酿酒特需高粱真实性无损快速鉴别研究  

Non-destructive and rapid identification of authenticity of special-demand sorghum for Baijiu-brewing

作　　者：刘亚超 陈小雪[2] 程伟[3] 周艳 韩北忠[2] 李永玉[1] LIU Yachao;CHEN Xiaoxue;CHENG Wei;ZHOU Yan;HAN Beizhong;LI Yongyu(College of Engineering,China Agricultural University,Beijing 100083,China;College of Food Science and Nutritional Engineering,China Agricultural University,Beijing 100083,China;Sichuan Langjiu Group Co.,Ltd.,Luzhou 510500,China)

机构地区：[1]中国农业大学工学院,国家农产品加工技术装备研发分中心,北京100083 [2]中国农业大学食品科学与营养工程学院,北京100083 [3]四川郎酒集团有限责任公司,四川泸州510500

出　　处：《中国酿造》2021年第12期160-164,共5页China Brewing

基　　金：郎酒集团四川省古蔺郎酒厂有限公司项目(201905410611385)。

摘　　要：高粱作为酿造白酒的原料直接影响成品酒的品质,无损快速鉴别酿酒特需高粱的真实性是急需解决的重要问题。该研究针对高粱透光性差,近红外探头有效检测面积小,导致难以完全获取样品池中特需高粱和掺假高粱样品信息等问题,通过改良环形样品杯内径为略大于检测窗口直径的2倍,将高粱样品平铺于样品杯底部一层,解决了无法完全采集样品池中包括掺假高粱颗粒在内的所有样品信息等问题。结合化学计量学方法建立并优化了酿酒特需高粱真实性无损快速鉴别的近红外光谱模型,得到该模型的校正集、预测集和验证集的判别准确率分别为100%、100%和96.7%。Sorghum,as the raw material for Baijiu(Chinese liquor)production,directly affects the quality of the finished Baijiu,and it is an important problem to quickly identify the authenticity of the special sorghum for Baijiu production without damage.In this study,due to the poor light transmittance of sorghum and the small effective detection area of the near-infrared probe,it is difficult to completely obtain the information of specially needed sorghum and adulterated sorghum samples in the sample pool.By improving the inner diameter of the annular sample cup,which is slightly larger than the diameter of the detection window,the sorghum samples were tiled on the bottom layer of the sample cup,which solved the problem that all sample information including adulterated sorghum particles could not be collected completely in the sample pool.Combined with the method of stoichiometry,a nondestructive and rapid identification model of sorghum with special needs for Baijiu-brewing was established and optimized.The accuracy of calibration set,prediction set and verification set of the model were 100%,100%and 96.7%,respectively.

关 键 词：近红外光谱 无损 酿酒高粱 真实性 鉴别 

分 类 号：O657.61[理学—分析化学]