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Research on the In Vitro Bacteriostatic Effect of Quassiawood Alkaloid on Escherichia coli
Author(s): HE Ying, LIU Wei, CHEN Zhongwei, ZHAO Wu, ZHONG Zezuo, WEI Yingyi
Pages: 2777-
2778
Year: 2008
Issue:
7
Journal: JOURNAL OF ANHUI AGRICULTURAL SCIENCES
Keyword: 苦木; 脂溶性生物碱; 水溶性生物碱;
Abstract: [目的]测定苦木生物碱对大肠杆菌C249、WM和YL株的体外抑菌效果.[方法]采用平板培养法制备菌液,用微量稀释法测定最小抑菌浓度,用杯碟法进行体外抑菌试验.[结果]脂溶性苦木生物碱在体外对大肠杆菌有较强的抑制作用,对大肠杆菌C249、WM、YL株的抑菌圈直径分别为19.07±0.23、20.77±0.59、23.00±0.21 mm,属高度敏感,最小抑菌浓度分别为3.2、1,6和1.6 mg/ml.水溶性苦木生物碱对上述菌株几乎无抑菌作用,其抑菌圈直径均小于13 mm,属低度敏感.[结论]脂溶性苦木生物碱对大肠杆菌标准强毒株的体外抑菌效果优于硫酸黄连素,与痢菌净和氧氟沙星相当,比氟苯尼考略差,但对在广西分离到的强毒株WM和YL株的体外抑菌效果也明显优于硫酸黄连素、痢菌净和氧氟沙星,与氟苯尼考相当.
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