Supercritical and subcritical extracts of seeds and skins of red grapes of the VITIS LABRUSCA (FOX GRAPE) family
DOI:
https://doi.org/10.52340/atsu.2025.2.26.01Keywords:
bioflavonoids, supercritical and subcritical extracts, fatty acids, chromatographic methodAbstract
The article investigates the optimal parameters of supercritical and subcritical fluid extraction of the seeds and skins of the Ojaleshi hybrid red grape variety. The fatty fraction was obtained from the seeds by supercritical fluid extraction, and the percentage ratio of carboxylic acids therein was determined. The optimal parameters of subcritical extraction from the cakes remained after separating the fatty fraction from the crushed seeds, and the grape skins were determined. The biologically active compounds and antioxidant activity of the hydrophilic extracts were studied. The quantitative composition of anthocyanins in the hydrophilic extract of the grape skin of Ojaleshi variety and the percentage content of monoglycoside and di-glycoside forms in it were studied. We evaluated the efficiency of the extraction process by the yield of the fatty fraction, fatty acid composition, phenolic compound content, and antioxidant activity.
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