利用近红外谷物分析仪快速检测青稞粗蛋白质含量研究  

Study on Content of Crude Protein of Highland Barley by Near Infrared Grain Analyzer

作　　者：张华瑜 潘永东 柳小宁 包奇军 ZHANG Huayu;PAN Yongdong;LIU Xiaoning;BAO Qijun(Institute of Economic Crops and Beer Materials,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730070,China)

机构地区：[1]甘肃省农业科学院经济作物与啤酒原料研究所

出　　处：《甘肃农业科技》2020年第1期33-36,共4页Gansu Agricultural Science and Technology

基　　金：国家大麦青稞产业体系遗传改良研究室种子扩繁与生产技术(CARS-05);国家自然基金项目“垄作沟灌栽培模式对啤酒大麦品质影响及调控机制”(31760358)

摘　　要：青稞粗蛋白含量的检测通常采用凯氏定氮分析法,费时、费力、成本高。利用定标的大麦模型预测青稞的粗蛋白含量,相关分析表明,近红外谷物分析仪与凯氏定氮仪的测定值间存在极显著的相关性,皮尔森相关系数达到0.976 9,回归分析建立的两者间的线性回归方程是y=1.023 7x-2.515 7(R^2=0.954 2)。利用近红外光谱分析技术检测青稞粗蛋白含量快速、准确、成本低,准确度和精密度均好。The method of kjeldahl nitrogen analysis is usually used to detect the content of crude protein in highland barley,which is time-consuming,laborious and costly. The calibrated barley model was used to predict the crude protein content of the barley. The correlation analysis showed that there was a very significant correlation between the measured values of the near-infrared grain analyzer and the kjeldahl nitrogen analyzer,and the pearson correlation coefficient was 0.976 9. The linear regression equation established by the regression analysis was y=1.023 7 x-2.5157(R^2=0.954 2). Nir spectroscopy is used to detect the content of barley crude protein quickly,accurately,with low cost and good accuracy and precision.

关 键 词：青稞 粗蛋白含量 近红外光谱分析技术 快速检定 方法 

分 类 号：S512.3[农业科学—作物学]