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Influence on wine biogenic amine composition of modifications to soil N availability and grapevine N by cover crops
Author(s) -
PérezÁlvarez Eva P,
GardeCerdán Teresa,
Cabrita Maria João,
GarcíaEscudero Enrique,
Peregrina Fernando
Publication year - 2017
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.8349
Subject(s) - vineyard , agronomy , cover crop , petiole (insect anatomy) , wine , chemistry , nitrogen , tillage , composition (language) , horticulture , biology , botany , food science , philosophy , organic chemistry , hymenoptera , linguistics
Abstract BACKGROUND Vineyard soil management can modify the nitrogen soil availability and, therefore, grape amino acid content. These compounds are precursors of biogenic amines, which have negative effects on wine quality and human health. The objective was to study whether the effect of conventional tillage and two cover crops (barley and clover) on grapevine nitrogen status could be related to wine biogenic amines. Over 4 years, soil NO 3 − ‐N, nitrogen content in leaf and wine biogenic amine concentration were determined. RESULTS Barley reduced soil NO 3 − ‐N availability and clover increased it. In 2011, at bloom, nitrogen content decreased with barley treatment in both blade and petiole. In 2012, nitrogen content in both leaf tissues at bloom was greater with clover than with tillage and barley treatments. Also, total biogenic amines decreased in barley with respect to tillage and clover treatments. There were correlations between some individual and total biogenic amine concentrations with respect to nitrogen content in leaf tissues. CONCLUSION Wine biogenic amine concentration can be affected by the grapevine nitrogen status, provoked by changes in the soil NO 3 − ‐N availability with both cover crop treatments. © 2017 Society of Chemical Industry