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Physicochemical, Microbiological and Sensory Properties of Korean Frozen Pork Loins for Export

한국산 수출용 냉동 돈육 등심의 물리화학적, 미생물학적 및 관능적 품질특성

  • Choi, Y.S. (Livestock Bureau, Ministry of Agriculture and Forestry) ;
  • Kim, J.H. (Natinal Livestock Research Institute, RDA.) ;
  • Park, B.Y. (Natinal Livestock Research Institute, RDA.) ;
  • Lee, J.M. (Natinal Livestock Research Institute, RDA.) ;
  • Kim, I.S. (Korea Meat Trade Association) ;
  • Kim, B.C. (Department of Food Science, Korea University)
  • Published : 2002.06.30

Abstract

The Korean frozen pork loins in vacuum packaged were obtained from three different Korean export companies and investigated for pH, proximate composition, cooking loss, physico-chemical and sensory characteristics. The frozen pork loins were stored at -20$^{\circ}C$ for 40 days. The results were as follows: The protein contents were relatively higher in the samples from the company II and the ash contents were relatively higher in the samples from the company I than those from the other companies. The samples from the company Ⅱ had highest pH and water-holding capacity, and cooking loss and shear force were lowest in the company II. The total plate counts and coliform bacteria for loins from 3 companies were in the range of 3.04${\sim}$3.75 log cfu/$cm^2$ or g and 0.37${\sim}$1.32 log cfu/$cm^2$ or g in average, respectively. The TBARS values were 0.35${\sim}$0.38 mg malonaldehyde/kg sample. There were no significant differences in sensory characteristics for raw and cooked loins from all companies.

한국산 수출용 냉동 돈육의 품질 특성을 조사하기 위해 수출 육가공업체 3개소(Ⅰ . Ⅱ . Ⅲ)의 냉동 돈육 등심을 -20$^{\circ}C$에서 40일간 냉동 저장한 후 각 수출업체별 시료의 pH, 일반성분, 이화학적 특성, 관능적 특성, 선도 및 미생물 변화를 조사하였으며, 그 결과는 다음과 같다. 일반성분에서 조단백질은 Ⅱ업체 시료가 유의적(p<0.05)으로 높았고, 조회분은 Ⅰ업체 시료가 유의적으로 높았다. 육질 특성에서 pH와 보수성은 Ⅱ업체 시료가 유의적으로 높았으며, 전단력과 가열 감량은 Ⅱ업체 시료가 가장 낮았다. 총세균 수는 3.04${\sim}$3.75 log cfu/$cm^2$, 대장균군 수는 0.37${\sim}$1.32 log cfu/$cm^2$ 수준이었으며, TBARS 값은 평균 0.35${\sim}$0.38 mg malonaldehyde/kg sample 수준으로 비교적 낮았다. 척도묘사평가법을 이용한 관능검사 결과 세 업체 모두 평가 항목간에 유의적인 차이가 없는 것으로 나타났다.

