| Species characterization of animal by muscle composition analysis I. The contents of histidine dipeptides in muscle from various species |
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Myoung-heon Lee1, Sang-keun Kim1, Gab-soo Jung2, Jong-myoung Park2 |
1College of Veterinary Medicine, Chungnam National University
2National Veterinary Research and Quarantine Service |
| 근육조성에 따른 축종특이성 구명 I. 축종별 근육중 Histidine dipeptides 함량 |
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이명헌1, 김상근1, 정갑수2, 박종명2 |
1충남대학교 수의과대학
2국립수의과학검역원 |
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| Abstract |
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The contents of histidine dipeptides, a metabolic products of muscle protein, were investigated to compare muscle composition among the 9 domestic animals including cattle. In major domestic animals, analyzed the effects of age, part and sex of the animals on their muscle composition. Large amounts of carnosine($68.63{pm}17.41{mu}mol/g$) were detected in cattle and it was higher than other animals. Whereas the content of anserine showed high level in order of turkey, chickens and duck. The ratio of carnosine and anserine(C/A ratio) was different depending on the animal species. Statistical data indicated that difference among species was significant(p < 0.05). The contents of histidine dipeptides in heated muscle by boiling for 40 minutes at $110^{circ}C$ was similar to thoes of raw muscle. C/A ratio in heated muscle was not different from that of raw muscle, indicating that no change has been made after heating process. The contents of carnosine and anserine were different according to the parts of their muscle. Especially chuck of the mammalian showed extremely low level of histidine dipeptides compared with other parts, while C/A ratio maintained certain level regardless of age, part, sex. Therefore, based on the content of histidine dipeptides, could be found the difference of muscle composition among the species. Also C/A ratio of horse, pig, cattle, duck, sheep and turkey were characteristic respectively. |
| Key Words:
species characterization, histidine dipeptides, muscle |
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