フキのトウの成分研究 (第2報)

抄録

Previously, the bitter component of Petasites japonicus was examined and crystals of m.p. 99.5-100° were isolated. In the present series of work, aromatic components were separated from this plant. A neutral essential oil, which seemed to be the main component of its aroma, was separated from the ether extract of this plant and the oil was found to be 1-nonene. The oil also contained angelic, caproic, and caprylic acids as the acidic substances, and butyraldehyde as the neutral substance.