Salam koja

Kandungan minyak atsiri pada daun koja dilaporkan ada 34 jenis, di antaranya α-pinena (51.7%), β-phellandrena (24.4%), sabinena (10.5%), β-pinena (9.8%), β-caryophyllene (5.5%), limonena (5.4%), bornyl acetate (1.8%), terpinen-4-ol(1.3%), γ-terpinena (1.2%) dan α-humulena