啤酒混合废水发酵菌种筛选及工艺条件的研究

食品科学 ›› 2005, Vol. 26 ›› Issue (12): 152-156.

啤酒混合废水发酵菌种筛选及工艺条件的研究

贠建民, 张忠明, 吴国锋

甘肃农业大学食品科学与工程学院

出版日期:2005-12-15 发布日期:2011-10-01

Study on Strains Screening for SCP and Fermentation Conditions of Mixed-wastewater from Beer Industry

YUAN Jian-Min, ZHANG Zhong-Ming, WU Guo-Feng

Food Science and Engineering College, Gansu Agricultural University

Online:2005-12-15 Published:2011-10-01

摘要/Abstract

摘要： 本文选用了产朊假丝酵母(Candidauticis)、脆壁酵母(Saccharomycesfragilis)和酿酒酵母(Saccharomycescerevisiae)三个菌种进行了啤酒混合废水单细胞蛋白(SCP)发酵条件和菌种筛选试验。结果表明,对于单菌种发酵,产朊假丝酵母是能充分利用啤酒混合废水培养单细胞蛋白的较好菌种,它的生物量和化学需氧量(COD)去除率均为最高,其最佳培养条件分别为:接种量为15%和5%,培养时间为72h和48h,废水浓度为1:3和1:2。而对于混合菌种协同发酵而言,生物量和COD去除率的优选方案分别为:菌种均为产朊假丝酵母:酿酒酵母=1:1,接种量为10%和5%,培养时间72h和48h。

关键词: 单细胞蛋白(SCP), 菌种筛选, 发酵条件, 啤酒混合废水

Abstract: Trials of SCP fermentation conditions and strains screening were conducted with three strains: Candida uticis, Saccharomyces fragilis, Saccharomyces cerevisiae by using the mixed-wastewater of brewery. The results showed that for the single strain experiment, Candida uticis was the best strain for single cell protein(SCP) fermentation in mixed-wastewater of brewery. Its biomass and chemical oxygen demand(COD) reducing rate were the highest and the suitable project was obtained: strain: Candida uticis; inoculating quantity: 15% and 5%; culturing time: 72h and 48h, wastewater density: 1:3 and1:2 respectively; but for the mixed-strain’s test, the suitable project was: Candida uticis: Saccharomyces fragilis =1:1; inoculating quantity: 10% and 5%; incubating time: 72h and 24h.

Key words: SCP(single cell protein), screening strain, fermentation conditions, mixed-wastewater of beer industry

贠建民, 张忠明, 吴国锋. 啤酒混合废水发酵菌种筛选及工艺条件的研究[J]. 食品科学, 2005, 26(12): 152-156.

YUAN Jian-Min, ZHANG Zhong-Ming, WU Guo-Feng. Study on Strains Screening for SCP and Fermentation Conditions of Mixed-wastewater from Beer Industry[J]. FOOD SCIENCE, 2005, 26(12): 152-156.

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