Effects of Ohmic Thawing on the Physicochemical Properties of Frozen Pork

  • Kim, Jee-Yeon (Department of Food Science and Biotechnology of Animal Resources, Konkuk University) ;
  • Hong, Geun-Pyo (Department of Food Science and Biotechnology of Animal Resources, Konkuk University) ;
  • Park, Sung-Hee (Department of Food Science and Biotechnology of Animal Resources, Konkuk University) ;
  • Lee, Sung (Department of Foods and Biotechnology, Hanseo University) ;
  • Min, Sang-Gi (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
  • Published : 2006.06.30

Abstract

This study was carried out to investigate the physicochemical properties of frozen pork muscle which has been thawed using the ohmic thawing process, and to establish the optimal ohmic power intensity. The samples were frozen at $-40^{\circ}C$ and thawed at 0, 10, 20, 30, and 40 V by ohmic thawing. Increasing ohmic power intensity correlated with increased thawing rates. The relationship between ohmic power intensity and thawing rate can be represented as a polynomial function. The pH value decreased with increasing ohmic power intensity (p<0.05). With regard to color measurement, the $L^*$, a, and b values of thawing at all ohmic power intensities were not significantly different. The water holding capacity showed a peak value of 41.62% with an ohmic thawing intensity of 30 V. Cooking losses were lowest at the lowest ohmic thawing intensity of 10 V. Thiobarbituric acid reactive substance (TBARS) levels with all thawing processes were slightly higher than that of the control (p<0.05). Increasing ohmic power intensity did not tend to change the total volatile basic nitrogen (TVBN) value.

