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黄原胶降解菌的生长规律及影响因素 被引量:5

The Growth Rhythm and Influencing Factors of the Xanthan Degrading Bacteria
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摘要 黄原胶降解菌是从土壤和水中分离出来的,它是以黄原胶为碳源进行生物降解的一类微生物。对黄原胶降解菌具有较强降解能力的为杆状菌和球菌,杆状菌菌体大小为(0.2~1.0μm)×(0.8~3.2μm),球茸大小为0.2~0.4μm,革兰氏染色阴性。通过对黄原胶降解菌的生长规律及其影响因素研究,绘制出了黄原胶降解菌的生长曲线,确定出了其最适生长条件:矿化度为5×10^3mg/L,pH值为7.5,温度为35℃,摇床转速为120r/min,接种量为5%较适宜,黄原胶降解菌在黄原胶浓度为1~5g/L范围内生长较快。 The degrading bacterium was separated out from the soil and water,and it is a microorganism conducting biodegrading using xanthan as the source of carbon.The bacillus and coccus have stronger de grading ability to degrade the xanthan degrading bacteria.The size of the bacillus is(0.2-1.0 μm) ×(0.8-3.2 μm) while the size of the coccus is 0.2-0.4 μm,with a Gram staining being negative.Researches on the growth and the influencing factors of the xanthan degrading bacteria gave birth to a growth curve of the xanthan degrading bacteria and the optimal growth conditions: a salinity of 5×103 mg/L,a pH of 7.5,a temperature of 35 ℃,a revolution speed of 120 r/min for the shaker,and an inoculation volume of 5%.The growth of the xanthan degrading bacteria is faster when the concentration of the xanthan solution is 1-5 g/L.
出处 《钻井液与完井液》 CAS 北大核心 2007年第6期69-71,共3页 Drilling Fluid & Completion Fluid
关键词 黄原胶降解菌 生长规律 影响因素 环境保护 Xanthan degrading bacteria,Rule,Influencing factors
作者简介 易绍金,教授,1963年生,1984年毕业于同济医科大学环境微生物专业,现在长江大学化学与环境工程学院从事石油与环境微生物和油气田环境保护教学与科研工作。地址:湖北省荆州市南环路一号长江大学化学与环境工程学院;邮政编码434023;电话(0716)8060286/13997611361;E—mail:yishaojin@vip.sina.com。
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参考文献5

  • 1Cripps R E, Sommerville H J, Holt M S. Xanthanase Enzyme and Its Production. EP0030393 A1,1981.
  • 2Cadmus Martin C, Jackson Linda K, Burton Kermit A, et al. Biodegradation of Xanthan Gum by Bacillus sp. Applied and Environmental Microbiology. 1982, 44 : 5-11.
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  • 5易绍金,熊汉辉.细菌瓶法用于黄原胶降解菌菌数测定[J].油田化学,2005,22(2):192-194. 被引量:9

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