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高压匀浆破碎释放重组大肠杆菌提取包含体过程的研究

Study on Recombinant E.Coli by Disruption in a High Pressure Homogenizer

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【作者】 吴蕾洪建辉甘一如张瑛

【Author】 WU Lei, HONG Jian-hui, GAN Yi-ru, ZHANG Ying (School of Chemical Engineering and Technology ,Tianjin University, Tianjin 300072, China)

【机构】 天津大学化工学院!天津300072

【摘要】 用高压匀浆机对重组大肠杆菌细胞进行破碎以释放重组人白细胞介素-6(rhIL-6)包含体,系统研究了高压匀浆过程中物理和化学因素的影响,包括匀浆次数,操作压力,料液的pH 及悬浮体系的影响。从而选择操作压力为80MPa,悬浮体系为去离子水,经3次破碎,表达量为20%的菌体可获得粗包含体的纯度约为40%。此外,本文还对该高压匀浆破碎过程进行了动力学分析。

【Abstract】 The disruption of recombinant E.Coli cells by a high-pressure homogenizer was investigated for the extraction of rhIL-6 inclusion bodies. A systematic study was carried out on the influence of physical and chemical factors including homogenizer passes, operating pressure and suspension system during homogenization processes. Under exprimental conditions: 80Mpa, deionized water suspending systen, 3 passes through the homogenizer, the original pellet of inclusion bodies contained about 40% rhIL-6 can be achieved from recombinant E.Coli which rhIL-6 accumulation levels is of 20% total cell protein. Meanwhile , kinetic studies of this disruption process had been made, a kinetic model was uesd and kinetic parameters were obtained under different conditions.

【基金】 国家95重点攻关项目!(96-C02-01-04)。
  • 【文献出处】 高校化学工程学报 ,Journal of Chemical Engineering of Chinese Universities , 编辑部邮箱 ,2001年02期
  • 【分类号】Q242;Q939.121
  • 【被引频次】26
  • 【下载频次】639
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