Kinetic study of alkaline protease 894 for the hydrolysis of the pearl oyster Pinctada martensii

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院海洋生物资源可持续利用重点实验室

	Kinetic study of alkaline protease 894 for the hydrolysis of the pearl oyster Pinctada martensii
	[Chen Xin ; Liu Qingqin] Foshan Univ, Sch Sci, Foshan 528000, Peoples R China ; [Chen Hua ; Cai Bingna ; Sun Huili] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China ; [Cai Bingna ; Sun Huili] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2013
卷号	31 期号:3 页码:591-597
关键词	alkaline protease 894 Pinctada martensii kinetics model inactivation constant proteolysis rate degree of hydrolysis
ISSN号	0254-4059
通讯作者	shl@scsio.ac.cn
中文摘要	A new enzyme (alkaline protease 894) obtained from the marine extremophile Flavobacterium yellowsea (YS-80-122) has exhibited strong substrate-binding and catalytic activity, even at low temperature, but the characteristics of the hydrolysis with this enzyme are still unclear. The pearl oyster Pinctada martensii was used in this study as the raw material to illustrate the kinetic properties of protease 894. After investigating the intrinsic relationship between the degree of hydrolysis and several factors, including initial reaction pH, temperature, substrate concentration, enzyme concentration, and hydrolysis time, the kinetics model was established. This study showed that the optimal conditions for the enzymatic hydrolysis were an initial reaction pH of 5.0, temperature of 30A degrees C, substrate concentration of 10% (w/v), enzyme concentration of 2 500 U/g, and hydrolysis time of 160 min. The kinetic characteristics of the protease for the hydrolysis of P. martensii were obtained. The inactivation constant was found to be 15.16/min, and the average relative error between the derived kinetics model and the actual measurement was only 3.04%, which indicated a high degree of fitness. Therefore, this study provides a basis for the investigation of the concrete kinetic characteristics of the new protease, which has potential applications in the food industry.
学科主题	Limnology ; Oceanography
资助信息	Supported by the Comprehensive Strategic Cooperation Programs between Guangdong Province and Chinese Academy of Sciences (No. 2011A090100008), and the Knowledge Innovation Program of Chinese Academy of Sciences (No. KZCX2-EW-Q214)
原文出处	SCIENCE PRESS
语种	英语
WOS记录号	WOS:000318719700013
公开日期	2015-01-22
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/11029]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	[Chen Xin,Liu Qingqin] Foshan Univ, Sch Sci, Foshan 528000, Peoples R China,[Chen Hua,et al. Kinetic study of alkaline protease 894 for the hydrolysis of the pearl oyster Pinctada martensii[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2013,31(3):591-597.
APA	[Chen Xin.,Liu Qingqin] Foshan Univ, Sch Sci, Foshan 528000, Peoples R China.,[Chen Hua.,Cai Bingna.,Sun Huili] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China.,...&Sun Huili] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China.(2013).Kinetic study of alkaline protease 894 for the hydrolysis of the pearl oyster Pinctada martensii.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,31(3),591-597.
MLA	[Chen Xin,et al."Kinetic study of alkaline protease 894 for the hydrolysis of the pearl oyster Pinctada martensii".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 31.3(2013):591-597.