Fig. 1

Representative chromatogram of Oba-kuromozi hexane extracts obtained by a GC–MS analysis using an Rtx-5MS column. Note: The chromatograms show a magnification of the detected range of the terpenoid components. Peak identification: 1, 3-hexanol; 2, 2-hexenal; 3, 3-hexen-1-ol; 4, α-pinene; 5, camphene; 6, α-phellandrene; 7, 3-carene; 8, 2-carene; 9, p-cymene; 10, limonene; 11, 1,8-cineole; 12, γ-terpinene; 13, cis-furan linalool oxide; 14, trans-furan linalool oxide; 15, linalool; 16, camphor; 17, terpinen-4-ol; 18, α-terpineol; 19, piperitone; 20, geraniol; 21, carvacrol; 22, α-terpineol acetate; 23, geranyl acetate; 24, caryophyllene; 25, germacrene d; 26, β-bisabolene; 27, α-bergamotene; 28, nerolidol; and 29, α-bisabolol