天然产物研究与开发 ›› 2015, Vol. 27 ›› Issue (1): 35-40.doi: 10.16333/j.1001-6880.2015.01.007

• 研究论文 • 上一篇    下一篇

鼠尾草酸的抗氧化活性及抑菌活性研究

夏田娟1,毕良武1,2*,赵振东1,2,邢雅丽1,程贤1   

  1. 1 中国林业科学研究院林产化学工业研究所 生物质化学利用国家工程实验室;国家林业局 林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室,南京 210042;2 中国林业科学研究院林业新技术研究所,北京100091
  • 出版日期:2015-01-31 发布日期:2015-02-12

Study on Antioxidant and Antibacterial Activities of Carnosic Acid

XIA Tian-juan1, BI Liang-wu1,2*, ZHAO Zhen-dong1,2, XING Ya-li1, CHENG Xian1   

  1. 1 Institute of Chemical Industry of Forest Products,CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and  Open Lab.on Forest Chemical Engineering,SFA;Key Lab.of Biomass Energy and Material,Jiangsu Province,Nanjing 210042,China; 2 Institute of New Technology of Forestry,CAF,Beijing 100091,China
  • Online:2015-01-31 Published:2015-02-12

摘要: 通过自由基清除能力、还原力和平板二倍稀释法实验,评价了鼠尾草酸的抗氧化活性、抑菌活性。结果显示:相同浓度的鼠尾草酸抗氧化活性明显高于合成抗氧化剂PG、BHT、BHA、VE,略低于THBQ,其清除DPPH的IC50值为2.53 μg/mL,清除ABTS的IC50值为51.58 μg/mL。抑菌实验表明:鼠尾草酸具有广谱抗菌性,特别是大肠埃希氏杆菌、绿脓假单胞菌,其最低抑菌浓度分别为4、<2 μg/mL,表现出了比新洁尔灭、氨苄青霉素钠、红霉素更好的抑菌活性;对于肺炎克雷伯氏菌,则表现出了与红霉素同样的抑菌效果,优于新洁尔灭和氨苄青霉素钠。

关键词: 鼠尾草酸, 抗氧化活性, 抑菌活性

Abstract: The antioxidant and antibacterial activities of carnosic acid were studied by radical scavenging effect,reducing ability and tablet dilution methods.The results showed that,the antioxidant activity of carnosic acid was significantly higher than that of synthetic antioxidants PG,BHT,BHA,VE under the same concentration,while slightly lower than THBQ.At the same time,IC50s of scavenging DPPH and ABTS radical of carnosic acid were 2.53 μg/mL and 51.58 μg/mL,respectively.Antibacterial tests indicated that carnosic acid had broad-spectrum of antibacterial activity.Especially for Escherichia coli and Pseudomonas aeruginosa, the MICs of carnosic acid were 4 and <2 μg/mL,better than that of bromogeramine,sodium ampicillin and erythromycin.Moreover, for Klebsiella pneumonia, carnosic acid showed the same inhibitory effect with erythromycin,better than bromogeramine and sodium ampicillin.

Key words: carnosic acid, antioxidant activity, antibacterial activity

中图分类号: 

TQ351.0