稳定氢同位素在出口罗非鱼产地溯源中的应用  

Application of hydrogen stable isotope in Chinese export tilapia geographical origin traceability

作　　者：马冬红[1] 王锡昌[1] 刘利平[2] 刘源[1] 

机构地区：[1]上海海洋大学食品学院,上海201306 [2]上海海洋大学水产与生命学院,上海201306

出　　处：《食品与机械》2012年第1期5-7,25,共4页Food and Machinery

基　　金：国家自然科学基金资助项目(编号:30901125);"十一五"国家科技支撑计划课题(编号:2008BAD94B09);欧盟第七框架项目:Sustaining Ethical Aquaculture Trade(编号:Grant agreement No.222889);上海市教委重点学科建设项目(编号:J50704)

摘　　要：探索稳定性氢同位素对中国出口罗非鱼产地溯源的可行性。利用同位素比率质谱仪测定来自广东、海南、广西、福建4个地域来源的罗非鱼组织(腹肉和背肉)中δ2 H值。比较分析不同产地来源的罗非鱼组织中氢同位素组成的差异,及其与地域经度、纬度变化的关系,以及稳定性氢同位素用于罗非鱼产地溯源的可行性。结果表明,不同地域的罗非鱼组织中δ2 H同位素组成有显著差异(P<0.05);罗非鱼背肉与腹肉中δ2 H值有显著的相关性;罗非鱼肉中的δ2 H值有随着地理纬度增加而减小的趋势;以δ2 H同位素为指标,对罗非鱼肉产地的正确判别率高达85%。δ2 H同位素是罗非鱼产地溯源的一项很有潜力的指标。To assess the feasibility of isotopic traceability and function of δ2H values in Chinese export tilapia geographical traceability.Theδ2H values of tilapia（dorsal meat and abdominal meat）collected from Guangdong,Hainan,Guangxi and Fujian regions were investigated with an isotope ratio spectrometer.The differences of hydrogen composition of samples from above four regions were compared and the relationship between the stable hydrogen isotope in tilapia tissues and the longitude,latitude of the region was analyzed,and then the feasibility of applying the hydrogen isotope to trace the tilapia geographical origin was discussed.The results indicated that there were significant differences（P0.05） of δ2H values in tilapia tissues from different regions.In addition,there was very significant correlation of δ2H values between dorsal meat and abdominal meat of tilapia.The δ2H values in tilapia tissues decreased with the latitude increased.Based on the values of δ2H,the correct rate of the discriminant analysis was up to 85%.Stable hydrogen isotope in tilapia tissues is the potential indicator in tilapia geographical origin traceability.

关 键 词：稳定同位素 罗非鱼 产地 δ2H 

分 类 号：S965.125[农业科学—水产养殖]