Deposition Pattern of Inosine Monophosphate( IMP) in Pig Muscle during Cold Storage  

作　　者：Zhu Rongsheng Wang Huaizhong Lin Song Wang Yanping Hu Hongmei 

机构地区：[1]Institute of Animal Husbandry and Veterinary Medicine,Shandong Academy of Agricultural Sciences/Shandong Provincial Key Laboratory of Disease Control and Animal Breeding

出　　处：《Animal Husbandry and Feed Science》2017年第4期197-199,218,共4页动物与饲料科学（英文版）

基　　金：Supported by National Natural Science Foundation of China(31501928);Youth Fund Project of Shandong Academy of Agricultural Sciences(2014QNM41);Science and Technology Development Program of Shandong Province(2015GNC111011);Natural Science Foundation of Shandong Province(ZR2015CM007)

摘　　要：[ Objective] The paper was to investigate the degradation and deposition changes of inosine monophosphate （IMP） and its metabolites in muscle of lean pigs and crossbreeding pigs under cold storage condition at 4℃. [ Method] The contents of IMP and its metabolites in longissimus dorsi of lean pigs and crossbreeding pigs were determined by HPLC method. [ Result] Duroc, Landrace, Yorkshire and DLY pigs shared the same degradation and deposition pattern on IMP, inosine and hypoxanthine. On the second day of cold storage, the content of IMP reached the maximum value, which increased by 0.4% - 15.32% compared with the first day, and then it started to decline. On the fourth day of cold storage, the content of IMP significantly reduced by 23.81% - 39.06% than that on the second day. On the fifth and sixth day of cold storage, the content of IMP kept on falling down slowly and maintained around 1.0 mg/g. While the contents of inosine and hypoxanthine showed an increasing tendency with the extension of cold storage time. [ Conclusion ] Lean pigs Duroc, Landraee and Yorkshire and DLY three- way crossbreeding pigs shared the same degradation and deposition pattern on IMP and its metabolites. With the extension of cold storage, the content of IMP first increased then gradually decreased; while inosine and hypoxanthine gradually increased, and the difference among breeds was not significant.[ Objective] The paper was to investigate the degradation and deposition changes of inosine monophosphate （IMP） and its metabolites in muscle of lean pigs and crossbreeding pigs under cold storage condition at 4℃. [ Method] The contents of IMP and its metabolites in longissimus dorsi of lean pigs and crossbreeding pigs were determined by HPLC method. [ Result] Duroc, Landrace, Yorkshire and DLY pigs shared the same degradation and deposition pattern on IMP, inosine and hypoxanthine. On the second day of cold storage, the content of IMP reached the maximum value, which increased by 0.4% - 15.32% compared with the first day, and then it started to decline. On the fourth day of cold storage, the content of IMP significantly reduced by 23.81% - 39.06% than that on the second day. On the fifth and sixth day of cold storage, the content of IMP kept on falling down slowly and maintained around 1.0 mg/g. While the contents of inosine and hypoxanthine showed an increasing tendency with the extension of cold storage time. [ Conclusion ] Lean pigs Duroc, Landraee and Yorkshire and DLY three- way crossbreeding pigs shared the same degradation and deposition pattern on IMP and its metabolites. With the extension of cold storage, the content of IMP first increased then gradually decreased; while inosine and hypoxanthine gradually increased, and the difference among breeds was not significant.

关 键 词：Pig muscle IMP Inosine HYPOXANTHINE Deposition pattern 

分 类 号：S828[农业科学—畜牧学]