EVALUATION OF MATHEMATICAL MODELS FOR PREDICTION OF THIN-LAYER DRYING OF BANANA SLICES

Doymaz I.

INTERNATIONAL JOURNAL OF FOOD PROPERTIES, vol.13, no.3, pp.486-497, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 13 Issue: 3
  • Publication Date: 2010
  • Doi Number: 10.1080/10942910802650424
  • Journal Name: INTERNATIONAL JOURNAL OF FOOD PROPERTIES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.486-497
  • Keywords: Banana, Drying, Moisture content, Effective diffusivity, Activation energy, EFFECTIVE MOISTURE DIFFUSIVITY, OSMOTIC DEHYDRATION, TEA LEAVES, KINETICS, PRETREATMENTS, BEHAVIOR, OPTIMIZATION, PARAMETERS, STRAWBERRY, SELECTION
  • Yıldız Technical University Affiliated: Yes

Abstract

Drying characteristics of bananas were experimentally determined. The drying experiments were carried out in a hot air dryer at four inlet temperatures of 50, 60, 70 and 80 degrees C, at a constant air velocity of 2.4 m/s and relative humidity of 4-25%. The experimental results were fitted to five thin-layer drying models and it was found that the Page and Logarithmic models gave better fit that the other models. Values of the effective diffusivity ranged from 7.374 x 10(-11) to 2.148 x 10(-10) m(2)/s. Activation energy for moisture diffusion of the banana slices was found to be 32.65 kJ/mol.