Journal of Nutrition & Food Sciences

Journal of Nutrition & Food Sciences
Open Access

ISSN: 2155-9600

+32-466-90-21-62

Ibok O

Ibok O

Ghana

Publications
  • Research Article
    Thermal Stability of β-Amylase Activity and Sugar Profile of Sweet Potato Varieties during Processing
    Author(s): Mensah EO, Ibok O, Ellis WO and Carey EEMensah EO, Ibok O, Ellis WO and Carey EE

    Sweet-potato root is a good source of β-amylase for food applications. β-amylase catalyses the conversion of soluble starch to sugars thus increasing the free sugar composition and sweetness of processed sweet-potato products. This study was undertaken to determine effects of temperature, time and their interactions on thermal stability of β-amylase and sugar profile of sweet-potato roots. Moreover, percentage variability of temperature, time, genotype and interactions on β-amylase was assessed. Temperature, genotype, time, and genotype x temperature interaction accounted for 50%, 26%, 11% and 8% of the variation respectively. Increasing temperature and heating time generally reduced β-amylase activity and enhanced maltose formation. Heating sweet-potato roots up to 75°C reserve relatively higher percentage of the endogeno.. Read More»
    DOI: 10.4172/2155-9600.1000515

    Abstract PDF

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