DOI QR코드

DOI QR Code

Quality characteristics of takju by different method of rice pre-treated

밑술 담금 방법을 달리한 탁주의 품질 특성

  • Lee, Dae-Hyoung (Gyeonggi-do Agricultural Research Extension Services) ;
  • Seo, Jae-Soon (Gyeonggi-do Agricultural Research Extension Services) ;
  • Shin, Bok-Eum (Gyeonggi-do Agricultural Research Extension Services) ;
  • Lee, Yong Seon (Gyeonggi-do Agricultural Research Extension Services) ;
  • Cho, Chang Hui (Gyeonggi-do Agricultural Research Extension Services)
  • 이대형 (경기도농업기술원 작물연구과) ;
  • 서재순 (경기도농업기술원 작물연구과) ;
  • 신복음 (경기도농업기술원 작물연구과) ;
  • 이용선 (경기도농업기술원 작물연구과) ;
  • 조창휘 (경기도농업기술원 작물연구과)
  • Received : 2021.06.29
  • Accepted : 2021.07.23
  • Published : 2021.10.31

Abstract

In this study, we analyzed three rice pre-treatment methods for the preparation of mit-sool (first mashing), with godubap (steamed rice), beombeok (undercooked porridge), and juk (porridge). The results can provide basic data for the development of takju with improved quality. In terms of the base alcohol, godubap produced the highest amount of alcohol (8.1%) after two days, followed by beombeok and juk. After two days of fermentation, soluble solids were measured at 15.3, 15.1, and 1.4°Brix in beombeok, juk, and godubap, respectively, The glucose content of godubap did not change significantly; however, the maltose content increased. In beombeok, maltose decreased from 16.48 mg/mL on the initial day 0 to 1.27 mg/mL on day 9. In juk, glucose and maltose increased from 14.05 and 11.49 mg/mL on day 0 to 31.39 and 42.53 mg/mL on day 2, respectively. Succinic acid levels increased in the godubap and beombeok mit-sool. However, succinic acid was not detected in godubap and juk during the initial stage of fermentation, and lactic acid was not detected in beombeok mit-sool. During the fermentation stage of deot-sool (second mashing), the highest alcohol content of takju made with godubap alcohol was 18.0% and the lowest alcohol content was 15.1% in beombeok on day 9. The total acidity was as high as 0.54% for beombeok, 0.41% for juk, and 0.39% for godubap. In the flavor analysis, ethyl caprate and ethyl caprylate, which were high on day 0 in godubap, decreased upon the completion of fermentation on day 9. Banana-flavored isoamyl alcohol content increased. For juk, ethyl caprate and ethyl caprylate, which were high on day 0, decreased on day 9. Flavor components, such as ethyl palmitate and ethyl linoleate were increased.

본 연구에서는 쌀 전처리 방법인 고두밥, 범벅, 죽으로 만드는 밑술 및 덧술의 발효 유형을 분석하여 품질이 향상된 다양한 탁주 개발의 기초 자료로 활용하고자 하였다. 밑술의 경우 알코올은 2일 후 고두밥에서 가장 높은 8.1%가 생성되었으며 다음으로 범벅, 죽 순이었다. 가용성 고형분(°Brix)는 발효 2일차에 죽, 고두밥, 범벅 순으로 15.3, 15.1, 1.4°Brix를 나타내었다. 고두밥의 glucose의 함량은 크게 변하지 않았으나 maltose 함량은 증가하였고 범벅의 경우 초기 0일차에는 maltose가 16.48 mg/mL에서 1.27 mg/mL로 감소하였다. 죽의 경우 0일에는 glucose와 maltose가 14.05, 11.49 mg/mL에서 2일차에는 31.39, 42.53 mg/mL로 증가하였다. 고두밥과 범벅 밑술에서 succinic acid가 증가하였으며 고두밥과 죽 밑술은 발효 초기에 검출이 안되었던 lactic acid가 분석된 반면 범벅 밑술에서는 lactic acid가 검출되지 않았다. 덧술 발효에서는 고두밥 밑술로 만든 탁주의 알코올이 9일에 18.0%로 가장 높았으며 범벅이 15.1%로 가장 낮았다. 산도는 범벅이 0.54%로 높았으며 죽은 0.41%, 고두밥은 0.39%를 나타내었다. 범벅의 총 유기산 증가가 가장 많았으며 고두밥의 총 유기산 증가가 가장 적었다. 향기에서는 고두밥의 경우 0일차에 높은 area %를 가졌던 ethyl caprate 및 ethyl caprylate가 9일 발효 완료시 감소하였으며 바나나향이 나는 isoamyl alcohol은 증가하였다. 죽의 경우도 유사하게 0일차에 높게 생성되었던 ethyl caprate, ethyl caprylate 등은 9일차에 감소하였으며 ethyl palmitate, ethyl linoleate 등의 향기 성분은 증가하였다.

