The Determination of Drying Behavior of Enriched Izmir Gevrek with Protein

Abstract

In this study, Izmir gevrek -highly consumed at the breakfasts- was enriched with dairy proteins by using dairy products (Izmir tulum cheese, milk powder and whey powder)at different levels and 5 mm thick disc-shaped sliced gevrek was dried at three different temperatures (140, 150 and 160°C) in a convection oven. The drying characteristics of snacks were examined with six different thin-layer drying models that are commonly used in literature. The Page model gave a better fit to experimental drying data and had the highest adjusted R-square with the lowest reduced chi-square and root mean square error values as compared to other models. The effective diffusion coefficient was calculated and the activation energy was derived from Arrhenius equation.

Keywords

• i̇nce tabaka modeli
• difüzyon
• protein
• zenginleştirme
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