.03.139
关键词
Protease; alpha-Amylase; beta-Glucosidase; Fermentation; Peptides; Polyphenols
The aim of this study was the production of soybean bioactive hydrolysate using Bacillus spp. isolated from kinema. Totally 251 bacteria isolated from kinema samples, collected at different time period were screened for protease, beta-glucosidase and alpha-amylase activities and further identified by ARDRA based grouping followed by analysis of 16S rRNA gene sequence similarity. The results showed that Bacillus subtilis, Bacillus amyloliquefaciens and Bacillus licheniformis were the major Bacillus species. Twelve fermentative strains belonging to these groups and having high protease, alpha-amylase and beta-glucosidase activity were used for solid state fermentation. The best strains for soybean fermentation that result in production of protein hydrolysates rich in polyphenols that have higher bioactivity were B. subtilis KN12C, B. amyloliquefaciens KN2G and B. licheniformis KN13C. Potential isolates can be applied for the production of soybean hydrolysates and can also find application in production of value added products from by-products of soybean processing industries. (C) 2017 Elsevier Ltd. All rights reserved.
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