코로나방전 처리 인삼분말의 살균효과 및 품질변화

Effect of Corona Discharge on the Changes in Quality and Pasteurization of Ginseng Powder

  • 발행 : 2003.12.01

초록

인삼 분말의 저장성을 증진시키기 위한 새로운 살균법으로서 고전압 상태에서 발생하는 코로나방전 처리법의 활용가능성을 평가하기 위하여 미생물살균효과, 이화학적 특성변화, 관능 특성을 비교?분석하였다. 코로나방전 처리한 인삼분말의 미생물 사멸효과를 살펴본 결과, 일반세균, 효모/곰팡이, 대장균군 모두 피크전압이 5 kv/cm 일 경우 미생물 사멸이 매우 미미하다가 피크 전압이 점차 증가할수록 비례적으로 사멸효과가 높아지는 결과를 볼 수 있었고, 피크전압 20 kv/cm의 코로나 방전 처리구에서 총 세균과 coliform은 약 95%, 효모/곰팡이는 약 99% 정도의 미생물 사멸효과를 나타내었다. 반면 코로나방전 처리한 인삼분말의 일반성분, 무기질, 유리당, 조사포닌, 색깔(Hunter's value) 모두 P<0.05 수준에서 유의적 차이를 보이지 않았다. 관능검사 역시 색깔특성, 향, 맛, 종합적 기호도 모든 측면에서 P<0.05 수준에서 유의적 차이를 보이지 않았다. 결론적으로, 코로나방전 처리는 인삼분말에서의 미생물 살균효과가 강하고, 영양소 파괴가 없으며, 관능적으로 무처리 인삼분말과 차이가 없는 것으로 밝혀져 기존의 방사선조사 처리 등 살균법을 대체할 수 있는 새로운 살균법으로서 활용 가능성이 높다고 판단된다.

As a newly emerging pasteurization method for improving the shelf-life of powdered ginseng, the corona discharge generated at high voltage conditions was examined for its effects on microbial pasteurization, physicochemical characterization, and sensory evaluation. The pasteurizing effects of corona discharge on total bacteria, yeast, molds, and coliforms increased with increasing voltage. However, corona discharge treatment of 5 kv/cm did not show significant effects of pasteurization on the yeast, molds, and coliforms. Treatment with 20 kv/cm reduced about 95% of the total bacteria $(6.14{\pm}0.04{\rightarrow}\;4.59{\pm}0.04$) and coliforms ($2.43{\pm}0.05{\rightarrow}\;1.00{\pm}0.05$) and 99% of the yeast and molds ($4.65{\pm}0.06{\rightarrow}\;2.73{\pm}0.06$). The proximate analysis, minerals, free sugars, crude saponin, and colors of the control ginseng and the ginseng treated with 20 kv/cm were not significantly different at p<0.05. Corona discharge of up to 20 kv/cm did not affect the proximate analysis, minerals, free sugars, crude saponin, and colors of the powdered ginseng. Sensory evaluation scores on color, flavor, taste and overall acceptability between the control ginseng and ginseng treated with 20 kv/cm corona discharge were not significantly different at p<0.05 level. Consequently, corona discharge treatment is thought to be a good alternative pasteurization method for improving the shelf-life of powdered ginseng due to its effective pasteurization, maintenance of nutrients and good sensory characteristics.

