毒三素链霉菌SIPI-2012406抑菌活性产物的分离纯化和结构鉴定

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利用大孔吸附、阳离子交换和葡聚糖凝胶过滤等色谱方法从毒三素链霉菌SIPI-2012406发酵液中分离纯化得到3个活性化合物,纯度均达99.5%.抗菌活性测定结果显示,其对枯草芽孢杆菌和金黄色葡萄球菌的MIC均不超过0.05 μg/ml.其中两个化合物的紫外光谱、红外光谱、高分辨质谱和核磁共振谱等研究表明,它们为链丝菌素C和链丝菌素B.该结果说明毒三素链霉菌能够产生链丝菌素类化合物.
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