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茶叶科学 ›› 2014, Vol. 34 ›› Issue (5): 435-441.doi: 10.13305/j.cnki.jts.2014.05.003

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普洱茶发酵过程中外源接种黄曲霉产毒研究

李亚莉1, 康冠宏1,2, 杨丽源3, 祝红昆4, 李治滢3, 周红杰1,*   

  1. 1. 云南农业大学普洱茶学院,云南 昆明 650201;
    2. 云南下关沱茶集团股份有限公司,云南 大理 676700;
    3. 云南大学微生物研究所,云南 昆明 650091;
    4. 云南省产品质量监督检验研究院,云南 昆明 650223
  • 收稿日期:2014-02-12 修回日期:2014-03-05 发布日期:2019-09-03
  • 通讯作者: *ynzhj2003@aliyun.com
  • 作者简介:李亚莉(1976— ),云南临沧,副教授,硕士生导师,主要从事普洱茶加工和综合利用研究。
  • 基金资助:
    国家自然科学基金项目(31260197)、国家科技支撑计划项目课题(2007BAD58B02)、云南省科技厅富民强县计划项目(2011EB117)

Research on Aspergillus flavus Toxin-producing in Pu'er Tea Fermentation

LI Yali1, KANG Guanhong1,2, YANG Liyuan3, ZHU Hongkun4, LI Zhiying3, ZHOU Hongjie1,*   

  1. 1. College of Pu'er tea, Yunnan Agriculture University , Kunming 650201, China;
    2. Yunnan Xiaguan Tuocha Co., Ltd., Dali 676700, China;
    3. Institute of Microbiology, Yunnan University, Kunming 650091, China;
    4. Yunnan Institute of Product Quality Supervision and Inspection, Kunming 650223, China
  • Received:2014-02-12 Revised:2014-03-05 Published:2019-09-03

摘要: 以云南大叶种晒青茶为原料,接种产毒黄曲霉进行模拟普洱茶发酵试验,并在发酵结束时通过LC-MS/MS法对茶样进行黄曲霉毒素检测,研究普洱茶发酵过程中黄曲霉的生长及产毒情况。结果表明,在普洱茶发酵过程中,接种的黄曲霉能在茶叶中生长繁殖,初期生长较快,但随发酵时间的延长,黄曲霉在茶叶中的生长明显受到抑制,其数量逐渐下降。发酵终止时,未在茶样中检测出黄曲霉毒素。

关键词: 普洱茶, 黄曲霉, 黄曲霉毒素, LC-MS/MS

Abstract: For the purpose of studying the Aspergillus flavus growth and toxin production in Pu′er tea fermentation, the Yunnan large-leaves solar-drying green tea was used as the raw material to fermentate by inoculating toxigenic Aspergillus flavus fungus in Pu′er tea. Aflatoxin was tested by LC-MS/MS method at the end of tea samples fermentation. The results showed that during the tea fermentation, Aspergillus flavus growth was observed in the initial fermentation. However, with the extension of Pu′er tea fermentation time, Aspergillus flavus growth were inhibited in the late fermentation, the number decreased gradually, while the end of fermentation, the aflatoxin was not detected in tea samples.

Key words: Pu'er tea, Aspergillus flavus, aflatoxins, LC-MS/MS

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