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选用嗜水气单胞菌、副溶血弧菌、荧光假单胞菌3种常见水产病原菌,用于测定柠檬酸的抑菌效果及最小抑菌浓度,并研究了柠檬酸抑菌作用的持续性。3种菌均为革兰氏阴性菌。试验结果表明,柠檬酸对3种菌都有不同程度的抑菌作用,并得到最小抑菌浓度,依次是:0.0011g/mL,0.0008g/mL,0.00125g/mL;在最小浓度下抑菌作用可达6d之久,柠檬酸抑菌效果有较好的持续性。
Three common aquatic pathogenic bacteria, Aeromonas hydrophila, Vibrio parahaemolyticus and Pseudomonas fluorescens, were selected to determine the antibacterial effect and the minimum inhibitory concentration of citric acid. The antibacterial activity of citric acid was also studied. . Three kinds of bacteria are Gram-negative bacteria. The results showed that citric acid had different degrees of antibacterial activity against the three kinds of bacteria and the minimum inhibitory concentration was 0.0011g / mL, 0.0008g / mL and 0.00125g / mL, respectively. The role of up to 6d for a long time, citric acid bacteriostatic effect has a better continuity.