食品のガス殺菌に関する研究 : 第2報殺菌作用に対する湿度の影響

概要

論文の詳細を見る
From the viewpoint that the ERH (equilibrium relative humidity) of a sample, especially of microbial cells within a sample, shold be a controlling factor affecting the activity of gaseous sterilants, experiments were conducted under conditions where the vapor pressure of the system concerned was carefully controlled.Spores of Bacillus subtilis were employed throughout. As carriers, filter paper and powdered pulp were used. The time-course of dehydratin and the moisture adsorption characteristics of the sample (carrier plus spores) were previously investigated (Fig. 1〜4).The general experimental procedure was shown diagrammatically in Fig. 5. As gaseous sterilants, propylene oxide (PO), ethylene oxide (EO) and β-propiokactone (BPL) were used.When the RH of the atmosphere in the sterilizing chamber was equal to the ERH of the sample, sporicidal activities of PO and BPL became higher as RH was increased. With PO, the activity seemed to be maximum at about 70% RH (Table 1〜2).The activity of BPL was much more sensitive to RH than that of PO, especially in the lower RH range (Fig. 7).The behavior of the activity of EO toward RH was somewhat complex ; no steady response to RH was observed (Table 3,Fig. 7).In the case where the initial RH was different from the initial ERH of the sample, both RH and ERH were effective on the activities of PO and BPL (Table 4,5). But the ERH of sample seemed to be under controll (Fig. 8).
社団法人日本生物工学会の論文
1964-02-15

食品のガス殺菌に関する研究 : 第2報殺菌作用に対する湿度の影響

スポンサーリンク

概要

著者

関連論文

スポンサーリンク

食品のガス殺菌に関する研究 : 第2報 殺菌作用に対する湿度の影響

スポンサーリンク

概要

著者

関連論文

スポンサーリンク

食品のガス殺菌に関する研究 : 第2報殺菌作用に対する湿度の影響