키워드

참고문헌

  1. Korean Food & Drug Administration. Korean Code of Food Regulations, pp. 126-127. Ministry of Health and Welfare, Seoul, Korea (2002)
  2. Korean Food & Drug Administration. Korean Code of Food Regulations, pp. 410-411. Ministry of Health and Welfare, Seoul, Korea (2002)
  3. Vajdi, M. and Pereire, R.R. Comparative effects of ethylene oxide, $\gamma$-irradiation and microwave treatments on selected spices. J. Food Sci. 38: 893-897 (1973) https://doi.org/10.1111/j.1365-2621.1973.tb02102.x
  4. Kwon, J.H., Byun, M.W. and Cho, H.O. Quality evaluation of ground garlic and onions treated with chemical fumigants and ionizing radiation. Korean, J. Food Sci. Technol. 19: 107-112 (1987)
  5. Kwon, J.H., Byun, M.W. and Cho, H.O. Effect of gamma irradiation on the sterilization of red pepper powder. J. Korean Soc. Food Nutr. 26: 188-192 (1984)
  6. Kwon, J.H. Advances in food irradiation and it's potential roles in Korea. J. Food Hyg. Safety 17: 311-318 (1985)
  7. Kwon, J.H., Kim, S.W., Byun, M.W., Cho, H.O. and Lee, G.D. Determination of ethylene oxide residue and its secondary products in powdered food. J. Food Hyg. Safety 9: 43-48 (1994)
  8. Kwon, J.H., Byun, M.W., Lee, S.J. and Chung, H.W. Biological quality and storage characteristics of gamma-irradiated white ginseng. J. Korean Soc. Food Sci. Nutr. 28: 40-46 (1999)
  9. Kwon, J.H., Byun, M.W. and Cho, H.O. Development of food irradiation technology and consumer attitude toward irradiation food in Korea. J. Korean Radi. Protect. 41: 654-662 (1992)
  10. Sung, H.S., Park, M.H. and Lee, K.S. The effective sterilization of white ginseng powder. Korean J. Ginseng Sci. 6: 143-148 (1982)
  11. Wesley, F., Rourke, V. and Darbishire, O. The formation of persistent toxic chlorohydrines in foodstuffs by fumigation with ethylene oxide and with propylene oxide. J. Food Sci. 30: 1037-1042 (1965) https://doi.org/10.1111/j.1365-2621.1965.tb01883.x
  12. Kim, K.H., Kong, H.J., Lee, S.S. and Oh, C.H. Output power characteristics of multiple wire corona discharge transversely excited atmospheric pressure CO_2 laser. New Phys. 31: 550-554 (1991)
  13. Kim, C.Y. and Sung, K.J. Effect of corona treatment of polymers on bonds to aluminum. J. Korean Chem. Soc. 20: 417-423 (1976)
  14. AOAC. Official Method of Analysis. 15th ed. Association of Official Analytical Chemists, Washington, DC, USA (1990)
  15. Hwang, J.B., Yang, M.O. and Koo, M.S. Extraction of minerals and elimination effect of heavy metals in water by Nohwado Quartz Porphyry (I). Analytical Sci. Technol. 9: 210-219 (1996)
  16. Choi, K.J. Studies on the antioxidant components of the lipid of red and white ginseng. Ph. D. Dissertation, Korea Univ., Seoul, Korea (1983)
  17. Namba, T.M., Yashijake T., Tominori, K., Kobashi, K., Mitsui, K. and Hase, J. Chemical and biological evaluation of ginseng and related crude drugs. Yakugaku Zasshi 94: 252-260 (1974) https://doi.org/10.1248/yakushi1947.94.2_252
  18. Ha, S.D. Evaluation of dryfilm method for isolation of microorganisms from foods. Korean J. Appl. Microbiol. Biotechnol. 24: 178-184 (1996)
  19. SAS. SAS User's Guide, SAS Institute Inc., Cary NC 27513, USA (2002)
  20. Lee, Y.C. and Kim, K.O. Sensory Evaluation of Food, pp. 185-188. Hak Yeon Publishing Co., Seoul, Korea (1989)
  21. O'nahony, M.O. Sensory Evaluation of Food (Statistical methods and procedures), pp. 153-160. Marcel Dekker Inc., New York, NY, USA (1985)
  22. Jayaram, S., Castle, G.S.P. and Margaritis, A. Kinetics of sterilization of Lactobacillus brevis cells by the application of voltage pulses. Biotechnol. Bioeng. 40: 1412(1992) https://doi.org/10.1002/bit.260401116
  23. Lee, J.E., Kwon, O.J. and Kwon J.H. Effects of electron beam irradiation on microbioligical and organoleptic qualities of powdered red pepper and ginger. Korean J. Food Sci. Technol. 32: 380-386 (2000)
  24. Sung, H.S., Park, M.H., Lee, K.S., and Cho, H.O. Studies on the preservation of Korean ginseng powder. Korean. J. Food Sci. Technol. 14: 136-140(1982)
  25. Kwak, Y.S., No, K.B., Chang, J.K. and Choi, K.J. Effect of Ozone treatment on growth of microorganisms contaminated ginseng powders. J. Food Hyg. Safety 10: 45-51 (1995)
  26. Kang, K.H., Noh, B.S., Seo, J.H. and Huh, W.D. Food Analysis, pp. 390-392. Sungkyunkwan Univ. Publishing Co., Seoul, Korea (1998)
  27. Kwon, J.H., Belanger, J.M. and Pare, J.R. Effects of ionizing energy treatment on the quality of ginseng products. Radiat. Phys. Chem. 34: 963-967 (1989)
  28. Kwon, J.H., Byun, M.W. and Lee, S.J. Color Characteristics of white ginseng powder as influenced by different conditions of sterilization and storage. Korean J. Ginseng Sci. 18: 128-133 (1994)
  29. Byun, M.W., Kang, I.J., Kwon, J.H., Lee, S.J. and Kim, S.K The improvement of com starch isolation process by gamma irradiation. Korean J. Food Sci. 27: 30-35 (1995)
  30. Josephson, E.S and Peterson, M.S. Preservation of Food by Ionizing Radiation. CRC Press Inc., Boca Raton, FL, USA (1983)