Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Quality Characteristics of Brown Rice Vinegar by Ferment Ratio

발효제 비율에 따른 현미식초의 품질특성

  • Baek, Chang-Ho (Fermentation & Food Processing Division, Department of Agro-food Resources, NAAS, RDA) ;
  • Choi, Ji-Ho (Fermentation & Food Processing Division, Department of Agro-food Resources, NAAS, RDA) ;
  • Choi, Han-Seok (Fermentation & Food Processing Division, Department of Agro-food Resources, NAAS, RDA) ;
  • Jeong, Seok-Tae (Fermentation & Food Processing Division, Department of Agro-food Resources, NAAS, RDA) ;
  • Lee, Su-Won (Department of Food Science and Technology, Kyungpook National University) ;
  • Kwon, Joong-Ho (Department of Food Science and Technology, Kyungpook National University) ;
  • Woo, Seung-Mi (Department of Food Science and Technology, Keimyung University) ;
  • Jeong, Yong-Jin (Department of Food Science and Technology, Keimyung University) ;
  • Yeo, Soo-Hwan (Fermentation & Food Processing Division, Department of Agro-food Resources, NAAS, RDA)
  • 백창호 (농촌진흥청 국립농업과학원 농식품자원부 발효이용과) ;
  • 최지호 (농촌진흥청 국립농업과학원 농식품자원부 발효이용과) ;
  • 최한석 (농촌진흥청 국립농업과학원 농식품자원부 발효이용과) ;
  • 정석태 (농촌진흥청 국립농업과학원 농식품자원부 발효이용과) ;
  • 이수원 (경북대학교 식품공학과) ;
  • 권중호 (경북대학교 식품공학과) ;
  • 우승미 (계명대학교 식품가공학과) ;
  • 정용진 (계명대학교 식품가공학과) ;
  • 여수환 (농촌진흥청 국립농업과학원 농식품자원부 발효이용과)
  • Received : 2011.06.09
  • Accepted : 2011.12.09
  • Published : 2011.12.30
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Abstract

Brown rice vinegar was made from brown rice mash with different brewing starter addition rates in static culture, and its quality characteristics were investigated. As a result, the amounts of alcohol produced in the fermentation process were shown to be 9.1, 8.8, 8.6 and 8.5% in the Nuruk 75 : crude enzyme 25 (B), Nuruk 50 : crude enzyme 50 (C), Nuruk 25 : crude enzyme 75 (D) and Nuruk 0 : crude enzyme 100 (E), respectively. The higher the percentage of crude enzyme added was, the lower the alcohol content that was produced. Nuruk 100 : crude enzyme 0 (A) was appeared to contain the lowest alcohol content (7.7%). In addition, the titratable acidity in all the groups was about 0.7%. The final titratable acidity (BV) of brown rice vinegar made with static culture was the highest (approximately 5.2%). The initial pH appeared to be between 3.6~4.0 and steadily decreased as the fermentation progressed, and the pH was almost unchanged after 15 day fermentation. The examination of the changes in the organic acids showed that the acetic acid content was similar in all the groups, and that the single starter added (AV, EV) group had much more other organic acids than the mixed starters added (BV, CV, DV) group. From these results, the mixed starters (Nuruk and crude enzyme) added group appeared to be superior to the single starter added in terms of alcohol production ability and vinegar quality. As the future aging process, however, is expected to change the flavor components and sensory characteristics, studies on various quality factors of vinegar are needed.

양조용 발효제 비율을 달리한 현미 술덧을 정치배양하여 현미식초를 제조하여 품질특성을 조사하였다. 그 결과, 발효과정에서 알코올 함량은 (B) 9.1%, (C) 8.8%, (D) 8.6%, (E) 8.5%로 조효소제 비율이 높을수록 감소하였고 (A)는 7.7%로 가장 낮게 나타났다. 또한 적정산도는 모든 구간에서 0.7% 정도로 나타났다. 정치배양 현미식초의 최종 적정산도는 (BV)가 약 5.2%로 가장 높게 나타났다. 초기 pH는 3.6~4.0으로 나타났고 발효가 진행됨에 따라 꾸준히 감소 하였으며, 발효 15일 이후에는 거의 변화가 없었다. 유기산 함량 변화를 조사한 결과, acetic acid는 모든 첨가구에서 비슷한 함량을 나타내었고, 기타 유기산들은 단일 첨가구(AV, EV)보다 혼합 첨가구(BV, CV, DV)에서 더 높게 나타났다. 따라서 누룩 단일 첨가구에 비하여 누룩 및 조효소제 혼합 첨가구의 알코올 발효능 및 식초의 품질이 더 우수한 것으로 나타났다. 향후, 숙성과정에서 변화를 거치면서 향기성분, 관능적 특성에 차이가 있을 것으로 예상되어 다양한 식초의 품질인자에 관한 연구가 요구된다.

