Effect of Animal Age on the Relationships between Connective Tissue and Mechanical Properties of Natural Casings
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Accession number;04A0022355
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| Title;Effect of Animal Age on the Relationships between Connective Tissue and Mechanical Properties of Natural Casings |
| Author;
NISHIUMI TADAYUKI
(Niigata Univ., Fac. Agriculture, JPN)
HARA NAOKO
(Niigata Univ., Fac. Agriculture, JPN)
SUZUKI ATSUSHI
(Niigata Univ., Fac. Agriculture, JPN)
SAKATA RYOICHI
(Azabu Univ., Sch. of Vet. Med.)
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Journal Title;Shokuniku ni kansuru Josei Kenkyu Chosa Seika Hokokusho
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Journal Code:X0296A
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ISSN:
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VOL.21;NO.;PAGE.231-235(2003)
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| Figure&Table&Reference;FIG.1, TBL.1, REF.11 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Structure and arrangement of collagen fibers, thermal stability of collagen, collagen mature cross-link pyridinoline, and mechanical strength of lamb and sheep casings from New Zealand were investigated to elucidate the effect of animal age at slaughter on the relationships between connective tissue and mechanical properties of natural casings. Sheep casing was significantly tougher than lamb casing(P<0.01), which indicates that the toughness of casings increase with an increasing animal age. Sheep casing, compared to lamb casing, had a significant low heat-labile collagen content, low heat-solubility of collagen, and high pyridinoline concentration(P<0.01). In morphological study by scanning electron microscopy, the lattice arrangement of collagen fibers was almost similar in both casings, while the size of collagen fibers was somewhat larger in sheep than in lamb. Sheep casing was also thicker, resulting from composition of much more sheets organized of collagen fibers. These results suggest that the increasing thermal and structural stabilities of collagen with animal growth may contribute to the mechanical properties of casings. (author abst.) |
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