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Filtering by: Advisor Mandsager, Ronald E. Remove constraint Advisor: Mandsager, Ronald E. Committee Member Remcho, Vincent T. Remove constraint Committee Member: Remcho, Vincent T.

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  • Characterization of phenolics in Marion and Evergreen blackberries

    Creator:
    Siriwoharn, Thanyaporn
    Abstract:
    Frozen Marion (Rubus sp. hyb) and Evergreen blackberries (Rubus laciniatus) (whole berries, berries without seeds, and seeds alone) were acetone/ chloroform extracted. Phenolics were isolated using C₁₈ cartridges and polyamide resins, then characterized and measured by reversed-phase HPLC/diode array spectral techniques. The Polyamide isolated fractions of Marion berries contained four...
    Resource Type:
    Masters Thesis
    Full Text:
    *" Ronald E. Wrolstad Frozen Marion (Rubus sp. hyb) and Evergreen blackberries (Rubus laciniatus) (whole

  • Cherry phytochemicals

    Creator:
    Chaovanalikit, Arusa, 1974-
    Abstract:
    The distribution of anthocyanin pigments and polyphenolics of sweet (Prunus avium) and sour cherries (Prunus cerasus) were determined by Ultraviolet- Visible (UV-Visible) spectrophotometry and High Performance Liquid Chromatography with photodiode array detector (HPLC-DAD). Their antioxidant properties were determined by Oxygen Radical Absorbance Capacity (ORAC) and Ferric Reducing Antioxidant Power (FRAP)....
    Resource Type:
    Dissertation
    Full Text:
    Phytochemicals Abstract approved: Ronald E. Wrolstad The distribution of anthocyanin pigments and

  • Influence of cultivar and maturity on blackberry polyphenolics and investigation of sediment formation in blackberry juice

    Creator:
    Siriwoharn, Thanyaporn
    Abstract:
    The influence of cultivar and maturity on polyphenolic composition and antioxidant activity was investigated by UV-Visible spectrophotometry and analytical high performance liquid chromatography (HPLC) in commercially important blackberry cultivars and selections. The anthocyanin pigments changed tremendously with ripening. Total anthocyanins increased from 74.7-317 mg/100g fw from underripe to over ripe...
    Resource Type:
    Dissertation
    Full Text:
    Blackberry Juice. Abstract approved: "fc=»t- Ronald E. Wrolstad The influence of cultivar and