Characterization of polyunsaturated fatty acids and antioxidant activity of Vitis vinifera L. (grape) seeds from the Ica Valley, Peru

Translated title of the contribution: Characterization of polyunsaturated fatty acids and antioxidant activity of Vitis vinifera L. (grape) seeds from the Ica Valley, Peru

Felipe Surco-Laos, Jorge A. Garcia, María R. Bendezú, Angel T. Alvarado*, Doris Laos-Anchante, Manuel Valle-Campos, Juan F. Panay-Centeno, Juan J. Palomino-Jhong, Paulina Eliades Yarasca-Carlos, Ana María Muñoz, Mario Bolarte-Arteaga, Mario Pineda, Berta Loja

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Context: In the Valley of Ica-Peru, the seeds of the fruit of Vitis vinifera L. (grape) are residues from the Pisco Industry, and due to their bioactive compounds, they can represent a new economic and sustainable activity for the population of the mentioned Valley. Aims: To characterize polyunsaturated fatty acids from the seeds of the fruit of Vitis vinifera L. (grape) from the Ica Valley, Peru and determine the antioxidant activity in vitro. Methods: The oil from five grape varieties (Quebranta, Moscatel, Torontel, Mollar, and Italia) was obtained by ethereal extraction with ultrasound. The profile of fatty acids was characterized by gas chromatography with a flame ionization detector (GC-FID). The total polyphenolic content was determined by the Folin-Ciocalteu method and antioxidant activity by two in vitro methods. Results: The values obtained from the 5 grape varieties are presented in a range: total polyphenolic content (TPC: 0.59-154 mg GAE/g); linoleic acid content (69.90-71.87%), oleic acid (18.35-19.90%) and others in a lower percentage (p>0.05). Antioxidant activity: DPPH IC50 38.30-48.43 µL; FRAP 0.49-0.77 μg TEAC/g. TPC/DPPH and TPC/FRAP were significantly different (p<0.05), except for the Mollar TPC/FRAP variety (p>0.05). Conclusions: The oils from the seeds of the Vitis vinifera fruit (grapes) that are residues from the production of Pisco present physicochemical characteristics of oils of high nutritional value with a predominance of polyunsaturated fatty acids and potential antioxidant activity.

Translated title of the contributionCharacterization of polyunsaturated fatty acids and antioxidant activity of Vitis vinifera L. (grape) seeds from the Ica Valley, Peru
Original languageEnglish
Pages (from-to)270-280
Number of pages11
JournalJournal of Pharmacy and Pharmacognosy Research
Volume11
Issue number2
DOIs
StatePublished - Mar 2023

Keywords

  • Ica
  • Vitis vinifera
  • in vitro antioxidant activity
  • phenolic compounds
  • polyunsaturated fatty acids

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