海藻のいわゆる Fucosan に就いて
1951 年 64 巻 759-760 号 p. 192-195
詳細
1951 年 64 巻 759-760 号 p. 192-195
The author has discovered by microchemical tests that the numerous small vesicles in the cells of frond tissues and rhizoids of Dictyopteris divaricata (Okam.) Okam. contain a kind of essential oil consisting of some terpene compounds which have never been reported in seaweeds heretofore. These vesicles are seemingly identical with “Fucosanblasen” named by Kylin or “Physoden” by Crato. After some qualitative tests, the following characters are observed: 1) they are highly refractive (being probably responsible for the iridescence of the frond); 2) they are stained red with Vanillin and conc. HCl; 3) they turn black on treatment with osmic acid; 4) they give no coloration with methylene blue; and 5) they are distinguished from tannin by their solubility in fat solvents such as ether and benzol.
