Authors: Filippo Rossi Francesco Godani Terenzio Bertuzzi Marco Trevisan Federico Ferrari Sergio Gatti
Publish Date: 2008/07/05
Volume: 47, Issue: 5, Pages: 266-
Abstract
Organic farming is a production technique that imposes major restrictions on the use of fertilizers pesticides feed additives and veterinary drugs and for this reason consumers perceive organic foods to be healthier The content of healthpromoting molecules such as ascorbic acid βcarotene lycopene and salicylic acid are important aspects of the nutritional quality of organic foodsMoisture was determined by drying crude protein by the Kjeldhal method and ashes by incineration at 550°C Ergosterol ascorbic acid βcarotene lycopene and salicylic acid were determined by HPLC The levels of heavy metals were measured by atomic absorption spectroscopyCompared to crops grown using conventional and IPM methods organic tomatoes contained more salicylic acid but less vitamin C and lycopene Organic tomatoes had higher Cd and Pb levels but a lower Cu content Organic fruits had a slightly higher protein content than conventionally cultivated fruits but the difference was minimal and consequently the nutritive significance was poorFarming techniques may have an impact on the quality of tomatoes Their higher salicylate content supports the notion that organic foodstuffs are more wholesome However the lower lycopene and ascorbic acid levels of organic tomatoes are not to be regarded as positive No residues of pesticides and ergosterol were detected
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