Determination of Chlorogenic Acid, Rutin, Scopoletin and Total Polyphenol in Tobacco by Fourier Transform Near Infrared Spectroscopy
LENG Hong-qiong1, 2, GUO Ya-dong1, LIU Wei2, ZHANG Tao2, DENG Liang1*, SHEN Zhi-qiang1
1. School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China 2. Yunnan Academy of Tobacco Science, Kunming 650106, China
Abstract：The objective of the present study was to investigate the feasibility of predicting chlorogenic acid, rutin, scopoletin and total polyphenol in tobacco by Fourier transform near-infrared (FT-NIR) spectroscopy. The partial least squares(PLS) regression method, second derivative and Norris derivative filter were applied in the NIR spectroscopy prediction of chlorogenic acid, rutin, scopoletin and total polyphenol in the range of 7 500 to 4 000 cm-1. For chlorogenic acid, rutin, scopoletin and total polyphenol, the determination coefficients were 0.976 6, 0.941 9, 0.957 1 and 0.966 6, respectively. The SEP/SEC values for them were <1.2, and the SD/SEP values for them were >2. The root mean square error of cross validation (RMSECV) of the four calibration models were 1.938 9, 1.046 2, 0.047 9 and 2.745 2, respectively. NIR spectroscopy was compared with the conventional methods. The results show that the two methods showed no significant difference at the significant level of 0.05. NIR spectroscopy technology can accurately analyze chlorogenic acid, rutin, scopoletin and total polyphenol in tobacco.
[1] Martin K A. Applied Spectroscopy Reviews, 1992, 27(4): 325. [2] DAI Chuan-yun, GAO Xiao-yan, TANG Bo, et al(戴传云, 高晓燕, 汤 波, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2010, 30 (2): 358. [3] Shinzawa J, Jing J H, Ritthiruangdej P, et al. Journal of Chemometrics, 2006, 20: 436. [4] Gributs C E W, Burns D H . Chemometrics and Intelligent Laboratory Systems, 2006, 83: 44. [5] QIU Jun, WANG Yun-bai, ZHANG Huai-bao, et al(邱 军, 王允白, 张怀宝, 等). Chinese Journal of Analytical Chemistry(分析化学), 2006, 34 (4): 588. [6] JIANG Jin-feng, LI Li, ZHAO Ming-yue(蒋锦锋, 李 莉, 赵明月). Journal of China Tobacco(中国烟草学报), 2006, 12(2): 8. [7] QIU Jun, WANG Yun-bai, FU Qiu-juan, et al(邱 军, 王允白，付秋娟，等). Tobacco Science(烟草科技), 2006, (2): 31. [8] LIU Yang, PANG Dai-wen, CHEN Zu-gang, et al(刘 扬, 庞代文, 陈祖刚, 等). Success and Challegess of Analytical Chemistry(分析化学的成就与挑战). Chongqing: Southwest Normal University Press(重庆：西南师范大学出版社), 2000. 1167. [9] WANG Dong-dan, WU Yu-ping, ZHAO Li(王东丹，吴玉萍，赵 丽).Tobacco Scientific Research(烟草科学研究), 2003, (4): 96. [10] CHU Xiao-li(褚小立). Molecular Spectroscopy Analytical Technology Combined with Chemometrics and Its Applications(化学计量学方法与分子光谱分析技术). Beijing: Chemical Industry Press(北京：化学工业出版社), 2011. 77.
