【摘要】 芽孢乳酸杆菌 TQ33在乳酸发酵过程中能产生抑菌物质,这种抑菌物质的产生与培养基的组成有密切关系。同时通过对该抑菌物的分离和提取,以及其理化性质和抑菌谱的测定,发现这种抑菌物质对酸、热和蛋白酶稳定,对碱敏感,能抑制常见的肠道病源菌。更多还原

【Abstract】 Bacillus coagulans TQ33 secretes antibacterial substance during lactic acid fermentation pro- cess,and production of the substance has close relation with different medium ingredient.Here the isolation and extraction,physical and chemical characteristics,antibacterial spectrum of the antibacterial substance have been studied.The results suggest that the substance is stable against acid,heat and proteinase,sensi- tive to alkali,and inhibits common intestinal pathogenic bacteria.更多还原