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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Estimated Availability and Major Minerals (Ca, P and Mg) Contents Bound Neutral Detergent Fiber (NDF) of Seaweeds

해조류 NDF에 결합된 주요 무기질(Ca, P, Mg)의 함량 분석 및 추정 이용률

  • Kwak, Yeon-Hwa (Dept. of Food Science, Dong-A University) ;
  • Bai, Sung-Chul (Dept. of Marine Bio-materials and Aquaculture, Pukyong National University) ;
  • Kim, Dae-Jin (Dept. of Food Science, Dong-A University)
  • 곽연화 (동아대학교 식품과학부) ;
  • 배승철 (부경대학교 해양바이오신소재학과) ;
  • 김대진 (동아대학교 식품과학부)
  • Received : 2010.04.07
  • Accepted : 2010.06.08
  • Published : 2010.07.31
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Abstract

This study was aimed to evaluate the estimated availabilities and contents of major minerals (Ca, P, and Mg) in seven different seaweeds using the neutral detergent fiber (NDF) which could bind minerals. The estimated availability was calculated by subtracting the NDF-bound major mineral contents from the total major mineral contents of seaweeds. Average estimated availability of Ca, P, and Mg contents of seven seaweeds were 96.31, 73.24, and 96.79%, respectively. These results may suggest that seaweeds could be one of the good sources of major minerals for human nutrition because of their high average estimated availabilities of Ca, P, and Mg.

해조류는 다당류인 수용성 식이섬유와 무기질의 공급원으로 그 필요성이 증대되고 있다. 그러나 인간이나 단위 동물에 있어서는 해조류의 세포벽물질을 분해할 수 있는 효소를 갖고 있지 않은 것으로 알려져 있어 이에 결합된 무기질은 인체 내 소화가 대부분 되지 않는다. 따라서 본 연구는 해조류의 무기질 함량을 측정하고, 해조류 다당류인 세포벽 물질(NDF, netural detergent fiber)에 결합된 다량 무기질인 Ca, P, Mg을 측정하여, 원래 해조류에 함유되어 있던 무기질 함량에서 NDF에 결합된 무기질의 함량을 감한 후 계산하여 실질적인 해조류의 무기질 추정 이용률을 산정하였다. Ca과 Mg의 경우, NDF에 결합된 무기질의 평균 함량은 각각 77.59, 45.62 mg/100 g NDF로 모두 96% 이상의 높은 추정 이용률을 보였고, P의 경우에는 NDF에 결합된 무기질의 함량이 많아 그 추정 이용률은 73.24%로 비교적 낮았다. P의 경우, NDF에 결합된 함량이 비교적 높았지만 70% 이상이 실질적으로 소화되어 이용가능하며, Ca과 Mg은 모두 96% 이상의 높은 추정 이용률을 보여 대부분의 무기질이 실질적으로 소화되어 이용되는 것으로 보인다. 따라서 해조 다당류인 수용성 식이섬유와 무기질의 급원으로 알려진 해조류는 인체 내의 소화율을 고려한다고 하더라도 무기질의 높은 이용률을 보일 것으로 판단되어 무기질의 급원으로 그 이용이 기대된다. 더욱이 해조류는 한국인에게 부족한 영양소로 주목 받는 Ca을 가장 많이 함유하고 있으며 동시에 그 추정 이용률이 90% 이상으로 높아 Ca의 공급원으로써 해조류의 이용을 기대하며, 추후 추정 이용률을 토대로 소화율을 고려한 무기질의 생체이용률에 관한 연구가 활발히 진행되어야 한다고 사료된다.

Keywords

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