Vanillic acid is used in the food industry and perfumery. and the optimization of its extraction process from the natural source is important for saving time and money. The presence of vanillic acid in pumpkin seeds was proven using HPLC analysis. Computational optimization of the extraction shows that for the concentration of ethanol 40% and solmodul: V/m=20. https://vacuumdoctores.shop/product-category/upright-vacuum-cleaner/