@article{oai:ir.kagoshima-u.ac.jp:00012868, author = {片山, 輝久}, journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University}, month = {2016-10-31}, note = {The present work was undertaken to clarify and summarize the difference in the volatile constituents of chlorophyceae, rhodophyceae and phaeophyceae, and to determine the principles of aromatic and odorous components of algae. During the course of this work, the author found that the volatile constituents of algae have antibacterial activity, anthelmintic action, effect of contracting Eisenia feotida muscle, and pharmacological action against Ascaris suilla. Such volatile constituents were found differ with the kinds of algae. The aroma-giving components of algae are benzaldehyde, valeraldehyde, 5-methylfurfural, furfural, furfuryl alcohol, geraniol, d-limonene, α-pinene and the characteristic odor of the algae was found to be amine fraction, lower fatty acids, methanethiol, and phenol fraction., When the middle segments of the earthworm, cut for 2 cm from the body of about 8 cm in length, fixed on the hooks of the recorder, were dipped in a Ringer solution, the muscle registered normal cycles of contraction. Different oscillations were drawn by the shrinking muscle under the inffuence of several volatile fractions added at various concentrations of a Ringer solution. Of these fractions, carbonyl and terpene, as dilute as 0.0001%, had strong contractive effect, while dimethylsulfide and fatty acid fractions did not seem to react against Eisenia feotida., Pharmacological action on Ascaris suilla was tested by the U-tube method. Test sample was usually made into 1:5,000 dilution and one ascaris (Ascaris suilla) was added to every 200 cc of the solution in the U-tube kept at 30°-33°C. Among the volatile constituents from Ulva pertusa, Enteromorpha sp., Sargassum sp., and Digenia simplex, fatty acid fraction depressed the locomotion of the ascaris, especially in higher fatty acids. The neutral fraction showed a curling effect on the ascaris and this action was proved to contain linalool by thin layer chromatography and gas chromatography and the pure specimen of linalool showed the same action. Aldehyde fraction also elicited the same effect, the fraction contained furfural and 5-methylfurfural, but the pure specimen of these compounds had only a week action., The volatile constituents were separated into a lower fatty acid, higher fatty acid, carbonyl and terpene fraction. The antibacterial action of these fractions were determined on the bases of turbidity and plate culture observation. These fractions all showed antibacterial action against Micrococcus Pyogenes var. auraus 209p and Esherichia coli in 2,000-3,000 dilution. The biochemical significance of the compounds which are obtained as volatile constituents is discussed. Alanine was synthesised from acrylic acid and ammonia solution in the laboratory. It should be noted that acrylic acid which has been detected in algae by gas chromatography technique, may be derived to alanine by algae in the process of assimilating nitrate or nitrite.}, pages = {58--72}, title = {海藻の揮発成分に関する化学的研究 XX : 海藻の揮発成分の薬理作用並びにacrylic acidの生化学的存在意義}, volume = {13}, year = {} }