Investigating the composition of fatty acid, tocopherol, and sterol contents and antioxidant capacity of oils from the seeds of

Background/aim: Vegetable oils are considered a vital source of energy when glucose cannot be utilized. Therefore, research on new sources of oil that demonstrate nutritional value is necessary. Okra ( Materials and methods: The initial part of this study involved oil extraction using the Soxhlet apparatus with various solvents, followed by the conversion of FAs into methyl esters for analysis via gas chromatography. The second part focused on quantifying tocopherols and sterols using the Emmerie-Engel and Liebermann-Burchard methods, respectively. In the final part, the antioxidant activity of okra oils was measured using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical test. Results: According to the findings, palmitic acid (28.43%-39.83%) was the primary saturated FA, whereas linoleic acid (19.58%-44.07%) and oleic acid (21.60%-23.59%) were the primary unsaturated FAs. Additionally, the results indicate that the oil extracts from okra seeds contain a substantial amount of tocopherols and a significant quantity of sterols. The results of the DPPH assay show that, while the antioxidant capacity is lower than that of vitamin E, it exceeds that of other vegetable oils. Conclusion: Our research findings have allowed us to classify this oil as an edible vegetable oil.