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Jasminum polyanthum Franch. - Oleaceae - 多花素馨 duo hua su xin (chin.), pink jasmine,
Evergreen woody twining vine, native to China, cultivated elsewhere as ornamental; leaves opposite, pinnatipartite or pinnately compound, leaflets 5-7; leaflets papery or thin leathery, ovate; flower buds reddish-pink; flowers very fragrant, corolla white, red outside; berry subglobose, black, 6-11mm in diam. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=210000882
Main components of the headspace of J.polyanthum were benzyl acetate (24.0%), cresol (21.6%), linalool (13.1%), β-phenylethyl alcohol (1.5%), benzyl alcohol (4.2%), (Z)-3-hexenol (2.6%), (Z)-3-hexenyl acetate (0.6%)and (Z)-3-hexenyl butyrate. The sweet-vanilic-spicy odor comes from vanillin (0.5%), eugenol (1.1%), cresol, creosol (3.5%) and methyl cinnamate (0.9%). (Z)-Jasmone and methyl jasmonate, two characteristic compounds present in the headspace of J.grandiflorum, could not be found. The animalic indol, wich characterizes commercial absolutes of jasmine, was found only in traces. Important trace components determined by GC-O were β-ionone, γ-decalactone, δ-decalactone, 2-isopropyl-3-methoxy pyrazine and 2-isobutyl-3-methoxy pyrazine, 1-octene-3-one, (2E,6Z)-nona-2,6-dienal and (2E,6Z)-nona-2,6-dienol.
[New data on trace components with sensory relevance in flower scents, Brunke, E.J., Rittler, F., Schmaus, G., Dragoco Rep., 1, 1996, 5-21]
„Jasminum polyanthum flowers“ by B.navez
CC BY-SA 3.0 via Wikimedia Commons