光谱学与光谱分析, 2012, 32 (3): 695, 网络出版: 2012-04-16  

拉曼光谱法结合薄层层析分析红酵母色素

Analysis of Pigments from Rhodotorula Glutinis by Raman Spectroscopy and Thin Layer Chromatography
作者单位
1 广西师范大学物理科学与技术学院, 广西 桂林541004
2 广西科学院生物物理实验室, 广西 南宁530003
3 东卡罗莱纳大学物理系, 美国 北卡罗莱纳, 27858-4353
摘要
利用薄层层析色谱法分离红酵母色素, 结果显示, 红酵母细胞能合成至少三种色素, 即β-胡萝卜素、 红酵母红素、 圆酵母红素; 采集三种色素的拉曼光谱, 光谱数据经过背景扣除、 基线校正、 三点平滑等方法预处理, 统计不同色素的平均光谱, 结果表明三种色素的CC拉曼位移不同, 并且β-胡萝卜素的拉曼位移最多, 红酵母红素和圆酵母红素的含量较多; 定量分析色素特征峰高比值, 各色素峰高比值差异不大, 峰高比值能用作参数, 为深入研究活体细胞内色素的相对含量提供参考。 以上结果表明, 拉曼光谱法结合薄层层析能够分析红酵母色素, 可以提供红酵母色素的丰富信息, 是研究色素的有效方法。
Abstract
The pigments from Rhodotorula glutinis were separated by using thin layer chromatography, and the result showed that Rhodotorula glutinis cells could synthesize at least three kinds of pigments, which were beta-carotene, torulene, and torularhodin. The Raman spectra based on the three pigments were acquired, and original spectra were preprocessed by background elimination, baseline correction, and three-point-smoothing, then the averaged spectra from different pigments were investigated, and the result indicated that Raman shift which represents CC bond was different, and the wave number of beta-carotene demonstrated the largest deviation, finally torulene and torularhodin in Rhodotorula glutinis had more content than beta-carotene. Quantitative analysis of Raman peak height ratio revealed that peak height ratio of pigments showed little difference, which could be used as parameters for further research on living cells, providing reference content of pigments. The above results suggest that Raman spectroscopy combined with thin layer chromatography can be applied to analyze pigments from Rhodotorula glutinis, provides abundant information about pigments, and serves as an effective method to study pigments.

袁玉峰, 陶站华, 王雪, 黎永青, 刘军贤. 拉曼光谱法结合薄层层析分析红酵母色素[J]. 光谱学与光谱分析, 2012, 32(3): 695. YUAN Yu-feng, TAO Zhan-hua, WANG Xue, LI Yong-qing, LIU Jun-xian. Analysis of Pigments from Rhodotorula Glutinis by Raman Spectroscopy and Thin Layer Chromatography[J]. Spectroscopy and Spectral Analysis, 2012, 32(3): 695.

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