GiESCO 2019 banner
IVES 9 IVES Conference Series 9 GiESCO 9 GiESCO 2019 9 Characterization of different clone candidates of xinomavro according to their phenolic composition

Characterization of different clone candidates of xinomavro according to their phenolic composition

Abstract

Context and purpose of the study ‐ The aim of this study is the examination of wines of 9 different clones of a Greek grape variety Xinomavro, (ΧE1, X19, X22, X28, ΧE2 X30, X31, X35, X36, X37), with regards to their phenolic and anthocyanin content and chemical composition.

Material and methods ‐ Grapes were collected in vintage 2016, from an established Xinomavro vineyard, planted with the nine clones each one represented by fifty plants. The vineyard was established in 2011, with planted material selected according to the corresponding E.U. legislation for vine clone selection. Grapes were collected at harvest; general chemical analyses of each clone were recorded and the grapes were vinified under the same winemaking protocol and conditions. Monomeric anthocyanins, tannin mean degree of polymerization (mDP), galloylation percentage (%G), percentage of prodelphinidins (% P) and total tannin content, were determined in the produced wines by High Performance Liquid Chromatographer (HPLC) and spectrophotometer.

Results ‐ In most analyses performed an influence of clone selection was observed. Clones XE1, X19, X37, X35 and X31 differentiate from the clones evaluated in parameters crucial for wine quality such as maturity, acidity, anthocyanin, phenolic content and composition. It is therefore a step towards identifying clone characteristics dependent to the viticulture and winemaking needs. 

Download the PDF

DOI:

Publication date: June 19, 2020

Issue: GIESCO 2019

Type: Article

Authors

Evelina IGGOUMENAKI (1, 2), Sofoklis PETROPOULOS (1), Doris RAUHUT (2), Konstantinos BAKASIETAS (3), Yiorgos KOTSERIDIS (1), Stamatina KALLITHRAKA (1)

(1) Laboratory of Enology, Department of Food Science and Technology, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece.
(2) Hochshule Geisenheim University, Department of Microbiology and Biochemistry, Von-Lade-Str. 1, 65366, Geisenheim.
(3  Hellenifera, VNB Bakasietas Vine Nursery, Leontio, Nemea, 20500, Corinth.

Contact the author

Keywords

mean polymerization degree, Xinomavro, proanthocyanidins, anthocyanins

Tags

GiESCO 2019 | IVES Conference Series

Citation

Related articles…

VviSOC1a and VviAG1 act antagonistically in the regulation of flower formation

The SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 (SOC1) is a key floral activator that coordinates external and internal stimuli to ensure timely flowering. During early stages of flower formation, SOC1 represses floral organ identity genes such as AGAMOUS (AG) to prevent premature organ differentiation. In addition to floral organ specification, AG has been shown to regulate fleshy fruit expansion and ripening and, as such, is an important contributor to fruit quality traits. Currently, little is known about the function and gene regulatory network of the grapevine homologs VviSOC1a and VviAG1. As such, the aim of this study was to functionally characterise both genes by overexpressing them in tomato and performing phenotypic and gene expression studies.

Read More

Conventions and methods towards landscape quality: an application in the Douro (Portugal)

[lwp_divi_breadcrumbs home_text="IVES" use_before_icon="on" before_icon="||divi||400" module_id="publication-ariane" _builder_version="4.19.4" _module_preset="default" module_text_align="center" text_orientation="center" custom_margin="65px||18px||false|false"...
Read More

Mapping grapevine metabolites in response to pathogen challenge: a Mass Spectrometry Imaging approach

Every year, viticulture is facing several outbreaks caused by established diseases, such as downy mildew and grey mould, which possess different life cycles and modes of infection. To cope with these different aggressors, grapevine must recognize them and arm itself with an arsenal of defense strategies.
The regulation of secondary metabolites is one of the first reactions of plants upon pathogen challenge. Their rapid biosynthesis can highly contribute to strengthen the defense mechanisms allowing the plant to adapt, defend and survive.

Read More

Tannin potential and molecular toasting in cooperage: a tool to modulate fruity expression of red wine

AIM: Oak wood play traditionally a huge role in making fine red wines. During wine maturation, barrel yields some of its constituents to the wine and leads to the improvement of its quality, contributing to richness and complexity [1].

Read More

A multivariate clustering approach for a gis based territorial characterization of the montepulciano d’abruzzo DOCG “Colline Teramane”

The aim of the project was to characterize the Premium Denomination of Guaranteed Origin (DOCG) “Colline Teramane” wine-growing region and to delineate and define homogeneous zones (terroir units) within it, by applying a multivariate clustering approach combined with geomatics.

Read More