"ふなくいむし"消化管内繊維素分解菌に関する研究 - III : 内臓酵素と細菌酵素の関係

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In the previous works we reported about the enzyme of the cellulose decomposing bacteria isolated from ship-worm. In the present papers the authors treated the experimnts carried out to find out the proportional relation between the Cellulase of bacteria and that in the body of ship-worm with the following results. (See Table 1, 2, Fig. 1, 2). In the two prepared enzymes extrected from the ship-worm liver and from bacteria, the activity of Xylanase was more effective than in the case of other Polyase, the action of Protease and Lipase being very faint. The existence of Catalase in the bacteria was not confirmed. As to the enzymatic hydrolysis of various cellulose by these tow Cellulases, the regenerated cellulose (e.g. filter paper and Soda-pulp) was decomposed far more easily than the native cellulose (e.g. absorbent cotton), and the action of them to the woods was showed to be done in proportion to the degree of powdering and delignification. The optimum pH of bacterial Cellulase was found to be 6.4 and that of ship-worm enzyme to lie at the tow points of 5.6 and 6.6. (See Fig. 2). From these results, the existence of some influences of the bacteria over the cellulose-decomposing action in the body of ship-worm was conjectured.
鹿児島大学,カゴシマダイガク,Kagoshima Universityの論文
1954-05-10