南五味子根茎叶乙醇提取物的抗菌及抗氧化活性

Antibacterial and antioxidation activities of root,stem and leaf ethanol extract of Kadsura longipedunculata

以南五味子根、茎、叶的乙醇提取物进行抗菌及抗氧化试验.结果表明:南五味子老根、幼根、老茎、幼茎、叶乙醇提取物的提取率分别为13.12%,14.43%,11.22%,10.15%,17.44%.南五味子不同部位的乙醇提取物均呈现出不同程度的抗菌活性,其中,老根提取物对枯草芽孢杆菌的抑制效果最好,抑菌圈直径达到16.47mm.叶提取物对大肠杆菌的抑制效果最好,抑菌圈直径为16.12 mm.南五味子不同部位乙醇提取物的抗氧化活性中,老根为4 604.75 U·mL^(-1),幼根为4 308.63 U·mL^(-1),叶为2 233.70 U·mL^(-1),老茎为4 088.58 U·mL^(-1),幼茎为3 154.19 U·mL^(-1).由此可见,根部是贮存抗菌抗氧化活性物质的主要器官,南五味子具有较强的抗菌抗氧化活性,可作为药用植物资源进行开发和利用.

The antimicrobial and antioxidant activities of the ethanol extracts from root,stem,and leaf of Kadsura longipedunculata were tested.The results showed that the extraction yield of old root,young root,old stem,young stem and leaf were 13.12%,14.43%,11.22%,10.15%,7.44%,respectively.They showed different antibacterial activities.The ethanol extract of the old root showed the best inhibition effect against Bacillus subtilis with the inhibition zones of 16.47 mm.The antibacterial activity of the ethanol extract of leaf a gainst Escheria coli was the highest with an inhibition zone of 16.12 mm.The antioxidant activity of the ethanol extract o f the old root,young root,leaf,old stem,and young stem were 4 604.75,4 308.63,2 233.70,4 088.58 and 3 154.19U·m L-1,respectively.Therefore,the root was the main organ of antibacterial and antioxidant materials of Kadsura longipedunculata,and it had strong antibacterial and antioxidant activities,indicating that it might be used as a medicinal plant resources.