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| 桑叶提取物抑菌活性及抑菌稳定性研究 | |
| 引用本文： | 陈佳佳,刘凡,廖森泰,孙远明,邹宇晓,吴娱明.桑叶提取物抑菌活性及抑菌稳定性研究[J].食品工业科技,2012,33(9):88-91. |
| 作者姓名： | 陈佳佳 刘凡 廖森泰 孙远明 邹宇晓 吴娱明 |
| 作者单位： | 1. 广东省农科院蚕业与农产品加工研究所,广东广州510610／华南农业大学食品学院,广东广州510642 2. 广东省农科院蚕业与农产品加工研究所,广东广州,510610 3. 华南农业大学食品学院,广东广州,510642 |
| 基金项目： | 广东省自然科学基金团队项目(粤科基字[2009]2号);广东省社发攻关项目(2009A030100005);广东省农业攻关项目(2009B020305002);广东省科技成果转化启动项目(2010B060600005);国家现代农业产业技术体系建设专项资金 |
| 摘 要： | 分别用沸水、70%乙醇、无水乙醇、乙酸乙酯、石油醚对桑叶进行提取,采用琼脂打孔法比较不同溶剂提取物对5种常见食源性污染菌的抑制作用;并探讨热处理、紫外线、介质pH、糖和盐对桑叶的70%乙醇提取物抑菌活性的影响。结果表明:5种提取物均对测试菌株具有较好的抑菌活性,其中以70%乙醇提取物抑菌活性最佳。热处理及紫外线照射对70%乙醇提取物的抑菌活性没有明显影响;随着介质pH的增大,提取物抑菌活性呈下降趋势;随着蔗糖和氯化钠浓度的增大,提取物抑菌活性有所增强。 |
| 关 键 词： | 桑叶 抑菌 稳定性 |
Study on antibacterial activity and stability of extracts frommulberry(Morus alba L.) leaves |
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| CHEN Jia-jia,LIU Fan,LIAO Sen-tai,SUN Yuan-ming,ZOU Yu-xiao,WU Yu-ming.Study on antibacterial activity and stability of extracts frommulberry(Morus alba L.) leaves[J].Science and Technology of Food Industry,2012,33(9):88-91. | |
| Authors: | CHEN Jia-jia LIU Fan LIAO Sen-tai SUN Yuan-ming ZOU Yu-xiao WU Yu-ming |
| Affiliation: | 1(1.Sericulture and Farm Produce Processing Research Institute,Guangdong Academy of Agricultural Sciences,Guangzhou 510610,China;2.College of Food Science,South China Agricultural University,Guangzhou 510642,China) |
| Abstract: | Inhibitory effects of 5 extracts(water,70% ethanol,ethanol,ethyl acetate and petroleum ether)from mulberry(Morus alba L.)leaves against 5 common foodborne pathogenic bacteria were tested by agar diffusion method.Meanwhile,thermal treatment,ultraviolet,pH,saccharose and sodium chloride affecting the antibacterial activity of the 70% ethanol extract were also investigated.The results indicated that 70% ethanol extract had the best antibacterial activity in the 5 extracts.The antibacterial activity of 70% ethanol extract was very stable to temperature and ultraviolet,decreased with increasing pH value,and enhanced at higher concentrations of saccharose and sodium chloride. |
| Keywords: | mulberry leaves antibacterial stability |
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