| 稻米淀粉崩解值的近红外透射光谱法测定 |
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| 引用本文： | 谢新华,李晓方,肖昕. 稻米淀粉崩解值的近红外透射光谱法测定[J]. 光谱实验室, 2009, 26(3) |
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| 作者姓名： | 谢新华 李晓方 肖昕 |
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| 作者单位： | 河南农业大学食品科学技术学院,郑州市文化路95号,450002;广东省农业科学院水稻研究所,广州市金颖东一街3号,510640;广东省农业科学院水稻研究所,广州市金颖东一街3号,510640 |
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| 基金项目： | 广东省自然科学基金重点项目，河南农业大学博士基金 |
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| 摘 要： | 以203份稻米为样品,近红外透射光谱分析仪,对样品进行光谱扫描,并用快速粘度分析仪测定稻米淀粉崩解值.采用改进的偏最小二乘法进行定标模型的建立,得到了稻米淀粉崩解值测定的近红外分析模型的定标标准偏差(SEC)、交叉检验标准误差(SECV)和定标决定系数(RSQ)分别为:10.62、10.8和0.984,内部交叉验证的经校正的工作标准差(SEP)、检验偏差(BIAS)和交叉检验相关系数(1-VR)分别为:6.139、-0.362和0.939,相关性达极显著水平.内部交又验证和外部验证结果表明近红外定量分析崩解值有很高的准确度.近红外透射光谱技术为快速准确无损测定黏滞特性指标提供了一条新途径.
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| 关 键 词： | 近红外透射光谱 稻米淀粉 崩解值 |
Near-Infrared Transmittance Measuring for Breakdown of Rice Starch |
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| XIE Xin-Hua,LI Xiao-Fang,XIAO Xin. Near-Infrared Transmittance Measuring for Breakdown of Rice Starch[J]. Chinese Journal of Spectroscopy Laboratory, 2009, 26(3) |
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| Authors: | XIE Xin-Hua LI Xiao-Fang XIAO Xin |
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| Affiliation: | College of Food Science Technology;Henan Agricultural University;Zhengzhou 450002;P.R.China;Rice Research Institute of Guangdong Academy of Agriculture Science;Guangzhou 510640;P.R.China |
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| Abstract: | The 203 samples of rice were scanned by foss tecator infratec 1255,and their breakdown were determined by using RVA(Rapid Visco Analyzer).Several mathematics treatments to the sample spectra and several different regression methods were adopted to optimize a good calibration equation for determination of breakdown of rice.The standard error of calibration(SEC),standard error of cross-validation(SECV)and regression squared(RSQ)of the calibration selected were 10.62,10.8 and 0.984.The Corrected standard error... |
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| Keywords: | Near Infrared Transmittance Spectroscoy Rice Starch Breakdown |
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