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Effect of Estimated Availability of NDF Binding Major Minerals in Soybean Sprouts Depending on Cultivation Periods and Sampling Parts

콩나물 재배기간과 부위에 따른 NDF에 결합된 다량 무기질의 추정이용율

  • 이지영 (동아대학교 식품과학부) ;
  • 엄지혜 (동아대학교 식품과학부) ;
  • 은정화 (동아대학교 식품과학부) ;
  • 배승철 (부경대학교 양식학과/사료영양연구소) ;
  • 김대진 (동아대학교 식품과학부)
  • Published : 2009.04.30

Abstract

This study was performed to evaluate contents and estimated availabilities of major minerals (Ca, P, K, Mg) in soybean sprouts. Two different sampling parts (cotyledon and hypocotyl), and three culture periods (1, 3, and 5 days) were evaluated. Results indicated that Mg (99.11%) from cotyledon for 5 days culture period was significantly higher than Ca (98.34%), P (97.67%), and K (98.70%). Percent average Mg estimated availability of 5 days cultured hypocotyl was also significantly higher than that of Ca (77.79%), P (91.91%), and K (96.80%). Therefore, the current results indicate that decreased Ca estimated availability in hypocotyl was time dependent and the cotyledon may be the better source for the estimated availability of major minerals than the hypocotyl of soybean sprouts because more than 90% of the major minerals was estimated availability.

본 연구는 콩나물을 재배기간과 부위별에 따라 나누고 cell wall에 결합된 다량 무기질의 함량을 측정하여 추정이 용률을 추론하고자 실시하였다. 재배기간 1, 3, 5일차의 콩나물을 채취하여 자엽과 배축으로 분리한 뒤 화학적 방법으로 식이섬유를 분석하고, 중성세제섬유(neutral detergent fiber, NDF)에 결합된 다량 무기질(Ca, P, K, Mg)을 건식분해법으로 분석하여 평가하였다. 자엽과 배축에서의 추정이용률은 Ca이 자엽에서 1일째 97.73%, 3일째 98.44%, 5일째 98.34%로 매우 높았고 P은 1일째 90.98%, 3일째 93.14%, 5일째 94.67%로 Ca보다는 다소 낮은 이용률이었지만 모두 90% 이상의 높은 이용률이었다. K과 Mg의 추정이용률 역시 각각 $97.73{\sim}98.70%$, $98.61{\sim}99.11%$로 매우 높았다. 또한 배축에서는 Ca이 1일째에는 89.50%였으나 5일째에서는 77.79%로 약간 감소하였으나 그 외 P, K, Mg은 3일째에서 5일째로 시간이 경과함에 따라 추정이용률이 증가하였다.

Keywords

References

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