摘要
目的:杜绝以低龄酒冒充高龄酒,实现对白酒酒龄的判别。方法:利用近红外光谱仪采集白酒样品的近红外透射光谱,以酒龄作为外扰,构建各白酒样品的同步和异步二维相关谱;在此基础上,提取每个样品的自相关谱,并结合马氏距离法建立白酒酒龄判别模型。结果:1400~1800 nm波段范围内包含白酒样品随酒龄变化的有效信息;模型校正集判别正确率为93.3%,预测集判别正确率为92.0%。结论:二维相关谱结合马氏距离法能够对白酒酒龄进行有效鉴别。
Objective:To avoid young liquor as old liquor and realize the discrimination of Baijiu age.Methods:The near infrared transmission spectra of Baijiu samples were collected by near infrared spectrometer,and the synchronous and asynchronous two-dimensional correlation spectra of Baijiu samples were constructed with the wine age as the external disturbance.On this basis,the autocorrelation spectrum of each sample was extracted,and the age discrimination model of Baijiu was established by combining Markov distance method.Results:The wave band from 1400 nm to 1800 nm contained the effective information about the changes of Baijiu samples on age.The discrimination accuracy of model correction set was 93.3%,and that of prediction set was 92.0%.Conclusion:Two dimensional correlation spectrum combined with Mahalanobis distance method can effectively identify the age of Baijiu.
作者
周涛
张志勇
韩宁
高炜
贾丽艳
ZHOU Tao;ZHANG Zhi-yong;HAN Ning;GAO Wei;JIA Li-yan(College of Agricultural Engineering,Shanxi Agricultural University,Taigu,Shanxi 030801,China;Wheat Research Institute of Shanxi Agricultural University,Linfen,Shanxi 041000,China;College of Food Science and Engineering,Shanxi Agricultural University,Taigu,Shanxi 030801,China)
出处
《食品与机械》
北大核心
2022年第12期56-59,98,共5页
Food and Machinery
基金
山西省自然科学基金项目(编号:201701D121103)
国家重点研发计划项目(编号:2016YFD0701801)。
关键词
近红外光谱
二维相关谱
判别分析
酒龄鉴别
near-infrared spectroscopy
two dimensional correl-ation spectrum
discriminant analysis
alcohol age identification
