じゅずだま属植物成分の研究 (第1報)

じゅずだまCoix Lachryma-Jobi L.根の成分に就いて

抄録

1) The root of Coix Lachryma-Jobi L. was extracted and palmitic and stearic acids were isolated from the acid portion.
2) A new compound, coixol, m, p. 151-152°, C₈H₇O₃N, was isolated from a portion soluble in alkali hydroxide but insoluble in petroleum ether.
3) The sterol fraction obtained from the neutral portion yielded stigmasterol and β- and γ-sitosterols. α-Sitosterol fraction was not examined in detail due to the small amount available.
4) From the water-soluble portion, after removal of the above, crystals of potassium chloride was isolated and the presence of glucose was detected.