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Open Access Research

Dietary fiber, organic acids and minerals in selected wild edible fruits of Mozambique

Telma Magaia13*, Amália Uamusse2, Ingegerd Sjöholm3 and Kerstin Skog3

Author Affiliations

1 Department of Biological Science, Science Faculty, Eduardo Mondlane University, PO Box 257, Maputo, Mozambique

2 Department of Chemistry, Science Faculty, Eduardo Mondlane University, PO Box 257, Maputo, Mozambique

3 Department of Food Technology, Engineering and Nutrition, Lund University, PO Box 124, Lund, SE-221 00, Sweden

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SpringerPlus 2013, 2:88  doi:10.1186/2193-1801-2-88

Published: 8 March 2013

Abstract

The harvesting, utilization and marketing of indigenous fruits and nuts have been central to the livelihoods of the majority of rural communities in African countries. In this study we report on the content of dietary fiber, minerals and selected organic acids in the pulps and kernels of the wild fruits most commonly consumed in southern Mozambique. The content of soluble fiber in the pulps ranged from 4.3 to 65.6 g/100 g and insoluble fiber from 2.6 to 45.8 g/100 g. In the kernels the content of soluble fiber ranged from 8.4 to 42.6 g/100 g and insoluble fiber from 14.7 to 20.9 g/100 g. Citric acid was found in all fruits up to 25.7 g/kg. The kernels of Adansonia digitata and Sclerocarya birrea were shown to be rich in calcium, iron, magnesium and zinc. The data may be useful in selecting wild fruit species appropriate for incorporation into diets.

Keywords:
Wild fruits; Minerals; Citric acid; Dietary fiber; Daily intake