海藻の揮発成分に関する化学的研究-XVIII : コンブLaminaria sp.の揮発成分のgas chromatographyによる分析(その4)
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In the present series of work, the auther has been studing such subjects as (a) the socalled “tang of the sea”, (b) the principle of aromatic and odoriferous compounds of seaweed, (c) pharmacological and antibacterial activity of these volatile compounds, (d) the biochemical significance of the volatile constituents (e) the difference between the volatile constituents of Chlorophyceae, Phaeophyceae and Rhodophyceae and (f) the difference between the volatile constituents of seaweed and land plants. In the preceding papers of the series, the presence of methanethiol, formic, acetic, propionic, isovaleric, caprylic, caproic, myristic, palmitic, linolic acids, p-cresol, benzaldehyde, n-valeraldehyde, a- methylfurfural, furfural, furfuryl alcohol, 1:8-cineol, d-limonene, and uneikosane was confirmed in Laminaria sp. In the present report, the presence of the following compounds was confirmed.: 1. Hydrogen sulfide and very small amount of dimethylsulfide were found in the gaseous phase. 2. Very little amount of acrylic acid was confirmed in lower fatty acid fraction by gas chromatography. 3. Heptenal was separated in carbonyl fraction by column chromatography and confirmed by elemental analysis. 4. In neutral fraction, the presence of furfuryl alcohol, a-pinene, d-limonene, 1:8-cineol, p-cymene, myrcene, ocimene, cotenol-3, n-octanol, n-heptanol, n-octylalcohol and linallylacetate were cofirmed by gas chromatography. Of the volatile constituents, dimethylsulfide, bedzaldehyde, n-valeraldehyde, a-methylfurfural, furfural, a-pinene, d-limonene, 1:8-cineol, myrcene, ocimene, p-cymene, octenol-3, n-heptanol, n-octyl alcohol, linallylacetate are aromatic compounds of Laminaria sp., while hydrogen sulfide, methanethiol, trimethylamine, formic, acetic, propionic, acrylic, butyric, isovaleric, caprylic, caproic, linolic acids and p-cresol are odoriferous compound.
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