Keywords

References

  1. AOAC. 1995. Official Methods of Analysis, 16th ed. Association of Official Analytical Chemists. Washington, D.C., U.S.A.
  2. Bentley, D. S., Reagan, J. O. and Miller, M. F. 1989. Effects of gas atmosphere, storage temperature and storage time on the shelflife and sensory attributes of vacuum packaged ground beef patties. J. Food Sci. 54(2):284-286. https://doi.org/10.1111/j.1365-2621.1989.tb03062.x
  3. Bouton, P. E., Harris, P. V. and Shorthose, W. R. 1971. Effect of ultimate pH upon the water holding capacity and tenderness of mutton. J. Food Sci. 36:435-441. https://doi.org/10.1111/j.1365-2621.1971.tb06382.x
  4. Brewer, M. S., Ikins, W. G. and Harbers, C. A. Z. 1992. TBA values, sensory characteristics, and volatiles in ground pork during long-term frozen storage: Effects of packaging. J. Food Sci. 57(3):558-563. https://doi.org/10.1111/j.1365-2621.1992.tb08042.x
  5. Hamm, R. 1982. Post-mortem changes in muscle with regard to processing of hot-boned beef. Food Tech. 37:86-90.
  6. Joo, S. T., Kauffman, R. G., Kim, B. C. and Kim, C. J. 1995. The relationship between color and water-holding capacity in postrigor porcine longissimus muscle. J. Muscle Foods. 6:211-226. https://doi.org/10.1111/j.1745-4573.1995.tb00568.x
  7. Kauffman, R. G., Sybesma, W., Smulders, F. J. M., Elikelenboom, G., Engel, B., van Laack, R. L. J. M., Hoving-bolink, A. H., Sterrenberg, P., Nordheim, E. V., Walstra, P. and van der Wall, P. G. 1993. The effectiveness of examining early postmortem musculature to predict ultimate pork quality. Meat Sci. 34:283-300. https://doi.org/10.1016/0309-1740(93)90078-V
  8. Kim, B. C., Kauffman, R. G., Norman, J. M. and Joo, S. T. 1995. Measuring water-holding capacity in pork musculature with a tensiometer. Meat Sci. 39:363-374. https://doi.org/10.1016/0309-1740(94)00014-X
  9. Pearson, A. M. and Young, R. B. 1989. Muscle and meat biochemistry. Academic Press, San Diego.
  10. Robinson, R. K. 1985. Microbiology of frozen foods. Elsevier Applied Science Publisher, p. 109.
  11. SAS. 1998. SAS/STAT. Software for PC, SAS/STAT User's Guide: Statistics. SAS Instiute. Inc., Cary, NC.
  12. Smith, G. C., Rape, S. W., Motycka, R. R. and Carpenter, Z. L. 1974. Packaging systems for extending the storage life of pork cuts. J. Food Sci. 39:1140-1144. https://doi.org/10.1111/j.1365-2621.1974.tb07337.x
  13. van Oeckel, M. J., Warnants, N. and Boucque, C. V. 1999. Measurement and prediction of pork colour. Meat Sci. 52:347-354. https://doi.org/10.1016/S0309-1740(99)00012-1
  14. Warriss, P. D. and Brown, S. N. 1987. The relationships between initial pH, reflectance and exudation in pig muscle. Meat Sci. 20: 65-74. https://doi.org/10.1016/0309-1740(87)90051-9
  15. Witte, V. C., Krause, G. F. and Bailey, M. E. 1970. A new extraction for determining 2- thiobarbituric acid values of pork and beef during storage. J. Food Sci. 35:582-588. https://doi.org/10.1111/j.1365-2621.1970.tb04815.x
  16. 김년진, 박용근, 공운영. 1972. 감마선 조사에 의한 우육의 저장에 관한 연구. 한국식품과학회지. 4(2):95-102.
  17. 김동훈, 이무하, 김일석, 김태헌, 이영창, 채현석, 김웅배, 정일병. 1998. CIE L* 기준에 의한 PSE육과 정상육의 육질 및 도체특성에 관한 연구. 한국축산학회지. 40(6) 643-650.
  18. 김병철, 한철용, 주선태, 이 석. 1999. 진공포장 후 분할된 냉장소매돈육의 진열조건과 저장성에 미치는 효과. 한국축산학회지. 41(1):75-88.
  19. 김일석, 이무하. 1998. 수입산 및 국내산 냉동 삼겹살의 미생물학적 및 이화학적 특성 비교. 한국축산학회지 40(4):413-420.
  20. 농림부. 1999. 축산물등급판정세부기준(농림부 고시제1999-64호).
  21. 농림부. 2000. 2000 돼지고기수출확대대책.
  22. 농림부. 2002. 2002 돼지고기수출촉진대책.
  23. 변명우, 권동호, 조한옥, 이영경, 김종군. 1985. 감마선 조사에 의한 닭고기의 이화학적 특성변화. 한국식품과학회지. 17(3):186-194.
  24. 식품의약품안전청. 1999. 식품공전. p. 200.
  25. 이유방, 성삼경. 1989. 식육과 육제품의 분석 실습. 선진문화사.
  26. 日本 厚生省. 1996. 輸入食肉の期限表示のためのガイドライン.
  27. 高坂和久. 1975. 肉製品の鮮度保持と測定. 食品工業. 18:257-264.

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