Berry shriveling significantly alters Shiraz (Vitis vinifera L.) grape and wine composition

Research output: Other contribution to conferencePresentation onlypeer-review

Abstract

Berry shriveling is an often reported occurrence in the Shiraz (Vitis vinifera L.) cultivar. This study investigated the effect of berry shriveling occurring in a high yielding (18.6 ± 1.6 kg/vine) Shiraz vineyard in relation to a temporal investigation of grape and wine composition using three harvest dates. Berry shriveling resulted in delayed total soluble solids and amino acid accumulation into the berry, however differences between treatments diminished or became smaller by the third harvest date. Similarly, ethyl esters of fatty acids and higher alcohol acetates were lower in wines from shriveled berries from the first two harvests; anthocyanins were reduced in wines from shriveled berries at all harvest dates, whereas terpenes were unaltered. Wines made from shriveled berries had higher γ-nonalactone and β-damascenone concentrations. This study provides novel information on the chemical alterations of grapes and wines made from grapes affected by shriveling.

Original languageEnglish
DOIs
Publication statusPublished - 2015
EventCRUSH -
Duration: 19 Nov 201520 Nov 2015

Conference

ConferenceCRUSH
Period19/11/1520/11/15

Fingerprint

Dive into the research topics of 'Berry shriveling significantly alters Shiraz (Vitis vinifera L.) grape and wine composition'. Together they form a unique fingerprint.

Cite this