Journal
SCIENTIA HORTICULTURAE
Volume 284, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.scienta.2021.110125
Keywords
Ascorbic acid; Colour variables; Flesh firmness; Free amino acids; Internal browning incidence; Soluble carbohydrates
Categories
Funding
- Rural Development Administration, the Republic of Korea [PJ01190804]
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1-MCP treatment on 'Wonhwang' pears resulted in higher flesh firmness, delayed core and cortex browning, but also increased shrivelling in the fruit. The treated fruit had higher levels of sucrose, dehydroascorbic acid, alanine, threonine, and γ-aminobutyric acid, and lower levels of fructose and glucose. The effects of 1-MCP on fruit physiology and metabolomic responses were analyzed using heatmap matrices and principal component analysis.
'Wonhwang' pears are susceptible to the development of cortex and core browning after harvest. The effects of 1 mu L L-1 1-methylcyclopropene (1-MCP) treatment on fruit quality, internal browning incidence, and targeted metabolites were evaluated in fruit stored at 25 degrees C for up to 30 d. Flesh firmness was higher in 1-MCP-treated fruit than in untreated fruit during storage; however, shrivelling increased in response to 1-MCP treatment. 1-MCP treatment delayed the changes in colour variables in core tissues but not in peel and cortex tissues, delayed cortex and core browning, and increased shrivelling. 1-MCP-treated fruit had higher sucrose, dehydroascorbic acid, alanine, threonine, and.-aminobutyric acid contents and lower fructose and glucose contents than untreated fruit. The effects of 1-MCP on the physiological and metabolomic responses of fruit were detected using heatmap matrixes and by principal component analysis.
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