响应面法优化重组谷氨酸棒杆菌G-BC 产脂肪酸的培养条件Optimization of culture conditions for fatty acid production of recombinant Corynebacterium glutamicum G-BC by response surface methodology
乙酰辅酶A羧化酶是谷氨酸棒杆菌中调控脂肪酸合成的关键酶。为了研究乙酰辅酶A羧化酶α亚基(accBC)基因对脂肪酸合成的影响,以accBC表达的菌株重组谷氨酸棒杆菌G-BC为材料,研究了诱导剂异丙基-β-D-硫代半乳糖苷(IPTG)浓度、培养时间、培养温度对重组谷氨酸棒杆菌G-BC脂肪酸产量的影响,并通过响应面法优化了重组谷氨酸棒杆菌G-BC产脂肪酸的培养条件,同时与原始菌株脂肪酸产量进行了对比。结果表明:重组谷氨酸棒杆菌G-BC产脂肪酸的最佳条件为诱导剂浓度1 mmol/L 、培养时间20 h、培养温度32 ℃,在此条件下脂肪酸产量为34.56 mg/g(以菌体干质量计),比原始菌株提高了1....
Main Author: | 杨青,孙子羽,满都拉,王佳,刘瑾,金晶晶,陈忠军 YANG Qing, SUN Ziyu, Mandlaa,WANG Jia, LIU Jin, JIN Jingjing, CHEN Zhongjun |
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Format: | Article |
Language: | English |
Published: |
中粮工科(西安)国际工程有限公司
2022-07-01
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Series: | Zhongguo youzhi |
Subjects: | |
Online Access: | http://tg.chinaoils.cn/ch/reader/create_pdf.aspx?file_no=20220723&year_id=2022&quarter_id=7&falg=1 |
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