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Position: Home > Articles > Selective Breeding High-producing Strain of Naringinase by Complex Mutagenesis Hunan Agricultural Sciences 2010 (3) 1-3+7

复合诱变选育柚苷酶高产菌株的研究

作  者:
李志坚;谭兴和;单杨;李高阳
单  位:
湖南农业大学食品科技学院;湖南省农产品加工研究所
关键词:
复合诱变;柚苷酶;紫外线;60Co-γ射线;选育
摘  要:
以柚苷酶产生菌黑曲霉FY01-4为试验菌株,采用紫外线和60 Co-γ射线进行复合诱变,经摇瓶复筛选育出一株柚苷酶高产菌株C15,酶活达1 285.6 U/mL,是出发菌株的3.59倍。连续传代10代,酶活仍保持在1 200~1 300 U/mL之间,菌株产酶稳定性良好,可作为生产柚苷酶的优良菌株。
译  名:
Selective Breeding High-producing Strain of Naringinase by Complex Mutagenesis
作  者:
LI Zhi-jian1,2,TAN Xing-he2,SHAN Yang1,LI Gao-yang1(1.Hunan Institute of Agro-food Science and Technology,Changsha 410125,PRC;2.College of Food Science and Technology,HNAU,Changsha 410128,PRC)
关键词:
complex mutagenesis;naringinase;ultraviolet ray;60 Co-γray;selective breeding
摘  要:
A producing strain of naringinase-Aspergillus niger FY01-4 was taken as experimental strain,using ultraviolet ray and 60 Co-γray to complex mutagenize it.Then,a high-producing strain of naringinase C15 was secondarily screened with shake bottle,whose enzyme activity reached 1 285.6 U/mL and it was 3.59 times higher than that of original strain.Serial passage 10 generations,the enzyme activity of C15 kept in a range of 1 200 U/mL to 1 300 U/mL,the stability of producing strain was great,it could be a choiceness strain to produce naringinase.

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