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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Effect of Water Extracts of Shellfish Shell on Fermentation and Calcium Content of Kimchi

김치의 숙성과 칼슘함량에 미치는 조개류 껍질 물추출물 첨가효과

  • 김미정 (신성대학교 호텔식품계열) ;
  • 김미향 (대구가톨릭대학교 식품산업학부) ;
  • 김순동 (대구가톨릭대학교 식품산업학부)
  • Published : 2003.03.01
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Abstract

This study attempted to fortify Kimchi with water extracts of shells of shellfishes (corb shell, short neck clam, taste clam, ark shell, top shell, oyster) as natural resource of calcium. Kimchi added with the shell extracts in 5% were fermented at 1$0^{\circ}C$ with measurements in chemical, microbiological and sensory qualities. Calcium content of shellfish shells before water extraction was in the range of 25.57~38.78%. Kimchi added with the extracts showed higher pH, lower acidity, lower total aerobic bacterial count and higher lactic acid bacteria count compared to control Kimchi without any addition. After 7 day fermentation the Kimchi added with the extracts also showed higher ash and calcium contents compared to control products (3.3~5.0 vs. 2.8~3.0% and 300~376 vs. 70~95 mg%). Kimchi with oyster shell extract gave the most pronounced effect in ash and calcium contents. The addition of extract made Kimchi crisper and less sourer oganoleptically. In the overall acceptability, the Kimchi fortified with the shell extracts were better than control after 14 day fermentation.

천연의 칼슘자원인 조개류 껍질 물추출물을 사용하여 보존성이 높고 체내 흡수력이 양호한 젖산칼슘의 함량이 높은 김치의 제조를 시도하였다. 시료는 꼬막, 맛조개, 모시조개, 바지락, 굴 및 소라껍질의 물 추출물을 사용하였으며 절임배추에 대하여 5%를 첨가하여 1$0^{\circ}C$에서 숙성시켰다. 조개류 껍질의 칼슘함량은25.57~38.78%이었다. 조개류 껍질 물추출물을 첨가한 김치의 pH는 전 숙성 기간을 통하여 대조구보다 높았으며 산도는 특히 숙성 후기 에 낮았다. 총 균수는 조개 껍질 물추출물 첨가구가 대조구보다 낮았으나 젖산균수는 첨가구에서 높았다. 숙성 7일 이후의 조회분 함량은 첨가구 (3.31~4.99%)가 대조구(2.75~3.01%)넓다 높았다. 칼슘의 함량은 첨가구(300.2~376.0 mg%)가 대조구(69.9~95.0mg%) 보다 높았으며, 그 중에서도 굴 껍질과 모시조개 껍질 물추출물을 첨가한 김치에서 높았다. 조개류 껍질 물추출물을 첨가한 김치는 대조구에 비하여 아삭아삭한 조직감(crispiness)이 높은 반면 산미는 약했으며, 종합적 인기호도는 담금일 에는 차이를 보이지 않았으나 숙성 14일 이후에는 전반적으로 첨가구에서 높았다.

Keywords

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