Comparative optical analysis of the composition of apples under different processing conditions

Abstract

The paper presents the results of studies of the dynamics of optical properties of apples of different varieties during storage. A comparative optical analysis of the composition of fresh and dried apples of different varieties was also carried out. Three varieties of apples were used as objects of research: "Konfetnoe", "Semirenko" and "Kuibyshevskoe". These apple varieties were stored for 1.5 months in a refrigerator in special packaging and without it. Dried apples were obtained from green and red apple varieties during their 8-hour drying in an oven at a temperature of 60-80 degrees. The experiments were carried out using a laser confocal fluorescence microscopy system assembled on the basis of an Olympus IX71 microscope and an ANDOR laser combine, as well as using fluorescence analysis using a Sharmrock S R-303i spectrometer (Andor Technology Ltd., UK), a digital cooled ANDOR DV-420A-OE camera (Andor Technology Ltd., UK) and a computer.
The work introduced an optical coefficient that determines the beneficial properties of apples.
As a result of the experimental studies conducted using the optical methods used, it was found that the most optimal way to store all the studied varieties of apples is packaging, which allows preserving the beneficial properties of apples over a long period of storage.
Using optical methods, it was found that dried red apples retain more beneficial properties than green apples.
Comparative optical analysis of fresh and dried apples showed that the most beneficial are fresh green apples.

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Elena V. Timchenko
Samara University
Russia

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