Effect of Tomato Ketchup on Fermentation and Quality of Kimchi

토마토케첩 첨가가 배추김치의 발효와 품질에 미치는 영향

  • Published : 2006.10.01

Abstract

This study was conducted to investigate the potential use of tomato ketchup as an ingredient to improve color and taste in kimchi with reduced red pepper content about 40%. The quality characterisics were studied for kimchi with or without tomato ketchup during fermentation for 25 days at $10^{\circ}C$. The pH of kimchi with tomato ketchup (KWT) decreased with increasing tomato ketchup content from 5% to 20%. The pH of KWT was lower than that of kimchi without tomato ketchup (KWOT) in the early stage of fermentation and did not show any difference after 10 days of fermentation at $10^{\circ}C$. The tendency of titratable acidity changes in KWT and KWOT was the same as the pH changes. The growth of lactic acid bacteria was more inhibited in KWT than in KWOT until 5 days fermentation and the significant difference between KWT and KWOT did not show after 10 days fermentation at $10^{\circ}C$. In sensory evaluation, the hot taste of the kimchi was decreased but the flavor and overall acceptability were increased significantly by addition of 5 to 10 % tomato ketchup (p<0.05).

Keywords

tomato ketchup;quality;reduced hot taste;kimchi

References

  1. Han JlS, Kim HY, Suh BS, Hand JP. Asurvey on elementary school children's awareness of and preference for kimchi. Korean J. Soc. Food Sci. 13: 259-265 (1997)
  2. Kim JH. Effect of rosemary leaf on quality and sensory charactcristics of kim chi. Korean J. Food Nutr. 16: 283-288(2003)
  3. Ko YT, Lee JY. Quality of Licorice (Glvcyrrhiza uralensis) powder added k imchi. Korean J. Food Sci. Technol. 38: 143-146 (2006)
  4. Yi JH, Cho Y. Hwang IK. Effect of kimchi minor ingredients on growth of lactic acid bacteria. Korean J. Soc. Food Sci. 11: 511-520 (1995)
  5. Song TC, Han DS, Lee CH, Kim, YE, Kim HY. Effect of dietary supplementation of terrapin or snake extract on exercise performance in rats. Korean J. Food Sci. Technol. 37: 214-220 (2005)
  6. Ann YG. A study on overgrown antler kimchi. Korean J. Food Nutr. 16: 123-129 (2003)
  7. Kim SJ. Difficulty in Korean kimchi industry for modernization. Food Ind. Nutr. 6: 34-37 (2001)
  8. Ko YT. Effects of licorice (Gtvcyrrhiza uralensis) extract added to kimchi on growth and acid formation by lactic acid bacteria and on uality of kimchi. Korean J. Food Sci. Technol. 37: 795-800(2005)
  9. Kim MK, Kim SY, Woo CJ, Kim SD. Effect of air controlled fermentation on kimchi quality. J. Korean Soc. Food Nutr. 23: 268-273 (1994)
  10. Song YO, Kim EH, Kim M, Moon JW. A survey on the children's notion in kimchi (II); children's opinions for kimchi and their actual consuming hehavior. J. Korean Soc. Food Nutr. 25: 765-770 (1995)
  11. Lec SH, Park KN, Lim YS. Effect of Scutellaria baicalensis G., Lithospermum erythorhizon extracts and Ozone-treated crab shell on fermenation of bacchu kimchi. J. Korean Soc. Food Sci. Nutr. 28: 359-364 (1999)
  12. Lee HY, Paik JE, Han YS. Effect of powder-type dried alaska pollack addition on the quality of kimchi. Korean J. Soc. Food. Cookery Sci. 19: 254-262 (2003)
  13. Koo NS. Housewives' consumption aspects of korean fermented foods in Taejon. J. Korean Soc. Food Sci. Nutr. 26: 714-725 (1997)
  14. Park EJ, Park GS, An SH. Effect of pheasant and soybean extracts on the characteristics of quality of baechu kimchi. Korean J. Food Cult. 19: 587-597 (2004)
  15. Lee SH, Park NY, Choi WJ. Chagnes of the lactic acid bacteria and selective inhibitory substances against homo and hetero laetiae acid bacteria isolated from kimchi, Korean J. Appl, Microhiol. Biotechnol. 27: 410-414 (1999)
  16. Ann YG, Shin CS, Lee JU. A study on young antler kimchi. Korean J. Food Nutr. 16: 22-28 (2003)