Fractal analysis of the long-term storage influence on the apple flesh
2006
Kubik, L. (Slovak University of Agriculture, Nitra (Slovak Republic). Department of Physics)), E-mail: Kubic@uniag.sk
The paper deals with a study of apple flesh of cultivars Angold, Melodie, Selene and Rezista during long term storage in standard conditions. The method of fractal analysis is applied for study of the changes in the apple structure. Fractal dimension is determined as the parameter, which express the condition of the apple flesh. Fractal dimension is a non-integer number, which has relation to the fragmentation of the apple flesh structure and to its porosity. The dimensions DBW, DBBW and DWBW, which characterized the border line among pores and particles of apple structure, particles and pores of apple flesh respectively, were evaluated by software HARFA. Dimensions were determined from of 40 - times magnified digital images of the apple flesh, which were taken by CCD camera from optical microscope. The dependencies of fractal dimensions on the time of storage and bulk density and the dependencies of bulk density on time of storage were determined.
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