2024-03-29T10:22:41Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2093092020-12-13T00:07:22Zcom_10261_10735com_10261_2col_10261_10736
2020-04-28T06:42:21Z
urn:hdl:10261/209309
Amino acids content in Tempranillo must from three soil types over four vintages
Pérez-Álvarez, Eva Pilar
Martínez-Vidaurre, J. M.
García-Escudero, E.
Garde-Cerdán, Teresa
Ministerio de Economía y Competitividad (España)
Gobierno de La Rioja
European Commission
García-Escudero, E. [0000-0002-7617-3034]
Garde-Cerdán, Teresa [0000-0002-2054-9071]
Soil N-NO3- availability
N-NH4 availability
Grape
Terroir
Nitrogen
Vitis vinifera
Amino acids are the main grape nitrogen compounds and the principal source of N for yeasts, being precursors of several volatile compounds. Therefore, N compound concentrations in musts can affect sensorial characteristics of wines. The aim of this study was to analyse the influence of N-NO3- and N-NH4+ contents from different soils on profile and content of amino acids in 'Tempranillo' grapes. In order to determine this soil influence on must quality, three plots were selected in AOC Rioja, classified as Fluventic Haploxerepts, Typic Calcixerepts, and Petrocalcic Palexerolls. The results showed that amino acids and yeast assimilable nitrogen (YAN) content allowed us to differentiate samples from the three soils, and in each soil type, samples of each season. In general, must contents of total amino acids and some of them, as alanine, threonine, and tyrosine, were more influenced by soil type; YAN, proline, histidine, serine, and glycine concentrations mainly depended on the interaction soil-vintage. In conclusion, free amino acids concentration could be a tool to differentiate musts coming from different soils.
2020-04-28T06:42:21Z
2020-04-28T06:42:21Z
2019-12-13
2020-04-28T06:42:21Z
artículo
Vitis - Journal of Grapevine Research 58(Special Issues): 3-12 (2019)
http://hdl.handle.net/10261/209309
10.5073/vitis.2019.58.special-issue.3-12
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100000780
Publisher's version
http://dx.doi.org/10.5073/vitis.2019.58.special-issue.3-12
Sí
http://creativecommons.org/licenses/by-nc-nd/4.0/
openAccess
Institute of Grapevine Breeding Geilweilerhof