基于矿物元素指纹图谱对新疆皮山红羊真实性鉴别  

Authentication of Xinjiang Pishan Hong Sheep Meat Based on Multi-element Fingerprinting

作　　者：赵莱昱 张鸿儒 王晶[2] 张春晖[1] ZHAO Laiyu;ZHANG Hongru;WANG Jing;ZHANG Chunhui(Institute of Food Science and Technology,Chinese Academy of Agricultural Sciences,Beijing 100193,China;Xinjiang Academy of Animal Science,Ürümqi 830000,China)

机构地区：[1]中国农业科学院农产品加工研究所,北京100193 [2]新疆畜牧科学院,新疆乌鲁木齐830000

出　　处：《食品科学》2024年第4期300-306,共7页Food Science

基　　金：新疆现代农业产业技术体系项目(XJARS-XM-08);新疆维吾尔自治区“三农”骨干人才培养项目(2022SNGGGCC039)。

摘　　要：利用矿物元素与多元统计分析相结合的方法,对新疆皮山红羊进行真实性鉴别。以36只新疆皮山红羊与36只湖羊作为实验对象,利用电感耦合等离子质谱仪测定其背最长肌及半腱肌中51种矿物元素。结果表明,皮山红羊肌肉中矿物元素表现出明显的指纹特征,以稀有元素为主。以矿物元素为基础构建了线性判别分析模型,结果显示,矿物元素对皮山红羊的判别效果较好,且在背最长肌中的判别效果更显著,品种和肌肉部位判别模型准确率分别为100%和99.29%。La、Zn、Cs、Sn、Ho、Fe、Rh、Co、Se、Te、Mo、Al、Sb 13种矿物元素可作为鉴别皮山红羊的主要矿物元素,其中,Rh、Te、Ho元素对皮山红羊的鉴别贡献度最高,且这3种元素仅在红羊肌肉中检出,因此可作为鉴别皮山红羊的关键矿物标志物。特征元素的累积与地域特征有关。The study explored a method based on multi-elements combined with multivariate analysis to authenticate Xinjiang Pishan Hong sheep meat.A total of 36 Pishan Hong sheep and 36 Hu sheep were collected and slaughtered.Semitendinosus and longissimus dorsi muscles were excised from each carcass for analysis of 51 mineral elements by inductively coupled plasma mass spectrometry(ICP-MS).Results indicated that the mineral elements,especially rare elements,in Xinjiang Pishan Hong sheep meat had distinctive fingerprint characteristics.The linear discriminant analysis(LDA)model built based on the mineral element data showed good discriminant performance for Xinjiang Pishan Hong sheep meat,especially longissimus dorsi with an accuracy of 100%and 99.29%for breed and muscle,respectively.Besides,La,Zn,Cs,Sn,Ho,Fe,Rh,Co,Se,Te,Mo,Al and Sb could be used as the major mineral elements to identify Pishan Hong sheep meat.Among them,Rh,Te and Ho had the highest variable importance in the projection(VIP)scores,and were found only in Pishan Hong sheep meat,thus being the key mineral markers for identifying Pishan Hong sheep meat.The accumulation of characteristic elements was related to regional characteristics.

关 键 词：皮山红羊 矿物元素 判别分析 真实性 

分 类 号：TS207[轻工技术与工程—食品科学]