Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
권호 표지

Fermentation and Quality Characteristics of Kimchi Prepared Using Various Types of Maesil(Prumus mume Sieb. et Zucc)

매실의 첨가 형태에 따른 배추김치의 발효 및 품질 특성

  • Kim, Gyu-Ran (Department of Food Service & Technology, Catholic University of Daegu) ;
  • Park, La-Young (Department of Food Service & Technology, Catholic University of Daegu) ;
  • Lee, Shin-Ho (Department of Food Service & Technology, Catholic University of Daegu)
  • 김규란 (대구가톨릭대학교 외식식품산업학부) ;
  • 박나영 (대구가톨릭대학교 외식식품산업학부) ;
  • 이신호 (대구가톨릭대학교 외식식품산업학부)
  • Received : 2009.10.26
  • Accepted : 2010.02.26
  • Published : 2010.04.30
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Abstract

The fermentation and quality characteristics of kimchi prepared using various types of maesil, including freshly sliced maesil (FSM), freshly ground maesil (FGM),and dried maesil powder (MP), were investigated during 25-day fermentation at 10C. The pH value decreased rapidly in the control fermentation but only slowly in maesil-supplemented kimchi. Titratable acidity values changed in the same manner. The addition of maesil significantly inhibited the growth of total aerobes, and lactic acid bacteria during fermentation over 10 days. The color (L, a, and b values) of kimchi did not differ between control and maesil-supplemented kimchi samples regardless of maesil type or concentration. Kimchi hardness did not initially differ among the various samples but decreased during fermentation. However, the hardness of maesil-supplemented kimchi was higher than that of control samples. Thus, kimchi supplemented with either 6% (w/w) MP or 6% (w/w) FGM maintained optimal hardness during fermentation. The antioxidant activity of kimchi was increased in a dose-dependent manner by addition of maesil. Kimchi supplemented with 6% (w/w) FGM showed the highest antioxidant activity. The sensory qualities (taste, flavor, color, and overall acceptability) of FSM-supplemented kimchi were better than those of control samples.

매실의 첨가 형태와 첨가량을 달리하여 제조한 김치를 $10^{\circ}C$에서 25일간 저장하면서 김치의 발효 및 품질특성을 조사하였다. 대조구의 pH는 발효 기간이 경과 할수록 급격히 감소하였으나, 매실 첨가구는 서서히 감소하였다. 산도의 변화도 pH와 유사한 경향을 나타내었다. 매실 첨가구는 발효 초기에 미생물의 성장이 다소 지연되었으나, 발효 말기에는 $10^8$ CFU/mL의 균수를 나타내어 대조구와 유사하였다. 김치의 색도는 담금 직후 매실 첨가구는 대조구에 비해 L, a, b값 모두 낮았으며, 매실 첨가 형태 및 첨가 농도에 따른 유의적 차이는 관찰되지 않았다. 발효가 진행됨에 따라 환원당은 감소하였으며, 매실 첨가구가 대조구에 비해 그 감소 정도가 완만하였다. 발효가 진행됨에 따라 경도는 감소하였는데, 전반적으로 대조구에 비해 매실 첨가구가 높은 경도를 유지하였으며, 특히 6% 김치의 항산화 활성은 매실 첨가에 의해 증가하였으며, 발효 기간 동안 항산화 활성은 매실 첨가구가 대조구에 비해 높았다. 특히, 매실분말과 마쇄한 매실 6% 첨가구가 높은 항산화 활성을 유지하였다. 관능검사 결과, 조직감의 강도(아삭아삭한정도)는 매실 첨가구가 대조구보다 높았다. 맛, 풍미, 색, 풍미, 종합적 기호도에 관한 기호성은 매실채 첨가구가 가장 좋았으며, 다음은 마쇄한 매실 첨가구가 순이었으나 두 첨가구간의 유의적 차이는 없었다.

Keywords

References

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