Keywords

References

  1. An JO. Characteristics of korean rice liquor made from different rice pre-treatments. PhD thesis, Sejong University, Seoul, Korea (2018)
  2. Cho JC, Cho SH, Kim YJ, Joung KH. Quality characteristics of mitsool using Juk, gumong-dduk, baksulgi, godu-bab. pp. 1064-1067. In: The Korea Academia-Industrial Cooperation Society 2011 Spring Symposium Proceeding. May 27, Chonbuk National University, Jeonju, Korea. The Korea Academia-Industrial cooperation Society Monthly, Cheonan-city, Korea (2011)
  3. Choi JH, Lim BR, Kang JE, Kim CW, Kim YS, Jeong ST. Changes in microbial community and physicochemical characterization of Makgeolli during fermentation by yeast as a fermentation starter. Korean J. Food Sci. Technol. 52: 529-537 (2020) https://doi.org/10.9721/KJFST.2020.52.5.529
  4. Chung RW. Physicochemical properties of traditional liquor with different brewing method of Mit-sool. J. Korean Soc. Food Cult. 30: 377-386 (2015) https://doi.org/10.7318/KJFC/2015.30.3.377
  5. Han EH, Lee TS, Noh BS, Lee DS. Quality characteristics in mash of takju prepared by using different nuruk during fermentation. Korean J. Food Sci. Technol. 29: 555-562 (1997)
  6. Hong SB, Lee M, Kim DH, Varga J, Frisvad JC, Perrone G, et al.. Aspergillus Luchuensis, an industrially important black Aspergillus in East Asia. PLoS One 8: e63769 (2013) https://doi.org/10.1371/journal.pone.0063769
  7. Jeong C, Park CS, Yeo SH, Jo HC, Noh BS. Brewing Science. Soohaksa Press. Seocho-gu. Seoul. Korea. pp. 223-227 (2015)
  8. Kim EJ, Ahn JS, Kang DO. Characterization of sporulation-specific glucoamylase of Saccharomyces diastaticus. J. Life Science 20: 683-690 (2010) https://doi.org/10.5352/JLS.2010.20.5.683
  9. Kim GW, Kim JH, Noh BS, Ahn BH, Yeo SH, Cho HH. Makgeolli and yakju science and applicaton. Soohaksa Press. Seocho-gu. Seoul. Korea. pp. 121-160 (2012)
  10. Kim YT, Kim JH, Yeo SH, Lee DH, Im JU, Jeong ST, et al. Woorisool treasure house. Foundation of Agri. Tech. Commercialization & Transfer, Suwon. Kyeonggi. Korea. 146-181 (2011)
  11. Lee DH, Kang HY, Lee YS, Cho CH, Kim SJ, Lee JS. Analysis of major flavor compounds in takju mash brewed with a modified nuruk. Korean J. Microbiol. Biotechnol. 39: 274-280 (2011)
  12. Lee DH, Kim JH, Lee JS, Lee DS. Effect of pears on the quality and physiological functionality of makgeoly. Korean J. Food & Nutr. 22: 606-611 (2009)
  13. Lee JH, Kim GW, Shim JY. Characteristics of makgeolli Sul-dut by pre-treatment of rice and koji. Food Engineering Progress. 18: 50-59 (2014) https://doi.org/10.13050/foodengprog.2014.18.1.50
  14. Lee JS, Lee TS, Noh BS, Park SO. Quality characteristics of mash of takju prepared by different raw materials. Korean J. Food Sci. Technol. 28: 330-336 (1996)
  15. Lee OS, Jeong YJ, Ha YD, Kim K, Shin JS, Kwon H. Monitoring of alcohol fermentation condition with brown rice using raw starch-digesting enzyme. Korean J. Postharvest Sci. Technol. 8: 412-418 (2001)
  16. Lee YS. Analysis of major flavor compounds in takju mash brewed with a modified nuruk. Korean J. Food & Nutr. 12: 421-426 (1999)
  17. Park CS. Sensory characteristics and volatile compounds analysis of commercial sterilized makgeolli. MS thesis, Sejong University, Seoul, Korea (2013)
  18. Shin JS, Lee OS, Kim KE, Jeong YJ. Monitoring of alcohol fermentation condition of brown rice using raw starch digesting enzyme. J. Korean Soc. Food Sci. Nutr. 32: 375-380 (2003) https://doi.org/10.3746/JKFN.2003.32.3.375
  19. So MH. Aptitudes for takju brewing of wheat flour nuruks made with different mold species. Korean J. Food Nutr. 8: 6-12 (1995)
  20. So MH. Improvement in the quality of takju by the combined use of Aspergillus kawachii and Aspergillus oryzae. Korean J. Food Nutr. 4: 115-124 (1991)
  21. Song JC, Park HJ. Takju brewing using the uncooked germed brown rice at second stage mash. Korean J. Food Sci. Nutr. 32: 847-854 (2003) https://doi.org/10.3746/jkfn.2003.32.6.847
  22. Song JY. Quality characteristics of takju prepared by blended starchy materials. MS thesis, Seoul Women's University, Seoul, Korea (1998)
  23. Technical Service Institute, National Tax Service Administration. Alcoholic liquors Quality technic of field. Technical Service Institute. National Tax Service Administration. Seoul. Korea (2008)