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Value and characterization of Cabo Verde Leguminosae plants as sources of new foods
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Orientador(es)
Resumo(s)
Legume species are important food sources to prevent starvation, under-, and malnutrition;
they also play a crucial role in sustainable agriculture in the tropical dry islands of Cabo
Verde. In order to improve the knowledge of the heritage of plant genetic resources in Cabo
Verde, namely of the Leguminosae family, this study had three main goals: i) to provide a
checklist of Leguminosae taxa used as food; ii) to investigate which legume species are
consumed and traded in local markets and to compare species for their chemical composition
and nutritional value; and iii) to discuss aspects concerning the agronomic value, sustainable
use of legumes, and their potential contribution to food security in this archipelago. Results
revealed that 15 Leguminosae species are used as food and all but one is cultivated. Five of
these species are widely consumed/traded in local markets, namely: Cajanus cajan, Lablab
purpureus, Phaseolus lunatus, Phaseolus vulgaris, and Vigna unguiculata. Regarding the
nutritional value, Lablab purpureus, Phaseolus vulgaris and Vigna unguiculata present about
23% of protein. Cajanus cajan and Lablab purpureus showed the highest antioxidant
capacities, fibre and phenolic contents; Phaseolus vulgaris showed the highest ash and
moisture contents. The highest mineral content was found for the following elements and
species: Cu, in Cajanus cajan; Mg, and Mn, in Lablab purpureus; K, Ca, P, and Fe in
Phaseolus vulgaris; and Mg, S, and Zn in Vigna unguiculata. The role of these species as
sources of nutrients for food security is highlighted, and the native ones (Lablab purpureus
and Vigna unguiculata) stand-out as particularly well-adapted to the adverse climate of these
islands. The present study allowed concluding that the conservation and sustainable use of
these plant genetic resources can contribute to the reduction of hunger and poverty, thus
meeting some challenges of the Sustainable Development Goals (zero hunger, good health
and well-being and climatic action).
Descrição
Palavras-chave
Oceanic Islands Middle Income Countries diversity of legume species phenolic contents mineral content nutritional composition