食品科学

• 成分分析 • 上一篇    下一篇

PCR-DGGE技术检测羊羔美酒大曲中细菌多样性

李 艳1,2,董振玲1,3,李 佳1,牟德华1,*   

  1. 1.河北科技大学生物科学与工程学院,河北 石家庄 050018;2.河北省发酵工程技术研究中心,河北 石家庄 050018;
    3.河北一然生物科技有限公司,河北 石家庄 050800
  • 出版日期:2015-06-25 发布日期:2015-06-12
  • 通讯作者: 牟德华
  • 基金资助:

    河北省石家庄市科技支撑计划项目(101171271A;10117901A);河北省自然科学基金项目(C2011208028)

Bacterial Diversity of Daqu for Yanggaomeijiu as Determined by PCR-Mediated DGGE

LI Yan1,2, DONG Zhenling1,3, LI Jia1, MOU Dehua1,*   

  1. 1. College of Bioscience and Bioengineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;
    2. R&D Center for Fermentation Engineering of Hebei Province, Shijiazhuang 050018, China;
    3. Hebei Inatural Biological Technology Co. Ltd., Shijiazhuang 050800, China
  • Online:2015-06-25 Published:2015-06-12
  • Contact: MOU Dehua

摘要:

目的:使用聚合酶链式反应-变性梯度凝胶电泳(polymerase chain reaction-denatured gradientgelelectrophoresis,PCR-DGGE)技术检测羊羔美酒大曲中的细菌,探寻酒曲中细菌菌群的多样性组成,研究羊羔美酒的风味特征。方法:对羊羔美酒大曲进行样品处理、提取总DNA、PCR扩增、DGGE条带的切胶与测序分析。结果:利用PCR-DGGE技术检测到羊羔美酒大曲中包含魏斯氏菌属(Weissella)、乳杆菌属(Lactobacillus)、片球菌(Pediococcus)、芽孢乳杆菌(Sporolactobacillus)、葡萄球菌(Staphylococcus)、高温放线菌属(Thermoactinomyces)和4 个不可培养的细菌种类。结论:羊羔美酒大曲中细菌菌群多样性丰富,其中乳酸菌菌群是最大的细菌群系。

关键词: 羊羔美酒大曲, 细菌, 聚合酶链式反应-变性梯度凝胶电泳

Abstract:

Purpose: To detect and analyze the bacterial diversity of Yanggaomeijiu Daqu (traditional Chinese fermentation
starter) by polymerase chain reaction-denatured gradient gelelectrophoresis (PCR-DGGE) for further understanding of the
flavor characteristics of Yanggaomeijiu. Methods: Samples of Yanggaomeijiu were processed and then extracted to obtain
total DNA for PCR amplification and the amplified DNA bands were excised from the gels for sequence analysis by DGGE.
Results: By using PCR-DGGE, the genus of Weissella, Lactobacillus, Pediococcus, Sporolactobacillus, Staphylococcus,
Thermoactinomyces and 4 unculturable bacterial strains were identified in Yanggaomeijiu Daqu. Conclusions: This work
shows that the bacterial diversity is abundant in Yanggaomeijiu Daqu among which, lactic acid bacteria constituted the
largest group.

Key words: Yanggaomeijiu Daqu, bacteria, PCR-DGGE

中图分类号: