Variation in bioactive content in broccoli (Brassica oleracea var. italica) grown under conventional and organic production systems

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dc.contributor.authorValverde, Juan*
dc.contributor.authorReilly, Kim*
dc.contributor.authorVillacreces, Salvador*
dc.contributor.authorGaffney, Michael*
dc.contributor.authorGrant, Jim*
dc.contributor.authorBrunton, Nigel*
dc.contributor.sponsorDepartment of Agriculture, Food and the Marine, Ireland
dc.contributor.sponsorGrantNumber06/NITAFRC6
dc.date.accessioned2016-04-22T13:30:13Z
dc.date.available2016-04-22T13:30:13Z
dc.date.issued30/07/2014
dc.descriptionThis is the accepted version of the following article: Valverde, J., Reilly, K., Villacreces, S., Gaffney, M., Grant, J. and Brunton, N. (2015), Variation in bioactive content in broccoli (Brassica oleracea var. italica) grown under conventional and organic production systems. J. Sci. Food Agric., 95: 1163–1171, which has been published in final form at http://dx.doi.org/10.1002/jsfa.6804
dc.descriptionpeer-revieweden_GB
dc.description.abstractBACKGROUND Broccoli and other cruciferous vegetables contain a number of bioactive compounds, in particular glucosinolates and polyphenols, which are proposed to confer health benefits to the consumer. Demand for organic crops is at least partly based on a perception that organic crops may contain higher levels of bioactive compounds; however, insufficient research has been carried out to either support or refute such claims. RESULTS In this study we examined the effect of conventional, organic, and mixed cultivation practices on the content of total phenolics, total flavonoids, and total and individual glucosinolates in two varieties of broccoli grown over 2 years in a split-plot factorial systems comparison trial. Levels of total phenolics and total flavonoids showed a significant year-on-year variation but were not significantly different between organic and conventional production systems. In contrast, levels of the indolyl glucosinolates glucobrassicin and neoglucobrassicin were significantly higher (P < 0.05) under fully organic compared to fully conventional management. CONCLUSION Organic cultivation practices resulted in significantly higher levels of glucobrassicin and neoglucobrassicin in broccoli florets; however, other investigated compounds were unaffected by production practices.en_GB
dc.description.sponsorshipThe Irish Department of Agriculture, Fisheries and Food (FIRM 06/NITAFRC6) is gratefully acknowledged for financial supporten_GB
dc.identifier.citationValverde, J., Reilly, K., Villacreces, S., Gaffney, M., Grant, J. and Brunton, N. (2015), Variation in bioactive content in broccoli (Brassica oleracea var. italica) grown under conventional and organic production systems. J. Sci. Food Agric., 95: 1163–1171. doi: 10.1002/jsfa.6804en_GB
dc.identifier.doihttp://dx.doi.org/10.1002/jsfa.6804
dc.identifier.rmisNFBY-0106-5864
dc.identifier.urihttp://hdl.handle.net/11019/986
dc.language.isoenen_GB
dc.publisherWiley on behalf of Society of Chemical Industryen_GB
dc.relation.ispartofseriesJournal of the Science of Food and Agriculure;vol 95
dc.subjectBrassica oleraceaen_GB
dc.subjectorganic agricultureen_GB
dc.subjectglucosinolatesen_GB
dc.subjectneoglucobrassicinen_GB
dc.subjectglucobrassicinen_GB
dc.subjectphenolic compoundsen_GB
dc.titleVariation in bioactive content in broccoli (Brassica oleracea var. italica) grown under conventional and organic production systemsen_GB
dc.typeArticleen_GB
dspace.entity.typePublication
refterms.dateFOA2018-01-12T08:21:39Z
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