Nutritional and organoleptic characterization of nectarine and peach of organic and integrated production systems in Lleida (Spain)
2012
Huanca, W.S. | Casero, T. | Gatius, F. | Soria, Y.
Peaches and nectarines (Prunus persica (L.) Batsch) of ‘Rich Lady’ and ‘Big Top’ cultivars, respectively, grown according to the organic (OP) and integrated production (IP) systems, under similar soil and climate conditions in Lleida (Spain), were evaluated at harvest and after 7, 14 and 21 days of conventional cold storage at 0°C plus 3 days at 20°C, respectively. Ethylene production, total ascorbic acid (AA), weight, diameter, colour, firmness, titratable acidity (TA) and soluble solids content (SSC) were determined. Fruits mineral content was also determined at harvest. For both cultivars the ethylene production was lower in OP fruits. AA was always higher in IP than in OP nectarine fruits except for those measured after 7 days of storage. Regarding peaches, although there were no significant differences between the production systems, IP fruits presented a gradual reduction of AA with increasing days of storage whereas OP fruits maintained the AA content during the 21 days of storage. IP nectarines presented a higher weight and diameter but lower firmness, SSC and TA values than those reached by OP fruits. In peaches, no difference in weight, diameter and SSC were found between both production systems but firmness and TA were higher in IP than OP fruits, which presented a more coloured peel.
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