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    Residual β-carotene and cyanide levels in gari produced from unfermented yellow cassava (Manihot esculenta Crantz) using local processing method

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    U17ArtOsagieResidualNothomDev.pdf (165.4Kb)
    Date
    2017
    Author
    Osagie, V.E.
    Onimawo, I.A.
    Alamu, E.O.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Aims: This study was carried out to determine the level of the retained β-carotene in processing yellow cassava (variety IITA TMS 01/1371 or UMUCASS 38) into gari using local processing method, in addition, it was also carried out to determine the residual cyanide after processing (fermented and unfermented) the yellow-fleshed cassava into gari. Place of Study: Department of Biochemistry, Ambrose Alli University Ekpoma and International Institute for Tropical Agriculture Ibadan. Methodology: High performance liquid Chromatography (HPLC) was used to determine the level of β-carotene in gari produced from fermented and unfermented yellow cassava while the cyanide level was determined by an automated Enzymic method. Results and Discussion: It showed that the gari produced from fermented yellow cassava had a higher level of β-carotene depending on the number of days of fermentation compared with the gari from unfermented yellow cassava. The gari produced from unfermented cassava had the least content of β-carotene (8.076±0.311 ug/g) during the first week of storage compared with those produced from fermented cassava (10.600±0.470 - 20.610±0.098 ug/g). There was a reduction in the β-carotene contents in all groups during the 5week storage period. The rate of loss of β-carotene over a five week period showed that the gari from unfermented cassava had the least rate of loss (0.885 ug/week) compared with the gari from fermented cassava over the same period (0.955-2.447 ug/week). However the level of Hydrogen cyanide (HCN) retained was more in the gari from unfermented yellow cassava (3.160±0.006 mg/100 g) compared with the gari from fermented cassava (0.470±0.046-1.423±0.006 mg/100 g). Conclusion: On the basis of the result, it is suggested that yellow cassava should be fermented before being roasted into gari and adequate method of storage be adopted to reduce loss of β-carotene while in storage.
    http://dx.doi.org/10.9734/jsrr/2017/36428
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5208
    Non-IITA Authors ORCID
    Alamu Emmanuel Oladejihttps://orcid.org/0000-0001-6263-1359
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.9734/jsrr/2017/36428
    Research Themes
    NUTRITION & HUMAN HEALTH
    IITA Subjects
    Cassava; Nutrition
    Agrovoc Terms
    Carotenes; Cyanides; Garri; Cassava; Nigeria
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Journal of Scientific Research & Reports
    Collections
    • Journal and Journal Articles4835
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