Results 1 to 10 of about 138,990 (116)

Unravelling copper effect on the production of varietal thiols during Colombard and Gros Manseng grape juices fermentation by Saccharomyces cerevisiae. [PDF]

Front Microbiol, 2023
Nowadays the rapidly increasing organic vineyard management with the utilization of copper as sole fungal control pesticide against downy mildew raises once again the question of copper impact on varietal thiols in wine.
Dournes G, Dufourcq T, Suc L, Roland A, Mouret JR.   +4 more
europepmc   +4 more sources

The Influence of Grape Clone and Yeast Strain on Varietal Thiol Concentrations and Sensory Properties of Graševina Wines. [PDF]

Foods, 2023
Varietal thiol concentration in wine is influenced by numerous factors, of which grape variety and winemaking practices are often highlighted as the most important. Therefore, the aim of this work was to study the effects of grape clone and yeast strain (
Tomašević M, Lukić K, Ćurko N, Jagatić Korenika AM, Preiner D, Tuščić V, Jeromel A, Kovačević Ganić K.   +7 more
europepmc   +4 more sources

Varietal thiols levels and sensory effects in South African Colombard wines

OENO One, 2023
The levels of varietal thiols and the role these compounds play in Colombard wine have not been investigated in detail. This study assessed the levels of the varietal thiols 4-methyl-4-sulfanylpentan-2-one (4MSP), 3-sulfanylhexyl acetate (3SHA) and 3 ...
Rianco Van Rooyen, J. Brand, Wessel J. Du Toit   +2 more
semanticscholar   +3 more sources

The contribution of varietal thiols in the diverse aroma of Italian monovarietal white wines.

Food Research International, 2022
Thanks to their low odor detection thresholds, free varietal thiols (VTs) play a key role in the primary aroma of wines, to which they confer an intense scent reminiscent of box tree, grapefruit, citrus fruits, passionfruit and cat urine odor.
S. Carlin, Maurizio Piergiovanni, E. Pittari, Maria Tiziana Lisanti, L. Moio, P. Piombino, M. Marangon, A. Curioni, L. Rolle, S. Río Segade, A. Versari, A. Ricci, G. Parpinello, Giovanni Luzzini, M. Ugliano, D. Perenzoni, U. Vrhovšek, F. Mattivi   +17 more
semanticscholar   +3 more sources

Varietal Aromas of Sauvignon Blanc: Impact of Oxidation and Antioxidants Used in Winemaking

Fermentation, 2022
Key varietal characteristics of Sauvignon Blanc, including the descriptors of ‘green’ and ‘tropical fruit’, are mostly attributed to methoxypyrazines and volatile thiols, while monoterpenes, higher alcohols, esters, fatty acids, and other volatile ...
Pei-Chin Tsai, L. D. Araujo, B. Tian
semanticscholar   +3 more sources

Measuring Thiols in Single Cultivar South African Red Wines Using 4,4-Dithiodipyridine (DTDP) Derivatization and Ultraperformance Convergence Chromatography-Tandem Mass Spectrometry

Foods, 2018
Wine varietal thiols are important contributors to wine aroma. The chemical nature of thiols makes them difficult to measure due to low concentrations, high sensitivity to oxidation, and low ionization.
M. Mafata, M. Stander, Baptiste Thomachot, A. Buica   +3 more
semanticscholar   +3 more sources

Thiol release improvement in Saccharomyces cerevisiae oenological strains by CRISPR/Cas9-based IRC7 molecular cisgenesis. [PDF]

J Biol Eng
Background Polyfunctional thiols are essential contributors to the aromatic profile of varietal white wines like Sauvignon Blanc. These compounds are released during fermentation by Saccharomyces cerevisiae cells from grape-derived precursors, with the ...
Granuzzo S, Bosaro M, Antoniali P, Lopreiato R.   +3 more
europepmc   +2 more sources

Thiol precursors in Catarratto Bianco Comune and Grillo grapes and effect of clarification conditions on the release of varietal thiols in wine

Australian Journal of Grape and Wine Research, 2018
Background and Aims Varietal thiols characterise the typical aroma of several white wines, such as Sauvignon Blanc. Their presence and sensory perception were suggested in two Sicilian grape cultivars, Catarratto Bianco Comune (CBC) and Grillo, though
D. Fracassetti, M. Stuknytė, C. Rosa, M. Gabrielli, I. D. Noni, A. Tirelli   +5 more
semanticscholar   +3 more sources

Investigation of intraregional variation, grape amino acids, and pre-fermentation freezing on varietal thiols and their precursors for Vitis vinifera Sauvignon blanc.

Food Chemistry, 2019
Sauvignon blanc grape samples (n = 21) from across a single Geographical Indication of South Australia were analysed for thiol precursors and amino acids, and fermented in an identical laboratory-scale fermentation trial to investigate the intraregional ...
Liang Chen, D. Capone, E. L. Nicholson, D. Jeffery   +3 more
semanticscholar   +3 more sources

Simultaneous extraction, derivatisation and analysis of varietal thiols and their non-volatile precursors from beer

LWT - Food Science and Technology, 2022
R. Jelley, Hayden R. Jones-Moore, Angela Guan, Chloe Z.-J. Ren, J. Chen, L. Tonidandel, R. Larcher, B. Fedrizzi   +7 more
semanticscholar   +3 more sources