White cassava roots (bitter variety), plantain stems ('Afoto' variety) and yam tubers (Dioscorea alata 'Florido') were stored for 28 days after harvest in the laboratory in ambient conditions (28°C). The changes in their nutritional properties (moisture, acidity, protein, lipid, carbohydrate, total sugar, ash and calorifi c value) were studied after different periods of storage. The nutritional changes of the three commodities were described and compared. Cassava and green plantain could be kept for a week without signifi cant deterioration but showed progressive deterioration thereafter, while yam tubers underwent only slight changes over the total 4-week storage period.

The starches of the wild yam species Dioscorea praehensilis, D. hirtifl ora, D. burkilliana, D. togoensis, D. dumetorum and D. bulbifera (tuber and bulbil) were isolated, and their paste viscosity and clarity, iodine binding and syneresis were investigated. Copyright

Starch was extracted from tubers of the wild yam species Dioscorea praehensilis, hirtiflora, burkilliana, bulbifera, minutiflora and dumetorum. The physicochemical and gelatinization properties are reported. Copyright © 2005 John Wiley & Sons, Ltd

This paper describes the proximate composition and mineral contents of seven species of wild yams, Dioscorea praehensilis, burkilliana, hirtiflora, minutiflora, bulbifera, dumetorum and mangenotiana. Copyright © 2005 John Wiley & Sons, Ltd

The contents of the antinutritional factors cyanide, oxalic acid, tannin, sapogenin and alkaloid of species of wild yam were determined. The cyanide contents were well below the FAO/WHO safety limits. Copyright © 2006 John Wiley & Sons, Ltd