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    Cyanogenic potential in food crops and its implication in cassava ( Manihot esculenta Crantz) production

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    Date
    2001
    Author
    Fokunang, C.N.
    Tomkins, P.T.
    Dixon, Alfred G.O.
    Tembe, E.A.
    Salwa, B.
    Nukenine, E.N.
    Horan, I.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract/Description
    Cyanide a by-product from cyanogenic glucosides is toxic to humans and most living organisms due to its ability of binding to metals such as iron, zinc and copper functional groups of the ligands of most bio enzymes. The cyanide inhibits the reduction of oxygen in the respiratory electron transfer system, the inhibition of plastocyanin reduction in photosynthesis and catalase activity. The magnitude of cyanide metabolism varies greatly between different plant species. Although most plant species produce small amount of cyanide associated with ethylene production, between 3-12000 plant species produce sufficient amounts of cyanogenic compounds that they may function as translocatable forms of reduced nitrogen or as chemical defense molecules against pests and diseases. This paper discusses the cyanogenic potential (ability to produce hydrogen cyanide), in food crops, the importance of cassava as a cyanogenic food crop, cyanide toxicity, metabolism, the enzyme activities of linamarases ( -glucosidase), hydroxyl nitrile lyase, and cyanide detoxification processes.
    http://dx.doi.org/10.3923/pjbs.2001.926.930
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4347
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.3923/pjbs.2001.926.930
    IITA Subjects
    Cassava
    Agrovoc Terms
    Cassava; Cyanogenic Glucosides; Manihot Escultenta; Byproducts
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Pakistan Journal of Biological Sciences
    Collections
    • Journal and Journal Articles4835
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