林产化学与工业2012，Vol.32Issue(2)：163-166,4.
桑叶总黄酮的提取及其抑菌活性研究
Extraction of Total Flavonoids of Mulberry Leaves and Their Antibacterial Activities
迟晓喆 1曹光群1
作者信息
- 1. 江南大学 化学与材料工程学院,江苏 无锡214122
- 折叠
摘要
Abstract
The extraction process of total flavonoids from mulberry leaves was optimized based on antibacterial activity. The curde extract obtained at the optimal condition was fractionated by different solvents and then qualitatively analyzed. The contents of total flavonoids of fractionated extracts were determined. The diameter of antibacterial circle and minimum inhibitory concentration of extracts on Escherichia coli ( Ec. ) and Staphyloccocus aureus Rosenbach (Sa. ) were investigated. The stability of the better fractionated extract was tested. The results showed that the optimal extraction condition for curde extract is 70 ℃ , 70 % ethanol concentration, 4 h and solid-liquid 1 : 30(g: mL). The fractionated extract being better antibacterial effect was ethyl acetate extract. Furthermore, ethyl acetate extract had better stabilities on temperature and UV irradiation.关键词
抑菌活性/桑叶/黄酮类化合物/最低抑菌浓度Key words
antibacterial activity/mulberry leaves/flavonoids/MIC分类
化学化工引用本文复制引用
迟晓喆,曹光群..桑叶总黄酮的提取及其抑菌活性研究[J].林产化学与工业,2012,32(2):163-166,4.
