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Position: Home > Articles > Biochemical utilization of brewery sewage as a raw material for the production of Bacillus thuringiensis Journal of Fujian Agriculture and Forestry University(Natural Science Edition) 2012,41 (4) 83-87

啤酒废水的Bt生化利用

作者：

吴丽云

单位：

福建农林大学生物农药与化学生物学教育部重点实验室

关键词：

苏云金杆菌(Bt);啤酒废水;城市污水;发酵;化学耗氧量(COD)

摘要：

对啤酒废水、城市污水的化学耗氧量(COD)的变化情况和发酵液毒力进行研究,结果表明:啤酒废水的年平均COD是城市污水的8倍,二者COD月变异系数分别为16.7%、57.3%,日变异系数分别为42%-52.4%、184.4%-391.3%;与城市污水相比,啤酒废水具有高且稳定的COD以及可生化性强等特点;以啤酒废水为原料发酵Bt,其活芽胞数均可达到108-109cfu.mL-1,其发酵液对2-3龄小菜蛾幼虫的毒力比城市污水培养Bt的发酵液高.与传统培养基相比,其二次废水残留的有机物质含量低,易于处理;与工业培养基相比,Bt在优化的啤酒废水培养,发酵周期可缩短61%-72%.

译名：

Biochemical utilization of brewery sewage as a raw material for the production of Bacillus thuringiensis

作者：

WU Li-yun1,2(1.Key Laboratory of Biopesticide and Chemical Biology,Ministry of Education,Fujian Agriculture and Forestry University, Fuzhou,Fujian 350002,China;2.Meizhouwan Vocational Technology College,Putian,Fujian 351254,China)

关键词：

Bacillus thuringiensis(Bt);brewery wastewater;urban sewage-digestive plant wastewater;fermentation;COD

摘要：

The COD variations of sewage from urban sewage-digestive plant and brewery wastewater-digestive plant were extensively investigated.Compared with the sewage from urban sewage-digestive plant,the average COD of brewery sewage was 8 times as high as that in urban sewage,the variability coefficient of month for brewery-wastewater and urban-sewage was 16.7% and 57.3% respectively,and variability coefficient of day in three months for brewery-wastewater and urban-sewage was 42%-52.4% and 184.4%-391.3% respectively.Wastewater from brewery wastewater-digestive plant possesed relatively invariable COD and with abundant nutrition.The result showed brewery-wastwater was the most suitable media,which could produce 108-109 cfu·mL-1 spores,with higher virulence to 2rd-3rd instar larvae of Plutella xylostella,the total organic carbon of secondary wastewater from brewery wastewater medium was lower than that of commerce medium when fermentation was overed.Compared with the commerce medium,Bt growed in optimazed-brewery-sewage medium possessed shorter fermentation cycle(nearly 61%-72%).

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啤酒废水的Bt生化利用

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