Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Physicochemical Characteristics of Korean Traditional Wines Prepared by Addition of Sorghum (Sorghum bicolor L. Moench) Using Different Nuruks

수수 첨가량 및 누룩을 달리한 발효주의 이화학적 특성

  • Woo, Koan-Sik (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Ko, Jee-Yeon (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Song, Seuk-Bo (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Jae-Saeng (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Oh, Byeong-Geun (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Kang, Jong-Rae (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Nam, Min-Hee (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Ryu, In-Soo (Guardian of Korea's Traditional Wines and Spirits) ;
  • Jeong, Heon-Sang (Dept. of Food Science and Technology, Chungbuk National University) ;
  • Seo, Myung-Chul (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
  • 우관식 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 고지연 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 송석보 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 이재생 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 오병근 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 강종래 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 남민희 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 류인수 (사단법인 한국가양주협회) ;
  • 정헌상 (충북대학교 식품공학과) ;
  • 서명철 (농촌진흥청 국립식량과학원 기능성작물부)
  • Published : 2010.04.30
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Abstract

This study was carried out to compare the physicochemical characteristics of Korean traditional wines fermented by addition of sorghum (Sorghum bicolor) using different nuruks (SH and BS nuruk). The alcohol contents of the fermented wines ranged from 12.36 to 13.21%. The brix degrees of sorghum wines fermented using SH and BS nuruks were $8.6\sim17.9^{\circ}Bx$ and $7.6\sim20.0^{\circ}Bx$ on addition ratio, respectively. Wine no addedsorghum using SH and BS nuruks showed pH 3.74 and 3.40, total acidity of 1.40 and 1.51%, and 0.441 and 0.149 of turbidity. With increase of sorghum addition, brix degree, pH, turbidity and L-value decreased whereas total acidity and a-value increased. Total color difference (${\Delta}Eab$) parameters of wines fermented in 30, 70 and 100% sorghum addition using SH and BS nuruk were 4.33, 6.63 and 26.13, and 4.08, 5.29 and 10.59. Glucose content decreased with increasing amounts of sorghum. Organic acids such as lactic acid and acetic acid were predominantly detected in the fermented wine. Finally, based on sensory evaluations, the wine fermented by BS nuruk showed the best overall quality at 30% sorghum addition.

대표적인 잡곡 중에 하나인 수수의 이용성을 제고하고자 누룩의 종류와 수수첨가량을 달리하여 제조한 발효주의 이화학적 특성을 검토한 결과, 누룩의 종류와 수수첨가량을 달리하여 제조한 발효주의 알코올 함량은 처리구간에 유의적인 차이를 보이지 않았다. 당도는 찹쌀 100%만으로 발효시킨 시료의 경우 SH업체와 BS업체 누룩에서 각각 21.6 및 $22.4\;^{\circ}Bx$로 나타났으며, 수수첨가량이 증가함에 따라 감소하는 경향을 뚜렷하게 보였다. pH는 대조구에서 각각 3.74 및 3.40으로 나타났으며, 수수첨가량이 증가함에 따라 대체적으로 감소하는 경향을 보였고 총 산도는 각각 1.40 및 1.51%로 나타났으며, 수수첨가량이 증가함에 따라 증가하는 경향을 보였다. 탁도를 측정한 결과 대조구에서 각각 0.441 및 0.149로 나타났고 수수첨가량이 증가함에 따라 감소하는 경향을 보여 맑아지는 것을 확인할 수 있었다. 색도를 측정한 결과 수수첨가량에 따라 L-value는 감소하는 경향을 보였으며, a-value는 증가하는 경향을 보였고 b-value는 수수 30% 첨가구에서 높게 나타났으나 이후 감소하는 경향을 보였다. 찹쌀 100% 처리구와 색차를 계산한 결과 SH업체 누룩의 경우 수수 30, 70 및 100% 첨가구와는 각각 4.33, 6.63 및 26.13으로 나타났고 BS업체 누룩은 각각 4.08, 5.29 및 10.59로 증가하는 것으로 나타났다. 유기산 함량을 측정한 결과 lactic acid 및 acetic acid가 주된 구성 유기산임을 확인할 수 있었다. 유리당은 glucose만이 검출되었으며, SH업체 및 BS업체 누룩 대조구에서 각각 7.116 및 7.580%로 나타났고 수수첨가량이 증가할수록 glucose 함량은 감소하여 수수를 100% 첨가하여 제조한 발효주의 경우 검출이 되지 않았다. 관능검사 결과 BS업체 누룩을 이용하여 수수 30%를 첨가한 발효주가 가장 양호한 결과를 나타내었다.

Keywords

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