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    Enzymes inhibitory property, antioxidant activity and phenolics profile of raw and roasted red sorghum grains in vitro

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    U19ArtIrondiEnzymesNothomDev.pdf (355.2Kb)
    Date
    2019
    Author
    Irondi, E.A.
    Adegoke, B.M.
    Effion, E.S.
    Oyewo, S.O.
    Alamu, E.O.
    Boligon, A.A.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Whole grain cereals are important dietary sources for management of metabolic diseases due to the bioactive components they contain. Hence, this study investigated enzymes (pancreatic lipase, α-amylase, α-glucosidase, xanthine oxidase and angiotensin 1-converting enzyme) inhibitory property, antioxidant activity and phenolics profile of raw and roasted red sorghum (Sorghum bicolor) grains in vitro. Extracts of flours of raw and roasted (150 °C and 180 °C, for 20 min) grains were assayed for enzymes inhibitory and antioxidant activities using spectrophotometric methods; while their phenolic constituents were characterized using HPLC-DAD. The raw grains exhibited strong enzymes inhibitory and antioxidant activities, and contained phenolic acids (gallic, chlorogenic, caffeic, ellagic and p-coumaric acids) and flavonoids (quercetin, luteolin and apigenin). However, whereas the enzymes inhibitory activity and levels of the phenolic compounds in the grains decreased significantly (p <  0.05) with increasing roasting temperature, the antioxidant activity increased. Hence, roasting at high temperature may not be recommended for the optimum retention of the enzymes inhibitory property and phenolic compounds of red sorghum grains.
    https://dx.doi.org/10.1016/j.fshw.2019.03.012
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5560
    Non-IITA Authors ORCID
    Alamu Emmanuel Oladejihttps://orcid.org/0000-0001-6263-1359
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1016/j.fshw.2019.03.012
    Research Themes
    NUTRITION & HUMAN HEALTH
    IITA Subjects
    Grain Legumes
    Agrovoc Terms
    Enzymes; Diseases; Sorghum; Antioxidants; Metabolic Diseases
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Food Science and Human Wellness
    Collections
    • Journal and Journal Articles4836
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