Vol. 7 (09) pp. 795-806 DOI: 10.21474/IJAR01/9729

PHYSICOCHEMICAL CHARACTERISTICS AND ANTI-NUTRITIONAL FACTORS OF SOME UNDERUTILIZED TUBERS (DIOSCOREA SPP AND COLEUS ESCULENTUS) GROWN IN CAMEROON.

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  • Department of Biochemistry, Faculty of ScienceP O Box 812, University of Yaound? I, Cameroon.
  • School of Health and Medical Sciences, Catholic University of Cameroon, P OBox 782 Bamenda, Cameroon.
  • Centre for Food and Nutrition Research, Institute of Medical Research and Medicinal Plant Study (IMPM), PO Box 6163 Yaound?, Cameroon.
  • Laboratoire National d?analyses Diagnostiques des Produits et Intrants Agricoles, PO Box : 2082 Messa-Yaound?, Cameroun.
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Abstract

Food insecurity is a threat to most countries in Africa despite the presence of many food commodities. The objective of this work was to determine the nutritional composition and anti-nutritional factors of four underutilized tuber species (Dioscorea spp and Coleus esculentus) in Cameroon. The nutritional composition and contents in anti-nutritional factors wereanalysedusing standard analytical methods. Analysis of Variance (p <0.05) revealed a significant difference in the levels of the parameters analysed in the different varieties of tubers. All the tubers were low in lipids (0.5 - 2.36 %) with traces of soluble sugars (0.24 - 0.40%), some amount of proteins (2.43 -8.95%), crude fibres (2.32 -8.34%), high levels of available carbohydrates (76.40 - 90.19%), starch (76.11 -89.91% dry weight) and energy (363.91 - 385.11 Kcal/100g dry weight). The most abundant minerals were potassium (217 -557 mg), phosphorus (83 - 215 mg), magnesium (29- 264 mg/100g) and Copper (23 -617 ?g/100g dry weight). They had low levels of sodium (<18mg/100g) and iron (18 - 46 ?g/100g dry weight). All the tubers contained the antinutrients:tannins, oxalates, phytates and saponins,below toxic levels. These tubers could therefore contribute nutrients for human nutrition and for the management of some nutritional illnesses.

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How to Cite This Article

R. B. Kuagny Mouafo, M. B. Achu Loh, B. U. Saha Foudjo, G. Kansci, S. Domkem, G. Medoua Nama, E. Nya, P. Kuitekam and E. Fokou. (2019); PHYSICOCHEMICAL CHARACTERISTICS AND ANTI-NUTRITIONAL FACTORS OF SOME UNDERUTILIZED TUBERS (DIOSCOREA SPP AND COLEUS ESCULENTUS) GROWN IN CAMEROON., Int. J. of Adv. Res., 7 (09), 795-806, ISSN 2320-5407. DOI: https://doi.org/10.21474/IJAR01/9729

Corresponding Author

R. B. Kuagny Mouafo
University of Yaoundé I
Creative Commons Attribution 4.0 This work is licensed under a Creative Commons Attribution 4.0 International License.