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2003-2020 全部
为您找到包含“乙醇耐受性”的内容共3

Zheng Yu,Han Qi,Zhang Keping,Wang Min

Acetobacter pasteurianus is usually used for vinegar fermentations, however, the growth of A. pasteurianus was commonly inhibited by high ethanol concentration. In this research, the ethanol resistance of A. pasteurianus CGMCC 3089 was improved by a continuous ethanol stress adaptation culture. The characterization of A. pasteurianus CGMCC 3089 during the evolutionary process of adaptation to ethanol was performed with respect to the improved resistance to ethanol. It was found that the ethanol resistance of A. pasteurianus was related to the activities of alcohol dehydrogenase (ADH) and aldehyde dehydrogenases (ALDH). Furthermore, the improved resistance against ethanol was an inheritable phenotype, instead of a transient physiologic adaptation. The results of Random Amplified Polymorphic DNA (RAPD) suggested that there was some diversity between the genomes of the original strain and the evolutionary strain.

2012-11-01

National High Technology Research and Development Program of China (2012AA021303

Program for Changjiang Scholars and Innovative Research Team in University( 2012AA022108

Doctoral Program Foundation of Institutions of Higher Education of China(IRT1166

Foundation of Tianjin University of Science and Technology(20101208120003

National Natural Science Foundation of China(20110114

Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin Key Lab of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457,Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin Key Lab of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457,Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin Key Lab of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457,Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin Key Lab of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin,

#Biology#

刘芯蕊,陈晶瑜

2013-02-27

酿酒酵母是发酵工业的重要生产菌株,其环境耐受性直接影响到产品的产量和质量。本研究通过异源表达PHA聚合酶,在酿酒酵母中建立PHA合成路径,研究由PHA合成介导的全细胞调控对提高酿酒酵母环境耐受性的影响。结果表明,PHA聚合酶异源表达后,酿酒酵母在16%和18%乙醇应激下,存活率分别提高了3.3倍和14倍;45℃高温应激后,细胞存活率提高不显著,50℃高温应激后,存活率提高了7倍。说明PHA聚合酶异源表达能够提高酿酒酵母乙醇和高温耐受性。

教育部高等学校博士学科点专项科研基金(编号:20090008120028

中国农业大学食品科学与营养工程学院,北京 100083,中国农业大学食品科学与营养工程学院,北京100083

#食品科学技术#

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雷娟娟,赵心清,葛旭萌,白凤武

2007-05-18

利用激光聚焦反射式颗粒测量系统,通过调节不同的搅拌速率,得到了补料分批培养条件下粒度分布不同的四个絮凝酵母SPSC01颗粒群体,进而对絮凝颗粒群体分布对乙醇耐受性进行了系统研究。经过6 h、20

国家自然科学基金(30500011

大连理工大学生物科学与工程系,大连理工大学生物科学与工程系,大连理工大学生物科学与工程系,大连理工大学生物科学与工程系

#生物学#

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