Video clip from Enoforum Web Conference - Presentations by Ana Hranilovic and Antonio Castro Marin
Two research presentations, one from Australia and one from Italy, propose interesting and sustainable oenological solutions to combat the lack of acidity in wines and microbial threats.
Chitosan applications in vineyards and effects on gene expression
Rupesh Singh, Centro de Química de Vila Real, Portugal
Chitosan is an environmentally friendly active molecule with many applications for the agricultural sector. However, its mode of action is not yet well known.
This work analysed the total concentration of phenolic compounds, the antioxidant potential and the expression of genes "scavenging" of reactive oxygen species (ROS) in grapes (skins and seeds), leaves, scrapes and shoots, after the application of chitosan in two red varieties (Touriga Franca and Tinto Cão).
The results of the analysis of leaves, scrapes and shoots revealed that chitosan not only induced the synthesis of phenolic compounds but also facilitated the transfer of polyphenols from the leaves to the grapes. https://doi.org/10.53144/INFOWINE.EN.2021.04.02
Finalist work for the ENOFORUM 2020 Award: video of Rupesh Singh's presentation on the occasion of Enoforum Web (May 5-7, 2020).
Subscribe to Infowine Premium: With the annual Premium subscription, for only € 60 you can access all the content published in the magazine and the new content offered every week!
Chemical, biochemical and physiological factors influence the composition of the retronasal aroma during wine consumption, but not only tannins influence mouthfeel: anthocyanins do too. New methods...
What's the importance of varietal thiols, esters and glycerol content from an organoleptic quality point of view? How do volatile compounds evolve during wine aging and storage conditions? Are ther...
Oxygen consumption and wine resistance to oxidation can be measured and correlations can be found using cyclic voltammetry, and a modern metaboloic experiment produces new knowledge concerning wine...
A series of exclusive videos linked solely on how to combat “naturally” the lack of acidity in wines as well as microbial threats, how to manage MLF and stimulate yeasts potential to obtain high pr...
Cookies are pieces of information that are stored on your device that you can delete or block at any time. The information we collect allows us to improve the service we offer you. No data is disclosed to third parties.
Technical cookies are necessary for the functioning of the site and take into account your browsing preferences, such as language.
Technical cookies
Analytical cookies refer to systems for statistical analysis, in anonymous and aggregate form, relating to the running of the site and user behaviour.
Analytical cookies
Failure to accept the optional cookies will not eliminate the display of any advertisements. You can change your preferences at any time by clicking on the icon in the bottom right-hand corner.