1. 中国农业大学食品科学与营养工程学院，北京 100083 2. 许昌学院化学化工学院，河南 许昌 461000 3. Afexa Life Sciences Inc. Edmonton, T6N 1G1, Canada
Research on Fast Discrimination between Panax Ginseng and Panax Quinquefolium Based on Near Infrared Spectroscopy
HUANG Ya-wei1, WANG Jia-hua2, LI Xiao-yun1, Jacqueline J Shan3, Lei Ling3, HAN Dong-hai1*
1. College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China 2. College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, China 3. Afexa Life Sciences Inc. Edmonton, T6N 1G1, Canada
Abstract：Near infrared spectroscopy combined with pattern recognition techniques were applied to develop a method of fast and nondestructive discrimination between Chinese ginseng and American ginseng. A total of 90 representative ginseng samples including root, fiber and powder were collected. NIR spectra of the samples were obtained directly with wrapped polyethylene packing film. MSC and first derivative were performed after the elimination of notable packing film absorbance in raw spectra. Then the informative wave bands were chosen by moving window partial least-squares regression method. PLS-DA, PCA-DA and SVM discrimination models were founded and their results were compared. SVM was proven to be the most effective method with 100% accurate identification rate for validation set. It indicates that the method founded is precise and convenient and can be practically used in practice for quality control and fast screening of raw herb materials.
黄亚伟1，王加华2，李晓云1，Jacqueline J Shan3，Lei Ling3, 韩东海1* . 基于近红外光谱的人参与西洋参的快速鉴别研究 [J]. 光谱学与光谱分析, 2010, 30(11): 2954-2957.
HUANG Ya-wei1, WANG Jia-hua2, LI Xiao-yun1, Jacqueline J Shan3, Lei Ling3, HAN Dong-hai1* . Research on Fast Discrimination between Panax Ginseng and Panax Quinquefolium Based on Near Infrared Spectroscopy . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2010, 30(11): 2954-2957.
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