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감태 첨가가 배추김치의 숙성 중 품질에 미치는 영향

Effect of Ecklonia cava on the Quality Kimchi during Fermentation

  • Lee, Hyun-Ah (Dept. of Food Science and Nutrition, Pusan National University) ;
  • Song, Yeong-Ok (Dept. of Food Science and Nutrition, Pusan National University) ;
  • Jang, Mi-Soon (Food and Safety Research Center, National Fisheries Research & Development Institute) ;
  • Han, Ji-Sook (Dept. of Food Science and Nutrition, Pusan National University)
  • 투고 : 2012.07.27
  • 심사 : 2012.12.04
  • 발행 : 2013.01.31

초록

감태의 첨가량을 달리하여 김치를 제조한 후 $5^{\circ}C$에서 28일 동안 숙성시키면서, pH와 산도, 젖산균수 변화, 환원당 함량, 색도의 변화 및 관능성을 측정하였다. pH 및 산도는 담근 초기에는 감태 첨가량이 많을수록 pH는 낮아지고 산도는 높았다. 그러나 감태 첨가량이 많을수록 pH가 완만하게 감소되어 감태 첨가 김치의 발효숙성이 더디어짐을 알 수 있었다. Leuconostoc sp.와 Lactobacillus sp. 등의 젖산균수는 담금 초기에는 감태 첨가에 따라 큰 차이를 나타내지 않았지만 발효 숙성이 진행됨에 따라 Leuconostoc sp.의 경우 배추김치는 숙성 16일째, 감태 첨가 김치에서는 숙성 20일째까지 그 수가 증가하다가 그 이후에는 완만하게 감소하였다. 환원당 함량에서는 감태의 첨가량이 많을수록 환원당의 함량도 높았으며, 발효가 진행됨에 따라 모든 군에서의 환원당 함량이 감소되었다. 감태 첨가 김치는 발효가 진행될수록 명도가 감소하였고, 감태김치의 적색도는 적숙기까지는 증가하다 감소하는 경향을 나타내었다. 또한, 생김치일 때 관능적 특성을 보면 전체적인 선호도는 감태를 첨가한 것이 첨가하지 않은 배추김치보다 높았고, 감태 첨가량에 따른 선호도는 15%가 가장 높았다. 적숙기 상태의 김치에서도 생김치일 때와 동일하게 감태 15% 첨가 김치의 평가가 가장 좋았다.

To improve kimchi qualities, Ecklonia (E.) cava of 5%, 15% or 25% were added and the qualities investigated by measuring changes in physicochemical, microbiological, and sensory characteristics during fermentation at $5^{\circ}C$. The pH of kimchi with E. cava added decreased and acidity increased. The number of Leuconostoc sp. in kimchi reached its maximum at the optimum fermenting stage, the $16^{th}$ day in control kimchi and the $20^{th}$ day in the kimchi added E. cava. The optimum fermenting stage of the kimchi was retarded due to adding the E. cava. The reducing sugar contents was highest in kimchi with 25% E. cava during the early stage of fermentation. According to Hunter's color values, the lightness of the kimchi with E. cava added decreased during fermentation, while the redness increased as fermentation proceeded. The sensory scores for overall acceptance, taste, texture and appearance were highest in kimchi with 15% E. cava.

키워드

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