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Results for “grape extracts”
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Seaweed-based biostimulants in Vitis vinifera
Little is known about the impact of seaweed extracts in grape production and their influence on grapevine physiology, and stress adaptation mechanisms.
By Liam Samuels, Evodia Setati & Erna Blancquaert · 10 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
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
Resolutions adopted by OIV
The 15th General Assembly of the International Organisation of Vine and Wine (OIV), which met on 2 June 2017 in Sofia (Bulgaria), adopted a total of 22 resoluti
By OIV · 8 min read
Something wicked (smelling) this way comes ...
PHOTO: Shutterstock.
By Nongcebo Langa and Marianne McKay · 9 min read
Resolutions adopted by OIV
The 16th General Assembly of the International Organisation of Vine and Wine (OIV), which met on 23 November 2018 in Punta del Este (Uruguay), adopted a total o
By OIV · 7 min read
Pectin-lyase - the key wine enzyme?
PHOTO: Shutterstock.
By Yu Gao, Melané Vivier and John Moore · 5 min read
Management of vine water stress through foliar treatment with microbial derivatives*
An innovative microbial derivative has been developed to protect vines from the negative effects of water stress.
By Lucia Giordano, Tommaso Frioni & Fabrizio Battista · 11 min read
Winetech funds research towards improved Vitis planting material for the wine industry
We have established an entire protocol for the detection of GFkV by ELISA for immediate implementation, at least at a nuclear plant level, in the VIA’s certification scheme, and have recommended to the VIA and DALRDD that the most affordable kit be utilised using the protocol established through…
By Gerhard Pietersen, Katie Usher & Mmapula Lesailane · 14 min read
Vine and wine innovation watch: Electronic noses
Electronic noses, or E-noses, have emerged as game-changing tools in various fields, including biomedicine, environmental science, industrial materials production and the food industry.
By Karien O'Kennedy · 4 min read
Measuring pesticide impacts
A recent study found that nine pesticides frequently used in viticulture may exceed regulatory thresholds and these chemicals may persist in the atmosphere far longer than previously thought.
By SA Wine Industry · 6 min read
Rooted in research - what science says about regenerative viticulture (Part 1)
This article is based on a recently published scientific review article. In the review article, the question was: ‘What science exists to support the efficacy of practices used in regenerative viticulture systems or approaches?’.
By Lucinda Heyns · 11 min read
