Rapid identification and quantification three chicken-wing woods of Millettia leucantha, Millettia laurentii and Cassia siamea by FT-IR and 2DCOS-IR
Rapid identification and quantification three chicken-wing woods of Millettia leucantha, Millettia laurentii and Cassia siamea by FT-IR and 2DCOS-IR
复制标题
利用 FT-IR 和 2DCOS-IR 快速鉴定和定量白花鸡血藤、鸡血藤和决明三种鸡翅木
DOI：
10.1016/j.molstruc.2018.04.037
复制
发表时间：
2018-08-15
影响因子：
3.8
通讯作者：
Huang, An-min
中科院分区：
文献类型：
--
作者：
Ma, Fang;Huang, An-min
鸡翅木属于红木，来自三种树木的心材，分别是白木香、劳伦提和华山松。本研究采用三步红外光谱宏观指纹图谱技术对三种鸡翅木材进行了鉴别。虽然三种鸡翅木非常相似，但通过傅立叶变换红外光谱(FT-IR)发现了化学成分的一些差异。其中，白木耳和劳伦提木质素含量较高，木质素含量较高。此外，银杏和雪莲在1328和782 cm(-1)处有两个峰，属于草酸钙。提出了一种有效的预测纤维素含量的建模方法。结果表明，三种植物的纤维素含量分别为45.84%、40.92%和38.85%。根据二维相关红外光谱(2DCOS-IR)，可选择1250-1800 cm(-1)范围内的自峰数目、位置和强度作为鉴别三种鸡翅木的指标。(C)2018爱思唯尔B.V.保留所有权利。
The chicken-wing wood belongs to "hongmu", which comes from the heartwood of three kinds of trees, M. leucantha, M. laurentii and C siamea. In this study, tri-step infrared spectroscopy macro-fingerprinting technique was employed to discriminate the three chicken-wing wood. Though three chicken-wing woods are extremely similar, some differences in chemical components emerged through Fourier Transition Infrared (FT-IR) spectra. Among them, M. leucantha and M. laurentii are cellulose-rich, while C siamea is lignin-rich. Besides, M. leucantha and C siamea have two peaks at 1328 and 782 cm(-1) belonging to calcium oxalate. An effective modeling approach to predict the content of cellulose was proposed. The result shows that cellulose content of M. leucantha, M. laurentii and C siamea were 45.84%, 40.92% and 38.85% respectively. According to Two-dimensional correlation infrared spectra (2DCOS-IR), number, position and intensity of auto-peaks in the range of 1250-1800 cm(-1) could be selected as the indicator to identify the three chicken-wing woods. (C) 2018 Elsevier B.V. All rights reserved.