Effect of Water Hardness on the Taste of Alkaline Electrolyzed Water

Abstract

30 mg/L, 170 mg/L, and 290 mg/L were found to taste less pleasant than each bottled mineral water before being 30 mg/L, 170 mg/L, and 290 mg/L were found to taste less pleasant than each bottled mineral water before being 30 mg/L, 170 mg/L, and 290 mg/L were found to taste less pleasant than each bottled mineral water before being 30 mg/L, 170 mg/L, and 290 mg/L were found to taste less pleasant than each bottled mineral water before being electrolyzed. The results of sensory tests 1 and 2 show that good-tasting AEW could be produced by an alkaline water electrolyzed. The results of sensory tests 1 and 2 show that good-tasting AEW could be produced by an alkaline water electrolyzed. The results of sensory tests 1 and 2 show that good-tasting AEW could be produced by an alkaline water electrolyzed. The results of sensory tests 1 and 2 show that good-tasting AEW could be produced by an alkaline water electrolyzed. The results of sensory tests 1 and 2 show that good-tasting AEW could be produced by an alkaline water electrolyzed from most tap water of Japan because its hardness varies from approximately 50 mg/L to 80 mg/L. electrolyzed from most tap water of Japan because its hardness varies from approximately 50 mg/L to 80 mg/L. electrolyzed from most tap water of Japan because its hardness varies from approximately 50 mg/L to 80 mg/L. electrolyzed from most tap water of Japan because its hardness varies from approximately 50 mg/L to 80 mg/L. electrolyzed from most tap water of Japan because its hardness varies from approximately 50 mg/L to 80 mg/L. K K K K Keywor eywor eywor eywor eywords: alkaline electr ds: alkaline electr ds: alkaline electr ds: alkaline electr ds: alkaline electrolyz olyz olyz olyz olyzed water ed water ed water ed water ed water, miner , miner , miner , miner , mineral water al water al water al water al water, water har , water har , water har , water har , water hardness dness dness dness dness, taste , taste , taste , taste , taste, sensor , sensor , sensor , sensor , sensory ev y ev y ev y ev y evaluation aluation aluation aluation aluation

Effect of pH on the Taste of Alkaline Electrolyzed Water

“…However, water with a calcium concentration of 10 mg/L was not preferred over the original water when the pH was increased to 9.5 by electrolysis. We reported in a previous study that the taste of waters with calcium concentrations of 20 and 23 mg/L was not changed by pH elevation to 8.1 and 8.4, respectively, by electrolysis, but waters with calcium concentrations of 9, 75, and 74 mg/L were less preferred than the original waters when the pH values of these waters were increased to 8.3, 7.4, and 7.4, respectively, via electrolysis (Koseki and others 2005). Using waters A, E, and I and activated carbon‐filtered water, we also examined changes in the concentrations of dissolved ions that occurred as a result of the electrolysis‐induced change in pH, because ion concentration is known to influence the taste of water (Iiyama and others 1995).…”

“…The alkaline water electrolyzer used in the present study (Type TK‐7705‐S; Matsushita Electric Works Ltd., Osaka, Japan) used higher voltage than the device used in our previous experiments (Koseki and others 2003, 2005). …”

“…AEW: AEW was produced in the same way as in our previous study (Koseki and others 2005). The pH of the AEW was 9.5.…”

“…Sensory tests were carried out under the same conditions as described in our previous studies (Koseki and others 2003, 2005). Panelists had not been trained before the experiment and had been given no direction (either prohibitive or permissive) regarding breakfast, lunch, or cleaning their teeth before the sensory test.…”

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“…La intensidad del sabor del sodio es más baja con bicarbonato y con sulfato, y tiene mayor intensidad con el anión cloruro 103 .…”