Table 1
Property | Beverage Categories | ||||
---|---|---|---|---|---|
100% Juicea | Regular Sodaa | Diet Sodaa | Sports Drinksb | Energy Drinksa | |
pH | 3.46 ± 0.08d,1 | 2.65 ± 0.272 | 2.94 ± 0.173 | 2.84 ± 0.193,4 | 2.76 ± 0.312,4 |
Titratable Acidityc | |||||
0 minutes | 2.56 ± 0.10d,1 | 4.08 ± 0.402 | 4.15 ± 0.472 | 2.13 ± 0.371 | 6.50 ± 1.133 |
60 minutes | 2.48 ± 0.08d,1 | 1.07 ± 0.392 | 1.25 ± 0.802 | 2.09 ± 0.341 | 4.83 ± 0.953 |
The pH and titratable acidity of beverages were measured using an automatic titrator.
an = 4
bn = 3
cml 1M KOH required to bring 50 ml of beverage to neutral pH. “0 minutes” was measured immediately upon opening while “60 minutes” was measured following 60 minutes of vigorous stirring.
dMeans ± SD. Means within a row with different superscript numbers are significantly different. Statistical test was one-way analyses of variance with post-hoc Tukey’s studentized range (HSD) test; P < 0.05.