한국식품저장유통학회지 (Food Science and Preservation)

  • 제24권2호
  • /
  • Pages.215-220
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  • 2017
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  • 3022-5477(pISSN)
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  • 3022-5485(eISSN)
한국식품저장유통학회 (The Korean Society of Food Preservation)
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단기저장 절단배추 김치의 품질 특성

Quality characteristics of kimchi prepared with cut Kimchi cabbages during the short-term storage

  • Son, Eun Ji (School of Food Science and Biotechnology, Kyungpook National University) ;
  • Kim, Sang Seop (Food Distribution System Research Group, Korea Food Research Institute) ;
  • Chung, Shin-Kyo (School of Food Science and Biotechnology, Kyungpook National University)
  • 투고 : 2016.11.22
  • 심사 : 2017.03.31
  • 발행 : 2017.04.30
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초록

난각칼슘 용액(0.5% 난각칼슘+0.5% 구연산)에 배추를 침지하고 탈수한 후, 절단($3{\times}3cm$)하여 2주 동안 $4^{\circ}C$에 저장하고 이를 이용하여 김치를 제조하여 이화학적인 특성과 관능적 품질특성을 조사하였다. 절단배추의 중량은 저장기간이 지남에 따라 유의적으로 낮아졌으며(p<0.05), NT에 비하여 ET의 중량 감소율이 낮았다. 가용성 고형분 함량은 NT와 ET 모두 감소하였으며, 유의차는 나타나지 않았다(p<0.05). 적정산도의 변화를 측정한 결과, 저장 기간 동안 유의적인 변화는 나타나지 않았다(p<0.05). pH는 저장기간 동안 증가하다가 감소하는 경향을 보였지만, 결과적으로 NT의 pH가 유의적으로 증가한 것과 달리 ET의 pH는 감소하였다(p<0.05). NT와 ET의 외관을 비교한 결과 초기에는 NT가 우수하였으나, 저장 2주 후에는 NT에 비하여 ET의 외관이 밝고 깨끗하였다. 저장한 절단배추를 이용하여 김치를 제조하여 이화학적 품질특성을 측정한 결과, 가용성 고형분 함량은 CON, ET-K, NT-K 순으로 높았으나 유의적인 차이를 나타내지 않았다(p<0.05). 적정산도 또한 유의적인 차이를 나타내지 않았으나, 그 값은 NT-K, ET-K가 비슷한 값을 나타내었으며, CON이 더 낮은 함량을 보였다. pH의 경우, NT-K가 더 낮은 pH 값을 보였으며, CON과 ET-K는 유의적인 차이를 나타내지 않았다(p<0.05). 관능검사 결과, 숙성 기간에 따라 모든 구에서 외관은 색에 대한 기호도와 절임상태 모두 감소하였으며, 냄새는 젓갈내가 유의적인 차이를 보이며 감소하였고, 신내의 경우 ET-K가 NT-K에 비해 낮은 값을 보였다. 조직감은 ET-K가 유의적인 감소를 보였으나, CON, NT-K와의 유의적인 차이는 나타나지 않았다. 향미는 짠맛과 젓갈맛이 증가한 반면, 생배추맛, 쓴맛, 탄산맛은 감소하였다. 전반적으로 난각칼슘을 처리 절단배추 김치(ET-K)는 일반 배추김치(CON)와 관능적으로 유의적인 차이를 나타내지 않았다(p<0.05). 난각칼슘을 처리하여 단기간 저장한 절단배추를 이용하여 품질이 양호한 김치 제조가 가능한 것으로 사료된다.

Cut Kimchi cabbages ($3{\times}3cm$) were dipped in the egg shell solution (0.5% egg shell calcium/0.5% citric acid solution) and stored in the low-density polyethylene (LDPE) film bag at $4^{\circ}C$ for 2 weeks. Using this cut Kimchi cabbage, kimchi was prepared and their physicochemical qualities were investigated. Moreover, their sensory qualities were compared with Kimchi prepared with normal Kimchi cabbages. Egg shell calcium pretreatment (ET) showed the lower weight loss of cabbages than non-treatment (NT), and soluble solid compounds were decreased in all samples. Titratable acidity showed no statistical difference. After making a kimchi using cut Kimchi cabbages stored for 2 weeks no statistical differences in soluble solids and titratable acidities of kimchi stored for 7 days were shown. As a result of sensory test, preference of color was decreased and salted condition of control was the most significantly decreased. Pickled seafood odor of kimchi showed statistical difference, compared with the control. Crispness decreased in all samples. On the other hand, salty flavor and pickled seafood flavor were increased, fresh cabbage flavor, bitter flavor and carbonic flavor were decreased. Overall sensory quality of cut Kimchi cabbage (ETK) didn't show significant difference compare with kimchi prepared with normal cabbage (CON). It is possible to make kimchi with approvable sensory quality using cut Kimchi cabbage treated with egg shell calcium.

키워드

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