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大蒜及生姜提取液抑菌性能的对照研究
引用本文:郑俏然,姚成强,郑丽霞.大蒜及生姜提取液抑菌性能的对照研究[J].农产品加工.学刊,2011(2):23-25,35.
作者姓名:郑俏然  姚成强  郑丽霞
作者单位:长江师范学院生命科学与技术学院,重庆,408000
摘    要:通过体积分数为95%的无水乙醇振荡提取,以制备大蒜及生姜提取液,用牛津杯法研究其对不同菌种的抑制作用,以及不同浓度、pH值、热处理等对大蒜及生姜提取液抑菌性能的影响。研究表明,大蒜提取液、生姜提取液对革兰氏阴性菌和革兰氏阳性菌均有抑菌作用,其抑菌活性均随体积分数升高而增强,有效抑菌体积分数为20%以上;弱酸环境下的大蒜、生姜提取液比在中性和弱碱性条件下的抑菌活性强;大蒜提取液的热稳定性较弱,而生姜提取液具有良好的热稳定性。

关 键 词:大蒜  生姜  提取液  抑菌性能

Antibacterial Activities of the Extraction of Garlic and Ginger
Zheng Qiaoran,Yao Chengqiang,Zheng Lixia.Antibacterial Activities of the Extraction of Garlic and Ginger[J].Nongchanpin Jlagong.Xuekan,2011(2):23-25,35.
Authors:Zheng Qiaoran  Yao Chengqiang  Zheng Lixia
Institution:(College of Life Science,Yangtze Normal University,Chongqing 408000,China)
Abstract:Ethanol extraction is adopted to extract the garlic and ginger,and the antibacterial activities toward various bacteria is determined and the influence of conditions are studied,including concentration,pH,thermal treatment on antibacterial effects of the extraction of garlic and ginger.The results are as follow:both of the extraction of garlic and ginger can inhibit to bacterial: Escherichia coli,Staphylococcus aureus,and they have more prominent antibacterial activity at low pH,the ginger extraction exhibits a better thermal stability than garlic.
Keywords:garlic  ginger  extraction  antibacterial activities
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