Zhang Yinxiao, Zhang Chi, Wang Jingyi, Wen Yanchao, Li He, Liu Xinqi
Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, China.
Curr Res Food Sci. 2023 Dec 14;8:100662. doi: 10.1016/j.crfs.2023.100662. eCollection 2024.
Soybean protein isolates and their hydrolysates are considered as one of the most high-quality proteins among plant proteins, and current research has shown that they have potential probiotic functions. The purpose of this study was to investigate the effects of digested soybean protein isolates (dSPI) and digested soybean peptides (dPEP) on K25 alone and the two bacteria when co-cultured with . It showed that dSPI and dPEP promoted the growth and metabolism of K25, and dSPI had a better effect. Besides, dSPI and dPEP still promoted the growth and organic acid secretion of K25 when co-cultured with , and the dPEP treatment was more effective than dSPI. Moreover, dSPI and dPEP reduced the survival rate of when co-cultured with K25. These results to some extent explained the cooperation of dSPI and dPEP with K25 to produce acid thereby weaken the growth of .
大豆分离蛋白及其水解产物被认为是植物蛋白中最优质的蛋白质之一，目前的研究表明它们具有潜在的益生菌功能。本研究的目的是研究消化后的大豆分离蛋白（dSPI）和消化后的大豆肽（dPEP）单独对K25的影响，以及与K25共培养时对两种细菌的影响。结果表明，dSPI和dPEP促进了K25的生长和代谢，且dSPI效果更好。此外，dSPI和dPEP与K25共培养时仍能促进K25的生长和有机酸分泌，且dPEP处理比dSPI更有效。此外，dSPI和dPEP与K25共培养时降低了K25的存活率。这些结果在一定程度上解释了dSPI和dPEP与K25协同产酸从而削弱K25生长的现象。
