Journal Article

·2014

Drying Kinetics and Rehydration Characteristics of Convective Hot-Air Dried White Button Mushroom Slices

Ebrahim Doymaz YTU

Abstract

The effect of pretreatment (0.5% citric acid solution) and drying air temperature (40, 50, 60, and 70C) on drying characteristics of button mushroom slices was investigated in a cabinet dryer. The experimental results show that the drying temperature and pretreatment have significant effects on the moisture removal frommushroom. In addition, rehydration ratio of pretreated samples was higher than that of control ones. Four kinds of classical model were used to obtainmoisture data and the logarithmicmodel was the best for representation ofmushroomdrying.The values of effectivemoisture diffusivity were found to range between 1.70×10−10 and 7.12 × 10−10 m/s over the temperature range studied. The activation energy was found to be 35.04 and 37.21 kJ/mol for control and pretreated samples, respectively.

Keywords

Chemistry Citric acid Thermal diffusivity Mushroom Air temperature Kinetics Moisture Dehydration Atmospheric temperature range Activation energy Food science Analytical Chemistry (journal) Chromatography Thermodynamics Biochemistry Meteorology Organic chemistry

Subject Areas

Food Drying and Modeling ·Food Science ·Life Sciences
Microencapsulation and Drying Processes ·Food Science ·Life Sciences
Freezing and Crystallization Processes ·Mechanics of Materials ·Physical Sciences

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