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混合碳源流加对重组毕赤酵母生产碱性果胶酶的影响 被引量:13

Effects of mixed carbon sources in cultivation of recombinant Pichia pastoris for polygalacturonate lyase production
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摘要 为提高重组毕赤酵母生产碱性果胶酶(PGL)的产量和生产强度,在诱导期采用多种碳源与甲醇混合添加的模式。实验结果发现:甘油、山梨醇、乳酸与甲醇的混合添加均可以提高PGL的产量,其中山梨醇与甲醇的混合流加效果最为显著。研究表明,通过双碳源混合流加可以提高细胞活力,增强醇氧化酶活力,提高毕赤酵母表达外源蛋白效率。当山梨醇的流速为3.6g/(h·L)时,PGL酶活可达1593U/mL,生产强度为16.7U/(mL·h),比对照分别提高了84.6%和45.2%,实现了碱性果胶酶的高效生产。 In order to increase the production and productivity of alkaline polygalacturonate lyase (PGL),we studied the mixed carbon sources feeding strategies during the induction phase by recombinant Pichia pastoris GS115.Glycerol,sorbitol or lactic acid co-feeding with methanol all enhanced the PGL production.Among all the feeding strategies,the sorbitol co-feeding strategy was most significant.By using this strategy,the PGL activity and productivity reached 1593 U/mL and 16.7 U/(mL·h).Compared to the control,the enhancements of PGL activity and productivity were 84.6% and 45.2% respectively, when we set the sorbitol feeding rate at 3.6 g/(h·L).
出处 《生物工程学报》 CAS CSCD 北大核心 2009年第12期1955-1961,共7页 Chinese Journal of Biotechnology
基金 教育部新世纪优秀人才支持计划(No.NCET-07-0378) 国家自然科学基金(No.20836003) 江苏省科技支撑计划(No.SBE200900022) 国家高技术研究发展计划(863计划)(No.2009AA02Z204)资助~~
关键词 重组毕赤酵母 碱性果胶酶 混合碳源 流加策略 细胞存活率 醇氧化酶(AOX) recombinant Pichia pastoris polygalacturonate lyase mixed carbon sources feeding strategy cell viability alcohol oxidase (AOX)
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  • 1Gereghino JL, Cregg JM. Heterologous protein expression in the methylotrophic yeast Pichia pastoris. FEMS Microb Rev, 2000, 24: 45-66.
  • 2Peng LS, Zhong XF, Ou JX, et al. High-level secretory production of recombinant bovine enterokinase light chain by Pichia pastoris. J Biotechnol, 2004, 108: 185-192.
  • 3Cregg JM, Tschopp JF, Stillman C, et al. High-level expression and efficient assembly of hepatitis B surface antigen in the methylotrophic yeast, Pichia pastoris. Nat Biotechnol, 1987, 5: 479-485.
  • 4Chiruvolu V, Cregg JM, Meagher MM. Recombinant protein production in an alcohol oxidase-defective strain of Pichia pastoris in fedbatch fermentations. Enzyme Microb Technol, 1997, 21: 277-83.
  • 5Kalantzi S, Mamma D, Christakopoulos P, et al. Effect of pectate lyase bioscouring on physical, chemical and low-stress mechanical properties of cotton fabrics. Bioresource Technol, 2008, 99: 8185-8192.
  • 6Matsumoto T, Katsura D, Kondo A, et al. Efficient secretory overexpression of Bacillus subtilis pectate lyase in Escherichia coli and single-step purification. Biochem Eng J, 2002, 12: 175-179.
  • 7Bekri MA, Desair J, Keijers V, et al. Azospirillum irakense produces a novel type of pectate lyase. J Bacteriol, 1999, 181: 2440-2447.
  • 8张健红,李寅,刘和,刘登如,陈坚.一株碱性果胶酶高产细菌的分离、系统发育分析和产酶条件的初步优化[J].应用与环境生物学报,2005,11(3):354-358. 被引量:39
  • 9Zhuge B, DuGC, Wei S, et al. Expression of a Bacillus subtilis pectate lyase gene in Pichia pastoris. Biochem Eng J, 2008, 40: 92-98.
  • 10Wang Y, Wang ZH, Dn GC, et al. Enhancement of alkaline polygalacturonate lyase production in recombinant Pichia pastoris according to the ratio of methanol to cell concentration, Bioresource Technol, 2009, 100: 1343-1349.

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