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Guangzhou Scikoon Industry Ltd. Co.
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2024 Technical Program

Lipid Oxidation and Quality

Session: Emerging Trends in Sustainability and Green Chemistry in Lipid Oxidation

Extracellular vesicles from olive co-products: Isolation, characterization and evaluation of their antioxidant activity.

Tuesday, April 30, 2024
10:55 AM – 11:15 AM EDT
Room: 524c
Abstract:

Extracellular vesicles are nanoscopic membrane structures thatare involved in intercellular communication and have interesting functional properties. Recent works have highlighted the existence of such vesicles in several plants. Moreover, other studies demonstrated that extracellular vesicles can be used as new drug delivery systems for bioactive cargo molecules. Plant Extracellular vesicles are around 50–110 nm size and may naturally contain some phenolic compounds. For example, naringin and naringenin have been detected in grape fruit extracellular vesicles gingerol and shogaol in ginger, quercetin and quercetin derivatives in tea leaves. In this study, we have isolated extracellular vesicles from the two main olive co-products (wastewaters and pomace) and characterized their main physico-chemical properties (size, charge, multimolecular structure) and their molecular composition in terms of lipid classes and phenolic contents. Finally, the radical scavenging activity of extracellular vesicles was evaluated as well as their potential as new antioxidants systems for the preservation of lipid oxidation in emulsions. Results were also compared to the ones obtained with synthetic vesicles enriched in pure antioxidants molecules.