摘要
利用多频脉冲电子舌系统对鸡肉产品进行检测,选用40日龄白羽肉鸡、120日龄黄羽肉鸡、200日龄肥西老母鸡的生鲜鸡肉及加工后熟制鸡腿肉、鸡汤,电极信号用主成分分析方法进行分析。结果表明:对同品种生鲜鸡肉的不同部位(胸肉、腿肉),电子舌响应差异明显;对不同品种相同部位,选用单电极检测发现,银电极对于胸肉样品,有较好的响应;铂电极对于腿肉样品有一定的响应。对于熟制鸡腿、鸡汤,单电极区分没有效果。经过优化后的复合电极可实现不同品种相同部位生鲜鸡肉有效区分,实现加工的熟制鸡腿肉或鸡汤的区分。研究表明,多频脉冲电子舌在区分不同品种鸡肉及鸡肉加工产品方面具有应用潜力。
Breast and leg meat samples from three chicken breeds including 40-day-old white-feather chicken,120-day-old yellow-feather chicken and 200-day-old spent Fenxi hen were used to prepare cooked meat and soup.A multiple-frequency pulse electronic tongue was used to characterize and classify both raw and cooked samples,and their electrode signals were analyzed by principal component analysis(PCA).Significantly different electronic tongue sensor signals were observed for raw breast and leg samples from the same chicken breed.In addition,silver electrode was better than platinum electrode for the discrimination of breast meat samples from different chicken breeds,but platinum electrode was effective in discriminating leg meat samples from different chicken breeds.However,single electrodes were not effective in discriminating cooked leg meat and soup.The optimized use of electrodes allowed effective discrimination among different chicken breeds for raw breast and leg meat,cooked leg meat and soup.This study suggests that multiple-frequency pulse electronic tongue has potential applications in discrimination among meat and meat products from different chicken breeds.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2012年第21期100-103,共4页
Food Science
基金
南京农业大学青年科技创新基金项目(KJ2010019)
国家现代农业产业技术体系建设专项(CARS-42)
关键词
电子舌
鸡肉品种
鸡肉产品
区分
electronic tongue
chicken breed
chicken product
discrimination