Grapeseeds (Vitis vinifera L.) are the seeds of grape berries and contain considerable quantities of oil (15-16%) Grapeseed oil is a by-product of the wine industry and is extracted by using solvents from previously dried grape seeds. The crude oil extracted is dark in color which becomes golden-yellow

Soy (Glycine max Merr.) Belongs to the legume family and is native to East Asia. It is an annual herbaceous plant, now widespread all over the world. Soybean oil is extracted by means of solvents. Crude oil has an amber color. It has a high content of free

Maize (Zea mays L.) is a grass native to North America (the United States is the largest producer in the world). It is an annual plant. The caryopsis contains about 5% of oil of which 80% is concentrated in the germ. To extract the oil, the germ is