Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Effects of Vessel on the Quality Changes during Fermentation of Kochujang

고추장의 숙성 중 발효 용기가 품질변화에 미치는 영향

  • Chung Sun-Kyung (Department of Confectionery and Baking, Changwon College) ;
  • Kim Young-Sook (Department of Food Processing and Baking, Yangsan College) ;
  • Lee Dong Sun (Division of Food Science and Biotechnology, Kyungnam University)
  • 정순경 (창원전문대학 제과제빵과) ;
  • 김영숙 (양산대학 식품가공제과제빵과) ;
  • 이동선 (경남대학교 식품생명공학부)
  • Published : 2005.06.01
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Abstract

Kochujang(Korean red pepper paste) of 600 g was fermented in the different types of vessels (glass, polypropylene(PP), polyethylene terephthalate(PET), stainless steel and Korean porcelain called onggi) with 627 mL of volume during 4 months. The quality changes were monitored for physical, chemical and microbiological attributes. Onggi which had high porosity in the micro-structure provided kochujang with higher microbial counts of aerobic bacteria, lactic acid bacteria and yeasts than those of the other containers. Compared to kochujang fermented in the other containers, kochujang in Onggi showed higher protease activity, amino type nitrogen, and free amino acid content. The kochujang in Onggi also attained higher acidity, lower pH and higher reducing sugar concentration than those in the other containers. All changes were completed 2 or 3 months. Onggi showed water loss and salt increase of the kochujang comparable to those in the other vessels, which was from gradual clogging of the micropores during storage. All physical, chemical and microbiological changes made the kochujang in Onggi attain the sensory quality significantly better than those fermented in the other vessels.

발효식품 담금 용기로 사용되고 있는 유리, polypropylene(PP), polyethylene terephthalate(PET), 스테인레스 용기, 옹기에 고추장을 담아 $30^{\circ}C$에서 4개월 동안 발효하는 동안 물리적, 화학적, 미생물적인 품질변화를 측정하여 담금 용기의 효과를 비교 평가하였다. 높은 기공성을 가진 옹기는 다른 용기에 비해 전체 발효기간에서 높은 호기성 세균수, 젖산균수, 효모수를 보여서 가장 왕성한 발효진행을 보였으며, 이와함께 높은 protease 활성을 유지시키고, 아미노태 질소와 유리 아미노산을 생산하였다. 아울러 옹기에 담금 한 고추장에서는 높은 총산함량과 낮은 pH를 얻게 하였으며, 환원당도 많이 생성시켰다. 이러한 변화는 발효 $2{\sim}3$개월에 완성되어졌다. 하지만 높은 기공성에도 불구하고 옹기에서 발효된 고추장은 타용기구에 비해서 수분손실과 염도상승은 현저하지 않았는데, 이는 시간의 경과에 따라 옹기벽면에서의 기공이 고추장 성분에 의하여 일부 닫혀짐에 의한 것으로 해석된다. 이러한 성분변화의 결과로 인하여 옹기에서 발효된 고추장은 관능적인 품질에서 타 용기처리구에 비해 유의적으로 우수하였다.

