五谷虫，中药名。为丽蝇科昆虫大头金蝇或其它近缘昆虫的干燥幼虫。7～9月间收集，装入布袋，在流水中反复漂洗，使虫体内容物排除尽净，然后晒干。
目的探讨中药五谷虫抗菌物质的提纯方法和抗菌活性。
Objective Study the purification method and antibacterial activity of Chinese herb (the larvae of Lucilia sericata).
结论五谷虫的抗菌成分为某种具有抗菌活性的小分子量蛋白肽类物质。
Conclusion The secretion of the larvae which has effective antibacterial function is some peptide of small molecule weight.
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