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Quality comparison between organic- and conventional-grown cauliflowers (Brassica oleracea L., subsp. botrytis): results from the third year of VALORBIO project

Author:
Migliori, C., Lo Scalzo, R., Di Cesare, L.F., Campanelli, G., Ferrari, V.
Source:
Acta horticulturae 2013 no.1005 pp. 453-461
ISSN:
0567-7572
Subject:
Brassica oleracea, antioxidant activity, antioxidants, ascorbic acid, carotenoids, cauliflower, cultivars, glucosinolates, phytochemicals, polyphenols, rain, sulfur
Abstract:
The presence of healthy phytochemicals was monitored in four cauliflower cultivars ('Emeraude', early/late 'Velox' and 'Jesino') by comparing conventional and organic agrosystems. The amount of sulphur volatiles, glucosinolates, ascorbic acid, total polyphenols, total carotenoids and antioxidant capacity were determined. The differences between the two systems of cultivation were discussed by comparing results of 2010-2011 and 2012 cropping cycles. We noted a general increase of volatile sulphurs and of the most bioactive glucosinolates in organic samples in 2012 and a general decrease of antioxidant compounds with the exception of polyphenols in both organic and conventional systems in 2012, due to the different environmental condi┬Čtions, especially regarding a rain-water stress.
Agid:
324389