Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Fermentation Characteristics of Kimchi Treated with Different Methods of Green Tea Water Extracts

녹차의 처리방법에 따른 김치의 발효특성

  • 김미경 (문경대학 호텔조리과) ;
  • 김순동 (대구가톨릭대학교 식품공학과)
  • Published : 2003.09.01
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Abstract

This study was conducted to investigate the fermentation characteristics of kimchi treated with different methods of water extracts of powdered green tea(GT). Four different kimchis, the SB-kimchi(control) which was not treatment of the extracts, SG-kimchi prepared with Chinese cabbage(CC) salted in 1％ GT containing 10％ brine, DG-kimchi prepared with CC dipped in 1％ GT for 30 min after salting, MS-kimchi prepared with the salted CC mixed with 1％ GT containing seasonings. All kimchis was fermented at 10$^{\circ}C$. The pH of treated-kimchis were maintained higher than those of control products during fermentation, but it showed no big difference between each treated groups. Total microbe of SB-kimchi(6.27-9.37 cfu/mL) was higher than those of GT-treated kimchi(5.17-9.20) during fermentation. The ratio of lactic acid bacteria against total microbe was higher than the treated kimchis. Total polyphenol content of kimchi was 52.75 mg％ in DG-kimchi, 47.71 mg％ in MS-kimchi, 44.89 mg％ in SG-kimchi, 30.70 mg％ in SB-kimchi on the 5th days of fermentation. Scores of crispy taste of SG- and DG-kimchi on the 5th days of fermentation was 4.03 and 4.01 points, respectively which was higher than control products. Scores of fishy and hot taste of GT-treated kimchi were lower than those of control products during all fermentation periods.

김치 제조시 녹차 물추출물의 첨가방법이 발효특성과 관능적 품질에 미치는 영향을 조사하기 위하여 배추의 절임시 1% 녹차 물 추출물을 함유하는 10%소금물로 24시간 절임한 후 담근 김치(SG), 10% 소금물로 24시간 절인 후 1% 녹차 추출물에 30분간 담근 후 담근 김치(DG) 및 1% 녹차 물 추출물과 양념을 혼합하여 담근 김치(MS)를 1$0^{\circ}C$에서 숙성키면서 발효 특성과 관능적 품질을 조사하였다. 김치의 숙성 중 pH는 전반적으로 녹차처리구가 대조구에 비하여 높아 녹차처리로 숙성이 지연되었으나 녹차 처리구 상호간의 뚜렷한 차이는 보이지 않았다. SB-김치의 총균수는 6.27-9.37logCFU/mL 녹차 첨가한 SG-, BG-, MS-김치의 5.17-9.20logCFU/mL 높았으며, 적숙기의 총균수에 대한 젓산균의 비율은 SB-김치가 SG-, DG-, MS-김치보다 높았다. 숙성 5일째 김치의 총 polyphenol 함량은 DG 52.75 mg%, MS 47.71 mg%, SG 44.89 mg%, SB 30.70 mg%로 DG에서 가장 높은 함량을 나타내었다. 숙성 5일째 김치의 사각사각한 맛은 SG 및 DG에서 각각 4.03 및 4.01점으로 대조구보다 높은 값을 보였으며 비린 맛과 매운 맛은 녹차 처리구에서 전반적으로 낮았다. 종합적인 맛은 DG 및 MS가 높은 평가치를 나타내었다.

Keywords

References

  1. Graham, H.N. (1992) Green tea composition, consumption, and polyphenol chemistry, Preventive Medicine, 21, 334-350 https://doi.org/10.1016/0091-7435(92)90041-F
  2. Lee, J.W. and Shin, H.S. (1993) Antioxidant effect of aqueous extract obtained from green tea, J. Korean Soc. Food Sci., 25, 759-763
  3. Hwang, S.Y., Choi, O.K. and Lee, H.J. (2001) In fluence of green tea powder on the physical properties of the bread flour and dough rheology of white pan bread. Korean J. Food & Nutr., 14, 34-39
  4. Kim, J.S. (1998) Sensory characteristics of green tea bread. Korean J. Food & Nutr., 11, 657-661
  5. Roh, H.J., Shin, Y.S., Lee, K.P. and Shin, M.K. (1996) Effect of water extract of green tea on the quality and shelf life of cooked rice. Korean J. Food Sci. Technol., 28, 417-420
  6. Kwon, M.Y, Lee, Y.K. and Lee, H.G. (1996) Sensory and mechanical characteristics of Heunmi-nokcha-injulmi supplemented by green tea powder. Korean J. Soc. Food Cookery Sci., 34, 329-340
  7. Kim, S.M, Cho, Y.S., Sung, S.K., Lee, I.G., Lee, S.H. and Kim, D.G. (2002) Developments of functional sausage using plant extracts from pine needle and green tea. Korean J. Food Sci. Ani. Resour., 22, 20-29
  8. Kim, H.S. and Kim, S.N. (2001) Effects of addition of green tea powder and angelica keiskei powder on the quality characteristics of yukwa. Korean J. Soc. Food Cookery Sci., 17, 246-255
  9. Bang, B.H. and Park, H.H. (2000) Preparation of yogurt added with green tea and mugwort tea and quality characteristics. J. Korean Soc. Food Sci. Nutr., 29, 854-859
  10. Park, H.J., Kim, S.L., Lee, Y.K and Han, Y.S. (1994) Effect of green tea on kimchi quality and sensory characteristic. J. Korean Soc. Food Sci., 10, 315-321
  11. Park, M.J., Jeon Y.S. and Han, J.S. (2001) Fermentation characteristics of mustard leaf kimchi added green tea and pumpkin powder. J. Korean Soc. Food Sci. Nutr., 30, 215-221
  12. Park, W.P. Park, K.D., Kim, J.H., Cho, Y.B. and Lee, M.J. (2000) Effect of washing conditions in salted Chinese cabbage on the quality of kimchi. J. Korean Soc. Food Sci. Nutr., 27, 30-34
  13. Harrigan, W.F. and McCance, M.E. (1976) Laboratory methods in food and dairy microbiology. Academic Press, New York, USA, p.347
  14. Hammerschmidt, P.A. and Pratt, D.E. (1978) Phenolic antioxidants of drided soybeans. J. Food Science, 43, 556-559 https://doi.org/10.1111/j.1365-2621.1978.tb02353.x
  15. Herbert, A. and Joel, L.S. (1993) Sensory evaluation practices. 2nd ed., Academi press, New York, USA, p.68-94
  16. Mheen, T.I. and Kwon T. W (1984) Effect of temperature and salt concentration on kimchi fermentation. Korean J. Food. Sci. Technol., 16, 443-450
  17. Wee, J.H. and Park, K.H. (1997) Retardation of kimchi fermentation and growth inhibition of related microorganism by tea catechins. Korean J. Food Sci. Technol., 29, 1275-1280
  18. Wee, J.H., Moon, J.H., and Park, K.H. (1999) Catechin content and composition of domestic tea leaves at different plucking time. Korean J. Food Sci. Technol., 31, 20-23
  19. Lee, Y.O. (1996) Studies on the antioxidative characteristics and antioxidative substance of kimchi. Ph. D. thesis Pusan National University