| 紫背天葵提取物的抑菌活性研究 |
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| 引用本文： | 罗开梅,黄轶群,张国广,赖金梅,黄凌雪. 紫背天葵提取物的抑菌活性研究[J]. 漳州师院学报, 2011, 0(4): 83-86 |
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| 作者姓名： | 罗开梅 黄轶群 张国广 赖金梅 黄凌雪 |
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| 作者单位： | [1]漳州师范学院生物科学与技术系,福建漳州363000 [2]福建医科大学附属漳州市医院血液科,福建漳州363000 |
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| 基金项目： | 卫生部科学研究基金-福建省卫生教育联合攻关计划资助项目（WKJ2008-2-55） |
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| 摘 要： | 研究紫背天葵提取物对食品中常见腐败菌的抑菌效果．以大肠杆菌、金黄色葡萄球菌、枯草芽孢杆菌、啤酒酵母、黑曲霉作为供试菌种，采用滤纸片扩散法和二倍稀释法进行抑菌试验．结果表明：紫背天葵提取物对细菌抑制作用明显，其次是酵母菌，对霉菌无抑制作用；水提取物抑菌效果优于80％乙醇提取物；在pH5—9范围内都具有抑菌活性，在明显碱性环境抑菌作用最强；有良好的热稳定性．
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| 关 键 词： | 紫背天葵 提取物 抑菌活性 |
Study on Antimicrobial Effect of the Extracts from Gynura |
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| LUO Kai-mei,HUANG Yi-qun,ZHANG Guo-guang,LAI Jin-mei,HUANG Ling-xue. Study on Antimicrobial Effect of the Extracts from Gynura[J]. Journal of ZhangZhou Teachers College(Philosophy & Social Sciences), 2011, 0(4): 83-86 |
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| Authors: | LUO Kai-mei HUANG Yi-qun ZHANG Guo-guang LAI Jin-mei HUANG Ling-xue |
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| Affiliation: | 1. Department of Biological Science and Technology, Zhangzhou Normal University, Zhangzhou, Fujian 363000, China; 2. Department of Hematology, Zhangzhou Municipal Hospital of Fujian Medical University, Zhangzhou, Fujian 363000, China) |
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| Abstract: | The inhibition of microorganisms by the extracts from Gynura was studied. Five microbial strains including Escherichia coil, Staphylococcus aureus, Bacillus subtilis, Saccharomyces cerevisiae, Aspergillus niger were chosen to investigate the antimicrobial activity by disk diffusion method and double dilution method. The results showed that the extracts had better effect on bacterium than yeast, and no effect on mould. It was also proved that the extracts had antibacterial effect in the pH range of 5 to 9, but that it can be more effective in alkaline condition. Furthermore, the extracts had good thermal stability. |
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| Keywords: | Gynura extracts antimicrobial activities |
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