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.

Download the PDF

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…

How artificial intelligence (AI) is helping winegrowers to deal with adversity from climate change

Artificial intelligence (AI) for winegrowers refers to robotics, smart sensor technology, and machine learning applied to solve climate change problems. Our research group has developed novel technology based on AI in the vineyard to monitor vineyard growth using computer vision analysis (VitiCanopy App) and grape maturity based on berry cell death to predict flavor and aroma profiles of berries and final wines.

Read More

Impact of crop load management on terpene content in gewürztraminer grapes

Context and purpose of the study ‐ Crop load management by cluster thinning can improve ripening and the concentration of key metabolites for grape and wine quality. However, little work has been done on testing the impact of crop load management on terpene content of white grapes. The goal of the study was to assess if by reducing crop load via cluster thinning growers can increase terpene concentration of grapes, as well as to test if the timing of thinning application affects terpene concentration.

Read More

The role of malolactic bacteria metabolism on the organoleptic qualities of wines

Lactic acid bacteria (LAB) are essential microorganisms in winemaking due to their role in malolactic fermentation (MLF) [1]. This process not only ensures the biological stabilization of wine through the decarboxylation of malic acid into lactic acid but also contributes to modifications in the chemical composition of the wine [2][3].

Read More

Towards an ecological architecture inspired by underground cellars: An example of the thermal inertia of Moldovan underground cellars and new geothermal and Canadian well approaches

The search for underground shelters is one of the oldest forms of human habitation, providing refuge in extreme environments such as deserts and polar regions.

Read More

Beneficial effects of moderate consumption of Teran red wine on blood lipid profile: a preliminary study on healthy volunteers

Moderate wine consumption may impact several human health aspects, among others as a result of phenolic compounds present in wine and their bioactive properties. The aim of this study was to determine whether six weeks of daily, moderate Teran red wine consumption affects the levels of total cholesterol, high-density lipoprotein cholesterol – HDL, low-density lipoprotein cholesterol – LDL, and triglycerides. Sixty-eight healthy adults (46 women and 22 men) aged 25-64 years voluntarily agreed to participate in the study.

Read More