Stibenoids eco-extraction from vineyard coproducts: vitisin B extraction by ASE compare to sc-CO2
| dc.rights.license | open | en_US |
| hal.structure.identifier | Chimie et Biologie des Membranes et des Nanoobjets [CBMN] | |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | ELSHAZELY, Maryam | |
| hal.structure.identifier | Chimie et Biologie des Membranes et des Nanoobjets [CBMN] | |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | HEGAZY, Tasnim | |
| hal.structure.identifier | Chimie et Biologie des Membranes et des Nanoobjets [CBMN] | |
| dc.contributor.author | HARSCOAT-SCHIAVO, Christelle | |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | AHMED, Omar-Shaaban-Omar | |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | WAFFO-TEGUO, Pierre | |
| hal.structure.identifier | Chimie et Biologie des Membranes et des Nanoobjets [CBMN] | |
| dc.contributor.author | SAVOIRE, Raphaëlle | |
| dc.date.accessioned | 2025-04-03T12:31:53Z | |
| dc.date.available | 2025-04-03T12:31:53Z | |
| dc.date.conference | 2024-10-28 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/205924 | |
| dc.description.abstractEn | The vineyard industry is a major economic sector in the Bordeaux region, which is looking for new ways to valorize its by-products. Stilbenoids a class of non-flavonoid polyphenols are a group of bioactive molecules found in plants and particularly abundant in grapevines, offer promising opportunities. This group includes the well-known resveratrol and its oligomers such as E-vitisin B (a resveratrol tetramer). E-Vitisin B also called r-viniferin has shown significant antimycotoxin activity, making its extraction highly valuable. Previous studies have identified grapevine roots as a rich source of E-vitisin B highlighting the potential to transform vine co-products into new plant-derived bioactives. Objective The aim of this work is to evaluate different eco-extraction methods for recovering vitisin B from grapevine roots. The processes will be compared in terms of vitisin B yield and selectivity. Methods Supercritical fluid extraction (SFE) was performed with home made setups on 4 and 30 g of ground vine roots. Effects of temperature, pressure, co-solvent composition and ratio with sc-CO2 were studied. Accelerated solvent extraction (ASE) was performed on Dionex ASE 350 system (Sunnyvale, California) at 100 bar on 5 g of plant powder mixed with sand. Number of cycles, solvent composition (EtOH / water), contact time and temperature were varied. E-Vitisin B was quantified through HPLC-DAD method. Results A full factorial 33 design of experiments conducted on ASE coupled with an optimization leads to a maximal yield of 22.3 g vitisin B/ kg dried roots. The major factor affecting the yield was the composition of the solvent. For SFE, a Box Behnken design of experiment leads to a maximal yield of 12.5 g/kg. The pressure was the main factor affecting the extraction. Selectivity of extraction for SFE was mainly determined by the co-solvent composition. So, both processes allowed for E-vitisin B extraction with quantities compatible with a high added-value use. Activity tests will be conducted to check the bioactivity of the extracts and the influence of the non-E-vitisin B compounds co-extracted. | |
| dc.language.iso | EN | en_US |
| dc.subject.en | Accelerated Solvent Extraction (Ase) | |
| dc.subject.en | E-Vitisin B | |
| dc.subject.en | Stilbenoids | |
| dc.subject.en | Supercritical Co2 Extraction | |
| dc.title.en | Stibenoids eco-extraction from vineyard coproducts: vitisin B extraction by ASE compare to sc-CO2 | |
| dc.type | Poster | en_US |
| dc.subject.hal | Sciences du Vivant [q-bio]/Biologie végétale | en_US |
| bordeaux.hal.laboratories | Oenologie - UMR 1366 | en_US |
| bordeaux.hal.laboratories | Chimie et Biologie des Membranes et des Nanoobjets [CBMN] | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | Bordeaux INP | en_US |
| bordeaux.institution | INRAE | en_US |
| bordeaux.institution | CNRS | |
| bordeaux.conference.title | Green Extraction of Natural Products 2024 | en_US |
| bordeaux.country | fr | en_US |
| bordeaux.conference.city | Compiègne | en_US |
| hal.invited | oui | en_US |
| hal.conference.end | 2024-10-30 | |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | false | |
| dc.rights.cc | Pas de Licence CC | en_US |
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