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Metabolic Discrimination of Safflower Petals of Various Origins Using 1H NMR Spectroscopy and Multivariate Statistical Analysis

机译:使用1H NMR光谱和多元统计分析对各种来源的红花花瓣进行代谢区分

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摘要

The metabolic discrimination of safflowers from various geographical origins was performed using 1H nuclear magnetic resonance (NMR) spectroscopy followed by principal components analysis.With a combination of these techniques,safflower samples from different origins could be discriminated using the first two principal components (PC) of the 1H NMR spectra of the 50% methanol fractions.PC1 and PC2 accounted cumulatively for 91.3% of the variation in all variables.The major peaks in the 1H NMR spectra that contributed to the discrimination were assigned to fatty acid (terminal CH3),lactic acid,acetic acid,choline derivatives,glycine,and safflower yellow derivatives.In this study,we suggest that various types of safflower can be discriminated using PCA and 1H NMR spectra.
机译:使用1H核磁共振(NMR)光谱和随后的主成分分析对来自不同地理来源的红花进行代谢鉴别。结合这些技术,可以使用前两个主要成分(PC)来区分来自不同来源的红花样品50%甲醇馏分的1H NMR谱图.PC1和PC2累计占所有变量变化的91.3%.1H NMR谱图中有助于区分的主要峰分配给脂肪酸(CH3末端),乳酸,乙酸,胆碱衍生物,甘氨酸和红花黄色衍生物。在这项研究中,我们建议使用PCA和1H NMR光谱可以区分各种类型的红花。

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