光谱学与光谱分析 |
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In Situ Research on Ginger Oil Cell with Raman |
SI Min-zhen1,2, ZHANG De-qing1,2, LI Lun1,2, ZHANG Chuan-yun1,2 |
1. Key Laboratory of Molecular Spectroscopy, Colleges and Universities in Yunnan Province, Chuxiong Normal University, Chuxiong 675000, China 2. Application Institute of Spectroscopy Technology, Chuxiong Normal University, Chuxiong 675000, China |
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Abstract This article presents a novel and original approach to analyze the main components of the essential oils in ginger oil cell by means of Raman spectroscopy. Fresh ginger sample was prepareed with free-hand section. Under the DXR Laser confocal micro Raman spectrometer, the oil cell has 20 objective lens. As to the ginger oil cell, the Raman spectrum, all together 21 spectroscopic bands, was obtained. It has been found that the obtained Raman spectrums at different oil cells are very similar. The Raman spectrum of the commercial essential oils of ginger, together 37 spectroscopic bands, was obtained. It has been found that the 19 presented spectroscopic bands of ginger oil cell correlate very well with those obtained by the commercial essential oils. Density Functional Theory (DFT) of zingiberene calculations were performed in order to interpret the spectra of the essential oils of the ginger oil cell and essential oils of ginger. There are 31 spectroscopic bands of the essential oils of ginger, and 19 spectroscopic bands of ginger oil cell correlate very well with calculations. All these investigations are helpful tools to generate a fast and easy method to control the quality of the essential oils with Raman spectroscopic techniques in combination with DFT calculations.
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Received: 2015-08-16
Accepted: 2015-12-18
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Corresponding Authors:
SI Min-zhen
E-mail: siminzhen@cxtc.edu.cn
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