<研究報告>綿布につけた細菌の洗い出し効果

概要

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Efficacy of removing bacteria from cotton cloth has been examined with the test cloths, each weighing 0.176 g, smeared with the liquid in which Proteus vulgaris OX-19 are floating, by soaking the subject in phosphoric buffer solution of 17.6 ml (1 : 100) or by shaking the subject in the incubator kept at 30℃. 1. Shaking the subject in the solution 200 times per minute is better than mere soaking the subject in it. 2. By changing the solution each time, 40-55% of bacteria is removed at the first shaking; 10〜15 % is removed at the second shaking. The removal by the first and the second shaking amounts to 55-65 %. There is not much effect by the third or more shaking. 3. Even by shaking ten times, bacteria still remain on the subject, with the result that pH value of urea culture changes from 6.2 to 9.0 after 24 hours in the incubator.
福岡女子大学の論文
1975-03-31