Studies of the dynamics of the optical properties of apples of different varieties during their storage in the refrigerator

Abstract

The paper presents the results of a study of the dynamics of the optical properties of apples of different varieties during their storage in a refrigerator.
As objects of research, apples of winter varieties "Semirenko" and "Kuibyshevskoe" were taken. Storage of apples was carried out in the refrigerator at a temperature of +5 degrees for 2 months. Apples were stored in a transparent plastic bag and without it, as well as with and without lighting.
The experiments were carried out using a system of laser confocal fluorescence microscopy assembled on the basis of an Olympus IX71 microscope and an ANDOR laser combiner, as well as using fluorescence analysis using a Sharmrock S R-303i spectrometer (Andor Technology Ltd., UK), an ANDOR DV- cooled digital camera. 420A-OE (Andor Technology Ltd., UK) and computer.
As a result of experimental studies using the fluorescent method and fluorescent microscopic analysis, it was found that the amount of fluorescent chlorophylls in the skin of apples is maximally preserved in the group of apples that were stored in a transparent plastic bag and in the dark, which indicates that the method of storing apples in packaging and in the absence of light is the most optimal and allows you to save all the useful properties of apples. With other storage methods, a decrease in chlorophylls in the skin of apples and wrinkling of the skin is observed.

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Elena Timchenko
Samara University
Russia

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