Keywords

References

  1. Karel M, Fennema O. Principles of Food Science, Part. Physical Principles of Food Preservation. Marcel Dekker, New York, NY, USA. p.208 (1975)
  2. Taher BJ, Farid MM. Cyclic microwave thawing of frozen meat: experimental and theoretical investigation. Chem. Eng. 40: 379-389 (2001)
  3. Jamieson L, Williamson P. The potential of electrotechnologies for the processing of foods. Food Sci. Technol. Today 13: 97-101 (1999)
  4. Reznick D. Ohmic heating of fluid foods. Food Technol. -Chicago 50: 250-251 (1996)
  5. Fellow P. Food Processing Technology - Principles and Practice. 2nd ed. Chickester, Ellis Horwood, UK. pp. 369-380 (2000)
  6. Sastry SK. Ohmic heating of foods. Food Process Eng. Inst. News 26: 10-11 (1992)
  7. Skudder PJ. New system for sterilization of particulate food products by ohmic heating. pp. 95-106. In: Aseptic Processing of Foods. Reuter H (ed). Lancaster Press, Technomic Pub., OH, USA (1993)
  8. Yun CG, Lee DH, Park JY. Ohmic thawing of frozen meat chunk. Korean J. Food Sci. Technol. 30: 842-847 (1998)
  9. Ngapo TM, Babare IH, Reynolds J, Mawson RF. Freezing rate and frozen storage effects on the ultrastructure of samples of pork. Meat Sci. 53: 159-168 (1999) https://doi.org/10.1016/S0309-1740(99)00051-0
  10. Suck BC, Park JG, Kim YG, Ryu HS, Park SH, Min SG. Changes of physicochemical properties of frozen pork using ohmic thawing system. pp. 321-325. In: 34th Advanced Technologies for the Functional Improvements of Foods from Animal Resources. October 29, Cheonnam University, Korean Society for Food Science of Animal Resources, Chungnam, Korea (2004)
  11. Grau R, Hamm R. A simple method for the measurement of water holding capacity in muscle. Naturwissenschaften 40: 29-35 (1953) https://doi.org/10.1007/BF00595734
  12. Kim CJ, Lee ES. Effects of quality grade on the chemical, physical and sensory characteristics of Hanwoo (Korean native cattle) beef. Meat Sci. 63: 397-405 (2003) https://doi.org/10.1016/S0309-1740(02)00099-2
  13. Conway EJ, Byrne A. An absorption apparatus for the micro-determination of certain volatile substances. Biochemistry-US 27: 419-429 (1933)
  14. SAS Institute, Inc. SAS/STAT User's Guide. Statistical Analysis Systems Institute, Cary, NC, USA (1996)
  15. McKenna BM, Lyng J, Brunton N, Shirsat N. Advances in radio frequency and ohmic heating of meats. pp. 7219-7241. In: 16th International Congress of Chemical and Process Engineering. August 22-26, Czech Technical University, Prague, Czech Republic (2004)
  16. Bing L, Da-Wen S. Novel methods for rapid freezing and thawing of foods - a review. J. Food Eng. 54: 175-182 (2002) https://doi.org/10.1016/S0260-8774(01)00209-6
  17. James C, James SJ. The heat pipe and its potential for enhancing the freezing and thawing of meat in the catering industry. Int. J. Refrig. 22: 414-424 (1999) https://doi.org/10.1016/S0140-7007(98)00072-3
  18. Ryu YC, Kim BC. The relationship between muscle fiber characteristics, postmortem metabolic rate, and meat quality of pig longissimus dorsi muscle. Meat Sci. 71: 351-357 (2005) https://doi.org/10.1016/j.meatsci.2005.04.015
  19. Rhee MS, Kim BB. Effect of low voltage electrical stimulation and temperature conditioning on postmortem changes in glycolysis and calpains activaties of Korean native cattle (Hanwoo). Meat Sci. 58: 231-237 (2001) https://doi.org/10.1016/S0309-1740(00)00155-8
  20. Melissa PR, Graham RT, Robyn DW. The influence of the rate of pH decline on the rate of ageing for pork. I: interaction with method of suspension Meat Sci. 65: 791-804 (2003) https://doi.org/10.1016/S0309-1740(02)00284-X
  21. Chrystall BB, Devine CE. Electrical stimulation, muscle tension and glycolysis in bovine sternomandibularis. Meat Sci. 2: 49-58 (1978) https://doi.org/10.1016/0309-1740(78)90021-9
  22. Faustman C, Cassens RG. The biochemical basis for discoloration in fresh meat: a review. J. Muscle Foods 1: 217-243 (1990) https://doi.org/10.1111/j.1745-4573.1990.tb00366.x
  23. Naumann HD, Rhodes VJ, Brady DE, Kiehl ER. Discrimination techniques in meat acceptance studies. Food Technol.-Chicago 2: 123 (1957)
  24. Hamm R. Colloid chemistry of meat. Berlin and Hamburg: Parey, Germany. pp. 215-222 (1972)
  25. Margit DA, Camilla B, Per E, Hanne CB, Henrik JA. Cooking loss and juiciness of pork in relation to raw meat quality and cooking procedure. Food Qual. Prefer. 14: 277-288 (2003) https://doi.org/10.1016/S0950-3293(02)00086-1
  26. Petroviae L, Grujiae R, Petroviae M. Definition of the optimum freezing rate-2. Investigation of the physico-chemical properties of beef M. longissimus dorsi frozen at different freezing rates. Meat Sci. 33: 319-331 (1993) https://doi.org/10.1016/0309-1740(93)90004-2
  27. Farouk MM, Swan JE. Effect of rigor temperature and frozen storage on functional properties of hot-boned manufacturing beef. Meat Sci. 49: 233-247 (1998) https://doi.org/10.1016/S0309-1740(97)00134-4
  28. Sheard PR, Nute GR, Richardson RI, Perry A, Taylor AA. Injection of water and polyphosphate into pork to improve juiciness and tenderness after cooking. Meat Sci. 52: 371-376 (1999)
  29. Davide B, Marina P. Influence of cooking conditions on cooking loss and tenderness of raw and marinated chicken breast meat. Lebensm. -Wiss. Technol. 38: 895-901 (2005) https://doi.org/10.1016/j.lwt.2004.08.017
  30. Morrissey PA, Sheehy PJA, Galvin K, Kerry JP, Buckley DJ. Lipid stability in meat and meat products. Meat Sci. 49: 73-86 (1998) https://doi.org/10.1016/S0309-1740(98)90039-0
  31. Hong GP, Park SH, Kim JY, Lee CH, Lee S, Min SG. The effects of thawing rate on the physicochemical properties of frozen ostrich meat. Food Sci. Biotechnol. 14: 676-680 (2005)
  32. Albi T, Lauzon A, Guinda A, Leon M, Perez-Camino MC. Microwave and conventional heating effects on thermoxidative degradation of edible fats. J. Agric. Food Chem. 45: 3795-3798 (1997) https://doi.org/10.1021/jf970181x
  33. Albi T, Lauzon A, Guinda A, Perezcamino MC, Leon M. Microwave and conventional heating effects on some physical and chemical parameters of edible fats. J. Agric. Food Chem. 45: 3000-3003 (1997) https://doi.org/10.1021/jf970168c
  34. Watts BM. Meat products. pp. 202-219. In: Symposium on Food: Lipids and their Oxidation. Shultz HW, Day EA, Simhulber RPR (eds). AVI Publishing Co., Westport, CT, USA (1962)