Abstract
As long ago as 1924 Kidd1 produced a “progress curve of fungal invasion” which was used by her and co-workers2,3 for assessing the storage life of apples. Similar curves have been obtained by workers in the Division of Food Preservation, Commonwealth Scientific and Industrial Research Organization, for the development of physiological disorders in cool stored fruits (Fig. 1). We have found this relationship may be made linear, in each case, by transforming percentage disorder to a probit4 and storage time to a logarithm (Fig. 2). In addition to the advantage of linearity for calculating estimates, this transformation shows storage life is log normally distributed. Since such a distribution has a wide occurrence it is probable that it will apply to other disorders.
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References
Kidd, M. N., Rep. Food Invest. Board, 1924, 43.
Kidd, F., and West, C., Rep. Food Invest. Board, 1925, 1926
Kidd, F., West, C., and Kidd, M. N., Food Invest. Board Spec. Rep. No. 30 (1927).
Finney, D. J., Probit Analysis, second ed., 318 (Camb. Univ. Press, 1952).
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ROBERTS, E., SCOTT, K. Estimation of Storage Life of Fruits. Nature 195, 824–825 (1962). https://doi.org/10.1038/195824a0
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DOI: https://doi.org/10.1038/195824a0
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