Properties of bottled drinking deep sea water
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概要
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The general properties relating to the composition and hygienic properties of fourteen brands of bottled drinking deep sea water and one of deep sea water (source water) were investigated.<BR>(1) Most of the brands of bottled drinking deep sea water were produced by a reverse osmosis system.<BR>(2) Composition of bottled drinking deep sea water;Residues on evaporation 663±592.2ppm, hardness 344±360.3ppm, free carbon dioxide 3.7±1.89ppm, pH4.8 alkalinity 8.9±9.28ppm, pH 6.81±0.483, consumption of KMnO<SUB>4</SUB>1.1±0.84ppm. Composition of source water;Residues on evaporation 42723ppm, free carbon dioxide 7.4ppm, pH4.8 alkalinity 61.1ppm, pH 7.4, consumption of KMnO4 199.6ppm.<BR>(3) Mineral contents of bottled drinking deep sea water;Na 43.7±29.21 ppm, Mg 83.3±87.42ppm, K 10.5±17.00ppm, Ca 14.7±17.88ppm, B 13.7±13.92ppm, Li6.1±7.77ppb, Al 1.3±1.30ppb, Si 1.67±2.666ppm, P 41.7±30.57ppb, V 12.5±7.36ppb, Cr 0.3±0.21ppb, Mn 1.0±2.12ppb, Fe 12.9±3.64ppb, Ni 0.4±0.35ppb, Cu 0.95±0.76ppb, Zn 1502.6±4311.9ppm, Ge 1.2±0.72ppb, Se 2.7±3.81ppb, Rb 3.6±4.82ppb, Mo 0.7±0.71ppb.<BR>(4) Inorganic anions in bottled drinking deep sea water;F 5.4±8.56ppm (n=9), Cl 252.2±207.55ppm (n=14), Br 3.7±1.19ppm (n=4), NO<SUB>3</SUB>3.8±6.28ppm (n=7), SO<SUB>4</SUB>94.3±116.39ppm (n=14), SiO<SUB>2</SUB>12.9±16.39ppm (n=14).<BR>Inorganic anions in deep sea water;Cl 8396.7ppm, NO<SUB>2</SUB>14.2ppm, S0<SUB>4</SUB>2277.7ppm, SiO<SUP>2</SUP><SUB></SUB>6.4ppm.<BR>(5) K-Index and 0-Index by Hashimoto in bottled drinking deep sea water;KIndex-23.3±27.33, 0-Index 1.1±1.55. Although natural mineral water was classified as having a "good taste" by K-Index and 0-Index was 68-76%, that of bottled drinking deep sea water was 14%.<BR>(6) Volatile halogenated hydrocarbons in bottled drinking deep sea water; Total THM 2.7±4.93ppb (n=8), CF 0.7±0.47ppb (n=8), BDC 0.6±0.49ppb (n=3), DBC 1.6±1.47ppb (n=3), BF 5.4±4.99ppb (n=3).<BR>Volatile halogenated hydrocarbons in source water;Total THM0.8ppb, CF 0.7ppb. MCF, TCE and PCE were below the limit of detection.<BR>(7) Microorganism;Five brands of bottled drinking deep sea water and one of the source water showed detection of microorganisms in nutrient agar, but not in TCBS agar or GAM agar.<BR>It was found that bottled drinking deep sea water more contained Na, Mg, K, Cr, Zn, Cl ion and F ion as compared with natural mineral water.
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