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반응표면분석에 의한 복숭아주 발효 최적화

Optimization of Peach Wine Fermentation by Response Surface Methodology

  • 이기동 (중부대학교 식품생명과학과)
  • Lee, Gee-Dong (Department of Food Science and Biotechnology, Joongbu University)
  • 투고 : 2014.10.22
  • 심사 : 2014.12.05
  • 발행 : 2015.04.30

초록

복숭아를 이용하여 향미가 우수한 고품질의 복숭아주를 제조하고자 중심합성계획에 따른 실험조건으로 복숭아 과즙을 발효시켜 발효조건에 따른 품질 특성을 모니터링하고 최적 발효조건을 설정하였다. 복숭아주 발효에 따른 알코올 함량은 범위가 3.4~9.2%이고 $R^2$가 0.9229(P<0.01)였으며, 초기 당도 $18.73^{\circ}Brix$, 발효온도 $16.81^{\circ}C$, 발효시간 12.99 day일 때 8.54%로 가장 높게 나타났다. 산도의 범위는 0.30~0.74%이고 $R^2$는 0.8634(P<0.05)였으며, 초기 당도 $15.11^{\circ}Brix$, 발효온도 $17.09^{\circ}C$, 발효시간 13.61 day일 때 0.25%로 가장 낮게 나타났다. 발효 후 잔당 함량은 초기 당도 $17.79^{\circ}Brix$, 발효온도 $20.63^{\circ}C$, 발효시간 3.37 day일 때 $6.67^{\circ}Brix$로 가장 많이 잔존하였다. 그리고 복숭아주의 황색도(b값)는 초기 당도 $13.19^{\circ}Brix$, 발효온도 $20.81^{\circ}C$, 발효시간 12.81 day일 때 18.92로 가장 높은 값을 나타내었다. 복숭아주의 최적 발효조건을 설정해 본 결과, 발효조건은 $19^{\circ}Brix$ 정도의 복숭아 과즙을 이용하여 상대적으로 $20^{\circ}C$ 이하의 낮은 온도에서 9일 정도 발효하는 것이 가장 적당하였다.

To prepare peach wine using peach juice, fermentation properties were monitored, and fermentation conditions (initial sugar concentration, temperature, and time) were optimized by a response surface methodology. Alcohol content for peach wine fermentation ranged from 3.4~9.2% [$R^2=0.9229$ (P<0.01)] and 8.54% (maximum value) at $18.73^{\circ}Brix$, $16.81^{\circ}C$, and 12.99 day. Acidity ranged from 0.30~0.74%, and 0.25% (minimum value) at $15.11^{\circ}Brix$, $17.09^{\circ}C$, and 13.61 day. Residual sugar concentration was $6.67^{\circ}Brix$ (maximum residual sugar content) at $17.79^{\circ}Brix$, $20.63^{\circ}C$, and 3.37 day. Yellow color intensity was 18.92 (maximum Hunter's color b value) at $13.19^{\circ}Brix$, $20.81^{\circ}C$, and 12.81 day. Based on the above study results, optimization conditions for peach wine fermentation were 9 days, below $20^{\circ}C$, and $19^{\circ}Brix$ peach juice.

키워드

참고문헌

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