<?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%">Clare, Steven S.</style></author><author><style face="normal" font="default" size="100%">Skurray, Geoffrey</style></author><author><style face="normal" font="default" size="100%">Shalliker, R. Andrew</style></author></authors><secondary-authors></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of Pomace-Contacting Method on the Concentration of &lt;em&gt;cis&lt;/em&gt;- and &lt;em&gt;trans&lt;/em&gt;-Resveratrol and Resveratrol Glucoside Isomers in Wine</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%">2004</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2004-01-01 00:00:00</style></date></pub-dates></dates><pages><style  face="normal" font="default" size="100%">401-406</style></pages><doi><style  face="normal" font="default" size="100%">10.5344/ajev.2004.55.4.401</style></doi><volume><style face="normal" font="default" size="100%">55</style></volume><issue><style face="normal" font="default" size="100%">4</style></issue><abstract><style  face="normal" font="default" size="100%">The effect of various pomace-contacting (maceration) methods on the concentrations of cis- and trans-resveratrol and resveratrol glucoside isomers were investigated in Vitis vinifera L. cv. Cabernet Sauvignon grape musts during alcoholic fermentation. Compared to a classical red wine vinification (control), carbonic maceration resulted in no detectable quantities of all four forms of resveratrol throughout fermentation and pressing. Prefermentation cold-soaking significantly increased (p &lt; 0.01) both free isomers of resveratrol in free-run, press, and mix wine despite no significant differences with the control in trans-resveratrol glucoside concentration and slightly less extraction of cis-resveratrol glucoside. Free resveratrol was absent in the must heated prior to fermentation, while the level of resveratrol glucosides significantly increased (p &lt; 0.001) relative to the control. In the final wines ready for bottling or aging, thermovinification proved most beneficial with respect to total resveratrol concentration, being 266% higher than that achieved in the control, while cold-soaking proved less beneficial, improving total resveratrol by 27%.</style></abstract></record></records></xml>