Effect of 1-MCP treatment on apple biochemical content and physiological disorders
2007
Moor, U. | Karp, K. | Põldma, P. | Starast, M.
The research was conducted with the apple (<i>Malus domestica</i>) cultivars Krameri Tuviõun and Talvenauding at the Estonian Agricultural University during 2003–2005. The aim was to study the effect of 1-methylcyclopropene (1-MCP) treatment (1 ppm, at room temperature, 24 h) on the biochemical content and physiological disorders of apples and on external quality after 4 months of storage. The apples were stored in a normal atmosphere at 2–5°C and 80–85% RH. In the first storage season 1-MCP treatment did not improve apple quality in general; only the peel background colour of treated apples remained greener. In the second storage season 1-MCP treatment influenced the biochemical content of the apples and improved apple quality: treated fruits were firmer (increase from 4.7 kg/cm <sup>2</sup> to 8.1 kg/cm <sup>2</sup>) and contained more vitamin C; also, the SSC decreased and the loss of titratable acids was delayed. Consequently fruit spoilage decreased by 30%.
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