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Results for “ELISA”
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Testing for allergenic residues in wine – a storm in a teacup?
A study was commissioned by Winetech to determine whether it is necessary for wineries to have every batch of wine tested for potential residues if allergenic p
By Karien O'Kennedy · 7 min read
Virus diversity associated with grapevine leafroll disease
PHOTO: Hanno van Schalkwyk.
By Johan Burger · 12 min read
Vititec on a roll
Leaf roll virus inspections, monitoring of various cultivar vines and Elisa testing. This is what’s happening at Vititec right now with leaf roll virus inspecti
By Doronae · 2 min read
Small bugs, big problems
There are several microscopic maladies that can affect grapevines. Particularly fascinating and challenging is the dreaded leafroll virus, since conventional an
By Lee-anne · 5 min read
New Winetech projects for 2017 (Part 5)
1. Effect of HWT (50°C for 45 minutes) on fungal pathogens in vine nurseries
By Winetech Editorial Team · 5 min read
Veritas Young Writer reports back from 'World's Best Somm' competition in Antwerp, Belgium
The winner of last year's Veritas Young Wine Writer of the Year competition, Llewellyn Lambert, has returned from attending the 'Best Sommelier of the World' co
By Anton Pretorius · 6 min read
Optimisation of grapevine leafroll detection by sentinel canes
In this project we evaluated the use of a bud of a red cultivar, grafted on individual white cultivar vine stems to serve as visual indicators of leafroll infection in the white cultivar.
By Gerhard Pietersen · 10 min read
Leafroll disease or deficiency symptom?
Grapevine leafroll disease is the most important viral disease of grapevines in South Africa. It is thought to have a significant impact on the sustainability of the wine industry, impacting both the qualitative and productive lifespan of our vineyards.
By Etienne Terblanche · 8 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
The front line of leafroll management
Leafroll saps away the strength and quality of vineyards in just a few years. Yet there is still a concerning lack of urgency to address it.
By SA Wine Industry · 6 min read
Plant-based proteins in oenology
This article aimed to describe the characteristics and main oenological effects of pea and potato proteins and to evaluate their performance.
By Gianni Triulzi, Alessandra Basana & Pietro Bighiani · 9 min read
