食品科学 ›› 2009, Vol. 30 ›› Issue (24 ): 299-302.doi: 10.7506/spkx1002-6630-200924065

• 分析检测 • 上一篇    下一篇

大肠菌群快速检测纸片的研制

张莉莉1,2,赖卫华1,*,涂祖新2,曲 锋1   

  1. 1.南昌大学 食品科学与技术国家重点实验室 2.江西省科学院微生物研究所
  • 收稿日期:2009-08-15 出版日期:2009-12-15 发布日期:2010-12-29
  • 通讯作者: 赖卫华1,*, E-mail:talktolaiwh@163.com
  • 基金资助:

    教育部“长江学者和创新团队发展计划”项目(IRT0540)

Rapid Test Strip for Coliform Bacteria

ZHANG Li-li1,2,LAI Wei-hua1,*,TU Zu-xin2,QU Feng1   

  1. 1. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China;
    2. Microbiology Institute, Jiangxi Academy of Sciences, Nanchang 330029, China
  • Received:2009-08-15 Online:2009-12-15 Published:2010-12-29
  • Contact: LAI Wei-hua1,*, E-mail:talktolaiwh@163.com

摘要:

通过对乳糖发酵管培养基配方进行优化,调整乳糖发酵管培养基的pH 值和溴甲酚紫的用量,制备特异性强、灵敏度高的大肠菌群快速检测纸片。结果表明:在培养基中添加牛肉膏(用量3mg/ml),培养基pH 值调为6.62 ± 0.2,再添加溴甲酚紫(用量0.064mg/ml),自制纸片的灵敏度得到了提高。可以用于食品安全中大肠菌群的监督检验。

关键词: 大肠菌群, 快速检测纸片, 溴甲酚紫

Abstract:

In this study, rapid test strips with strong specificity and high sensitivity for detecting coliform bacteria were developed through optimizing medium, pH, and addition amount of bromocresol purple in medium. The sensitivity of homemade test strips exhibited a significant increase by adding beef extract at the dose of 3 mg/ml into culture medium, adjusting pH to 6.62 ± 0.2, and adding bromocresol purple at the dose of 0.064 mg/ml. This kind of strip can be used in the food safety inspection to detect coliform bacteria.

Key words: coliform bacteria, rapid test strip, bromocresol purple

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