抄録
The contents of the volatile components of Laminaria sp. differ according to habitat and quality. This Laminaria from Hidaka district contains larger amount of volatile components than that from Kushiro district, while the content is lager in better quality products. The fatty acid fraction saponified with 3% potassium hydroxide contained myristic acid, and there was no presence of carbonyl compounds possessing a phenol radical. Neutral fraction from the volatile components of Laminaria sp. contained uneicosane and also substances which showed silvery white and yellow fluorescence. These substances were purified through column chromatography and their elemental analyses gave the molecular formulae of C14H15O2 and C11H20O.