啤酒^1H NMR指纹谱与模式识别分析  

^1H NMR Fingerprinting Spectra and Pattern Recognition of Beer

作　　者：赵蕊[1] 张巍[2] 欧阳捷[1] 尚倩[1] 邓志威[1] 

机构地区：[1]北京师范大学分析测试中心,北京100875 [2]北京市理化分析测试中心,北京100089

出　　处：《食品科学》2008年第12期564-567,共4页Food Science

摘　　要：本实验以啤酒为研究对象,提出了一种基于核磁共振质子(1HNMR)谱的指纹识别分析方法。该工作根据啤酒样本的特点,对样品预处理方法、核磁共振实验技术与实验条件、数据处理以及模式识别等环节进行了分析研究。在此基础上获取了一组市售听装啤酒的1HNMR谱,并对其指纹特征进行了初步判证。同时利用主成分分析等手段对上述样品的谱图数据进行了模式识别的类分分析,成功地将19种啤酒按产地区分开来。实验中所采用的方法可靠、易控,可以直接用于液态食品检验。In this study, an analytical method of the fingerprint identification based on ^1H NMR spectroscopy was proposed with beer as object. The procedure including sample pretreatment, NMR technique, experimental condition, data treatment and principle component analysis was investigated for beer specially. In this work, with the access to the ^1H NMR spectra of 19 brands of beer, their fingerprinting characteristics were preliminary distinguished. While using such means as principle component analysis of the data for the sub-category, the selected samples were successfully grouped basing on producing areas. The results showed that the created method is reliable, feasible and easy to be handled, and it can be used in the proof-test of liquid food products.

关 键 词：核磁共振 指纹谱 模式识别 啤酒 

分 类 号：TS207.3[轻工技术与工程—食品科学]