Identification  of Cellulose Degrading Bacteria in Namco Yak Dung and Its Enzyme Production Characteristics

doi:10.13438/j.cnki.jdzk.2023.03.009

Journal of Jishou University(Natural Sciences Edition) ›› 2023, Vol. 44 ›› Issue (3): 61-65.DOI: 10.13438/j.cnki.jdzk.2023.03.009

• Biological • Previous Articles Next Articles

Identification of Cellulose Degrading Bacteria in Namco Yak Dung and Its Enzyme Production Characteristics

LI Qiang,LUO Jin,YANG Jianing,GAO Hongtao,LIU Xuan,HE Jianwu

(1.College of Biology and Environmental Sciences,Jishou University,Jishou 416000,Hunan China;2.National & Local United Engineering Laboratory of Integrative Utilization Technology of Eucommia Ulmoides,Jishou University,Jishou 416000,Hunan China)

Online:2023-05-25 Published:2023-06-16

Abstract

Abstract: Through enrichment and purification,high efficient cellulose degrading strains were screened from yak dung in Namco Lake,Tibet.The enzyme production characteristics of cellulose degrading strains under different conditions were determined,and the genetic differences of the target strains were analyzed.The results showed that strain X1 and X2 had significant cellulose degradation advantage,and the relative enzyme activities of the two strains were strong at pH 4 and 9 ℃.Phylogenetic analysis showed that X1 and X2 might belong to the genus Cronobacter.

Key words: cellulose degrading bacteria, cellulase, yak dung, phylogenetic analysis

LI Qiang, LUO Jin, YANG Jianing, GAO Hongtao, LIU Xuan, HE Jianwu. Identification of Cellulose Degrading Bacteria in Namco Yak Dung and Its Enzyme Production Characteristics[J]. Journal of Jishou University(Natural Sciences Edition), 2023, 44(3): 61-65.

[1]	YI Min，YANG Yuting，LI Menglin，ZHANG Li，HE Jianwu，LIU Zhuxiang，CHEN Yiguang. Screening and Identification of a High-Temperature Resistant Cellulose-Degrading Bacterium [J]. Journal of Jishou University（Natural Sciences Edition), 2017, 38(4): 72-77.
[2]	LI Hong-Jun, XIAO Jian-Qing, CHENG Jin-Lian, LIU He, ZHONG Xiao-Juan, YI Min, HE Jian-Wu, LIU Zhu-Xiang, CHEN Yi-Guang. Screening and Phylogenetic Analysis of Antibiotic-Producing Halophilic and Halotolerant Bacteria from the Dehang Canyon in Hunan China [J]. journal6, 2014, 35(6): 73-77.
[3]	ZHONG Xiao-Juan, YU Bing, LIU He, XIAO Jian-Qing, LI Hong-Jun, FAN Lin, CHENG Jin-Lian, LIU Zhu-Xiang, CHEN Yi-Guang. Screening and Phylogenetic Analysis of Amylase-Producing Strains Isolated from the Air Samples from a Liquor Starter-Making Workshop of Jiugui Liquor Co. Ltd. [J]. journal6, 2014, 35(5): 51-54.
[4]	LIU Biao, MA Juan, TAN Ling, LIN Yong-Hui, WANG Hai-Yan, LIU Ren-Cheng. Production of Cellulase by Solid Fermentation ofStraw Stalk Using Aspergillus sp. [J]. journal6, 2012, 33(4): 95-100.
[5]	HE Le, LIU Zhu-Xiang, ZHU Jie, LI Xiao-Teng, CHEN Qi-Hui, XIONG Li-Zhi. Isolation and Molecular Identification of Endophytic Fungi JSM 10 from Huperzia crispate [J]. journal6, 2011, 32(3): 78-81.
[6]	ZHANG Ying-Qing, GAN Xin, XIE Bi-Jun. Preparation of Konjac Oligo-Glucomannan by Cellulase [J]. journal6, 2003, 24(3): 42-44.

Identification of Cellulose Degrading Bacteria in Namco Yak Dung and Its Enzyme Production Characteristics

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