Fourier transform infrared spectrometer, gas chromatograph and automatic amino acid analyzer were used to analyze the infrared spectrum, fatty acid and amino acid composition of the Capra Siberia horn. The results showed that the infrared spectrum mainly reflected the characteristic peak of the keratin composition, of which 1 540 cm-1, 1 653 cm-1, and 3 061 cm-1 were assigned to the amide components in the keratin molecule, with 1 454 cm-1, 2 875 cm-1, 2 963 cm-1 assigned to the lipid component. Ten kinds of fatty acid components were detected in Capra Siberia horn, including palmitic acid, oleic acid and sorbic acid, which accounted for 53.9% of the total fatty acids. Seventeen amino acids were also characterized with the total amount of 976.62 mg/g.
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