食品科学 ›› 2012, Vol. 33 ›› Issue (13): 230-234.doi: 10.7506/spkx1002-6630-201213049

• 生物工程 • 上一篇    下一篇

一株蜂房哈夫尼亚菌的鉴定和产胺能力分析

王淼,丁文,汪先丁,朱亮,孙群   

  1. 四川大学生命科学学院
  • 收稿日期:2020-04-01 修回日期:2020-04-01 出版日期:2012-07-15 发布日期:2012-07-27

Identification of Hafnia alvei and Its Ability to Produce Biogenic Amine

WANGMiao,DINGWen,WANGXian-ding,ZHULiang,SUNQun   

  1. (College of Life Sciences, Sichuan University, Chengdu 610064, China)
  • Received:2020-04-01 Revised:2020-04-01 Online:2012-07-15 Published:2012-07-27

摘要: 考察本实验室从冷藏鸡肉中分离出的一株产生物胺细菌C10的产胺能力,评估其对冷藏鸡肉的食品安全的影响,根据生理生化特性及16S rRNA基因序列对其进行鉴定,并用薄层层析法(TLC)和高效液相色谱法(HPLC)测定其在4℃脱羧酶液体培养基中产生物胺能力。结1果表明,菌株C10为蜂房哈夫尼亚菌(Hafnia alvei),TLC和HPLC检测结果一致,说明C10能产生尸胺(12.28mg/L)、腐胺(5.23mg/L)、组胺(8.35mg/L),因此其会对冷藏鸡肉的食品安全造成潜在风险。同时,TLC与HPLC检测法比较表明,TLC可作为一种经济、快捷、可靠的生物胺筛查方法。

关键词: 生物胺, 16S rRNA, Biolog分析, 薄层层析法(TLC), 高效液相色谱法(HPLC)

Abstract: A biogenic amine-producing strain named as C10 was isolated from chilled chicken in our laboratory. Its effect on the safety of chilled chicken was evaluated during storage. The strain was identified according to its physiological and biochemical characteristics and 16 rDNA sequence. At the same time, its ability to produce biogenic amine during culture in decarboxylase medium at 4 ℃ for 3 days was analyzed by thin layer chromatography (TLC) and high performance liquid chromatography (HPLC). The strain C10 was identified as Hafnia alvei. Consistent results were obtained using TLC and HPLC, which showed that C10 could produce cadaverine, putrescine and histamine at levels of 12.28, 5.23 mg/L and 8.35 mg/L, respectively. In conclusion, Hafnia alvei is a potential hazard to the safety of chicken during refrigeration. In addition, TLC is proved to be a rapid, economical and reliable method for detecting BAs in meats.

Key words: biogenic amines, 16S rRNA, Biolog analysis, thin layer chromatography(TLC), high performance liquid

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