摘要
从污水处理厂活性污泥中筛选出1株有絮凝活性的细菌Z-052,经分子生物学鉴定为Di-aphorobacter属。对Z-052产絮凝剂的发酵条件进行了优化。研究结果表明,在优化培养基中,于30℃培养72 h,其发酵液对4 g/L高岭土悬液的絮凝活性可达93.2%。Z-052絮凝剂对活性炭、土壤、酵母等固体颗粒悬液的絮凝活性分别达到95.1%、80.4%和72.4%。
A flocculant-producing strain was isolated from the activated sludge and identified as genus Diaphorobacter, which named as Diaphorobacter Z-052. The effect of initial pH, culture temperature and different ion on flocculant production was careful investigated. A highest flocculating activity was achieved at 93.2% by combinational the optimum culture conditions. Furthermore, the bioflocculant production by Diaphorobacter Z-052 treat active carbon, soil and yeast was study, 95.1%, 80.4% and 72.4% flocculating activity was observed at carbon, soil and yeast, respectively.
出处
《食品与生物技术学报》
CAS
CSCD
北大核心
2007年第2期87-91,共5页
Journal of Food Science and Biotechnology
基金
辽宁省省级高校发酵工程重点实验室资助项目(辽发重开2004-002)
