基于生姜炮制品研究和GC-MS验证的气味分析仪应用性探讨

Applicability of odor analyzer based on study of processed ginger products and GC-MS validation

HeraclesⅡ快速电子气味分析仪因其可以将样品中的挥发性物质与“气味”建立联系,逐渐被应用于中药“气味”研究中,但其适用度并不十分明朗。该文基于生姜3种炮制品干姜、炮姜、姜炭的挥发性化学成分研究,用气相-质谱联用技术验证HeraclesⅡ快速电子气味分析仪定性准确性及其适用范围。采用气相-质谱联用技术和HeraclesⅡ快速电子气味分析仪对不同产地的10批生姜各炮制品中的成分进行检测,运用主成分分析(PCA)和判别因子分析(DFA),考察产地及炮制程度对干姜、炮姜、姜炭的影响。实验结果显示,炮制程度对各炮制品有较大影响,产地因素对炮制品影响较小。同时,HeraclesⅡ快速电子气味分析仪和气质联用分别检测到42、45种化合物,其中共有化合物29种,重合度64.4%,表明快速电子气味分析仪相较于气质联用在定性方面有一定的可参考性。结合此气味分析仪方便快捷、处理数据准确高效的特点,在以挥发性物质进行整体评价为目的的“气味”研究中有一定的优势,并在中药及其炮制品的质量控制方面有着良好的应用前景。

Heracles Ⅱ rapid electronic odor analyzer has been gradually applied in the study on the "odor" of Chinese medicine because of its ability to associate volatile substances in the sample with "odor", but its applicability is not clear. In this article, processed ginger products--dried ginger, roasted ginger, and carbonized ginger were chosen as examples to study the volatile chemical components, and the applied scope and accuracy of Heracles Ⅱ rapid electronic odor analyzer were verified by gas chromatography-mass spectrometry(GC-MS). Components in ten batches of ginger from different producing places were detected by GC-MS and Heracles Ⅱ rapid electronic odor analyzer. Principal component analysis(PCA) and discriminant factor analysis(DFA) were performed to investigate the effects of producing place and processing degree on dried ginger, roasted ginger, and carbonized ginger. The results showed that the processing degree had significant impact on the processed ginger products, while producing place was not significant to the processed ginger products. At the same time, 42 and 45 compounds were detected by Heracles Ⅱ rapid electronic odor analyzer and GC-MS, respectively, of which 29 compounds were common detected, with a coincidence rate of 64.4%. This result indicated that compared with GC-MS, Heracles Ⅱ rapid electronic odor analyzer had certain referential value in the qualitative analysis. Heracles Ⅱ rapid electronic odor analyzer, with the characteristics of convenience, high efficiency, and accuracy in processing data, has certain advantages in the "odor" research aiming to comprehensively evaluate volatile substances, and has a good application prospect in the quality control of Chinese medicine and its processed products.