PVC薄膜味觉传感器阵列对调味品和软饮料的识别  

Recognition of Condiments and Soft Drinks with PVC Membrane Taste Sensor Array

作　　者：黄赣辉[1] 邓少平 顾振宇 

机构地区：[1]南昌大学食品科学教育部重点实验室,江西南昌330047 [2]浙江工商大学感官科学实验室,浙江杭州310035

出　　处：《食品科学》2006年第10期84-88,共5页Food Science

基　　金：国家自然科学基金资助项目(30060025)

摘　　要：以铂工作电极(PtE)为基底聚合吡咯(PPy),并在聚吡咯表面被覆不同味敏剂修饰的PVC薄膜,得到八支味觉传感器,并进而与217型双盐桥饱和甘汞电极构成味觉传感器阵列-8-PPP-TSA。采用开路电位法获取调味品和软饮料不同样品在各传感器界面的数据响应矩阵,数据矩阵使用主成分分析方法可将各样品属性的相似相异程度在二维得分图上得以直观表达,调味品被分为鲜、咸-鲜、咸、酸四个区,软饮料被大致分为甜、高酸低甜、高甜低酸三个区;根据各样本之间的欧氏距离大小,使用聚类分析方法作亲疏关系树形谱系图,在不同的相似度下可将众多样品依据亲疏关系远近进行有层次的味觉聚类区分,错判较少。此外,模式识别分析结果表明,8-PPP-TSA的仿生味觉识别具有与生物味觉识别相似的特点。Having platinum electrode （PtE） as the substrate polypyrrole （PPy） coated with different taste sensitives modifying agent PVC membrane, 8 taste sensors are acquired which then constitute arrays- 8-PPP-TSA, together with model 217 double salt bridge SCE. By means of open circuit potential, the corresponding data reaction matrix of the different sample condiments and soft drinks are obtained on the taste sensor interfaces. The data reaction matrix makes possible on the score biplot the visual expression of the similarity and variant degree of the samples via principal components analysis, which accordingly classify the condiments into 4 kinds, namely, umima, salt-umima, salt and sour etc, while the soft drinks into 3 types of sweetness, soursweetness and sweetness-sour. And according to the different Euclid distances of the samples, the dendrogram of cluster analysis can be composed using cluster analysis to taste-cluster the diverse samples in terms of the similarity degrees with few classifying errors. In addition, the pattern recognition analysis indicates that the bionic- taste- recognition function of the 8-PPP-TSA shares similar characteristics of the bio-taste-recognition.

关 键 词：味觉 人工智能味觉系统 PVC薄膜味觉传感器 传感器阵列 模式识别 

分 类 号：O657.1[理学—分析化学] TP212.2[理学—化学]