Journal
SCIENTIA HORTICULTURAE
Volume 141, Issue -, Pages 69-75Publisher
ELSEVIER
DOI: 10.1016/j.scienta.2012.04.021
Keywords
Coriander; Storage; Ethylene; 1-MCP; Chlorophyll; Protein; SOD; CAT; POX
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The postharvest quality response of coriander leaves (Coriandrum sativum L.) to the ethylene action inhibitor, 1-methylcyclopropene (1-MCP) during storage was assessed. Pre-treatment with 1-MCP at 0.5 gm(-3) was applied for 8 h at 15 degrees C. 1-MCP treated as well as control leaves were stored at 5 or 15 degrees C until the marketable quality of leaves was terminated. 1-MCP treatment significantly increased the shelf-life of coriander leaves compared to the untreated control and leaf weight loss with 1-MCP treatment was minimal whether the leaves were stored at 5 degrees C or 15 degrees C. The chlorophyll and protein degradation of detached coriander leaves during storage were significantly retarded by 1-MCP treatment. Ethylene production was significantly increased by 1-MCP treatment compared to the control. This effect was observed whether leaves stored at 5 degrees C or 15 degrees C. however it was very clear when leaves were stored at 15 degrees C. 1-MCP treatment also significantly retarded the decrease of volatile oil percentage in coriander leaves during storage compared to the control. A significant increase in SOD, CAT and POX enzyme activities was observed in 1-MCP treated leaves stored at 5 or 15 degrees C compared to the control. 1-MCP may play a role in the retention of harvest antioxidant levels of coriander leaves during storage and provided evidence to support the hypothesis that the beneficial effects of 1-MCP on leaf senescence are not exclusively limited to its effects on ethylene, but also include effects on antioxidant enzyme activity. (C) 2012 Elsevier B.V. All rights reserved.
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