竹材に発生する「かび」とその防黴に関する研究 (第12報) : ペンタクロロフエノール・ナトリウム塩の加圧注入による竹材防黴の中間工業試験 (その1)

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Test on a pilot-plant scale for the prevention of mildew on bamboo by Na-PCP was conducted.1) Of the molds, Alt. tenuis (?) was most resistant in the case of direct inoculation of conidia, and Pen. citrinum in the case of spraying conidial suspensions, when the experiments were carried out on the stem treated with a solution of Na-PCP. The former was inhibited in the growth by a concentration of 4/1000,and the latter by a concentration of 7/1000.2) The Na-PCP solution was more easily permeable to the parenchyma, vessel and sieve tube than to the vasucular bundle sheath.3) Immediately after the bamboo stem was dried in a vessel at 95℃ under reduced pressure (50 mmHg) for 30 minutes, a solution of Na-PCP in a concentration of 7/1000 was introduced through an inlet under reduced pressure. The solution permeated from the tangential section of bamboo stem into the tissues under a pressure of 5 kg/cm^2 within 5 minutes.
1960-03-15