基于离子迁移谱技术对冰鲜鸡肉和解冻鸡肉的鉴别  

Discrimination of Fresh,Chilled and Frozen-Thawed Chicken Based on Ion Mobility Spectrometry

作　　者：于林宏 王淑玲[1] 孙京新[1] 李鹏[1] 王述柏[1] 周兴虎 YU Linhong WANG Shuling SUN Jingxin LI Peng WANG Shubai ZHOU Xinghu(College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China Nanjing Nongda Meat Co. Ltd., Nanjing 210095, China)

机构地区：[1]青岛农业大学食品科学与工程学院,山东青岛266109 [2]南京农大肉类食品有限公司,江苏南京210095

出　　处：《肉类研究》2017年第3期51-55,共5页Meat Research

基　　金：山东省现代农业产业技术体系家禽创新团队项目(SDAIT-11-11;SDAIT-11-17);山东省自主创新成果转化重大专项(2010ZHZX1A0420);江苏省"双创计划"资助对象(双创博士类)项目;北方特色酱卤熏菜肴加工关键技术及产业化项目(2014BAD04B11);山东省现代农业产业技术体系创新团队项目(6682213032)

摘　　要：为实现冰鲜鸡肉和解冻鸡肉的快速鉴别,本实验采用离子迁移谱技术,取新鲜(对照组)、冰鲜和解冻鸡胸肉各10 g并搅碎成肉糜状,测定其剪切力、保水性(蒸煮损失率、汁液流失率、滴水损失率及加压损失率)、色泽和质构等理化指标并进行离子迁移谱的图谱采集,对其进行标准变量正态变换处理,利用主成分分析及判别函数分析进行鉴别。结果表明:冰鲜鸡肉的各项理化指标与新鲜鸡肉相比无显著性差异(P>0.05),而与解冻鸡肉相比差异显著(P<0.05);冰鲜鸡肉与解冻鸡肉的主成分分析得分达到98.60%,判别函数法得分高达99.17%,完全能够将2种样品进行区分。因此,离子迁移谱用于鉴别冰鲜鸡肉和解冻鸡肉是可行的。This research was done in an attempt to quickly discriminate fresh chilled and frozen-thawed chicken employing ion mobility spectrometry（IMS）.Samples（10 g each）of fresh（as control）,chilled and frozen-thawed chicken breast were minced for physiochemical measurements such as shear force,water-holding properties（cooking loss,exudate loss,drip loss and pressing loss）,color and texture properties.Moreover,IMS spectra were acquired and processed by standard normal variate（SNV）transformation.The discrimination was performed using principal component analysis（PCA）and discriminant function analysis（DFA）.Results showed that no signifi cant differences in all investigated parameters were seen between fresh and chilled samples（P〉0.05）,yet significant differences existed between chilled and frozen-thawed samples（P〈0.05）.PCA scores for chilled and frozen-thawed samples were 98.60%,and DFA scores were 99.17%,suggesting successful discrimination between the two samples.Consequently,IMS is feasible to be used to discriminate chilled and frozen-thawed chicken.

关 键 词：离子迁移谱 冰鲜鸡肉 解冻鸡肉 理化指标 主成分分析 判别函数分析 

分 类 号：TS251.55[轻工技术与工程—农产品加工及贮藏工程]