近红外光谱技术在酱香型大曲糖化力快速检测中的应用  

Application of Near Infrared Spectroscopy in Rapid Detection of Saccharification Power of Jiangxiang Daqu

作　　者：袁颉 毛育志 姚翠萍 焦富 罗汝叶 李巧玉 牟明月 YUAN Jie;MAO Yuzhi;YAO Cuiping;JIAO Fu;LUO Ruye;LI Qiaoyu;MOU Mingyue(Kweichow Moutai Co.Ltd.,Renhuai,Guizhou 564500;Guizhou Brewing Engineering Technology Research Center,Renhuai,Guizhou 564500,China)

机构地区：[1]贵州茅台酒股份有限公司,贵州仁怀564500 [2]贵州省酿酒工程技术研究中心,贵州仁怀564500

出　　处：《酿酒科技》2023年第12期110-113,共4页Liquor-Making Science & Technology

摘　　要：利用近红外漫反射光谱法获取酱香型大曲的近红外光谱,结合偏最小二乘法(PLS),建立酱香型大曲糖化力预测模型。该模型标准偏差SEC为20.2366,交互验证标准偏差SECV为22.0057,交互验证相关系数1-VR为0.7812。通过随机大曲样品对模型重复性与准确性检验,该模型平均相对误差为5.31%,表明该模型具有良好的预测能力,可用于酱香型大曲糖化力的快速检测。In this study,the prediction model of the saccharification power of Jiangxiang Daqu was established by near infrared spec-troscopy coupled with partial least squares.The standard deviation(SEC)of the model was 20.2366,the standard deviation of cross validation(SECV)was 22.0057,and the correlation coefficient of cross validation(1-VR)was 0.7812.The repeatability and accuracy of the model were evaluated by random samples.The average relative error of the model was 5.31%,indicating that the model had good prediction ability,and could be used for the rapid detection of the saccharification power of Jiangxiang Daqu.

关 键 词：近红外光谱 酱香型大曲 糖化力 快速检测 

分 类 号：TS262.3[轻工技术与工程—发酵工程] TS261.7[轻工技术与工程—食品科学与工程]