<?xml version='1.0' encoding='UTF-8'?><xml><records><record><source-app name="HighWire" version="7.x">Drupal-HighWire</source-app><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nagel, C. W.</style></author><author><style face="normal" font="default" size="100%">Johnson, Tamis L.</style></author><author><style face="normal" font="default" size="100%">Carter, G. H.</style></author></authors><secondary-authors></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Investigation of Methods for Adjusting the Acidity of Wines</style></title><secondary-title><style face="normal" font="default" size="100%">American Journal of Enology and Viticulture</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1975</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1975-01-01 00:00:00</style></date></pub-dates></dates><pages><style  face="normal" font="default" size="100%">12-17</style></pages><doi><style  face="normal" font="default" size="100%">10.5344/ajev.1975.26.1.12</style></doi><volume><style face="normal" font="default" size="100%">26</style></volume><issue><style face="normal" font="default" size="100%">1</style></issue><abstract><style  face="normal" font="default" size="100%">Different methods of acid and pH adjustment of musts and wines were compared. CaCO3 precipitation, anion exchange, and malo-lactic fermentation for acid reduction all have limitations. CaC03 causes the least flavor distortion, while anion-exchange treatment causes the greatest. The double salt-precipitation procedure with CaCO3 is applicable only to low-pH high-acid musts or wines with high tartrate contents. Neutralization of low-pH high-acid wines with CaCO3 appears to be equally effective. Hydrogen-ion exchange or tartaric-acid addition are equally effective in reducing the pH of high-pH low-acid wines where the potassium content is high.</style></abstract></record></records></xml>