사과주스 중의 Ca, P, Mg, Na, K의 함량을 ICP를 이용하여 측정하였다. 무기질 함량은 Ca 19∼311ppm, K 231∼1, 441ppm, Mg 6∼46ppm, Na 19∼115ppm 그리고 P 19∼304ppm이었다. 그리고 Na/K함량비는 모델주스의 경우 Na/K 비율이 0.02로 일정한 값을 나타내고 있지만 시판 사과주스는 0.06∼0.37을 나타내고 있다. 무기질이 강화된 시판주스는 P와 Ca함량이 매우 높았으며 30% 시판주스는 Na/K 비율이 매우 높았다.

The mineral contents were analyzed for apple juices by Inductively Coupled Plasma. The Mg contents of tested commercial apple juices ranged 6.27∼32.91ppm, Ca 15.95∼311.76ppm, K 231.13∼1148.02ppm, Na 39.82∼115.68ppm, and P 19.27∼304.02ppm. The mineral contents of model apple juice were Mg 29.83∼46.56ppm, Ca 16.98∼30.98ppm, K 814.28∼1, 256.70ppm, Na 19.88∼26.85ppm, and P 25.88∼54.71ppm, respectively. Comparing mineral contents of model apple juices and commercial apple juice, Na, Ca and P contents of commercial apple juices were higher but Mg, K contents were lower than that of model apple juices. Among the mineral content of apple juices, K was the major element.

• 박상현 | Sang Hyun Park
• 정현아 | Hyeon A Jung
• 주나미 | Na Mi Joo