| 大豆油脂过氧化值的近红外光谱分析 |
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| 引用本文： | 王立琦,张礼勇,朱秀超.大豆油脂过氧化值的近红外光谱分析[J].食品科学,2010,31(6):205. |
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| 作者姓名： | 王立琦 张礼勇 朱秀超 |
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| 作者单位： | 哈尔滨理工大学测控技术与通信工程学院;哈尔滨商业大学计算机与信息工程学院; |
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| 摘 要： | 首先采用碘量法测定油脂样品的过氧化值作为校正值,再使用近红外光谱仪采集油脂样品的光谱数据。在油脂过氧化值的定量分析中建立3种校正模型,对比分析偏最小二乘回归(PLS)、多元线性回归(MLR)和主成分回归(PCR)的性能,确定最优模型为PLS。使用PLS测定油脂过氧化值的性能结果为:校正集的相关系数0.916,预测集的相关系数0.922。
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| 关 键 词： | 近红外光谱 大豆油脂 过氧化值 |
Near-infrared Spectroscopic Analysis of Peroxide Value of Soybean Oil |
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| WANG Li-qi,ZHANG Li-yong,ZHU Xiu-chao.Near-infrared Spectroscopic Analysis of Peroxide Value of Soybean Oil[J].Food Science,2010,31(6):205. |
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| Authors: | WANG Li-qi ZHANG Li-yong ZHU Xiu-chao |
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| Affiliation: | WANG Li-qi1,ZHANG Li-yong1,*,ZHU Xiu-chao2(1.School of Measurement-Control Tech , Communications Engineering,Harbin University of Science , Technology,Harbin 150086,China,2.School of Computer , Information Engineering,Harbin University of Commerce,Harbin 150028,China) |
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| Abstract: | In this study,peroxide values of 255 soybean oil samples measured by iodimetric assay were used for calibration and near-infrared spectral data of these samples were collected.In the quantitative analysis of peroxide value,three models were established using partial least squares regression(PLS-regression),multiple linear regression(MLR) and principal component regression(PCR).Comparative analysis indicated that among the established models,PLS-regression model exhibited the best reliability in predicting p... |
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| Keywords: | near-infrared spectroscopy soybean oil peroxide value |
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