著者

藤沢 浩明 助川 輝武

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.22, no.1, pp.30-34, 1956-05-25 (Released:2008-02-29)

参考文献数

7

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In the mild winter, agar s ?? ms to be often spoiled during the manufacturing process. It has been investigated that the spoilage of agar is due to the actions of some putrefactive bacteria, especially due to the activity of agarase of agar-decomposing bacteria. In the application of antiseptics to prevent agar from rottennes, both the bactericidal effect on these bacteria and the inhibitory effect on agarase should be considered. As the first step, we experimented on the effects of several antiseptics on agarase. The resu ?? s were as follows: (1) Sodium hypochlorite inhibited the activity of agarase at the concentration of 0.01_??_0.1% (as available chlorine). (2) Dehydro acetic acid (D. H. A.) and sorbic acid were effective, but the inhibitory effects were entirely due to pH lowering. (3) 5-nitro-2-furfuryl acryl amide (Z furan), hydrogen peroxide, p-hydroxyl-butylbenzoate (P. O. B. B.) and benzalkonium chloride (B. A. C.) were ineffective.