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Cyanogenic Potential of Roasted Cassava (Manihot esculenta Crantz) roots Rale from Inhambane Province, Mozambique

Author

Listed:
  • L. Tivana

    (Food Technology, Lund University, Chemical Center, SE-221 00 Lund, Sweden
    Chemical Engineering Department, Eduardo Mondlane University, Maputo, Mozambique)

  • J. Da Cruz Francisco

    (Chemical Engineering Department, Eduardo Mondlane University, Maputo, Mozambique)

  • B. Bergenståhl

    (Food Technology, Lund University, Chemical Center, SE-221 00 Lund, Sweden)

  • P. Dejmek

    (Food Technology, Lund University, Chemical Center, SE-221 00 Lund, Sweden)

Abstract

Roasted cassava roots flour is part of a common meal in Africa, it is known as rale in Mozambique. Fifty six samples of rale were collected from homes and markets in Inhambane Province, Mozambique, for cyanogenic potential (CNp) analyses. The names of cassava varieties used for preparing the rale samples could be determined in the home-collected samples, three varieties were recorded. Xinhembwe variety gave rale samples with 30 ± 8 mg CNp/kg (mean + standard error), Precoce de angola with 43 ± 11 mg CNp/kg and Rungo sabonete with 58 ± 22 mg CNp/kg dry weight. The mean cyanogenic value for all the 56 samples collected was 41 ± 16 mg CNp/kg. Cyanogenic potentials in all the rale samples were above 10 mg HCN/kg, the value regarded by the Codex Alimentarius Commission of the FAO/WHO as safe.

Suggested Citation

  • L. Tivana & J. Da Cruz Francisco & B. Bergenståhl & P. Dejmek, 2009. "Cyanogenic Potential of Roasted Cassava (Manihot esculenta Crantz) roots Rale from Inhambane Province, Mozambique," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 27(SpecialIs), pages 375-378.
    • Handle: RePEc:caa:jnlcjf:v:27:y:2009:i:specialissue1:id:1102-cjfs
    DOI: 10.17221/1102-CJFS
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