17th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings, Volume II) (2024) [P-05-P, pp. 689-692]
AUTHOR(S) / АУТОР(И): Edina Avdović 
, Dušica Simijonović , Sandra Jovičić Milić , Danijela Stojković , Dejan Milenković , Dušan Dimić , Zoran Marković
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DOI: 10.46793/Phys.Chem24II.689A
ABSTRACT / САЖЕТАК:
The aim of this study was to present the results of the antioxidant capacity of Merlot grape skin extract (GSE) originating from the Šumadija district. The extract was obtained utilizing the ultrasonic extraction technique in 50% ethanol. The antioxidant capacity of the GSE was determined using various spectroscopic methods such as DPPH, ABTS, and FRAP. Moreover, Folin–Ciocalteu method was used for determination of total phenolic contents in the GSE. The obtained results show that the ethanolic extract shows a good scavenging activity towards ABTS radicals, and a slightly weaker affinity to the DPPH radical. Also, this extract shows a reduction potential as measured by the FRAP assay, as well as a high concentration of phenolic compounds. These results indicate that the GSE exhibits remarkable antioxidant properties and very high TPC, suggesting its potential application in pharmacy and as a functional food.
KEYWORDS / КЉУЧНЕ РЕЧИ:
ACKNOWLEDGEMENT / ПРОЈЕКАТ:
This research was supported by the Science Fund of the Republic of Serbia, GRANT No. 11067, Promis 2023, Unleashing Nature’s Potential: Using Grape Skin Extract and Sustainable Materials for Advanced Chronic Wound Therapy-GraSP_MAT; GRANT No. 14848, Proof of Concept, Unleashing nature’s potential: Development of Additive-Free Prokupac Grape Skin Topping as Functional Food –GraSP.
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