Chemical process to improve natural grapevine-cane extract effectivity against powdery mildew and grey mould

Richard, Tristan; Khawand, Toni El; Taillis, David; Costa, Grégory Da; Pedrot, Eric; Cluzet, Stéphanie; Décendit, Alain; Fonayet, Josep Valls

doi:10.20870/oeno-one.2021.55.1.3453

Cited by 3 publications

(2 citation statements)

References 24 publications

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“…184 Schnee et al 52 informed growth inhibition of B. cinerea mycelium applying hydroalcoholic extracts of grape canes. El Khawand et al 185 proposed an oxidative coupling between metals and oligostilbenes to increase the rate and the biological effectivity of cane extract against grapevine infections like downy mildew (P. viticola) and gray mold (B. cinerea). The chemically engineered extract was in general more active than the initial extract against P. viticola.…”

Section: ■ Technofunctional Applicationsmentioning

confidence: 99%

Background and Perspectives on the Utilization of Canes’ and Bunch Stems’ Residues from Wine Industry as Sources of Bioactive Phenolic Compounds

Ferreyra

Fontana

2023

J. Agric. Food Chem.

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Viticulture activity produces a significant amount of grapevine woody byproducts, such as bunch stems and canes, which constitute potential sources of a wide range of phenolic compounds (PCs) with purported applications. Recently, the study of these byproducts has been increased as a source of health-promoting phytochemicals. Antioxidant, antimicrobial, antifungal, and antiaging properties have been reported, with most of these effects being linked to the high content of PCs with antioxidant properties. This Review summarizes the data related to the qualitative and quantitative composition of PCs recovered from canes and bunch stems side streams of the wine industry, the influence that the different environmental and storage conditions have on the final concentration of PCs, and the current reported applications in specific technological fields. The objective is to give a complete valuation of the key factors to consider, starting from the field to the final extracts, to attain the most suitable and stable characterized product.

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Section: ■ Technofunctional Applicationsmentioning

confidence: 99%

Background and Perspectives on the Utilization of Canes’ and Bunch Stems’ Residues from Wine Industry as Sources of Bioactive Phenolic Compounds

Ferreyra

Fontana

2023

J. Agric. Food Chem.

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“…A viable alternative is represented by the vegetal extracts [15] obtained from different plant species which are not toxic to grapevines and humans [16][17][18][19][20]. For example, successful studies against grapevine pathogens were performed using different plants, such as hibiscus [21], garlic and clove [22], magnolia-bark [23], or even grapevine-canes [24] and grape-stalks [25].…”

Section: Introductionmentioning

confidence: 99%

Grapevine Plants Management Using Natural Extracts and Phytosynthesized Silver Nanoparticles

Vizitiu¹,

Sardarescu

Fierăscu

et al. 2022

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Starting from the well-known antimicrobial properties of silver nanoparticles, the goal of this study is to evaluate the influence of two “green” recipes, namely an alcoholic extract of Dryopteris filix-mas (L.) Schott and a dispersion of silver nanoparticles phytosynthesized using the extract on grapevine pathogens. The influence of some grapevine parameters (pith/wood rapport, soluble sugars, starch, total sugars, total water content, length of young shoots, number of grapes) in field experiments was also studied. The study was conducted on four clones (Feteasca alba 97 St., Feteasca neagra 6 St., Feteasca regala 72 St., and Cabernet Sauvignon 131 St.) located in vegetation pots inside a greenhouse. For the phytosynthesis of the silver nanoparticles (AgNPs) we used a scaled-up technology, allowing us to obtain large quantities of nanoparticles-containing solution. The AgNPs analysis by X-ray diffraction and transmission electron microscopy confirmed the synthesis of spherical and quasi-spherical nanoparticles of 17 nm average diameter and 6.72 nm crystallite size. The field experiments registered different responses of the four clones to the treatment, using both the natural extracts and phytosynthesized nanoparticles solution. Both recipes exhibited a protective effect against the Uncinula necator pathogen. For the treatment using phytosynthesized nanoparticles, significant increases in the pith/wood ratio for white wine clones (Feteasca alba 97 St. and Feteasca regala 72 St.) were observed. The biochemical analyses revealed other significant increases of soluble sugars (red wine clones—Feteasca neagra and Cabernet Sauvignon/second year), starch (Feteasca alba and Cabernet Sauvignon in 2021 for both clones), total sugars (Feteasca alba and Feteasca neagra in 2021 for both clones), and of total water content (Feteasca alba and Feteasca neagra in 2021 for both clones), respectively. The applied treatments also led to an increase of young shoots length and grape numbers for all clones as compared to the control (chemical pesticide), which would suggest a potential biostimulant effect of the recipes.

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Identification and structural elucidation of bioactive compounds from Scirpoides holoschoenus

et al. 2022

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Chemical process to improve natural grapevine-cane extract effectivity against powdery mildew and grey mould

Cited by 3 publications

References 24 publications

Background and Perspectives on the Utilization of Canes’ and Bunch Stems’ Residues from Wine Industry as Sources of Bioactive Phenolic Compounds

Background and Perspectives on the Utilization of Canes’ and Bunch Stems’ Residues from Wine Industry as Sources of Bioactive Phenolic Compounds

Grapevine Plants Management Using Natural Extracts and Phytosynthesized Silver Nanoparticles

Identification and structural elucidation of bioactive compounds from Scirpoides holoschoenus

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