The Korean Journal of Community Living Science (한국지역사회생활과학회지)

The Korean Society of Community Living Science (한국지역사회생활과학회)
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Bioavailability of Starfish Calcium as a Novel Calcium Source

칼슘급원으로서의 불가사리 칼슘의 체내이용성

  • Lee Yeon Sook (Department of Food & Nutrition, Seoul National University, Research Institute of Human Ecology, Seoul National University, Seoul, Korea) ;
  • Moon Ji Young (Department of Food & Nutrition, Seoul National University, Research Institute of Human Ecology, Seoul National University, Seoul, Korea) ;
  • Jang Soo Jung (Department of Food & Nutrition, Seoul National University, Research Institute of Human Ecology, Seoul National University, Seoul, Korea)
  • 이연숙 (서울대학교 식품영양학과ㆍ생활과학연구소) ;
  • 문지영 (서울대학교 식품영양학과ㆍ생활과학연구소) ;
  • 장수정 (서울대학교 식품영양학과ㆍ생활과학연구소)
  • Published : 2005.03.01
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Abstract

This study was conducted to investigate the bioavailability of calcium derived from starfish as a new calcium source. Four-week old Sprague-Dawley female rats were divided 6 groups. The rats were received experimental diets containing two kinds of Ca sources, CaCO₃ or starfish, and three levels of Ca, low (0.1 %), medium (0.5%) and high (1.0%), respectively, for 6 weeks. The parameters which related to Ca bioavailability were measured : Serum Ca concentration, Alkaline phosphatase(ALP) and GOT activities ; tissue Ca contents, bone dimension and Ca, P, Mg contents; Ca retention and apparent absorption. Starfish Ca-fed rats did not show any difference from CaCO₃-fed rats in terms of growth, food intake and FER. Serum Ca, ALP and GOT activities as well as tissue Ca contents were not different between CaCO₃- and starfish Ca-fed groups. Although dimension of femur and lumbar was not different between CaCO₃- and starfish Ca-fed rats, ash content was high in starfish Ca-fed rats. Ca and P contents of femur and lumbar were not different between both groups. Starfish Ca-fed groups showed higher Mg contents than CaCO₃-fed groups in both femur and lumbar. Ca absorption rate and retention rate were significantly higher in starfish Ca-fed rats. These results indicate that Ca derived starfish did not show any negative effect on growth and Ca metabolism of rats compared to calcium carbonate. Starfish Ca can be recommended as a good Ca source on the basis of higher Ca absorption and bioavailability.

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