Keywords

References

  1. Yeo SH, Jeong YJ (2010) Current trends and development a plan in the Korean Makgeolli industry. Food Sci Industry, 43, 55-64
  2. Jeong YJ (2008) Brewing technology. Keimyung University Press, Daegu, Korea. p 59-60
  3. Lee SS, Kim KS, Eom AH, Sung CK, Hong IP (2002) Production of Korean traditional rice-wines made from cultures of the single fungal isolates under laboratory conditions. Korean J Mycology, 30, 61-65 https://doi.org/10.4489/KJM.2002.30.1.061
  4. Kim GW (2002) Modernization and standardization of traditional Nuruk Korean J Soc Mycology, 14, 37-40
  5. Park CS, Lee TS (2002) Quality characteristics of Takju prepared by wheat flour Nuruks. Korean J Food Sci Technol, 34, 296-302
  6. So MH, Lee YS, Noh WS (1999) Improvement in the quality of Takju by a modified Nuruk. Korean J Food Nutr, 12, 427-432
  7. Park CS, Lee TS (2002) Quality characteristics of Takju prepared by wheat flour Nuruk. Korean J Food Sci Technol, 34, 296-302
  8. Han EH, Lee TS, Noh BS, Lee DS (1997) Volatile flavor components in mash of Takju prepared by using different Nuruks. Korean J Food Sci Technol, 29, 563-570
  9. Jeong YJ, Lee MH (2000) A view and prospect of vinegar industry. Food Ind Nutr, 5, 7-12
  10. Jeong YJ (2009) Current trends and future prospects in the Korean vinegar industry. Food Sci Ind, 42, 52-59
  11. Jang SY, Sin KA, Jeong YJ (2010) Quality characteristics of apple vinegar by agitated and static cultures. J Korean Soc Food Sci Nutr, 39, 308-312 https://doi.org/10.3746/jkfn.2010.39.2.308
  12. Jeong YJ, Lee JM, Woo SM, Jang SY (2010) Quality characteristics of tomato vinegar by agitated and static cultures. Food Security and Rice Industry Revitalization, September 30-October 1, Gyeongju, Korea
  13. Yoon SR, Kim GR, Lee JH, Lee SW, Yeo SH, Jeong YJ, Kwon JH (2010) Properties of organic acids and volatile components in brown rice vinegar prepared using different yeasts and fermentation methods. Korean J Food Preserv, 17, 733-740
  14. Lee SW, Kwon JH, Yoon SR, Woo SM, Yeo SH, Jeong YJ (2011) Quality characteristics of brown rice vinegar prepared using varying amounts of Nuruk (an amylolytic enzyme preparation) and employing different fermentation conditions. Korean J Food Preserv, 18, 26-32 https://doi.org/10.11002/kjfp.2011.18.1.026
  15. Korea National Tax Service Liquor Analysis Regulation (2008) National Tax Service Technical Service Institute, Korea, p 62-66
  16. Shin JS, Jeong YJ (2003) Changes in the components of acetic acid fermentation of brown rice using raw starch digesting enzyme. J Korean Soc Food Sci Nutr, 32, 381-387 https://doi.org/10.3746/jkfn.2003.32.3.381
  17. Han EH, Lee TS, Noh BS, Lee DS (1997) Quality characteristics in mash of Takju prepared by using different Nuruk during fermentation. Korean J Food Sci Technol, 29, 555-562
  18. Kim SC, Kim HS, Kang TJ (1999) Changes of components in the rice-porridge fermented by Nuruk. J Korean Soc Food Sci Nutr, 28, 1017-1021
  19. Shin JS, Lee OS, Jeong YJ (2003) Changes in the components of onion vinegars by two stages fermentation. Korean J Food Sci Technol, 34, 1079-1084
  20. Jeong YJ, Seo JH, Lee GD, Park NY, Choi TH (1999) The quality comparison of apple vinegar by two stages fermentation with commercial apple vinegar. J Korean Soc Food Sci Nutr, 28, 353-358

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  2. Exploring nuruk aroma; Identification of volatile compounds in commercial fermentation starters vol.25, pp.2, 2016, https://doi.org/10.1007/s10068-016-0054-2
  3. 으뜸도라지 식초의 저장기간별 품질 특성 및 항산화 활성 vol.31, pp.4, 2018, https://doi.org/10.9799/ksfan.2018.31.4.549