Chin J Schisto Control ›› 2017, Vol. 29 ›› Issue (1): 72-73.

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Thyreophagus entomophagus breeding in beer yeast powder

CHAI Qiang| TAO Ning| LI Chao-pin*   

  1. Department of Medical Parasitology| Wannan Medical College| Wuhu 241002| China
  • Online:2017-02-23 Published:2017-02-24

啤酒酵母粉中发现食虫狭螨

柴强|陶宁|李朝品*   

  1. 皖南医学院寄生虫学教研室(芜湖 241002)
  • 作者简介:柴强|男|硕士研究生。研究方向:病原生物学与流行病学
  • 基金资助:
    国家自然科学基金(30872367、81270091); 安徽省教育厅自然科学研究项目(2006kj101A); 安徽省自然科学基金(070413088)

Abstract: Objective To separate and identify Thyreophagus entomophagus from beer yeast powder and observe its morphological characteristics. Methods The beer yeast powder was collected from the scum after fermentation of the beer material, the mites in it were separated and made into slide specimens, and then they were identified and observed for the morphological characteristics under an optical microscope. Results The mites separated from the beer yeast powder were identified as female Thyreophagus entomophagus. Under the optical microscope, the bodies of the mites were long and narrow, which showed an oval shape, the gnathosoma was wide, the epidermis was colorless but lustrous, the external vertical seta, internal scapular seta, inner humerals, anterior lateral seta, and dorsal body setae were all absent, the bristles on the back of the body were relatively long, and all the feet were thick and strong. Conclusion Thyreophagus entomophagus can breed in the beer yeast powder, and therefore, the powder should be stored properly to avoid the contamination caused by the mites.

Key words: Thyreophagus entomophagus; Beer yeast powder; Separation; Identification; Morphological characteristic

摘要: 目的 从啤酒酵母粉中分离鉴定食虫狭螨,并对其形态进行观察。方法 从啤酒料发酵后的渣粕中采集某啤酒厂酵母粉,分离其中的螨类并制作标本,然后对分离的螨类进行螨种鉴定,并于镜下观察其形态特征。结果 从啤酒酵母粉中分离的螨类经鉴定为食虫狭螨雌螨。在光学显微镜下,该螨躯体窄长,呈长椭圆形,颚体宽大,表皮无色,有光泽;顶外毛、胛内毛、肩内毛、前侧毛和背毛均缺如,躯体背面刚毛相对较长,各足粗壮。结论 啤酒酵母粉中有食虫狭螨孳生,应妥善保存,以免被该螨污染。

关键词: 食虫狭螨; 啤酒酵母粉; 分离; 鉴定; 形态特征

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