摘要
为提高微生物絮凝剂的产量,选取自主筛选的优势菌种克雷伯氏菌J-1,研究其生长发酵过程,探索菌体生长与产物生成之间的内在规律,得到产絮菌J-1的生长动力学模型及其产物生成动力学模型。结果表明:产絮菌J-1代谢产物的生成与其菌体总量相关,保证充足的营养和生物量,微生物絮凝剂的合成速率得到有效提高。当产絮菌J-1发酵至15 h时,絮凝率最高为94.97%。
This paper is an attempt to improve the yield of microbial flocculants.The study starting with growth characteristics and flocculation activity of bioflocculant producing strain J-1 works towards the growth and fermentation kinetics of bioflocculant;and the law underlying the association between strain growth and product formation.This results in the growth kinetics model and product formation kinetics model of strain J-1.The results reveal that there is an association between the product formation of bioflocculant producing strain J-1 and the total amount of bacteria;an effective improvement in the synthesis rate of bioflocculant is possible with the presence of adequate nutrition and biomass;and the fermentation time of 15 h ensures the maximum flocculating rate of up to 94.97％.
作者
邢洁
李立欣
王强
马放
XING Jie LI Lixin WANG Qiang MA Fang(Heilongjiang Provincial Research Institute of Environmental Sciences, Harbin 150056, China School of Environmental ＆ Chemical Engineering, Heilongjiang University of Science ＆ Technology, Harbin 150022, China State Key Laboratory of Urban Water Resource ＆ Environment, Harbin Institute of Technology, Harbin 150090, China)
出处
《黑龙江科技大学学报》
CAS
2016年第3期300-303,共4页
Journal of Heilongjiang University of Science And Technology
基金
水体污染控制与治理科技重大专项(2014ZX07201-012-01)
国家自然科学基金项目(51408200)
哈尔滨市科技创新人才研究专项资金项目(2015RQQXJ015)
关键词
微生物絮凝剂
产絮菌
生长动力学
产物生成动力学
bioflocculant
bioflocculant producing strain
growth kinetics
product formation kinetics
