微生物絮凝剂产生茵的筛选与絮凝特性研究

目的]筛选出活性高、用量少的微生物絮凝剂产生茵，探讨絮凝剂的成分及其絮凝特性。方法]通过稀释涂布法和划线法，从花园土壤中筛选到一株稳定高效的微生物絮凝剂产生茵WH一2，探讨其最佳培养条件。结果]在最佳培养条件下，其发酵液对高岭土悬液的絮凝率高于90％。该茵产生的絮凝剂不舍还原糖。当絮凝剂的投加量为3m1时，絮凝率最高，达75．4％。结论]WH-2具有重要的研究前景和应用价值。

Study on Screening and Flocculating Characteristics of a Microbial Flocculant Producing Strain

Objective]The research aimed to screen out a microbial flocculant producing strain and discuss the components of flocculant and its flocculation characteristics.Method]By dilution buttering method and lineation method,a strain WH-2,with high and stable flocculating activity was further screened from garden soil.And its optimum cultivation conditions were discussed.Result]Under the optimum cultivation conditions,the flocculation ratio of fermentation broth to kaolin clay suspension was more than 90%.There...