Abstract
Phenolic compound profiles of grape pomace extracts from a mixture of Chilean grape varieties (Cabernet Sauvignon, Carmènere and Syrah) were analyzed. Two extraction methods were used: solvent and soxhlet extraction, followed by fractionation with hexane, chloroform and ethyl acetate. Phenolic compounds in different fractions were identified by HPLC. Ethyl acetate phase of solvent extraction contained a wide variety of phenolic compounds. Hexane phase of the extracts presented lowest diversity. Quercetin was found in almost all fractions.Also, the in vitro antifungal activity of these extracts against the phytopathogenic fungus Botrytis cinerea was evaluated. Hexane or chloroform fractions from extracts obtained by solvent extraction showed the highest inhibitory effect on mycelia growth of this fungus, with IC50 value of 40ppm. In general, ethyl acetate fractions were less active against B. cinerea. Therefore, it can be concluded that grape pomace are a good low cost source to obtain antifungal extracts.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
