酵母懸濁液の沈降に関する研究

概要

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The yeast cells (Saccharomyces cerevisiae) which were used in this study were found to be oblate (Figs. 1-3 and Table 1). The density of the yeast cell was determined as 1.0725±0.0012 g/cm^3.It seems interesting to note that the experimental results of this paper (Fig. 4) together with the published data of Wilson and Oliver are situated below the extrapolation of the empirical equation of Steinour who has made an extensive study on the sedimentation of non-flocculated spherical particles.A specific procedure presented by Hanratty et al. to estimate the rate of sedimentatin of spherical particles is not necessarily reasonable (Fib. 5).A possibility of evaluating the physical factors which are indispensable for the analyses of mass and heat transfer rates in microbial systems-say, for instance, size, shape or specific surface area of microbes concerned-could be emerged out of the correlation of the data ever published on sedimentation or fluidization (Fig. 6).
社団法人日本生物工学会の論文
1962-02-15