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水杨酸的抑酶与抑菌作用
Authors
张丽娟
张春乐
+4 more
林敏
郑国兴
陈清西
黄浩
Publication date
30 December 2006
Publisher
Abstract
以水杨酸为效应物,研究其酶学效应和微生物效应.实验结果表明:水杨酸对马铃薯多酚氧化酶有明显的抑制作用,半抑制率(IC50)为2.05 mmol/L,抑制作用表现为非竞争性的可逆过程,其抑制常数为2.00 mmol/L.水杨酸对大肠杆菌、金黄色葡萄球菌、枯草芽孢杆菌3种细菌和白色假丝酵母、黑曲霉两种真菌均有明显的抑制作用,其最小抑菌浓度(M IC)分别为0.75、0.5、0.5、0.25和0.75 mg/mL,最小杀菌浓度(MBC)分别为0.75、1.0、0.5、0.25和0.75 mg/mL.本研究为水杨酸在果蔬保鲜中的应用提供实验理论依据
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Last time updated on 16/06/2016