海藻の揮発成分に関する化学的研究-XIII : コンブLaminariaの揮発成分について
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1. The presence of dimethyl sulfide, which was found to be present in the volatile component of Ulva pertusa5), Enteromorpha sp.11), and in Codium12), was not detected but the presence of methanethiol, whose presence in Digenoa simplex had been established4, was demonstrated. 2. As volatile components of Laminaria several compounds were isolated such as methanethiol, trimethylamine, acetone, propionaldehyde; amine I (picrate, m.p. 196-198°; picrolonate m.p. 209-210°C.), amine II (picrate, m.p. 188-189°C.; picrolonate, m.p. 192-193°), formic, acetic, propionic, butyric valeric, caproic, capric, palmitic acids, p-cresol, benzaldehyde, valeraldehyde, α-methylfurfural, furfural, and a carbonyl compound which formes a 2, 4-dinitrophenylhydrazone of m.p. 203-204°C. 3. The aroma-giving components of Laminaria sp. are benzaldehyde, valeraldehyde, α-methylfurfural, furfural, a carbonyl compound which forms a 2, 4-dinitro-phenylhydrazone of m.p. 203-204°C., and terpenes (α-pinene, d-limonene, linalool and geraniol10)). It was found that the characteristic aroma of Laminaria sp. can be artificially made for the first time when these aromatic components are mixed with a small amount of the odorous components of Laminaria sp., such as methane-thiol, trimethylamine, amines I and II in the condensed phase, lower fatty acids, and unsaturated fatty acids. The author expresses his deep gratitude to Prof. Tomiyama of the University of Kyushu for his kind guidance throughout the course of this work. A part of the expenses for this work was defrayed by a Grant in Aid for Scientific Research for 1957 from the Ministry of Education which is gratefully acknowledged.
- 公益社団法人 日本水産学会の論文
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