Terroir 2008 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2008 9 Global approach and application of terroir studies: product typicity and valorisation 9 Characteristics of some Montefalco Sagrantino vineyards through polyphenolic components

Characteristics of some Montefalco Sagrantino vineyards through polyphenolic components

Abstract

Characteristics related to the climate and the soil of Montefalco in the centre of Italy have been defined in order to evaluate their influence on the red cv. Sagrantino, focusing on the phenolic evolution. Considering six vintages (2001-2006) six areas were compared: Torre, Poggio Allegro, Poggio Allodole, Valle Gualdo, Montepennino, Pietrauta. During ripening stage different sampling were carried out in the six different areas to check technological maturation (sugar, acidity and pH) and the phenolic content (Mattivi, 2002). Each area was characterized by the pedological and climatic point of view (pedological analysis, Winkler index, PPAR and rains). Among the vintages considered, 2003 presents a higher sugar content and a definitely lower content in anthocyanins, while polyphenols are higher. In the cold and rainy 2002, acidity and pH turned out higher and lower respectively. Torre is the area with the highest amount of total poliphenols, with a good contribution from the pips. To Poggio Allegro and Poggio Allodole correspond skins richer in anthocyanins. The weight average of berries is in the varietal standards for every site. Instead from Valle Gualdo turn out grapes with higher sugar contents. However there isn’t a decisive influence of the soil over the polyphenolic composition. The results show that in Montefalco area the climate influence and exposure to sunlight are determinant even though differently according to the area. While soil seems to influence less the concentrations of polyphenols and anthocyanins.

DOI:

Publication date: December 8, 2021

Issue: Terroir 2008

Type : Article

Authors

VALENTI L. (1), MATTIVI F. (2), GOZZINI A. (1), CARLETTI F. (1), CONOSCENTE M. (1)

(1) Università degli studi di Milano, Facoltà di Agraria, Dipartimento di Produzione Vegetale, via Celoria 2, 20133 Milano
(2) Istituto Agrario di San Michele all’Adige (IASMA), Centro Sperimentale, Dipartimento Qualità Agro-Alimentare, Via E. Mach, 1 – 38010 San Michele all’Adige

Contact the author

Keywords

terroir, concentration en polyphénols, influences climatiques, caractérisation pédologique 

Tags

IVES Conference Series | Terroir 2008

Citation

Related articles…

Investigating biotic and abiotic stress responses in grafted grapevine cultivars: A comparative study of Cabernet-Sauvignon and Cabernet Volos on M4 rootstock

When grapevine plants are transplanted into already established vineyards, they face multiple challenges, including adverse climate, heavy metal accumulation from agronomic practices [1], and pressure from highly adapted pathogens [2].

Biodiversity and biocontrol ability of Trichoderma natural populations in soil vineyards from Castilla y León region (Spain)

Trichoderma is a microorganism present in many agricultural soils and some of its species could be used as natural biological control agents. In this work, the presence of natural populations of Trichoderma was estimated in soil vineyard and its biocontrol capacity against Phaeoacremonium minimum, one of the main agent causals of grapevine trunk diseases instead of using pesticides. Moreover, physicochemical variables in soil such as pH, organic matter and nutrients were evaluated to determine a possible correlation to natural populations of Trichoderma.

Empreinte carbone et environnementale du vin en France : chiffres d’impact et bonnes pratiques à mettre en œuvre

Increasing concentrations of greenhouse gases (GHGs) in the atmosphere due to human activities are leading to a rise in the average temperature of the atmosphere. among the scenarios established by the un’s intergovernmental panel on climate change (IPCC), only two enable us to achieve the minimum objective of the paris agreements signed at cop 21 in 2015: staying below +2°c after 2050. both scenarios forecast a rapid reduction in GHG emissions as early as 2025, thanks to strong international cooperation, the priority given to sustainable development and responsible consumer choices.

Mannoproteins extraction from wine lees using natural deep eutectic solvents

Wine lees can be a good source of yeast mannoproteins for both food and wine applications [1,2]. However, mannoprotein extraction from wine lees has not yet been scaled up to an industrial scale, mainly because of the limited cost-effectiveness ratio of the methods employed at the laboratory scale [2].

Tracing glycosidically-bound smoke taint markers from grape to wine

The increasing frequency of wildfires on the West Coast of the USA is seen as a significant risk for the grape and wine industry. Research has shown that perceived smoke impact in wines correlates with increases in volatile phenols (VPs) in grapes exposed to fresh smoke.