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《Chinese Journal of Zoology》 2006-06
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Effect of Temperature on Activity of Digestive Enzymes in Silurus lanzhouensis

YANG Yuan-Hao~(①②) ZHOU Ji-Shu~① JI Hong~① GONG Yue-Sheng~①YANG Juan-Ning~② LI Wei-Ping~(②)(①College of Animal Science and Technology,Northwest A&F University,Yanglin Shaanxi 712100;②Supervision & Test Center for Fisheries Environment and Quality of Fishery Products of Ministry of Agriculture in Xi′an,Yellow River Fisheries Research Institute, Chinese Academy of Fishery Science,Xi′an 710086,China)  
The protease,amylase and lipase activities in Silurus lanzhouensis under the condition of different temperature(15℃,20℃,25℃,30℃,37℃,42℃ and 47℃) were studied.The results showed that: with the increasing of temperature,the digestive enzymes' activities increased at first,then decreased.The optimum temperatures of the protease in all digestive tissues and organs were 42℃;those of amylase were 30℃ except stomach and hepatopancreas,which was 37℃; those of lipase were 25℃ except posterior intestine,which was 30℃.The optimum temperatures of these enzymes were higher than the temperature that the fish lived in,which showed the protein of enzymes' thermostability.Under respective optimum temperature,protease activity changed in the order from high to low as anterior intestine ≈middle intestineposterior intestinehepatopancreas≈stomach;amylase activity changed as anterior intestinemiddle intestinehepatopancreasstomachposterior intestine;lipase activity changed as middle intestineposterior intestineanterior intestine≈ hepatopancreasstomach,which showed that anterior intestine and middle intestine are the main positions in digesting protein,also anterior intestine and middle intestine are the main positions in digesting amylase and lipid respectively.The activity of protease is higher than that of amylase in the temperature from 25℃ to 37℃.The result also showed that the range of temperature for lipase to exert its activity was narrower than that of protease and amylase.
【Fund】: 中国水产科学研究院科研基金项目(No.2003-01-05);;
【CateGory Index】: S917.4
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China Proceedings of conference Full-text Database 5 Hits
1 BIAN Hui-Hui~(1,2)HUANG Jie~(1,2*)WANG Xiu-Hua~1 JIANG Ji-Zhi~3 (1 Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences, Qingdao,266071) (2 ShangHai Ocean University,ShangHai,201306)(3 Hebei University,Baoding,071002);Protease Activity and Chyme Protein Tracer by GFP in the Digestive Tract of Flounder Paralichthys olivaceus[A];[C];2010
2 LIANG Zhi-qiang~1,LI Chuanwu~1,BIAN Wei~1,Liu Ming-qiu~1,YU Chang-sheng~2,YANG Dian-yuan~2 (1.Fisheries Research Institute of Hunan province,Changsha 410153,P.R..China;2.Animal Husbandry and Aquatic Products Bureau of Huaihua city,Huaihua,418000,P.R.China);Morphological,histological observation of digestive system and digestive enzyme activity in Sinilabeo decorus tungting(Nichols)[A];[C];2010
3 Zhang Chun-mei~1 Wang Cheng-zhang~1 Gao Yong-ge~2 Li Zhen-tian~1 Liu Xiang~2 Shi ying-hua~1 He Yun~1 Liu Quan-wei~1 (1.Henan Agricultural University,college of animal husbandry and veterinary,Zhengzhou 450002,China; 2.Forage Grass and Feedstuff Station of Animal Husbandry Bureau of Henan Province,Zhengzhou,Henan 450011,China);Effects of Medicago Sativa on Growing Performance,Fish Meat Quality and Digestive Enzymes of Cyprinus Carpio[A];[C];2008
4 ZHANG Wei~1 CHEN Li-qiao~1 GU Zhi-min~2 JIA Yong-yi~2 (1.School of Life Science,East China Normal University,Shanghai 200062,China; 2.Zhejiang Institute of Freshwater Fisheries,Huzhou 313001,China);Effects of Different Types of Culture Condition and Diets on the Digestive Enzymes of Bleeker(Erythroculter ilishaeformis)[A];[C];2008
5 ZHANG Yong-Pu~① SUN Jian-Li~① ZHOU Hua-Bin~② (①Department of Biological and Environmental Science,Wenzhou Normal College,Wenzhou 325027; ②The First Primary Educational School,Wenzhou Normal College,Wenzhou 325027,China);Seasonal Changes in Activity of Some Digestive Enzymes in Different Ages of Tegillarca granosa[A];CHINESE SOCIETY FOR OCEANOLOGY AND LIMNOLOGY (缩写CSOL)[C];2001
【Secondary References】
China Proceedings of conference Full-text Database 1 Hits
1 KUANG Gangqiao~*,LIANG Ke College of Fisheries in Rongchang Campus,Southwest University,Chongqing 402460,China;Study on Embryonic Development of Pterophyllum scalare[A];[C];2011
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