| 黑宝石李品质参数的近红外漫反射无损检测模型的建立 |
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| 引用本文： | 蔡宋宋,王宝刚,冯晓元,李文生,杨军军,王纪华. 黑宝石李品质参数的近红外漫反射无损检测模型的建立[J]. 食品工业科技, 2010, 0(1) |
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| 作者姓名： | 蔡宋宋 王宝刚 冯晓元 李文生 杨军军 王纪华 |
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| 作者单位： | 1. 北京市农林科学院林业果树研究所,北京,100093
2. 北京农产品质量检测与农田环境监测技术研究中心,北京,100097 |
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| 基金项目： | 北京市科委资助项目(Z09090501040901); 北京市农林科学院青年科研基金资助项目 |
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| 摘 要： | 以黑宝石李为试材,研究其品质参数的近红外漫反射无损检测模型的建立方法,并从数学建模算法、导数处理及测试部位等方面优化模型。结果表明,改进偏最小二乘法结合一阶导数处理建立分析模型的定标效果相对较好,其中可溶性固形物(SSC)和干物质/水分模型的定标系数达0.9;四个测试部位光谱混合所建模型的预测精度显著高于单独测试部位光谱模型;SSC、干物质/水分的定标与预测的决定系数、均方根误差和相对分析误差分别在0.9、0.45和3.0左右,预测效果很好;而可滴定酸的预测误差偏大。
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| 关 键 词： | 李 近红外 可溶性固形物 可滴定酸 干物质 水分 |
Establish of nondestructive measurement model of quality parameters of plum by near-infrared diffuse reflectance |
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| CAI Song-song,WANG Bao-gang,FENG Xiao-yuan,LI Wen-sheng,YANG Jun-jun,WANG Ji-hua. Establish of nondestructive measurement model of quality parameters of plum by near-infrared diffuse reflectance[J]. Science and Technology of Food Industry, 2010, 0(1) |
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| Authors: | CAI Song-song WANG Bao-gang FENG Xiao-yuan LI Wen-sheng YANG Jun-jun WANG Ji-hua |
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| Affiliation: | CAI Song-song1,WANG Bao-gang1,FENG Xiao-yuan1,LI Wen-sheng1,YANG Jun-jun1,WANG Ji-hua2(1.Institute of Forestry , Pomology,Beijing Academy of Agriculture , Forestry Sciences,Beijing 100093,China,2.Beijin Research Center for Agrifood Testing , Farml, Monitoring,Beijing 100097,China) |
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| Abstract: | A method to predict quality parameters in plum by near-infrared(NIR)spectroscopy was developed.And the calibration model was also optimized by comparing different regression techniques,derivative treatments,scatter and standard treatments.Results showed that the NIR calibration model constructed by modified partial least squares combining with first derivative treatment was proved to be good,and the coefficients of determination of calibration model for soluble solids content and dry matter/moisture were bo... |
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| Keywords: | plum near-infrared soluble solids content titratable acid dry matter moisture |
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