The pumpkin, a berry fruit, originated in the American tropics and its fruit is the heaviest in the plant world, weighing up to 25 kg. The plant is climbing, with yellow flowers. Form ovaries of round or oval shape where the seeds are contained, which are approximately 2 cm in length. Currently, pumpkins also live in temperate latitudes of Europe, America, China, Africa and in the countries of the former Soviet Union. The most important countries in pumpkin cultivation are Austria (Estíria), Hungary, Rumania, Turkey, Italy, the south of Russia, Argentina, China, Japan, Egypt and Syria.
The dried seeds of pumpkin (with oil content = 35%) are squeezed and produce a dark green oil rich in oleic and linoleic acids, which emits a characteristic and nutty taste. The oil is not refined and almost the entire product is marketed cold pressed. Although pumpkin seed oil has a high g-tocopherol content, it becomes rancid quickly, due to its unsaturated nature.
Pumpkin seed oil is a popular table oil for dressing salads. Specifically, pumpkin seed oil is a popular table oil, especially in Austria, Hungary and southern Russia, while in Germany, its high price restricts its use almost exclusively to haute cuisine. In the pharmaceutical market, pumpkin seed oil is used, along with pumpkin seeds (relieves bladder ailments and prostate problems), as a filler for soft gelatin capsules.