Comparative analysis of total wax content, chemical composition and crystal morphology of cuticular wax in Korla pear under different relative humidity of storage.
Food Chem
; 339: 128097, 2021 Mar 01.
Article
en En
| MEDLINE
| ID: mdl-32979715
ABSTRACT
The cuticular wax of Korla pear stored under different relative humidity (0 ± 1 â, 50-55%, 70-75% and 90-95%) was examined in terms of total wax content, chemical composition and crystal morphology. The cuticular wax was composed of alkanes, olefins, fatty acids, alcohols, aldehydes, esters and terpenoids. High humidity maintained the content of total wax, alkanes and aldehydes at sufficient levels, especially C29 alkane and C18 aldehyde, which could positively regulate the quality of the pear fruits. Cuticular wax contributes to the capacity of preserving water, maintaining cell wall and delaying senescence. Scanning electron microscopy showed that wax crystals appeared as numerous platelets with irregular ovate crystals, high humidity delayed the transformation of wax structure. Taken together, high humidity delayed the ripening and aging by effectively maintaining wax, which was essential for postharvest storage and provide a reference for the production of synthetic wax for Korla pear fruits.
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Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Ceras
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Pyrus
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Almacenamiento de Alimentos
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Frutas
Idioma:
En
Revista:
Food Chem
Año:
2021
Tipo del documento:
Article