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No.8 (1965/06) >

Title :月桃の葉の精油成分について
Title alternative :On the Essential Oil in the Leaves of Alpinia speciosa K.Schum
Authors :外間, 宏三
Authors alternative :Hokama, Kozo
Issue Date :Jun-1965
Abstract :The essential oil(285.5g)obtained by steam distillation of leaves of Alpinia speciosa K.Schum (so called Getto,697.4kg)was freed from fatty acid and phenols by washing with 3% sodium hydroxide and water.The oil was then successively evaporated off after drying over sodium sulfate,yielding a neutral material(253.7g). This substance was divided by fractional distillation into 13 parts.These fractions were gas chromatographed and investigated by IR spectroscopy.After the result,the next facts were known:1.The monoterpenoids,such as α-pinene.β-pinene,camphene,limonene,p-cymene,and camphor,were identified,and their contents being 7.8%,2.2%,3.8%.4.8%, 6.02% and 2.4%,respectively.2.A paper reported that the contents of camphor and campbene were 30% and 17%,respectively.The contents of them were,however,known to be 2.4% and 3.8%,respectively,by the gas chromatograph.
Type Local :紀要論文
ISSN :0557-577X
Publisher :琉球大学文理学部
URI :http://hdl.handle.net/20.500.12000/23068
Citation :琉球大学文理学部紀要 理学篇 no.8 p.65 -76
Appears in Collections:No.8 (1965/06)

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