RT Journal Article
SR Electronic
T1 The Effect of Malate or Lactate Content on the pH-TA Relationship of Potassium Bitartrate Saturated Alcohol-Water Solutions
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 81
OP 84
DO 10.5344/ajev.1989.40.2.81
VO 40
IS 2
A1 C. W. Nagel
A1 I. W. Herrick
YR 1989
UL http://www.ajevonline.org/content/40/2/81.abstract
AB To show the effect of organic acid composition on pH and titratable acidity (TA), an algorithm was derived using the dissociation constants of the acids determined in 0%, 10%, and 20% (v/v) ethanol solutions and the solubility product of potassium bitartrate. Using published solubility products for potassium bitartrate solutions and assuming a 0.15% concentration for succinic acid, the effect of variation of the concentration of malic or lactic acid on TA and tartrate and K+ content in ethanol/ water solutions at different pH values could be calculated with the formulas and computer. Tables were constructed showing the predicted malic or lactic acid content in ethanol/water solutions at a particular TA and pH.