| 近红外光谱法在燕麦和苦荞膳食纤维含量分析中的应用 |
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| 引用本文： | 马续莹,张卓勇.近红外光谱法在燕麦和苦荞膳食纤维含量分析中的应用[J].首都师范大学学报(自然科学版),2011,32(5):30-33. |
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| 作者姓名： | 马续莹 张卓勇 |
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| 作者单位： | 首都师范大学化学系,北京,100048 |
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| 基金项目： | 北京市属高等学校人才强教计划资助项目(PHR20100718) |
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| 摘 要： | 应用近红外光谱漫反射技术,采用偏最小二乘法和留一全交叉验证方法对燕麦和苦荞样品中膳食纤维的含量进行预测.对光谱波长和信号预处理方法进行了优化.剔除异常值后得到实验值和本方法预测值的相关系数达到0.9272.结果表明,采用近红外光谱漫反射方法能够对燕麦、苦荞其它食品中膳食纤维含量进行快速定量或半定量分析.
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| 关 键 词： | 近红外光谱法 膳食纤维 偏最小二乘法 留一法 |
Application of Near Infrared Diffuse Reflection Spectrometry in Predicting Dietary Fiber in Oat and Buckwheat |
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| Ma Xuying,Zhang Zhuoyong.Application of Near Infrared Diffuse Reflection Spectrometry in Predicting Dietary Fiber in Oat and Buckwheat[J].Journal of Capital Normal University(Natural Science Edition),2011,32(5):30-33. |
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| Authors: | Ma Xuying Zhang Zhuoyong |
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| Institution: | Ma Xuying Zhang Zhuoyong*(Department of Chemistry,Capital Normal University,Beijing 100048) |
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| Abstract: | Dietary fiber in oat and buckwheat was determined by near infrared(NIR) diffuse reflection based on a partial least-squares(PLS) model which is cross-validated using leave-one-out(LOO) method.The spectral wavelength range and preprocessing method were optimized.After deletion of 9 outliers based on statistical criteria,correlation coefficient of 0.9272 between the predicted and experimental values was obtained.Results showed that NIR technique can be used for fast quantitative and semi-quantitative analysis... |
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| Keywords: | near-infrared spectrometry dietary fiber partial least squares leave-one-out |
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