Publication:
Indigenous leafy vegetables of Eastern Africa — A source of extraordinary secondary plant metabolites

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dc.contributor.authorNeugart, Susanne
dc.contributor.authorBaldermann, Susanne
dc.contributor.authorNgwene, Benard
dc.contributor.authorWesonga, John
dc.contributor.authorSchreiner, Monika
dc.date.accessioned2024-06-25T08:04:26Z
dc.date.issued2017-10-01
dc.description.abstractIndigenous African leafy vegetables vary enormously in their secondary plant metabolites whereat genus and the species have a great impact. In African nightshade (Solanum scabrum), spiderplant (Cleome gynandra), amaranth (Amaranthus cruentus), cowpea (Vigna unguiculata), Ethiopian kale (Brassica carinata) and common kale (Brassica oleracea) the specific secondary metabolite profile was elucidated and gained detailed data about carotenoids, chlorophylls, glucosinolates and phenolic compounds all having an appropriate contribution to health beneficial properties of indigenous African leafy vegetables. Exemplarily, various quercetin glycosides such as quercetin-3-rutinoside occur in high concentrations in African nightshade, spiderplant, and amaranth between ~1400–3300μg/g DW. Additionally the extraordinary hydroxycinnamic acid derivatives such as glucaric isomers and isocitric acid isomers are found especially in amaranth (up to ~1250μg/g DW) and spiderplant (up to 120μg/g DW). Carotenoids concentrations are high in amaranth (up to101.7μg/g DW) and spiderplants (up to 64.7μg/g DW) showing high concentrations of β-carotene, the pro-vitamin A. In contrast to the ubiquitous occurring phenolics and carotenoids, glucosinolates are only present in the Brassicales species Ethiopian kale, common kale and spiderplant characterized by diverse glucosinolate profiles. Generally, the consumption of a variety of these indigenous African leafy vegetables can be recommended to contribute to different benefits such as antioxidant activity, increase pro-vitamin A and anticancerogenic compounds in a healthy diet.
dc.description.sponsorshipThrough Max Rubber - Institute
dc.identifier.citationNeugart, S., Baldermann, S., Ngwene, B., Wesonga, J., & Schreiner, M. (2017). Indigenous leafy vegetables of Eastern Africa—A source of extraordinary secondary plant metabolites. Food Research International, 100, 411-422.
dc.identifier.issn0963-9969
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0963996917300789?via%3Dihub
dc.identifier.urihttps://repository.nrf.go.ke/handle/123456789/939
dc.language.isoen
dc.publisherElsevier
dc.subjectarotenoids
dc.subjectFlavonoid glycosides
dc.subjectGlucosinolates
dc.subjectHydroxycinnamic acids
dc.subjectIndigenous African leafy vegetables.
dc.titleIndigenous leafy vegetables of Eastern Africa — A source of extraordinary secondary plant metabolites
dc.typeArticle
dspace.entity.typePublication

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