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当前位置: 首页 > 文章 > 近红外光谱对磨盘柿货架期的定性判别 食品科学 2013,34 (22) 185-188
Position: Home > Articles > Qualitative Identification of Mopan Persimmon Shelf-life by Near Infrared Spectroscopy FOOD SCIENCE 2013,34 (22) 185-188

近红外光谱对磨盘柿货架期的定性判别

作  者：
王丹;鲁晓翔;张鹏;陈绍慧;李江阔
单  位：
国家农产品保鲜工程技术研究中心;天津商业大学生物技术与食品科学学院
关键词：
近红外光谱;磨盘柿;货架期;判别;预测
摘  要：
通过近红外漫反射光谱技术对磨盘柿的货架期进行了定性判别,比较不同光谱预处理方法和不同波段,发现在1100~1800nm波段范围内,采用二阶导数结合标准正常化和去散射(SNVD)处理的光谱预处理方法最好。其判别模型的正确率达到95.4%,预测准确率达到93.3%。因此,近红外光谱技术对磨盘柿货架期的检测具有应用价值。
译  名：
Qualitative Identification of Mopan Persimmon Shelf-life by Near Infrared Spectroscopy
作  者：
WANG Dan;LU Xiao-xiang;ZHANG Peng;CHEN Shao-hui;LI Jiang-kuo;Tianjin Key Laboratory of Food Biotechnology,College of Biotechnology and Food Science,Tianjin University of Commerce;Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products,National Engineering and Technology Research Center for Preservation of Agricultural Products;
关键词：
near infrared spectroscopy;;Mopan persi mmon;;shelf-life;;discrimination;;forecast
摘  要：
Near-infrared spectroscopy was used for qualitative identification of Mopan persimmon shelf-life.Different spectral pre-treatment methods and different spectral ranges for the shelf-life of Mopan persimmon were compared.The best results of spectral pr etreatment were obtained by using secondary derivative model combined with standard normal variate and detrend(SNVD) in the wavelength range of 1100–1800 nm.The percentage of correct classif ication of samples by using the developed discriminant model was 95.4% with a forecast accuracy of 93.3%.Therefore,near-infrared spectroscopy is a useful technique to predict the shelf life of Mopan persimmon.

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