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African Crop Science Journal
African Crop Science Society
ISSN: 1021-9730
EISSN: 1021-9730
Vol. 24, No. s1, 2016, pp. 89-94
Bioline Code: cs16017
Full paper language: English
Document type: Research Article
Document available free of charge

African Crop Science Journal, Vol. 24, No. s1, 2016, pp. 89-94

 fr
Abong’, G.O.; Shibairo, S.I.; Okoth, M.W.; Lamuka, P.O.; Katama, C.K. & Ouma, J.

Résumé

Le chips de manioc ( Manihot esculenta check for this species in other resources Crantz) deviant de plus en plus populaire dans les zones urbaines du Kenya. Les chips son generalemant consommes sous forme de gouter en dehors de la maison et au mileu de deux repas. Neanmoins, tres peu d’informations sont disponibles sur la qualite et l’hygienne des chips vendus au Kenya. Cette etude visait a faire le point de la qualite et de l’hygienne en terme de quantite de cyanure du manioc dans les chips commercializes dans les villes de Mombasa et Nairobi au Kenya. Des echantillons de six marques de chips commercializes ont ete collectes chez des vendeurs et supermarches, et ont ete evalues pour leur taux d’humidite, d’huile, de cyanure et de chlorure de sodium. La couleur et la texture ont ete aussi evaluee. Des differences significatives ont ete observes dans les taux d’humidite (P=0,0001), d’huile (P<0,0001) et de cyanure (P=0,026) d’une marque a une autre. Les taux de chlorure de sodium n’etait pas significativement differents (P>0,07). les taux d’humidite varient de 4,3 a 6,77%, ceux d’huile de 19,17 a 30,68%; tandis que ceux de cyanure et de sel varient respectivement de 13,5 a 32,24 ppb et 2,3 a 2,7%. Aucune difference significative n’etait observee dans la texture (P>0.57), ni dans l’inde de teinte jaune (b*) (P>0.137). D’autre part, des differences significatives ont ete observes au niveau des couleurs. Les taux d’humidite et de cyanure depassaient les limites statutaires; d’ou de potentiel dangers pour la sante des populations.

Mots Clés
Cyanure; Manihot esculenta; humidite; huile

 
 en QUALITY AND SAFETY CHARACTERISTICS OF CASSAVA CRISPS SOLD IN URBAN KENYA
Abong’, G.O.; Shibairo, S.I.; Okoth, M.W.; Lamuka, P.O.; Katama, C.K. & Ouma, J.

Abstract

Cassava ( Manihot esculenta check for this species in other resources Crantz) crisps are increasingly popular in Kenya’s urban areas. Crisps are popularly consumed as snacks outside homes and in-between meals. However, limited information on the quality and safety of the crisps is available in the country. This study sought to characterise the quality and safety in terms of cyanide levels of cassava crisps commercially traded in Mombasa and Nairobi areas in Kenya. Samples of six commercially traded crisp brands were collected in duplicates, from venders and supermarkets; and evaluated for moisture, oil, cyanide and sodium chloride contents. Product colour and texture were also evaluated. There were significant differences among brand contents of moisture (P=0.0001), oil (P<0.0001) and cyanide content (P=0.026). Levels of sodium chloride were, however, insignificant (P>0.07). Moisture content ranged from 4.3 to 6.77%, oil content 19.17 to 30.68%; and cyanide and salt contents ranged 13.5 to 32.24 ppb and 2.3 to 2.7%, respectively. There were no significant differences (P>0.57) in the texture, as well as in the yellowness (b*) parameter (P>0.137). On the other hand, significant differences were observed on colour. Moisture and cyanide levels exceeded the statutory limits.

Keywords
Cyanide; Manihot esculenta; moisture; oil

 
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