FUW TRENDS IN SCIENCE & TECHNOLOGY JOURNAL

(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170

FUW TRENDS IN SCIENCE & TECHNOLOGY JOURNAL

COMPARATIVE PROXIMATE AND MINERAL ANALYSES OF Dioscorea rotundata AND Dioscorea bulbifera GROWN IN MAKURDI, BENUE STATE – NIGERIA
Pages: 175-178
S. M.Tongu, C. U. Agubuzu and M. S.Iorungwa


keywords: Dioscoreabulbifera, Dioscorearotundata, mineral composition, proximate composition

Abstract

This study compared the nutritional values of Dioscorearotundata and Dioscoreabulbifera grown in Agboughul village nearby Makurdi, Benue State, Nigeria. Samples of the Dioscoreaspecies were collected and analyzed for their proximate and mineral compositions. The results of analyses revealed thatDioscoreabulbiferawas richer in protein (3.79%), ash content (2.60%), crude fibre (1.75%) and moisture content (60.13%) than Dioscorearotundata while the Dioscorearotundata was richer in crude fat (1.80 %) and carbohydrate (89.75%) than Dioscoreabulbifera. In terms of mineral composition in mg/100g, Dioscoreabulbifera was richer than Dioscorearotundata in macro minerals such assodium (100.5), potassium (975.0), calcium (103.0), and magnesium (65.0) while the values of micro elements; zinc (1.5), iron (5.0) and manganese (0.6) were all higher inDioscorearotundata but the value of copper was the same (0.2) in both species. The values of metabolizable energy in kJ/100g were 1605.97 and 1646.92 for Dioscoreabulbifera and Dioscorearotundata, respectively. The adoption of Dioscoreabulbifera as staple food is recommended.

References

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