Variation in Toxicity and Physicochemical Parameters of Cassava Pulp (Manihot esculenta) during Storage
International Journal of Biochemistry Research & Review,
Background: A staple for about 800 million people in tropical countries, cassava contains a high content of hydrocyanic acid making it toxic.
Objective: This study was proposed to test the conservation effectiveness on tuber toxicity. Materials and Methods: Tests were carried out on the varieties commonly known as Bonoua and Yacé. The conservation parameters studied were: the level of hydrocyanic acid, moisture content and hardness. The cassava tubers were stored at room temperature. The samples for analysis were taken on the pulp every 24 hours.
Results: Results showed that hydrocyanic acid levels reached their minimum levels between 96 and 120 hours of storage with 5.87 ± 0.46 and 5.66 ± 0.50 mg/kg in Bonoua, then 9.53 ± 0.78 and 9.85 ± 0.93 mg/kg in IAC. Water levels are positively correlated with those of hydrocyanic acid in both cassava types. Proteins reach reveal in their maximum concentrations between 48 and 72 hours of storage (respectively to then drop. The ash and fat contents as well as the total carbohydrate contents generally decrease during storage. However, an increase is observed from 120 hours of storage, at the level of carbohydrate concentrations.
Conclusion: For a non-toxic cassava pulp, a storage period of at least 48 hours at the Bonoua and 96 hours at the IAC would be advisable with however a lower biochemical quality.
- Manihot esculenta
- hydrocyanic acid
- biochemical quality
How to Cite
FIRCA. La Filière manioc. Publication, Magazine d’information du Fonds Interprofessionnel Pour la recherche et le Conseil Agricole. 2018;10.
Assanvo JB. Study of cassava microflora for the production of Attiéké Adjoukrou (Nouvel Ousrou, Orbaff and Bouboury). DEA in Food Science, 39 p. University of Cocody (Ivory Coast); 2000.
Justin Kouakou, Samuel Nanga Nanga, Catherine Plagne-Ismail, Aman Mazalo Pali, Kukom Edoh Ognakossan. Cassava production and processing, Wageningen (Netherlands), Engineers Without Borders Cameroon (ISF Cameroon) & Technical Center of agricultural and rural cooperation (CTA), coll. “Pro-Agro”. 2015;40.
Soulé BG, Aboudou F, Gansari S, Tassou M, Yallou JD. Analysis of the structure and dynamics of the cassava value chain in Benin, Cotonou, Regional Analysis and Social Expertise Laboratory (LARES). 2013;75.
Boka Yaba Tatiana. Effet de différents types de Fertilisants sur la Croissance du manioc. Mémoire, Faculté des Sciences de la nature de Nangui Abrogoua. zonen, Wageningen. 2016;3.
Lauwerys RR. Industrial toxicology and occupational poisoning. 4th edition. Masson, Paris. 1999;961.
Lépengue A, Mouaragadja I, Dick E, M’batchi B, Aké S. Improved shelf life of plantains at room temperatures. International Journal Biology Chemical Science. 2010;4(3):730-737.
BIPEA. Recueil des methodes d’analyse des communautes europeennes. 1976;160.
Lépengue A, Mouaragadja I, Dick E, M’batchi B, Aké S. Amélioration de la durée de conservation des bananes plantains aux températures ambiantes. Int. J. Biol. Chem. Sci. 2010;4(3):730-737. lipides. vol. 4. n° 5, 389-392
AOAC. Official methods of analysisn, (13ed). Association of official Analytical Chemist: Washington, DC; 2000.
FAO. FAOSTAT statistic database agriculture. Roma: FAO Food and Agriculture Organization ; 2000.
Abbor-Egbe T, Mbone IL. The effect of processing techniques to reduce cyanogen levels during the production of certain cassava foods. J. Food Compound Anal. 2006;19:354-363.
Lognay G, Gueye MT, Diallo Y, Sakho M, Darboux PG, Kane Amadou BJP. Nutritional importance of cassava and prospects for staple food in Senegal. Bibliographical summary, in Base (Biotechnique Agronomie Société et Environnement), Presses Agronomique de Gembloux. 2013;15.
Karunaratne AM, Ethugala CV. Health status, physicochemical changes and taste of bananas treated with acetic acid or vinegar. Fruits. 2002;57(1): 11-18.
Heller R, Esnault R, Lance C. Plant physiology. Development (6th edition of the abstract). Editions Dunod: Paris. 2006;366.
Machin D, Nyvold S. (Eds.). Roots tubers, plantains and bananas in animal feeding. Proceedings of the FAO, Expert Consultation held in CIAT, Cali, Colombia. 1991;21.
Assa R. Diagnosis of the peasant coconut grove of the Ivorian coast: Physicochemical, microbiological and organoleptic study of water and almonds from the fruits of four cultivars of the coconut palm (Cocos nucifera L.) according to the stages of maturity. Single Doctorate Thesis from the University of Cocody (Ivory Coast). 2007;188.
Pettigrew W. Potassium influences on yield and quality production for maize, wheat, soybean and cotton. Physiology Plant. 2008;133:670-681.
Pech O, May A, Muller H, Vieth A, Solte M, Ell C. Journal of experimental botany. 2002;53(367):201-206.
Abstract View: 100 times
PDF Download: 34 times