IVAS 2022 banner
IVES 9 IVES Conference Series 9 IVAS 9 IVAS 2022 9 Amphora Wines: To Pitch Or Not To Pitch

Amphora Wines: To Pitch Or Not To Pitch

Abstract

Amphora wines are known in Portugal as Vinhos de Talha. In this technology, alcoholic fermentation takes place in clay vessels that traditionally were pitched inside using pine pitch. Vinhos de Talha has a distinctive sensorial profile, due to the ancestral technique of vinification. However nowadays, some clay vessels are impermeabilized with other materials than pitch, such as bee wax and mainly epoxy resins.

The present research is a first study to evaluate if different clay vessels impermeabilization materials impact the volatile profile of wines. Fot that objective, white wines were produced in clay vessels with different coatings: new pitch, old picth, epoxy resin, bee wax and no coating. The volatile composition was analyzed by headspace solid phase microextraction hyphenated with gas chromatography / mass spectrometry (HS-SPME-GC/MS).

A linear discriminant analysis shows that wines can be discriminated according to different clay vessels impermeabilization materials, being the most similar the ones from clay vessels with no coating and the ones from clay vessels with old pitch.

DOI:

Publication date: June 27, 2022

Issue: IVAS 2022

Type: Poster

Authors

Cabrtia Maria João1, Pereira Ana1, Martins Nuno1, Garcia Raquel1 and Gomes da Silva Marco2

1MED – Mediterranean Institute for Agriculture, Environment and Development, Departamento de Fitotecnia, Escola de Ciências e Tecnologia, Universidade de Évora
2LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa

Contact the author

Keywords

Vinhos de Talha; Volatile profiling; HS-SPME; GC/MS

Tags

IVAS 2022 | IVES Conference Series

Citation

Related articles…

Accurate Quantification of Quality Compounds and Varietal Classification from Grape Extracts using the Absorbance-Transmittance Fluorescence Excitation Emission Matrix (A-TEEM) Method and Machine Learning

Rapid and accurate quantification of grape berry phenolics, anthocyanins and tannins, and identification of grape varieties are both important for effective quality control of harvesting and initial processing for wine making. Current reference technologies including High Performance Liquid Chromatography (HPLC) can be rate limiting and too complex and expensive for effective field operations
Read More

Mapping of canopy features in commercial vineyards using machine vision

Vineyard canopy features such canopy porosity and fruit exposure influenced microclimate, fungal disease incidence and grape composition. An objective, rapid and non-invasive method to assess and map the canopy status is needed to apply in precision viticulture. A new method for canopy status assessment and mapping based on non-invasive machine vision was applied in commercial vineyards in this work.

Read More

Grapevine nitrogen dynamics as a function of crop thinning

Context and purpose. Nitrogen (N) is crucial for plant development but is used inefficiently, with only 30–40% of the fertilizer assimilated by crops, leading to significant environmental losses.

Read More

Aroma typicity of Timorasso wines: influence of ageing on volatile organic compounds and sensory descriptors

‘Timorasso’ is an autochthonous white grape variety from southern Piedmont (Italy) used for producing wines in the Colli Tortonesi product designation of origin (PDO). Over the last decade, there has been a notable rise in its production, due to the increased interest of wine enthusiasts who prized its wine distinctive ageing notes [1].

Read More

“Terroir” and climate change in Franconia / Germany

Franconia which is a “cool climate” winegrowing region is well known for its fruity white wines. The most common grape cultivars are Silvaner and Mueller-Thurgau.

Read More