| 近红外光谱法检测果汁中的富马酸 |
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| 引用本文： | 唐长波,岳田利.近红外光谱法检测果汁中的富马酸[J].西北农业学报,2007,16(2):187-189. |
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| 作者姓名： | 唐长波 岳田利 |
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| 作者单位： | 西北农林科技大学食品科学与工程学院,陕西杨凌,712100 |
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| 基金项目： | 国家西部专项项目;国家科技攻关计划 |
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| 摘 要： | 应用傅立叶变换近红外光谱法测定40个果汁的近红外光谱数据,用OPUS/QUANT5.5定量分析软件将光谱与对应的化学成分值相关联,建立了果汁中富马酸的回归模型。富马酸含量近红外光谱分析模型的决定系数R2为97.53,交叉验证均方根RMSECV为0.00416。用该模型对10个未知样品进行了外部验证,外部验证的决定系数(R2)为99.1,均方差(RMSEP)为0.00294。内部交叉验证和外部验证均证明,近红外定量分析有较高的准确度,可应用于生产。
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| 关 键 词： | 近红外光谱 果汁 富马酸 |
| 文章编号： | 1004-1389（2007）02-0187-03 |
| 收稿时间： | 2006-09-29 |
| 修稿时间： | 2006-10-13 |
Analysis of Fumaric Acid in Apple Juice Concentrated by Near Infrared Spectroscopy |
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| TANG Chang-bo and YUE Tian-li.Analysis of Fumaric Acid in Apple Juice Concentrated by Near Infrared Spectroscopy[J].Acta Agriculturae Boreali-occidentalis Sinica,2007,16(2):187-189. |
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| Authors: | TANG Chang-bo and YUE Tian-li |
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| Institution: | College of Food Science and Engineering, Northwest A & F University, Yangling Shaanxi 712100, China;College of Food Science and Engineering, Northwest A & F University, Yangling Shaanxi 712100, China |
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| Abstract: | Near infrared reflectance spectroscopy has advantages of rapid determination,non-destruction,non-polluting and low cost.In the work,a mathematical prediction model of fumaric acid in apple juice concentrated with FT-NIR spectrometry was established.The determination coefficient(R2) of the model was 97.53 and its root mean square error(RMSE) was 0.00416 in cross validation,while the R2 and RMSE were 99.1 and 0.00294 in test set validation,respectively.This method was simple,rapid and accurate,it could be used to determine fumaric acid in apple juice concentrated. |
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| Keywords: | Near infrared reflectance spectroscopy Apple juice Fumaric acid |
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