RAVGAN, 1) rangani rostani, mahsulotest, ki az ashyoi khomi ravgandor megirand va asosan (95— 97%) az triglitseridho — payvasthoi organiki, efirhoi murakkabi glitserin va kislotahoi ravgan tarkib yoftaast.
Ilova ba in Ravgani rastani mumu fosfatidho, inchunin kislotahoi ozodi ravgan, lipokhromho, tokoferolho, vitaminho va digar moddahoi rangdeh, tam va buy dorad. Pavgani rastaniho inhoand; Ravganhoi zardolu, chormagzi zamini, shaftolu, khardal, kakov, norjil, raps, kalu, tarbuz, sidra, kapab, juvorimakka, ravgani kunjid, ravgani zagir, ravgani zaytun, ravgani oftobparast, ravgani pakhta, ravgani kunakunjid va gayra.
X o s i ya t i Pavgani rastaniho az rui tarkib va miqdori kislotahoi ravgan, ki triglitseridho ba vujud meorand, muayyan karda meshavad.