Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Study of the Antioxidant and Alcohol-degrading Enzyme Activities of Soybean Sprout Sugar Solutions

콩나물 당 침지액의 항산화 효능 및 알코올 분해 효소 활성 연구

  • Kim, Kyoung Mi (Department of Research and Development, Food Research Institute, Jeonnam Bioindustry Foundation) ;
  • Jung, Hyun Jung (Department of Research and Development, Food Research Institute, Jeonnam Bioindustry Foundation) ;
  • Sung, Hea Mi (Department of Research and Development, Food Research Institute, Jeonnam Bioindustry Foundation) ;
  • Wee, Ji-Hyang (Department of Research and Development, Food Research Institute, Jeonnam Bioindustry Foundation) ;
  • Kim, Tae Yong (eJoeunSanso, Co., Ltd.) ;
  • Kim, Ki Myong (Department of Food and Nutrition, Honam University)
  • 김경미 ((재)전남생물산업진흥원 식품산업연구원) ;
  • 정현정 ((재)전남생물산업진흥원 식품산업연구원) ;
  • 성혜미 ((재)전남생물산업진흥원 식품산업연구원) ;
  • 위지향 ((재)전남생물산업진흥원 식품산업연구원) ;
  • 김태용 (이조은산소(주)) ;
  • 김기명 (호남대학교 식품영양학과)
  • Received : 2014.05.03
  • Accepted : 2014.08.12
  • Published : 2014.10.31
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Abstract

The antioxidant and alcohol-degrading enzyme activities of soybean sprout sugar solutions (oligosaccharide and sucrose, $50^{\circ}Bx$) were characterized under different soaking conditions. The ratio of sugar solution to sprout content was 25%, 50%, and 75% (w/w), and the soaking times studied were 1, 3, 6, 12, and 24 h. Higher 1,1-diphenyl-2-pycrylhydrazyl (DPPH) radical-scavenging activity was detected in case of the oligosaccharide solution, compared to the sucrose solution. A similar tendency was observed for alcohol-degrading enzyme activity. When the ratio of sugar solution to sprout content was 50% (w/w), the total phenol and flavonoid contents were found to be higher, compared to those observed at 20% (w/w). However, we did not observe a significant difference between 50% and 75% (w/w). Soaking time did not significantly affect the antioxidant and alcohol-degrading enzyme activities of the solutions. As a result, when oligosaccharide solution was used for soaking soy sprouts at a ratio of >50% (w/w), higher antioxidant and alcoholdegrading enzyme activities were observed.

콩나물은 숙취해소에 좋은 식품으로 잘 알려져 있으나 콩나물 특유의 비린 맛으로 인해 가공식품 원료로 이용하기에 어려움이 있다. 이에 숙취해소효과로 잘 알려진 설탕 및 올리고당과 같은 당을 이용하여 콩나물의 비린 맛을 없애고 섭취를 용이하게 하며 항산화 효과 증진 및 숙취해소에 긍정적인 효과를 기대하고 실험을 설계하였다. 콩나물에 설탕과 올리고당의 2종류 당액($50^{\circ}Bx$)을 25, 50, 75%(w/w) 비율로 첨가하여 1, 3, 6, 12, 24시간 침지하였으며, 침지한 콩나물의 여액을 여과하여 콩나물 당침용액을 샘플로 사용하였다. 세포내 산화적 스트레스 억제 효과를 제외한 모든 실험 결과에서 올리고당이 대조구나 설탕 침지보다 DPPH radical 소거능, 알코올 분해능이 좋은 것을 확인하였다. 총페놀, 총플라보노이드 함량 및 ADH ALDH 효소 활성 실험 결과, 당액 첨가비율 25%에 비해 50%에서 유의적으로 높은 활성을 띄었고, 50%와 75%에서는 유의적인 차이가 발생하지 않았다. 추출시간에 따른 항산화능과 알코올 분해능은 시간 증가에 따른 일정한 증가 추세는 나타나지 않았다. 추출 시간만을 고려하였을 때, DPPH radical 소거능 및 총페놀, 플라보노이드 함량과 알코올 분해능 실험에서 1-3시간 추출 시 대부분 대조구보다 높은 활성을 보였고 추출 시간이 길어질수록 오히려 활성이 떨어지는 경우가 더 많았다. 이러한 결과를 종합할 때 콩나물을 올리고당 당액($50^{\circ}Bx$) 50% (w/w) 비율 이상의 수준에서 단시간 침지하여 추출하는 것만으로도 항산화능과 알코올 분해능이 좋은 콩나물 추출액을 얻을 수 있을 것으로 판단된다. 본 연구를 통하여 콩나물을 이용한 숙취해소 음료를 제조하기 위하여 과량의 당액을 사용함으로서 발생할 수 있는 비용적인 절감의 근거를 마련할 수 있을 것으로 생각된다.

Keywords

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