抗坏血酸对粘质沙雷氏菌合成2,3-丁二醇的影响  

Effect of Ascorbic Acid on 2,3-Butanediol Synthesized by Serratia Marcescens

作　　者：李玲[1] 杨云龙[2] 

机构地区：[1]广州番禺职业技术学院信息工程学院,广东广州511483 [2]华东理工大学生物反应器工程国家重点实验室鲁华生物技术研究所,上海200237

出　　处：《清远职业技术学院学报》2009年第6期32-35,共4页Journal of Qingyuan Polytechnic

基　　金："十一五"863专题"生物法制备2;3-丁二醇"项目资助(2006AA02Z243)

摘　　要：研究了抗坏血酸在粘质沙雷氏菌合成2,3-丁二醇中对生物量、糖耗、产物及主要副产物乳酸的影响。结果表明,抗坏血酸可以抑制2,3-丁二醇合成过程中的主要副产物——乳酸的形成,同时极大提高了耗糖速度。通过单因素试验,发现在发酵基本培养基中加入9g/L的抗坏血酸使产物产量提高了77.74%,而对菌体生长没有显著影响。Effect of ascorbic acid on biomass, sugar consumption, products and the main byproduct by Serratia mareeseens was studied. The result showed that the aseorbic acid not only inhibited the formation of lactate-one of the important byproducts but also accelerated the sugar consumption. With the single factor tests, the ascorbic acid of 9g/L which was added to the fermentation medium made 2,3-butanediol enhance 77.74% in production proximately, and had no obvious effect on growth of the biomass.

关 键 词：抗坏血酸 粘质沙雷氏菌 2 3-丁二醇 乳酸 

分 类 号：TQ923[轻工技术与工程—发酵工程]