Culinary science and hospitality research (한국조리학회지)

Culinary Society of Korean Academy (한국조리학회)
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Comparison of Mineral Contents and Sensory Characteristics of Commercial Bottled Water in Korea

국내 시판 생수의 무기질 함량과 관능특성

  • Kim, Jung Hoan (Department of Food Science and Services, Eulji University) ;
  • Choi, Jun Bong (Graduate School of Hotel & Tourism, The University of Suwon)
  • 김정환 (을지대학교 식품산업외식학과) ;
  • 최준봉 (수원대학교 호텔관광대학원)
  • Received : 2014.06.01
  • Accepted : 2014.08.10
  • Published : 2014.08.31
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Abstract

This study investigates mineral contents and sensory properties of commercial bottled water in Korea. The contents of calcium and magnesium in the samples were determined 3.399-85.470 and 2.619-27.390 mg/L, respectively. The mineral contents of bottled water samples met the code of regulations for drinking water, for the hardness was determined 19.2-326 mg/L and the pH was measured as 6.31-7.74. As the sensory characteristics of bottled water samples were evaluated by 5-point hedonic scale, the samples which were below 100 mg/L of hardness had high acceptability. The acceptability was positively correlated with freshness (r=0.706) and sweetness (r=0.253), having a negative correlation with metallic taste (r=-0.402) and astringency (r=-0.234) (p<0.05). On the other hand, calcium content had a negative correlation with acceptability and freshness (p<0.05). The pH of the bottled water represented a negative correlation with acceptability and freshness, so the good acceptability and freshness were shown in the low pH, positively correlated with the intensity of metallic taste (p<0.05).

국내 시판되는 병입 생수의 무기질 함량을 조사하고 관능특성과의 관련성을 평가하였다. 7종의 시판 생수는 칼슘 함량이 3.399-85.470 mg/L, 마그네슘 함량은 2.619-27.390 mg/L였다. 또한 무기질 함량이 먹는물의 수질기준 이내의 수준이었으며, 경도는 19.2-326 mg/L의 범위로 나타났으며 pH는 6.31-7.74로 측정되었다. 5점 척도로 관능특성을 평가한 결과, 100 mg/L 이하의 먹는 샘물 시료들의 전체적인 기호도가 높았다. 전체적인 기호도는 시원한 맛의 강도에 비례하였으며(r=0.706), 단맛(r=0.253)과도 (+)의 상관관계를 나타내었다(p<0.05). 반면 금속성 맛의 강도(r=-0.402) 및 떫은맛의 강도(r=-0.234)와는 (-)의 상관을 나타내었다(p<0.05). 주요 무기질 중 칼슘은 시원한 맛의 강도 및 전체적인 기호도와 (-)의 상관관계를 보이는 것으로 나타났다(p<0.05). 아울러 생수의 pH는 전체적인 기호도와 시원한 맛의 강도와 (-)의 상관관계를 나타내어, 산성을 띨수록 전체적인 기호도와 시원한 맛의 강도가 높게 평가되었으며, 금속성 맛의 강도는 (+)의 상관으로 pH가 높은 시료일수록 높게 나타났다(p<0.05).

Keywords

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