Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Changes of the Flavonoids in Onion Vinegar Fermented with Onion Juice and Ethanol

주정을 첨가한 양파식초 제조에서 Flavonoids의 함량변화

  • Cheun Kyung-Sun (Department of Food Engineering and Food Industrial Technology Research Center, Mokpo National University) ;
  • Kang Seong-Gook (Department of Food Engineering and Food Industrial Technology Research Center, Mokpo National University) ;
  • Kang Seong-Koo (Department of Food Science and Technology, Sunchon National University) ;
  • Jung Soon-Teck (Department of Food Engineering and Food Industrial Technology Research Center, Mokpo National University) ;
  • Park Yang-Kyun (Department of Food Engineering and Food Industrial Technology Research Center, Mokpo National University)
  • 천경선 (목포대학교 식품공학과 및 식품산업기술연구센터) ;
  • 강성국 (목포대학교 식품공학과 및 식품산업기술연구센터) ;
  • 강성구 (순천대학교 식품과학부) ;
  • 정순택 (목포대학교 식품공학과 및 식품산업기술연구센터) ;
  • 박양균 (목포대학교 식품공학과 및 식품산업기술연구센터)
  • Published : 2005.12.01
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Abstract

To produce a flavonoid-enriched vinegar from onion, vinegar fermentations of onion juice, extraction of flavonoids from onion-dry scale, and change of the flavonoids in vinegar were investigated. Alcohol and vinegar fermentations from the onion juice were effectively improved by using the onion juice heated at $80^{\circ}C$ for 10 min. When various types of onion juices were used for onion vinegar production, the vinegar fermentation of heat-treated onion juice containing $4\%$ ethyl alcohol showed maximal acid production. Flavonoid compounds in onion vinegar made from fresh onion juice was larger than the other onion vinegar. To produce a flavonoid-enriched vinegar, when it was examined the $05\%$ onion-dry scale was added to $6\%$ acetic acid, optimum extraction time was 90 min. And by adding $0.5\%$ onion-dry scale to onion vinegar, quercerin monoglucoside and quercetin contents increased.

양파의 냄새를 줄이고 기능성을 살린 식초의 제조를 위한 기초 연구의 일부로서 양파즙에 보당하여 알콜 발효하는 대신에 알콜 발효 없이 양파즙에 에탄올을 첨가한 양파식초의 제조에서 flavonoid 물질의 함량변화, flavonoids를 강화한 양파식초의 제조방법 및 이들 물질의 초산에 대한 안정성을 조사하였다. 양파즙의 식초발효에서 $80^{\circ}C$, 10분 열처리하여 착즙한 양파액에 $4\%$ 에탄올을 첨가한 양파식초에서 초산생성량이 높았다. Flavonoids의 함량은 생양파즙을 사용한 식초에서 가장 많았다. 양파껍질의 flavonoid성분 추출을 위해 $6\%$ 초산액에서 $20^{\circ}C$, 140 rpm으로 교반추출시에 90분 처리가 적절하였고, 이것을 양파식초에 첨가한 결과 quercetin monoglucoside와 quercetin의 함량이 증가하였다. 양파식초에서 flavonoids의 안정성은 quercetin diglucoside가 quercetin monoglucoside에 비해 안정하였고 quercetin 배당체마다 산에 의한 영향이 차이가 있음을 알 수 있었다.

Keywords

References

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