Articles

1-MCP EFFECTS ON NEUTRAL SUGAR COMPOSITION OF CELL WALLS IN CARICA PAPAYA ‘KAEK DUM’ AND ‘RED MARADOL’ FRUIT

Article number
1088_24
Pages
167 – 172
Language
English
Abstract
The neutral sugar composition in water-, EDTA-, and Na2CO3-soluble pectin fractions in the pulp of ‘Kaek Dum’ and ‘Red Maradol’ cultivars of papaya (Carica papaya) treated with 100 µl L-1 of 1-methylcyclopropene (1-MCP) and then ripened at 25±2°C was determined.
Results revealed that the predominant neutral sugars in the water-, EDTA- and Na2CO3-soluble pectin fractions were galactose (Gal), followed by arabinose (Ara), and rhamnose (Rha) in both control and 1-MCP treated fruit.
The changes in neutral sugar composition of cell wall in each fraction showed differences on day 4 for both papaya cultivars, especially the changes in water soluble pectin fraction.
The presence neutral sugars in each fraction of 1-MCP treated fruit of both papaya cultivars was within group of control fruit but changes of neutral sugars in 1-MCP treated fruit was lower compared to control fruit.

Publication
Authors
W. Krongyut, V. Srilaong, S. Kanlayanarat
Keywords
soluble pectin, galactose, arabinose, rhamnose
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