| 黄酒总糖含量的中红外光谱定量检 |
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| 引用本文： | 沈飞,应义斌,孙颀,胡建刚. 黄酒总糖含量的中红外光谱定量检[J]. 农业机械学报, 2009, 40(Z1): 143-145 |
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| 作者姓名： | 沈飞 应义斌 孙颀 胡建刚 |
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| 作者单位： | 1. 浙江大学生物系统工程与食品科学学院,杭州,310029
2. 国家黄酒产品质量监督检验中心,绍兴,312071 |
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| 基金项目： | 国家杰出青年科学基金资助项目 |
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| 摘 要： | 利用中红外光谱技术对黄酒中的总糖含量进行了快速检测.实验以3个厂家的共30个样品为研究对象,在1000～1500cm-1和2500～3000cm-1波段范围内建立了多元线性回归、主成分回归以及偏最小二乘回归模型,并比较了微分的光谱预处理方法对模型精度的影响.二阶微分光谱建立的偏最小二乘模型的精度最佳,交互验证的相关系数为0.984,RMSECV为0.765g/L, RPD为5.75,表明中红外光谱技术可以用于黄酒中总糖含量的快速检测.
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| 关 键 词： | 总糖 黄酒 中红外光谱 |
of Total Sugar Content in Chinese Rice Wine by Mid-infrared Spectroscopy |
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| Shen Fei Ying Yibin Sun Qi Hu Jian'gang. of Total Sugar Content in Chinese Rice Wine by Mid-infrared Spectroscopy[J]. Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(Z1): 143-145 |
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| Authors: | Shen Fei Ying Yibin Sun Qi Hu Jian'gang |
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| Affiliation: | 1.College of Biosystems Engineering and Food Science;Zhejiang University;Hangzhou 310029;China2.National Center for Quality Supervision and Testing of Rice Wine;Shaoxing 312071;China |
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| Abstract: | Mid-infrared spectroscopy combined with chemometrics was used to determine total sugar content in Chinese rice wine.A total of 30 samples were collected.Calibration models were developed in the range of 1 000 cm-1 to 1 500 cm-1 and 2 500 cm-1 to 3 000 cm-1 to exclude the influence of water absorption.Stepwise multiple regression(SMLR),principal component regression(PCR) and partial least squares regression(PLSR) were used to develop the models in TQ analyst software.And derivative pretreatment method was us... |
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