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    Calibration development for nutritional evaluation of Yam (Dioscorea sp.) using Near-Infrared Reflectance Spectrophotometry (NIRS)

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    U19ArtAlamuCalibrationInthomNodev.pdf (1.044Mb)
    Date
    2019-01-08
    Author
    Alamu, E.O.
    Adesokan, M.
    Maziya-Dixon, B.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    The aim of yam breeders is to produce many hybrids, which can form the basis of selecting quality nutritional traits and other characteristics using certain agronomic criteria. Chemical methods are employed to determine the main constituents of yam, which are time-consuming, expensive, and involve sample destruction. However, the constraints of lengthy analysis time and the cost needed to analyze thousands of these genotypes are major constraints to yam breeding in Nigeria. This study was undertaken to develop and validate calibration equations on the Near-Infrared Reflectance Spectrophotometer (NIRS) for determining chemical compositions of selected yam genotypes. Equations developed for moisture, ash, protein, crude fiber, and tannin showed high coefficients of determination (R2) for the calibration curve (0.87, 0.84, 0.83, 0.80, and 0.89, respectively) and high to medium coefficients of determination in cross-validation (0.80, 0.68, 0.69, 0.68, and 0.50). The standard errors of calibration (SEC) and the standard errors in cross-validation (SECV) were low for most constituents. A total of 360 ascensions of yam flour were predicted for selected traits to test the equations, and the results were comparable with data from conventional methods. Results of this study have shown that NIRS could be a very useful tool to help yam breeders screen large sample sets using limited resources with very short time. This will enhance breeders’ rapid selection of genotypes at screening stage where many breeding lines are to be evaluated within the shortest time possible.
    https://dx.doi.org/10.1080/23312009.2019.1565623
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5206
    Non-IITA Authors ORCID
    Alamu Emmanuel Oladejihttps://orcid.org/0000-0001-6263-1359
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1080/23312009.2019.1565623
    Research Themes
    NUTRITION & HUMAN HEALTH
    IITA Subjects
    Nutrition
    Agrovoc Terms
    Yams; Calibration; Development; Proteins; Moisture; Ash
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Cogent Chemistry
    Collections
    • Journal and Journal Articles4835
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