傅里叶红近外光谱仪测定清香型白酒中总酸和总酯  

Determination of Total Acids and Esters in Qingxiangxing Baijiu by Fourier Transform Infrared Spectrometer

作　　者：杨文翠 YANG Wencui(Shanxi Xinghua Village Fenjiu Group Liquor Development Zone Co.,Ltd.,Fenyang 032200,Shanxi,China)

机构地区：[1]山西杏花村汾酒集团酒业发展区股份有限公司,山西汾阳032200

出　　处：《酿酒》2024年第4期128-130,共3页Liquor Making

摘　　要：运用近红外技术结合最小偏二乘法,建立了清香型白酒总酸和总酯的定量检测模型,并且采用决定系数(R2)、校正均方根误差(RMSECV)和预测均方根误差(RMSEP)对建立的模型进行评价。其中总酸模型的R2值为0.913,RMSECV值为0.0011,RMSEP值为0.0011;总酯模型的R2值为0.972,RMSECV值为0.023,RMSEP值为0.023。表明建立的模型具有较好的稳定性和预测性,能够满足清香型白酒总酸和总酯的快速测定要求。The quantitative detection model of total acid and total ester in Qingxiangxing baijiu was established by using near infrared spectroscopy and least partial square method,the decision coefficient(R2),root mean square error(RMSECV),and root mean square error(RMSEP)are used to evaluate the model.The R2,RMSECV and RMSEP values of the total acid model were 0.913,0.0011 and 0.0011,espectively,and those of the total ester model were 0.972,0.023 and 0.023,respectively.The results show that the model has good stability and predictability,and can meet the requirements of rapid determination of total acid and total ester in Qingxiangxing baijiu.

关 键 词：清香型白酒 总酸 总酯 近红外光谱 

分 类 号：TS262.32[轻工技术与工程—发酵工程] TS207.3[轻工技术与工程—食品科学与工程]