Keywords

References

  1. Yoon, S.J. (2003) Fermentation food of korean. p.15-16
  2. Lee, K.H., Lee, M.S. and Park, S.O. (1976) Studies on the microflora and enzymes influencing on korea native kochuzang (red pepper soybean paste) aging. J. Korean Agri. Chemi. Soc., 19, 82-92
  3. Ahn, C.W. and Sung, N.K. (1987) Changes of major components and microorganisms during the fermentation of korean ordinary kochujang. J. Korean Soc. Food Nutr., 16, 35-39
  4. Shin, D.B., Park, W.M., Yi, O.S., Koo, M.S. and Chung, K.S. (1994) Effect of storage temperature on the physicochemical characteristics in kochujang(Red pepper soybean paste). Korean J. Food Sci. Technol., 26, 300-304
  5. Park, J.M. and Oh, H.I. (1995) Changes in microflora and enzyme activities of traditional kochujang meju during fermentation. Korean J. Food Sci. Technol, 27, 56-62
  6. Shin, D.H., Kim, D.H., Choi, U., Lim, D.K. and Lim, M.S. (1996) Studies on the physicochemical characteristics of traditional kochujang. Korean J. Food Sci. Technol., 28, 157-161
  7. Lee, J.M., Jang, J.H., Oh, N.S. and Han, M.S. (1996) Bacterial distribution of kochujang. Korean J. Food Sci. Technol., 28, 260-266
  8. Shin. D.H., Kim, D.H., Choi, U., Lim, M.S. and An, E.Y. (1997) Changes in microflora and enzymes activities of traditional kochujang prepared with various raw materials. Korean J. Food Sci. Technol., 29, 901-906
  9. Shin. D.H., Kim, D.H., Choi, U., Lim, M.S. and An, E.Y. (1997) Taste components of traditional kochujang prepared with various raw materials. Korean J. Food Sci. Technol., 29, 913-918
  10. Choo, J.J. and Shin, H.J. (2000) Sensory evaluation and changes in physiochemical properties and microflora and enzyme activities of pumpkin added kochujang. Korean J. Food Sci. Technol., 32, 851-859
  11. Kim, M.S., Ahn, E.Y., Ahn, E.S and Shin. D.H. (2000) Characteristic changes of kochujang by heat treatment. Korean J. Food Sci. Technol., 32, 867-874
  12. Bae, W.T., Cho. Y.J. and Hur, B.Y. (1984) Analysis of the earthenware of Gaya in westem Gyeongnam province. J. Gyeongsang University., p.99-108
  13. Lee, G.J. and Park, C.K. (1981) Lead content leached out from glazed potteries. Bull. Korean Fish. Soc., 14, 158-164
  14. Mohammed, A., Ahsanullah, K., Azhar, A.N. and Shamin, A. (1997) Heavy metals: leaching from glazed surfaces of tea mugs. Sci. Total Environ., 207, 49-54 https://doi.org/10.1016/S0048-9697(97)00244-1
  15. Lee, K.H., Kwon, K.S., Jean, D.H., Jeong, D.Y. and Choi, B.H. (2000) Study on hazardous heavy metals from porcelain dinnerwares. J. Food Hyg. Safety., 15, 324-327
  16. Yoo, S.M., Kim, J.S. and Shin, D.H. (2001) Quality changes of traditional Doenjang fermented in different vessels. J. Korean Soc. Agric. Chem. Biotechnol., 44, 230-234
  17. Shin, D.H., Kim, D.H., Choi, U., Lim, M.S and An, E.Y. (1997) Physicochemical characteristics of traditional kochujang prepared with various raw materials. Korean J. Food Sci. Technol., 29, 907-912
  18. Shin, D.H., Kim, D.H., Choi, U., Lim, M.S. and An, E.Y. (1997) Effect of red pepper varieties on the physicochemical characteristics of traditional kochujang during fermentation. J. Korean Soc. Food Nutr., 26, 1044-1049
  19. Kim, M.S., Kim, I.W., Oh, J.A. and Shin, D.H. (1999) Effect of different koji and irradiation on the quality of traditional kochujang. Korean J. Food Sci. Technol., 31, 196-205
  20. Shin, D.H., Kim, D.H., Choi, U., Lim, M.S An, and E.Y. (1997) Effect of red pepper varieties on the microflora, enzyme activities and taste components of traditional kochujang during fermentation. J. Korean Soc. Food Nutr., 26, 1050-1057
  21. Chung, S.K., Lee, K.S. and Cho, S.H. (2004) Effect of fermentation vessel on quality of anchovy soy sauce. Korean J. Food Preserv., 11, 233-239
  22. Seo, G.H., Chung, S.K., An, D.S. and Lee, D.S. (2005) Permeabilities of Korean earthenware containers and their potential for packaging fresh produce. Food Sci. Biotechnol., 14, 82-88
  23. Lee, T.S. (1979) Studies on the brewing of kochuzang (red pepper paste) by the addition of yeasts. J. Korean Agri. Chemi. Soc., 22, 65-90