Abstract：Near infrared spectroscopy technique combined with chemometrics methods was applied to predict crystallinity of Neosinocalamus affinins. Three improved partial least squares (PLS) methods, including interval partial least squares (iPLS), synergy interval partial least squares (siPLS) and backward interval partial least squares (biPLS), were used to find the most informative ranges and build models with better predictive quality based on multiplicative scatter correction spectra. And then the models were compared with PLS model which was developed on the whole wavelength range 350~2 500 nm. The results showed that the models built by the three improved PLS methods had higher predictive ability than that of PLS model, and the optimal model was obtained by siPLS method that separated the whole spectra into 30 intervals and combined three intervals. The siPLS model had correlation coefficient (R) of 0.88 and root mean standard error of prediction (RMSEP) of 0.011 7. Therefore, through selecting the effective wavelength range, siPLS method could accurately and rapidly predict crystallinity in Neosinocalamus affinins.
Key words：Near infrared spectroscopy;Synergy interval partial least squares;Neosinocalamus affinins;Crystallinity
孙柏玲，刘君良*，柴宇博. 基于近红外光谱和偏最小二乘法的慈竹纤维素结晶度预测研究 [J]. 光谱学与光谱分析, 2011, 31(02): 366-370.
SUN Bai-ling, LIU Jun-liang*, CAI Yu-bo . Determination of Crystallinity in Neosinocalamus affinins Based on Near Infrared Spectroscopy and PLS Methods . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(02): 366-370.
[1] LIU Yun-fei, XUE Lian-feng, RUAN Xi-gen, et al(刘云飞, 薛联凤, 阮锡根, 等). Journal of Nanjing Forestry University(Natural Science Edition)(南京林业大学学报·自然科学版), 2006, 30(6): 66. [2] TANG Jin-gen, ZHANG Chun-xia(唐进根, 张春霞). Bamboo Research(竹类研究), 1991, (1): 22. [3] Via B K, Shupe T F, Groom L H, et al. Journal of Near Infrared Spectroscopy, 2003, 11(5): 365. [4] Taylor A M, Baek S H, Jeong M K, et al. Wood and Fiber Science, 2008, 40(2): 301. [5] YU Hua-qiang, ZHAO Rong-jun, FU Feng, et al(虞华强, 赵荣军, 傅 峰, 等). Journal of Northwest Forestry University(西北林学院学报), 2007, 22(5): 149. [6] Jones P D, Schimleck L R, Peter G F, et al. Wood Science and Technology, 2006, 40(8): 709. [7] DING Li, XIANG Yu-hong, HUANG An-min, et al(丁 丽，相玉红，黄安民，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2009, 29(7): 1784. [8] Via B K, Shupe T F, Stine M, et al. Holz Als Roh-Und Werkstoff, 2005, 63(3): 231. [9] Jones P D, Schimleck L R, Peter G F, et al. Wood Science and Technology, 2005, 39(7): 85. [10] WANG Yu-rong, QIN Dao-chun, REN Hai-qing, et al(王玉荣, 覃道春, 任海青, 等). Wood Processing Machinery(木材加工机械), 2007, 18(3): 34. [11] Jiang Zehui, Yang Zhong, So Chileung, et al. Journal of Wood Science, 2007, 53(5): 449. [12] Nφrgaard L, Saudland A J, Wagner J, et al. Applied Spectroscopy, 2000, 54: 413. [13] ZHOU Fang-chun(周芳纯). Bamboo Research(竹类研究), 1998, (1): 195.
