Terroir 2004 banner
IVES 9 IVES Conference Series 9 “Terroir” and grape and wine quality of native grape variety Istrian Malvasia

“Terroir” and grape and wine quality of native grape variety Istrian Malvasia

Abstract

Viticulture and wine production have a historical tradition in Istria. First written document of vine cultivation in this area date since antiquity. The most wide spread vine variety in Istria is Istrian Malvasia (white variety), and it capture about 60% of total vineyard surface in Istria today. The Istrian Malvasia is a native grape variety in Istria, and it is one of the best varieties in a huge family of Malvasian varieties from Mediterranean basin. The Istrian Malvasia gives quality grapes for high quality wine production. Except the variety, on high quality of wine, a location of vineyard – «terroir» also has a very strong impact.
The objective of this research was to establish how different locations of vineyards influenced on grape and wine quality of Istrian Malvasia. Four specific locations have been chosen for this research. Those are: Pula – southern part of Istrian peninsula, with shallow red soils and low amount of rain in vegetation, Visnjan – western part of peninsula, with characteristics deep red soils and good physical and chemical properties, Motovun – central part of peninsula, with gray («flysch») soils, rich with clay, and bad physical and chemical properties and cold winter period and Buje – northwestern part of peninsula, with brown soils, good physical and chemical properties and good rain distribution through year. On all locations a growing form was Guyot – single or double branched.
Grapes and wine were analyzed from each location for harvest 2002. The content of acetate and ethyl esters, fatty acids and free monoterpenes was analyzed from wine extracts obtained by the solid phase extraction (SPE) method using C18 as a sorbent. SPE has already been applied for the analysis of aroma compounds from wine and grapes (Wada et al., 1997., Carballeira et al., 2001., López et al., 2002.). The content of higher alcohols was analyzed from wine distillates. All aromatic compounds were analyzed by gas chromatography. Wine from Buje location contains higher level of volatile esters, particularly iso-amyl acetate (average 2,04 mg/L), significantly higher then on the other locations. The wine from Buje location also contains significantly higher amount of free monoterpenes, especially linalool (average 27 µg/L) and geraniool (average 49 µg/L). The wine from Motovun location contains higher amount of higher alcohols, especially 2-phenyl ethanol (average 26,42 mg/L), significantly higher then on the other locations.
Summarized, all results show how not only the variety but also location of vineyard – «terroir» has a strong impact on the quality of grape and wine.

DOI:

Publication date: January 12, 2022

Issue: Terroir 2004

Type: Article

Authors

D. Persuric, B. Sladonja, S. Radeka, D. Gluhic, I. Lukic

Institute for Agriculture and Tourism, Karla Huguesa 8, 52 440 Porec, Croatia

Contact the author

Tags

IVES Conference Series | Terroir 2004

Citation

Related articles…

Specificities of red wines without sulfites: which role for acetaldehyde and diacetyl? A compositional and sensory approach.

Sulfur dioxide is the most commonly used additive in oenology to protect wine from oxidation and microorganisms. Once added to wine SO2 is able to react with carbonyl compounds to form carbonyl bisulfites what affects their reactivity.

Vitamins in grape must: let’s lift a corner of the veil

Although vitamins stand as major actors to yeasts prime metabolic pathways, their significance in oenology and winemaking remains rather obscure nowadays, having been mostly unexplored for several decades.

Differentiating and grouping of oltrepo’ pavese environments according to grape maturation

The maturation patterns process has been very studied. In particular the modelization of the sugars and titratable acidity during the ripening period was an important approach, in particular for the prediction of harvest date (Barillere et al., 1988; Jourion et al.,1987; Maujean et al., 1983; Scienza, 1989). In Oltrepò Pavese, the widest viticultural district of Lombardy – Northern Italy – (about 15000 hectares), grape maturation trends shows high variability, due to the large variation in environmental characteristics of vineyards (altitude, exposure, soil type, mesoclimate) and to “cultivar x environment” interaction.

Zonazione e vitigni autoctoni nel sud della Basilicata: metodologie integrate per la caratterizzazione di ambienti di elezione di biotipi storici finalizzati a vini di territorio nella DOC “Terre dell’Alta Val d’Agri”

I territori della DOC “Terre dell’Alta Val d’Agri”, a Sud della regione Basilicata, si caratterizzano per una elevata biodiversità autoctona autoselezionatesi su ambienti ecologicamente ben definiti,

Indicators of Sustainable Vineyard Soil Management: Metrics for Assessing Environmental Impacts

The vital role of soils in supporting life on our planet cannot be overstated. Soils provide numerous ecosystem services and functions, including biomass production, carbon sequestration, physical support, biological habitat, and genetic reserve, among others. Understanding the characteristics and sensitivity of soils in a specific terroir, along with effective soil management practices, is crucial for the sustainable management of natural resources.