食品与发酵科技
食品與髮酵科技
식품여발효과기
SICHUAN FOOD AND FERMENTATION
2013年
1期
34-36
,共3页
微生物絮凝剂%筛选%发酵条件
微生物絮凝劑%篩選%髮酵條件
미생물서응제%사선%발효조건
microbial flocculant%screening%fermentation conditions
从活性污泥中筛选出1株絮凝活性较高的微生物絮凝剂产生菌,命名为QN005.采用单因素试验对该菌株的培养条件进行研究,研究结果表明,该菌株产絮凝剂的发酵条件为:碳源为2%葡萄糖,氮源为0.2%牛肉膏,无机盐为0.5%CaCl2,初始pH为7.0,发酵温度为37℃,发酵时间为72h.在此条件下QN005菌株对高岭土悬浊液的絮凝率达到79.6%.
從活性汙泥中篩選齣1株絮凝活性較高的微生物絮凝劑產生菌,命名為QN005.採用單因素試驗對該菌株的培養條件進行研究,研究結果錶明,該菌株產絮凝劑的髮酵條件為:碳源為2%葡萄糖,氮源為0.2%牛肉膏,無機鹽為0.5%CaCl2,初始pH為7.0,髮酵溫度為37℃,髮酵時間為72h.在此條件下QN005菌株對高嶺土懸濁液的絮凝率達到79.6%.
종활성오니중사선출1주서응활성교고적미생물서응제산생균,명명위QN005.채용단인소시험대해균주적배양조건진행연구,연구결과표명,해균주산서응제적발효조건위:탄원위2%포도당,담원위0.2%우육고,무궤염위0.5%CaCl2,초시pH위7.0,발효온도위37℃,발효시간위72h.재차조건하QN005균주대고령토현탁액적서응솔체도79.6%.
A strain, QN005, with high and stable flocculating activity was isolated from activate sludge. The cultur-al conditions of QN005 were studied by single factor test. The experimental results indicate that the carbon source, nitrogen source, mineral salt, initial pH, fermentation temperature and fermentation time were 2% glucose, 0.2%beef extract, 0.5% CaCl2, pH 7.0, 37℃ and 72 h. Under these culture conditions, the strain, QN005, produces a highly efficient flocculant with 79.6% of flocculation rate against kaolin suspension.
