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Reference: Chitosan application towards the improvement of grapevine performance and wine quality
Key Statements

Abstract-

Intensification of agrochemicals application in vineyards has raised several concerns in Viticulture and Oenology value chain. Efforts have been developed to optimize grapevine health and productivity, assuring that viticulture is sustainable and competitive in today’s wine market. Viticulture practices have constantly been improved for a more sustainable and environment-friendly production, reducing the application of agrochemicals, replacing them by natural compounds that can have a double effect: protect grapevine against pathogens and improve compounds related to grape organoleptic quality. In this context, the development and optimization of alternative strategies to improve and enhance plant defences and grape/wine quality is becoming a necessity. Since the 1980s, chitosan has become a compound of special interest due to its double effect as elicitor and grapevine biostimulant, representing a complement to soil fertilisation, and reducing the negative effects nutrients leaching into the groundwater. The present review aims to present the wide possibilities of chitosan applications on grapevines to prevent and combat the main diseases and to improve wine quality. In this way, relevant studies about chitosan application will be presented as well as some concerns and limitations in order to cover the knowledge gaps inherent to its application in vineyard and wine as well.

Resumo

A intensificação da utilização de agroquímicos na vinha tem aumentado as preocupações na cadeia de valor da Viticultura e Enologia. Têm sido desenvolvidos esforços no sentido de otimizar a sanidade e produtividade da vinha, assegurando a sustentabilidade e competitividade da viticultura no mercado vitivinícola atual. As práticas culturais têm sido constantemente melhoradas para uma produção mais sustentável e amiga do ambiente, reduzindo a aplicação de agroquímicos, substituindo-os por compostos naturais que podem ter um efeito duplo: proteger a videira contra agentes patogénicos e melhorar os compostos relacionados com a qualidade organolética da uva. Neste contexto, o desenvolvimento e otimização de estratégias alternativas para melhorar cada vez mais as defesas das videiras e a qualidade da uva/vinho tem-se tornado uma necessidade. Desde a década de 1980, o quitosano tornou-se um composto de especial interesse devido ao seu duplo efeito, como elicitador e bioestimulante, representando um complemento à fertilização do solo, diminuindo alguns efeitos negativos devido à lixiviação de nutrientes para as águas subterrâneas. O presente artigo revisão pretende apresentar as possibilidades de aplicação do quitosano na videira, para prevenir e combater as principais doenças bem como para melhorar a qualidade do vinho. Desta forma, serão apresentados estudos relevantes sobre a aplicação de quitosano bem como algumas preocupações e limitações sobre a sua utilização, a fim de colmatar as lacunas no conhecimento inerentes à aplicação deste composto na vinha e no vinho.

Link to paper-

https://www.ctv-jve-journal.org/articles/ctv/abs/2023/01/ctv20233801p43/ctv20233801p43.html

https://doi.org/10.1051/ctv/ctv20233801043


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Due to the complex nature of Ercofid Pure-Liquid and its capability to act on several different wine faults simultaneously, wines can be treated much more precisely and the positive aromas remain unharmed.

Publication Details

Published: 2023
Publication: Ciencia E Tecnica Vitivinicola
Issue: 2023 38-1 p43-59
Author: Soares B 2023
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