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1 Progress on Chemistry and Application of Chitin and its Derivatives

1 2020

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DYNAMICS OF PHYSIOLOGICAL AND BIOCHEMICAL PROCESSES IN AVOCADO FRUIT TREATED WITH PREPARATIONS DURING STORAGE

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Kolodyaznaya V. S. , Burova T. E. , Kiprushkina E. I. , Shestopalova I. A. , Broyko Y. V. , Filippov V. I. , Klementiev D. A. , Kostyuk V. A.

Progress on Chemistry and Application of Chitin and its Derivatives

2020

tom 25

111 - 123

This article presents data on the effect of processing avocado fruit on the dynamics of physiological and biochemical processes during low-temperature storage. The aim was to explore the effect of processing Fuerte avocado fruit with ‘Agrokhit’, ‘KHAN-8’ and ‘Extrasol-90’ preparations on the dynamics of physiological and biochemical processes during storage. The effectiveness of the preparations on the change in physiological and biochemical processes during storage of avocado fruit was evaluated by the release of carbon dioxide during their respiration, by the activity of terminal oxidases and the hydrolysis of pectin substances. The respiration rate, the activity of terminal oxidases – catalase, peroxidase, phenol oxidase, tyrosinase – and the kinetics of the hydrolysis of protopectin and pectin depended on the type of preparation and the duration of storage. Processing avocado fruit with the examined preparations did not violate metabolism, which was regulated by change in the activity of terminal oxidases of the plant cells, a reduced respiration rate and the rate of hydrolysis of protopectin and pectin. As a result, there was an increase in the storage period and fruit ripening. To slow down the physiological and biochemical processes – to increase the duration of ripening and storage of avocado fruit – it is recommended that they be treated with chitin derivatives Agrokhit and KHAN-8.