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.
(1) Most of the brands of bottled drinking deep sea water were produced by a reverse osmosis system.
(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
41.1±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.
(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.
(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
33.8±6.28ppm (n=7), SO
494.3±116.39ppm (n=14), SiO
212.9±16.39ppm (n=14).
Inorganic anions in deep sea water;Cl 8396.7ppm, NO
214.2ppm, S0
42277.7ppm, SiO
26.4ppm.
(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%.
(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).
Volatile halogenated hydrocarbons in source water;Total THM0.8ppb, CF 0.7ppb. MCF, TCE and PCE were below the limit of detection.
(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.
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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