鱼腥草植株不同部位的红外光谱分析

Infrared Spectrum Analysis of Different Parts of Houttuynia cordata

摘要: 本文利用傅里叶变换红外光谱法(Fourier Transform Infrared Spectrometry, FTIR)研究了鱼腥草植株的不同部位所含有效成分的差异。结果显示，鱼腥草的成分为挥发油、蛋白质、多糖、脂肪、羧酸、纤维素物质，其蛋白质、多糖的含量是根 > 茎 > 叶，挥发油含量是根 > 茎。在二阶导数光谱中根、茎、叶三个部位的差异更大，所含的芳香化合物物质不同。因此，红外光谱技术结合二阶导数谱法，对光谱中的吸收峰进行分析，能够全面、快速的分析鱼腥草植株的化学成分，为鱼腥草的科学利用提供一定的参考。

Abstract: Fourier Transform Infrared Spectrometry (FTIR) was used to study the difference of active ingre-dients in different parts of Houttuynia cordata. The results showed that the constituents of Houttuynia cordata were volatile oil, protein, polysaccharide, fat, carboxylic acid and cellulose. The content of protein and polysaccharide was root > stem > leaf, and the content of volatile oil was root > stem. In the second derivative spectra, the differences of root, stem and leaf are greater, and the aromatic compounds are different. Therefore, infrared spectroscopy combined with second derivative generalization to analyze the absorption peak in the spectrum, which can analyze the chemical composition of Houttuynia cordata comprehensively and rapidly to provide some reference value for the scientific utilization of Houttuynia houttuyniae.