大灵猫、小灵猫的直针毛红外光谱比较研究

The Infrared Spectrum Compared Study of Analysis of Viverra zibetha and Viverricula indica Straight Guard Hair

为了研究动物毛发的红外光谱学特征在动物分类中的应用。使用傅立叶红外光谱(FTIR)对大灵猫和小灵猫的毛发进行了检测和分析。结果表明:2种动物同一根直针毛从毛尖到毛根不同部位间红外图谱存在差异,说明毛发的不同部位都有受同一基因表达控制的角蛋白成份存在,但数量存在差异。2种动物直针毛中部的红外图谱具有明显的种间差异,主要表现在626～655cm波数范围内大灵猫、小灵猫红外图谱在峰面积和峰值均有明显差异;大灵猫具有异构角蛋白构型,在640.3cm和646.1cm位置出现了N-H-基团的伸缩振动M形吸收峰。所以红外光谱是一种检测和分析动物毛发的有效的技术手段,在野生的动物的分类研究中有较好的应用前景。

To study the infrared spectrum application of animal ＇ s hair on species classification.The Viverra zi betha and Viverricula indica straight guard hairs have been observed by FTIR（Fourier Transform Infrared Spectroscopy）.The results showed that the straight guard hair infrared spectrum had obvious difference from hair point to hair root,which indicated the same keratin that was controlled by identical gene existed in differ ent part and the amount of keratin was different in different part.The FTIR of Viverra zibetha and Viverricula indica straight guard hairs middle part had distinct interspecific difference for the peak area and strong peak ＇ s point of the Viverra zibetha and Viverricula indica straight guard hairs ＇ FTIR were clearly different in the range of 626-655 cm.The stretching vibration M-shaped adsorption peak of N-H group at 640.3 cm and 646.1 cm showed that isomerism keratin existed in the Viverra zibetha.FTIR analysis hold better applied fore ground in the detection and analysis of animal hairs and it could be provided for wildlife taxonomy and identification.