@article{oai:u-ryukyu.repo.nii.ac.jp:02006748,
 author = {外間, 宏三 and Hokama, Kozo},
 issue = {7},
 journal = {琉球大学文理学部紀要 理学篇},
 note = {The essential oil（this will hereafter be refered to as HE）obtained by steam distillation of leaves and branchlets of Vitex trifolia,L.（so-called Mitsuba-Hamago or Tachi-Hamago）was removed fatty acids and phenols containing in it by washing with alkali solution and carried out as the following methods．ａ)Fractional Distillation b)Gas Chromatography c）Infra-Red Spectroscopy As the resu1t，the next facts were known．（１）The HE was separated into twelve fractions.（２）Monoterpenoids,such as α-Pinene,β-Pinene and Limonene,are contained in the HE as main components. These substances were identified by a comparison of their Gas Chromatography and IR Spectra with those of pure reference compounds．（３）The distillated fractions,HE7,8～HE10,seem to be alcohol, Ketone and ester（acetate）of monoterpenoids．（４）Considering the b.p.，130-140℃/14mmHg,the distillated fractions，HE11 and HE12,seem to be sesquiterpenoids，C_<15>H_<24>．（５）In a paper, the author Shinozaki reported that the essential oil extracted from Vitex trifolia，L.var.ovata Makino produced in Ogasahara islands contains Camphene.However，the Camphere did not be contained in our HE., 紀要論文},
 pages = {31--43},
 title = {ガスクロマトグラフィーによるみつばはまごうの葉の精油の分析 ― そのモノテルペノイドについて ―}
}