煤绒菌原质团和菌核甲醇提取物抗氧化活性的研究

Study on Antioxidant Activities of Methanol Extracts from Plasmodium and Sclerotium of Fuligo septica

为探索黏菌的抗氧化活性,以总还原力、DPPH自由基清除率及O2自由基清除率为指标,首次对煤绒菌原质团和菌核甲醇提取物进行抗氧化活性研究。结果表明:煤绒菌原质团和菌核甲醇提取物均有较好的抗氧化活性,当质量浓度为0.8 mg/mL时,二者对O2自由基的清除能力最强,清除率分别为70.39%和86.83%;当质量浓度为0.4 mg/mL时,二者对DPPH自由基的清除能力最强,清除率分别为57.22%和62.91%,通过比较IC50值,菌核粗提物的抗氧化能力略优于原质团。

To explore the antioxidant activities of myxomycetes,we chosed the total reducing capacity and scavenging abilities of DPPH and O2^·-as indexes to stuty antioxidation of Fuligo septica on plasmodium and sclerotium for the first time. The results showed that methanol extracts from plasmodium and sclerotium of Feligo septica all had good antioxidant activities. When the concentration was0. 8mg /mL,their scavenging rates to O2^·-were 70. 39% and 86. 83%,respectively. In addition,when concentration was 0. 4 mg /mL,their scavenging rates to DPPH were 57. 22% and 62. 91%,respectively. The antioxidant capacity of methanol extracts from sclerotium was slightly better than plasmodium using the values of IC50.