Abstract
Collagen from tendon of Yezo sika deer was prepared by limited pepsin digestion. The yield of collagen was very high; 35.7% on the basis of lyophilized dry weight. The secondary structure of this collagen was different from that of porcine skin by ATR-FTIR analysis, although it was the same characteristics, e.g. SDS-PAGE, subunit composition, ther-mal behavior, as porcine collagen. Since taking up a problem of bovine spongiform encephalopathy infection in land animals such as calf or bovine, collagen from aquatic materials has been used in various industries. However, the present study indicates that tendon of Yezo sika deer as by-product of meat industry will have potential as an important collagen source for use in the foods, cosmetics, and medical fields.
Highlights
The collagens are a family of proteins found in most animal tissues, where they play various important structural roles as intracellular matrix constituents
Since taking up a problem of bovine spongiform encephalopathy infection in land animals such as calf or bovine, collagen from aquatic materials has been used in various industries
The outbreak of bovine spongiform encephalopathy (BSE), transmissible spongiform encephalophathy (TSE), the foot-and-mouth disease (FMD), and avian influenza have resulted in anxiety among users of collagen and collagen-derived products from these land animals [1]
Summary
The collagens are a family of proteins found in most animal tissues, where they play various important structural roles as intracellular matrix constituents. Type I collagen, which consists of two α1 polypeptide chains and one α2, is a prevalent protein in bone, skin, and tendon. The outbreak of bovine spongiform encephalopathy (BSE), transmissible spongiform encephalophathy (TSE), the foot-and-mouth disease (FMD), and avian influenza have resulted in anxiety among users of collagen and collagen-derived products from these land animals [1]. As a part of a study looking at the effective use of underutilized resources, we tried to prepare and characterize the collagens from aquatic organisms [2-11]. A large quantity of collagen could be obtained from these aquatic organisms, the physical and chemical properties of these collagens were different from those of land animals such as porcine
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