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

  • 제30권3호
  • /
  • Pages.460-465
  • /
  • 2001
  • /
  • 1226-3311(pISSN)
  • /
  • 2288-5978(eISSN)
한국식품영양과학회 (The Korean Society of Food Science and Nutrition)
권호 표지

농축 사과주스를 이용한 식초 발효조건의 최적화

Optimization of the Vinegar Fermentation Using Concentrated Apple Juice

  • 서지형 (경북과학대학 첨단발효식품과) ;
  • 이기동 (경북과학대학 첨단발효식품과) ;
  • 정용진 (계명대학교 식품가공학과)
  • 발행 : 2001.06.01
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초록

농축사과주스의 효율적 활용을 위하여 반응표면분석으로 사과식초 발효조건을 알콜발효 및 초산발효 2단계로 구분하여 최적화 및 모니터링하였다. 알콜발효에서 최대 알콜함량을 나타내는 조건은 초기당도 $18.56\;^{\circ}Brix$, 교반속도 61.99 rpm 및 발효시간 67.32 hr으로 나타났으며, 초산발효에서 총산이 최대치를 나타내는 조건은 교반속도 201.53 rpm, 발효시간 179.42 hr으로 나타났다. 예측된 알콜발효 및 초산발효 최적 조건으로 발효를 행한 결과 총산 7.8%의 사고식초를 생산할 수 있었다. 알콜발효 과정에서 malic acid 함량이 가장 높았으며, 시간이 경과됨에 따라 lactic acid가 증가하였다. 초산발효 과정에서는 acetic acid가 급격히 증가하였으며, malic acid 함량은 거의 변화가 없었다.

To prepare vinegar using concentration apple juice, response surface methodology (RSM) was applied to optimize and monitor the vinegar fermentation properties by two stage fermentation. In the first stage, the optimum conditions for maximum alcohol contents were 18.56。Brix of initial sugar concentration, 61.96 rpm of agitation rate and 67.32 hr of fermentation time. The optimum condition for maximum acidity in the second stage (vinegar fermentation) were 201.53 rpm of agitation rate and 179.42 hr of fermentation time. Malic acid content was the highest and its content little changed during acetic acid fermentation. Lactic acid content increased a little during alcohol fermentation. Acetic acid content apparently increased during acetic acid fermentation.

키워드

참고문헌

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