Studies on Normal and Mildewy Auricularia Auricular by Fourier Transform Infrared Spectroscopy
SHI You-ming1，LIU Gang2，SUN Yan-lin3, WEI Sheng-xian1, YAN Cui-qiong1
1. Department of Physics, Qujing Normal University, Qujing 655011, China 2. Department of Physics, Yunnan Normal University, Kunming 650092, China 3. Office of Science and Technology, Qujing Normal University, Qujing 655011, China
Abstract：In order to verify the capability of Fourier transform infrared spectroscopy in food safety, Fourier transform infrared spectroscopy (FTIR) was used to obtain the spectra of normal and mildewy auricularia auricula, The result showed the frequency of hydroxyl and aliphatic absorption band in their spectra had evident differentia, with the dispersion being 23.31 and 13.41 cm-1 respectively. The curve-fitting analysis was used for the fold peaks of hydroxyl and amido, and it presented that the content of hydroxyl and amido had evident change. The substances in the auricularia auricula generated chemical change, and Fourier transform infrared spectroscopy could show the differentia easily. The results show that Fourier transform infrared spectroscopy can provide valuable information about the auricularia auricula. It could be used as a reference method for identification of the normal and mildewy auricularia auricula.
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