Nutrient content of eight African leafy vegetables and their potential contribution to dietary reference intakes

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dc.contributor.author Van Jaarsveld, Paul
dc.contributor.author Faber, Mieke
dc.contributor.author Van Heerden, Ina
dc.contributor.author Wenhold, F.A.M. (Friedeburg Anna Maria)
dc.contributor.author Jansen van Rensburg, Willem
dc.contributor.author Van Averbeke, Wim
dc.date.accessioned 2014-03-07T09:41:26Z
dc.date.available 2014-03-07T09:41:26Z
dc.date.issued 2014-02
dc.description.abstract Nutrient content and potential contribution of one average portion towards nutritional requirements (recommended dietary allowance; RDA) of eight African leafy vegetables (ALVs) was determined. Compared to dark-green leafy vegetables (DGLVs) as sub-group, calcium and magnesium content were similar or considerably higher, vitamin C content was considerably lower, while pigweed had higher potassium content and spider flower similar folate content. All ALVs, except Chinese cabbage, had higher iron content. Black nightshade, pigweed, cowpea and spider flower leaves had higher b-carotene content than DGLVs. For children, pigweed and cowpea leaves emerged as good sources of vitamin A (>75% RDA), followed by spider flower, black nightshade, tsamma melon, Jew’s mallow and pumpkin leaves (50–75% RDA). For iron, pumpkin leaves provided 50–75% RDA. Black nightshade, tsamma melon, pigweed and cowpea leaves contributed 25–50% RDA, with Jew’s mallow, spider flower and Chinese cabbage providing <25% RDA. The ALVs were not a good source of zinc. Most ALVs were nutritionally similar to DGLVs. For most nutrients Chinese cabbage had considerably lower values than the other ALVs. Most of the ALVs can considerably contribute to requirements of vitamin A and, to a lesser extent, iron, both critical nutrients for developing countries. en_US
dc.description.librarian hb2014 en_US
dc.description.uri http://www.elsevier.com/locate/jfca en_US
dc.identifier.citation Van Jaarsveld, P, Faber, M, Van Heerden, I, Wenhold, FAM, Jansen van Rensburg, W & Van Averbeke, W 2014, 'Nutrient content of eight African leafy vegetables and their potential contribution to dietary reference intakes', Journal of Food Composition and Analysis, vol. 33, no.1, pp. 77-84. en_US
dc.identifier.issn 0889-1575 (print)
dc.identifier.issn 1096-0481 (online)
dc.identifier.other 10.1016/j.jfca.2013.11.003
dc.identifier.uri http://hdl.handle.net/2263/37094
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.rights © 2013 Elsevier Inc. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Journal of Food Composition and Analysis. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Food Composition and Analysis, vol. 33, no.1, pp. 77-84, 2014. doi : 10.1016/j.jfca.2013.11.003 en_US
dc.subject Traditional foods en_US
dc.subject Leafy vegetables en_US
dc.subject Underutilized species en_US
dc.subject South Africa en_US
dc.subject Food analysis en_US
dc.subject Food composition en_US
dc.subject Nutrient content en_US
dc.subject Vitamin A en_US
dc.subject Iron en_US
dc.subject Recommended dietary allowance en_US
dc.title Nutrient content of eight African leafy vegetables and their potential contribution to dietary reference intakes en_US
dc.type Postprint Article en_US


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