Variations in some quality attributes of air-dried fruit of two apple cultivars from Iran
2012
Hassanpouraghdam, M.B., University of Maragheh, Maragheh (Iran Islamic Republic). Faculty of Agriculture, Department of Horticultural Sciences | Mehrabani, L.V., Azarbaijan Shahid Madani University, Tabriz (Iran Islamic Republic). Faculty of Agriculture, Department of Horticultural Sciences | Dadpour, M.R., University of Tabriz, Tabriz (Iran Islamic Republic). Faculty of Agriculture, Department of Horticultural Sciences
Apple is known as an available natural source of phenolic compounds that have a great effect on human health. Quantitative analyses of Zonouz and Gala apple phenolic compounds were carried out by HPLC and colorimetric methods during commercial harvest time. For this, fruits were harvested, separated into peel and pulp, and air-dried for measurements of pH, total soluble solids (TSS) and total acidity (TA) during their development. The results showed no differences between two apple cultivars regarding pH. Gala had higher TSS content compared to Zonouz. Also, colorimetric methods revealed that the highest amount of total phenolics, anthocyanins, proanthocyanidins and flavonoid compounds were recorded in Gala and Zonouz apple peel, respectively. By contrast, Zonouz pulp contained higher amounts of these phenolic compounds than Gala pulp. HPLC analysis showed that the higher quantities of flavanols were in Zonouz fruit (peel and pulp), due to much higher amounts of epicatachin in Zonouz compared with Gala.
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