著者

土屋 靖彦 鈴木 芳夫

出版者

公益社団法人 日本水産学会

雑誌

日本水産学会誌 (ISSN:00215392)

巻号頁・発行日

vol.28, no.2, pp.231-234, 1962-02-25 (Released:2008-02-29)

参考文献数

12

被引用文献数

2

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The authors determined the general chemical components of the ascidian, Cynthia roretzi V. DRASCHE collected at the Onagawa Bay in Miyagi Prefecture. The results obtained were as follows: 1. The height, width, total weight, test weight, muscle weight and viscera weight of the ascidian were 4.5-13.4cm, 2.7-8.lcm, 17-195g, 11-139g, 3-50g and 2-21g, respectively, (Table 2). 2. The contents of moisture, crude protein, crude fat, crude ash and glycogen were 75.12 ± 1.61%, 9.36 ± 0.85%, 2.35 ± 0.41%, 1.65 ± 0.21% and 11.56 ± 1.42% in the muscle, and 78.31 ± 1.64%, 13.19 ± 0.87%, 3.19 ± 0.44%, 1.75 ± 0.41% and 3.52 ± 0.93% in the viscera, respectively, (Table 3). It should be remarked that the ascidian contained a large amount of glycogen compared with other marine invertebrates such as mollusca and crustacea.

著者

佐藤 実 佐藤 美和 土屋 靖彦

出版者

日本水産學會

雑誌

日本水産学会誌 (ISSN:00215392)

巻号頁・発行日

vol.47, no.12, pp.1605-1608, 1981

被引用文献数

2

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In the strongly acidic amino acid fraction of the muscle extract of abalone <i>Hariotis discus hannai</i> several acidic ninhydrin positive substances were detected by paper electrophoresis and paper chromatography. They were purified by ion exchange chromatography. One of them, which gave a yellow color with ninhydrin reagent and a blue color with isatin, was obtained as colorless crystals. Its chemical structure was established as L-pyrrolidine-2, 5-dicarboxylic acid (IV) by means of mass, NMR, ORD and IR spectrometries. IV has only been found in a red algs <i>Shizymenia dubyi</i> but not in animal tissues until now.