营养因素对黄曲霉毒素B1抑制大肠杆菌和伤寒沙门氏菌生长的影响。
Effect of nutritional factors on aflatoxin B1 inhibition of growth in Escherichia coli and Salmonella typhi.
作者信息
Tiwari R P, Singh G, Jain N K, Singh J, Vadehra D V
机构信息
Department of Microbiology, Panjab University, Chandigarh, India.
出版信息
Folia Microbiol (Praha). 1988;33(1):15-20. doi: 10.1007/BF02928008.
The extent of growth inhibition by aflatoxin B1 in S. typhi and E. coli was greater in the presence of sodium citrate or sodium phosphate, palmitic and stearic acid than aflatoxin B1 alone. The addition of amino acids (glycine or glutamic acid) stimulated growth in E. coli and inhibited in S. typhi in the presence of aflatoxin B1. Other nutrients, such as yeast extract, lactose, or salt addition did not alter aflatoxin B1 antibacterial activity but decreased growth was observed in the presence of peptone.
在伤寒沙门氏菌和大肠杆菌中，黄曲霉毒素B1在柠檬酸钠或磷酸钠、棕榈酸和硬脂酸存在时的生长抑制程度比单独使用黄曲霉毒素B1时更大。在黄曲霉毒素B1存在的情况下，添加氨基酸（甘氨酸或谷氨酸）会刺激大肠杆菌的生长，并抑制伤寒沙门氏菌的生长。其他营养物质，如酵母提取物、乳糖或添加盐，不会改变黄曲霉毒素B1的抗菌活性，但在蛋白胨存在时观察到生长减少。
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