Abstract
Collagen was extracted from the antler velvet of elk (Cervus elaphus). Two types of collagen were prepared namely, acetic acid-soluble collagen and pepsin-soluble collagen. The electrophoretic patterns of both of the collagens showed that they were heterotrimeric, i.e. they consisted of α1α2α3. The total yield of the collagen obtained from the elk antler velvet was 12.1%. Amino acid analysis of the collagen by high-performance liquid chromatography showed that imino acid content such as that of proline and hydroxyproline was high, which might contribute to better visco-elastic properties. The peptide mapping of the collagens showed their similarity with porcine Type I collagen, thereby suggesting that the primary structure of both collagens is identical to that of porcine skin Type I collagen. The thermal denaturation temperature was 37°C, which is comparable to porcine Type I collagen and may also be as a result of high imino acid content.
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