Analyzing the Similarity of Different Growing Areas in Red Sun-Cured Tobacco by Using Near Infrared Spectroscopy or Chemical Data
MA Li1, LI Xue-ying2, DU Guo-rong1, DING Rui3, WANG Yun-bai3, MA Yan-jun1*, LI Jun-hui2*
1. Beijing Working Station, Technical Center of Shanghai Tobacco Group Corp. Ltd., Beijing 101121, China
2. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
3. Quality and Safety Research Center, Institute of Tobacco Research of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
Abstract：Near infrared spectroscopy is a comprehensive information collection material, composite information of various substances, but the specific feature is not obvious; the chemical index can reflect the specific characteristics of the material, but the material information is not comprehensive enough. In this paper, total of 115 red sun-cured tobacco samples in 2012 and 2013 were tested, which were from Guizhou, Hunan, Jilin, Jiangxi, Shandong, Sichuan. After near infrared spectroscopy was processed by the first derivative and SG smooth and 26 items of chemical data and 26 items of calculated data (for example, ratio of sugar to nicotine, etc.) were normalized, the PPF (Projection of Basing on Principal Component and Fisher Criterion) projection method was used to analyze the similarity and substitution of growing areas in red sun-cured tobacco. Combined with the analysis of near infrared spectroscopy and chemical indicators, the results showed that the similarity analysis result by using near infrared spectroscopy is in basic agreement with the result by using chemical data, which means two methods can both analyze the similarity of growing areas. Nitrosamines would determine the growing areas as an important indicator by analyzing the variance contribution rate of 52 test data. The similarity of small areas was analyzed by used near infrared spectroscopy and the result was that the part of different small areas can be replaced. Application of near infrared spectroscopy technology can quickly and accurately analyze the similarity and substitution of different growing areas. Combining chemical data can be used to analyze its intrinsic characteristics, which can play an important role in the scientific exploitation of tobacco raw materials.
Key words：Red sun-cured tobacco; Near infrared spectroscopy; Chemical data; Similarity
马 莉，李雪莹，杜国荣，丁 睿，王允白，马雁军，李军会. 应用近红外光谱或化学指标判别不同产地晒红烟的相似性[J]. 光谱学与光谱分析, 2018, 38(08): 2407-2411.
MA Li, LI Xue-ying, DU Guo-rong, DING Rui, WANG Yun-bai, MA Yan-jun, LI Jun-hui. Analyzing the Similarity of Different Growing Areas in Red Sun-Cured Tobacco by Using Near Infrared Spectroscopy or Chemical Data. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(08): 2407-2411.
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