Chemical Problems; 2026; V. 24(4); p. 609-618
RESEARCH OF THE CHEMICAL COMPOSITION OF GRAPE OIL OBTAINED FROM THE EXTRACTION PROCESS WITH THE PARTICIPATION OF VARIOUS SOLVENTS
1 Y.H. Mammadaliyev Institute of Petrochemical Processes of the Ministry of Science and Education of the Republic of Azerbaijan, Baku, Azerbaijan
2 Institute of Bioresources of the Ministry of Science and Education of the Republic of Azerbaijan, Ganja, Azerbaijan
E-mail:
ayshe_hesenova@rambler.ru
Received Date: 2025-06-24
Accepted Date: 2025-09-26
Keywords:
grape, hexane, acetone, Extraction, Linoleic fatty acid, Oleic fatty acid
Notes:
Abstract: Efficient processing of rapidly increasing plant waste, environmental safety, and sustainable use of resources have become important areas in the chemical industry in modern times. Grape seeds are rich in highly unsaturated fatty acids and polyphenol compounds and are selected as a promising raw material for the production of environmentally friendly, plant-based grape seed oils due to their high production as a by-product in the grape processing industry. The article studies the process of extracting oil from the seeds of “Madrasa” and “Bayan-Shira” grape varieties, which are waste, with the participation of solvents (hexane, acetone). The effect of the polarity difference of grape varieties and solvents on the yield and biochemical composition of grape seed oil was studied. 15.4% oil was obtained from the extraction of the seeds of the “Madrasa” grape variety with hexane, and 7.8% from the extraction of the seeds of the “Bayan-Shira” grape variety with acetone. Polyphenols and saturated fatty acids in the grape seed oil fraction were determined by gas chromatography. The presence of components such as chromophore groups, phenols, and tocopherols in the grape seed oil was analyzed by ultraviolet (UV) spectroscopy.