細菌胞子の加熱処理後の発芽時間分布に関する研究

概要

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The effect of heating conditions on the distribution of incubation times required for germination of heat-treated spores of Bacillus subtilis were investigated.The results of these experiments showed that the distribution of incubation times for germination was unaffected by the heating conditions, and the data could be represented by the logarithmic normal-probability distribution expressed by Eq. 4. On the basis of this result, the relation between the genuine thermal death rate observed when heat treated spores were incubated over a sufficient time for complete germination and the rate determined after incubation over a certain constant, shorter time may be represented by Eq. 7. Using the rate constant and reaction order applicable to complete germination, the rate equation for shorter incubation times may be expressed by Eqs. 9 or 10. These equations were confirmed experimentally, as shown in Fig. 6.It is thus possible to estimate the genuine rate equation of thermal death by using the rate data which accrue from the plate culture method over a shorter period of time than that required for complete germination.
社団法人日本生物工学会の論文
1970-06-25