Characterization of an Antioxidant and Antimicrobial Extract from Cool Climate, White Grape Marc.
antimicrobial activity
antioxidant activity
grape tannin extract
phenolic compounds
waste valorization
Journal
Antioxidants (Basel, Switzerland)
ISSN: 2076-3921
Titre abrégé: Antioxidants (Basel)
Pays: Switzerland
ID NLM: 101668981
Informations de publication
Date de publication:
20 Jul 2019
20 Jul 2019
Historique:
received:
02
07
2019
revised:
16
07
2019
accepted:
18
07
2019
entrez:
24
7
2019
pubmed:
25
7
2019
medline:
25
7
2019
Statut:
epublish
Résumé
Valorization of agricultural waste has become increasingly important. Wastes generated by wineries are high in phenolic compounds with antioxidant and antibacterial properties, which contribute to phytotoxicity, making their immediate use for agricultural means limited. Utilizing a water-based extraction method, the phenolic compounds from winery waste were extracted and purified. The resulting extract was characterized for phenolic composition using high-pressure liquid chromatography-ultraviolet/visible and electrochemical detectors (HPLC-UV/Vis, ECD) for monomers, and spectral assessment of the tannins present using attenuated total reflectance- Fourier transform infrared (ATR-FTIR), FT-Raman, and solid-state nuclear magnetic resonance (SSNMR) spectroscopies. The extract's antioxidant activity was assessed by the scavenging of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical and Folin-Ciocalteu total phenolic assay, and was found to be as effective as a commercially obtained grape extract. The extract's antimicrobial efficacy was tested for minimum bactericidal concentration using
Identifiants
pubmed: 31330796
pii: antiox8070232
doi: 10.3390/antiox8070232
pmc: PMC6680815
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Ministry of Business, Innovation and Employment
ID : UOAX1410
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