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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/22891


Title: Damage Reduces Helf-Life of Sweetpotato during Marketing
Issue Date: 31-Dec-2001
Publisher: African Crop Science Society
Citation: African Crop Science Journal (ISSN: 1021-9730) Vol 9 Num 1
Abstract: African Crop Science Journal, Vol. 9, No. 1, March 2001, pp. 301-307 Damage Reduces Helf-Life of Sweetpotato during Marketing K. Mtunda, D. Chilosa, E. Rwiza, M. Kilima, H. Kiozya, R. Munisi, R. Kapinga and D. Rees Code Number: cs01061 ABSTRACT: Although sweetpotato is primarily grown for home consumption, marketing is becoming increasingly important, and in this case, short shelf-life of the roots is a major constraint. An assessment of the levels of damage of sweetpotatoes when they arrive at urban markets indicated that between 49% and 93% roots exhibited some form of damage. The major types of damage noted were breakages, cuts, infestation by weevils (Cylas spp.), rotting and superficial scuffing. All forms of damage, except superficial scuffing, lead to a shortened shelf-life due to both increased fresh weight loss and rotting. Superficial scuffing increased the rate of rotting but not of weight loss. It was estimated, based on the six cases considered, that the damage resulted in a reduction of shelf-life of between 23% and 47%. KEY WORDS: Ipomoea batatus, post-harvest losses, Tanzania RÉSUM&Eacute: Bien que la patate douce est cultivée principalement pour la consommation familiale, la commercilisation devient de plus en plus importante et pour cela la période après recolte devient une contriante majeure pour les racines tubereuses. Une évaluation du niveau de dégats des patates douces arrivées au marchés urbains a montré que les tubercules exposent quelques formes de damages entre 49 et 93%. Les principaux dégats observés sont: les casses, les entailles et des infestations par des charançons (Cylas spp.), la pourriture et des érafles superificielles. Toutes les formes de dégats, à part les érafles superificielles, conduisent à la réduction de la période après recolte suite à l' augmentation de la perte du poids frais et de la pourriture. Les éraffles superificielles augmentent le taux de pourriture mais pas la perte de poids. Il a été estimé sur base de ces six cas étudiés que les dégats ont causé une réduction de la période après recolte entre 23 et 47%. Mots Clés: Ipomoea batatus, pertes après recolte, Tanzanie Copyright 2001, African Crop Science Society
URI: http://hdl.handle.net/1807/22891
Other Identifiers: http://www.bioline.org.br/abstract?id=cs01061
Rights: Copyright 2001 African Crop Science Society
Appears in Collections:Bioline International Legacy Collection

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