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Effect of storage on nonenzymatic browning reactions in carob pekmez

International Journal of Food Science and Technology, ISSN: 0950-5423, Vol: 45, Issue: 4, Page: 751-757
2010
  • 18
    Citations
  • 0
    Usage
  • 14
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    18
    • Citation Indexes
      18
  • Captures
    14

Article Description

Carob pekmez was stored at 5, 25, 35 and 45 °C for studying the reaction kinetics of nonenzymatic browning reactions. Hydroxymethylfurfural (HMF) formation, browning index (A) and CIE (International Commission on Illumination) colour parameters were analysed to evaluate nonenzymatic browning reactions. HMF formation and A values increased linearly with the storage time and temperature and both followed zero-order reaction. No fitting model was found for the changes in visual CIE parameters. The dependence of rate constant of nonenzymatic reactions on temperature was represented by an Arrhenius equation and the activation values were found as 114.87 kJ mol and 86.62 kJ mol for HMF formation and A420 values, respectively. The excellent linear correlations (r = 0.728-0.99) among colour parameters, browning index and HMF were found. © 2010 The Authors. Journal compilation © 2010 Institute of Food Science and Technology.

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