EFFECTS OF 1-METHYLCYCLOPROPENE TREATMENT ON THE SHELF-LIFE QUALITY OF STRAWBERRY CV. JINGNONG 1^ST

The ethylene action inhibitor 1-methylcyclopropene (1-MCP) reduces the rate of ripening of climacteric fruit including apple, pear and tomato.
Several experiments using 1-MCP on non-climacteric fruit showed the same trend.
Strawberries are non-climacteric fruit being high in value and highly perishable. ‘Jingnong 1^st’ strawberry fruit were treated with 500 nl/L and 1000 nl/L 1-MCP. After 20 d at -1°C, fruit were placed on shelf at 4°C. The effect of 1-MCP on the rot rate and activity of antioxidant enzymes of fruits in shelf life was examined.
Protein content of 1-MCP treated fruit increased and rot rate decreased 60% at the 8^th day of shelf life.
Superoxide dismutase (SOD) and catalase (CAT) activity of 1-MCP treated fruit were higher than control (not treated with 1-MCP), and were highest at 4^th day and 3^rd day of shelf life in fruit treated by 500 nl/L and 1000 nl/L 1-MCP, respectively.
Asorbate peroxidase (APX) activities were significant higher than control and highest at 2^nd day and 6^th day in fruits treated with 500 nl/L and 1000 nl/L 1-MCP, respectively.
Maintenance of these enzyme activities by 1-MCP during shelf life may potentially help in detoxification of active oxygen species generated during catabolic activities and maintain the quality of fruit longer.

XXVII International Horticultural Congress – IHC2006: International Symposium on The Role of Postharvest Technology in the Globalisation of Horticulture

Lan Shi, Lin Shen, Mengmeng Yu, Lizhe Ouyang, Bei Fan, Jiping Sheng

strawberry, decay, SOD, CAT, storage, quality control

https://doi.org/10.17660/ActaHortic.2008.768.40