Development of a Highly Efficient Cockroach Trap Device

Liquor-Making Science and Technology - - News -

QIN Xing, LU Hongmei and CHEN Li (Guizhou Provincial Key Lab of Fermentation Engineering and Biological Pharmacy, Guiyang, Guizhou 550003, China) Abstract: The extensive existence of cockroach in Daqu- making workshop will reduce the quality and the yield of Daqu. As we know, the tarsus and tibial structure of cockroach leg makes it difficult for cockroach to crawl on smooth and large inclination angle surface. Accordingly, a highly- efficient cockroach trap device by using sesame oil as the bait had been developed. Its application in Daqu- making workshop proved that it is an effective cockroach trap device (the weight of trapped cockroach up to 41.1~ 54.0 kg from April to August in 2015). Key words: cockroach; Daqu; trap; physical characteristics

制曲是白酒生产中一个非常重要的工序,因为大曲为白酒酿造提供菌源,同时也是白酒酿造的糖化发酵剂和生香剂。曲中含有多种不同种类的微生物,通过它们的作用,在大曲酿酒过程中产生种类繁多的代谢产物,使酒体富含多种风味物质,从而形成特定的风味体系和不同的香型。大曲对白酒香型形成意义重大,其对白酒酿造的贡献主要体现在三方面:投粮作用、糖化发酵以及生香,因此传统生产中有“酿酒必先制曲”的说法。但是传统的制曲过程是在相对开放的环境中进行,且曲含有丰富的营养物质,因此极易吸引、滋生各种曲虫和蟑螂。这些生物在制曲车间及其周围繁殖、活动,每 年在4—9月份这段气温较高的时期,其数量会大面积地爆发。曲虫和蟑螂平时主要以大曲为食,造成大曲产量大幅度减少,损失的大曲量约占到全部曲量的8 %~15 %[ 。曲虫和蟑螂在繁殖期间会将

1]虫卵产在曲块中,从而导致曲虫和蟑螂的不断繁衍和传播。根据文献显示,在茅台镇的各个酒企中,曲虫和蟑螂对大曲贮藏与生产的危害十分普遍,是一个长期存在且无法根治的问题。此外,蟑螂多爬行,活动范围较广,且普遍畏光、夜行,多在下水道等地方活动,所以会携带和传播多种致病菌和对生产“有害”的微生物,直接影响大曲的质量。目前,茅台镇的部分酒企已经开始对曲虫的种类、数量、

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