探讨人工培养的蛹虫草C19的生物学活性，采用化学比色法分别测定蛹虫草提取物的抗氧化活性。实验结果表明，蛹虫草C19提取液具有很强还原能力。提取液为0.12%时，对DPPH·的清除率达到(49.74±1.83)%，对MDA生成的抑制率为（88.67±2.59）%；提取液为0.6%时，对O2-·的清除率为(83.22±3.07)%；提取液为1%时，对·OH的清除率为(69.59±2.24)%。表明人工培养的蛹虫草子C19可作为一种潜在的天然抗氧化剂。

The biological activity of fruiting bodies of cultured Cordyceps militaris C19 was examined and the antioxidant activity of the extract from Cordyceps militaris was investigated by using the chemical colorimetry. The experimental results showed that the extract from C19 fruiting bodies of cultured Cordyceps militaris had potent reducing power. When the concentration of the extract was 0.12%, its scavenging effect on DPPH· reached (49.74±1.83)%, and its inhibitory effect on the generation of MDA was (88.67±2.59)%. When the concentration of the extract was 0.6%, its scavenging effect on O2-· reached (83.22±3.07)%. And its scavenging effect on ·OH reached (69.59±2.24)% with its concentration being of 1%. It was indicated that the C19 fruiting bodies of cultured Cordyceps militaris was a potential natural antioxidant.

华南农业大学横向课题（4600-H08046）；华南农业大学生命科学学院“博士奥”科技创新项目