onion_leftOnions is one of the oldest edible source known to humankind, is found in a bewildering array of recipes and preparations, be it your favorite salad, gravy or curries. It has also been in used in traditional medicines since ancient times for its health promoting and curative properties. Botanically, this bulb vegetable belongs to the Alliaceae family of the genus Allium and has scientific name: Allium cepa