Microwave Energy Absorption Behavior of Foamed Berry Puree Under Microwave Drying Conditions

Autor: Chenghai Liu, Baohui Zhang, Xianzhe Zheng, Bingxin Liu, Yingkuan Wang, Haijun Liu, Sun Jingkun, Yu Sun, Zhen Lin
Rok vydání: 2013
Předmět:
Zdroj: Drying Technology. 31:785-794
ISSN: 1532-2300
0737-3937
DOI: 10.1080/07373937.2012.761635
Popis: The microwave energy absorption behavior of foamed berry puree was studied considering the variations in the physical properties of the material. The absorptions of microwave energy within foamed berry puree indicated fluctuating trends in decay as microwave drying progressed, which were attributed to the effects of temperature, moisture content, and density of the material. Mathematical models of the dielectric constant ϵ′ and dielectric loss factor ϵ″ as a function of temperature and moisture content were developed using second-order functions. During microwave drying of foamed berry puree, moisture content had the most important negative influence on the dielectric constant and dielectric loss factor, followed by temperature and porosity.
Databáze: OpenAIRE
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