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Results for “phenolics”
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A story of taste, colour and phenolics
Phenolic compounds are abundant in the plant kingdom. They are derived from phenol, which is the basic structure of all phenolic constituents and when containing one or more phenolic rings, they are generally referred to as polyphenols. These phenolic compounds play an essential role in the…
By Remi Schneider, Michel Moutounet and Elda Binneman · 7 min read
Seeds and red wine phenolics (Part 2): Influence of seed number on phenolic levels in red wines
This study set out to explore how different seed levels influence the phenolic composition of Merlot and Shiraz wines.
By Wessel du Toit, Asiphe Makalisa & José Luis Aleixandre-Tudo · 7 min read
Seeds and red wine phenolics (Part 1): Influence of seed number on phenolic levels in different grape varieties
In this study, three extraction methods were evaluated to assess phenolic compounds in red grapes with differing seed levels. These methods included the Glories method, the Iland method, and the recently developed hand-crushed method.
By Wessel du Toit, Asiphe Makalisa & José Luis Aleixandre-Tudo · 6 min read
Sparkling wine (Part 4): The truth about chilled MCC grapes
PHOTO: Anthony Delanoix (Unsplash).
By Mpho Mafata, Astrid Buica, Wessel du Toit and Francois van Jaarsveld · 6 min read
Impact of grapevine leafroll disease on grape and wine composition
Grapevine leafroll disease (GLD) is the most common grapevine disease, which is present in grape-growing regions globally.
By Erna Blancquaert & Wessel du Toit · 8 min read
New Winetech projects for 2017 (Part 1)
1. Modelling colour stability and ageing potential in SA red wines
By Winetech Editorial Team · 4 min read
Understanding and measuring tannins in red wines
The importance of phenolic compounds on wine quality require methods that accurately measure the tannin content.
By Jose Luis Aleixandre-Tudo, Mihaela Minhea and Wessel du Toit · 9 min read
Shiraz wines made from vines with different training systems
PHOTO: Wosa Library.
By Wessel du Toit, Petri de Beer and Albert Strever · 4 min read
Sauvignon blanc – role of phenotypic plasticity in cultivar typicity
PHOTO: Shutterstock.
By Doronae · 8 min read
Sparkling wine (Part 3): Phenolic composition of traditional style sparkling wine
PHOTO: Anthony Delanoix (Unsplash).
By Mpho Mafata, Astrid Buica, Wessel du Toit and Francois van Jaarsveld · 3 min read
