The active substance was extracted from various organism of Vitex negundo Linn. by use of ether, chloroform and ethanol, then it was used for bacteriostasis experiment on some bacteria.

• 摘要利用乙醚、无水乙醇、氯仿等提取黄荆不同器官的活性物质，并用提取物对几种细菌进行抑菌试验。