中红外光谱法测定烟草中的木质素  

Determination of Lignin in Tobacco by Mid-infrared Spectroscopy

作　　者：吴舜[1] 楼宏铭[1,2] 莫贤科 孔浩辉[3] 黄翼飞[3] 王华[3] 邱学青[1,2] 

机构地区：[1]华南理工大学化学与化工学院,广州市天河区五山路381号510641 [2]华南理工大学制浆造纸工程国家重点实验室,广州市天河区五山路381号510641 [3]广东中烟工业有限责任公司

出　　处：《烟草科技》2014年第10期67-70,共4页Tobacco Science & Technology

摘　　要：采用中红外光谱技术建立了一种原位快速测定烟草木质素含量的方法，并分别测定了烟梗粉和烟叶粉的木质素含量。利用烟草木质素在1508 cm-1的吸收峰建立了烟草木质素的标准曲线。结果表明：标准曲线的拟合决定系数为0.9914；利用该方法测定的“双喜”特色优质白肋烟B1F烟梗粉和烟叶粉的木质素含量分别为2.45%和1.21%，相对标准偏差分别为3.88%和4.17%，平均加标回收率在96.96%-106.01%之间；该方法操作简便，重现性好，能快速测定烟草中的木质素含量。An in situ method for rapidly determining the lignin content in tobacco was developed with mid-infrared （MIR） spectrometry, and the lignin contents in ground tobacco stem and leaf were separately determined by this method. The calibration curve of the lignin content in tobacco was obtained on the basis of absorption peak area of lignin at 1508 cm-1 with determination coefficient of 0.9914. The results showed that the lignin contents in the ground stem and leaf of B1F burley tobacco in“Shuangxi”brand were 2.45% and 1.21% with the relative standard deviations of 3.88% and 4.17%, respectively. The average recoveries of this method ranged from 96.96% to 106.01%. With good reproducibility, this method is simple in operation and rapid for determining the lignin content in tobacco.

关 键 词：烟草 木质素 中红外光谱 标准曲线法 定量分析 

分 类 号：TS411.1[农业科学—烟草工业]