Abstract

TORRES-RODRIGUEZ, Eugenio; ALEAGA-ALVAREZ, Yunier; HERMOSILLA-ESPINOSA, Robinson  and  RAMOS-ESCALONA, Melquiades. Determination of cyanide in flour and strach of cassava (Manihot esculenta), of variety censa 64-7329. Rev Cub Quim [online]. 2022, vol.34, n.3, pp. 462-476.  Epub Oct 24, 2022. ISSN 2224-5421.

The growing use of cassava (Manihot esculenta) and its derivatives in the food industry makes it necessary to know the amount of cyanide that this vegetable can contribute to shaped foods. Cassava flour and starch of the CENSA 64-7329 variety, suitable for human consumption, were prepared. In fresh cassava, flour and starch, the moisture content was determined to know the amount of water that is eliminated after processing, in which cyanide can be leached. The protein content was determined by the Kjeldahl method and allowed choosing the cyanide quantification method without the interference of other nitrogenous compounds. Cyanide quantification was performed by two procedures: alkaline titration method with AgNO3 and the spectrophotometric method using ninhydrin as color developer. The amount of cyanide detected by both methods is below the limits established by the FAO-WHO.

Keywords : Manihot esculenta; flour; starch; cyanide content.

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