Dielectric Properties of Mashed Potatoes

Comparison and modeling of microwave tempering and infrared assisted microwave tempering of frozen potato puree

“…In literature, there are a few studies on the dielectric properties of mashed potatoes (Guan et al, 2004;Fasina et al, 2003), but these studies did not include the freezing temperatures. Although there was one study measuring the dielectric properties of mashed potatoes as a function of temperature at lower temperature range (Regier et al, 2001), it is necessary to obtain more data of dielectric properties of potato puree at a wider freezing temperature range.…”

Role of ceramic composites and microwave pulsing on efficient microwave processing of pork meat samples

“…The microwave heating on food processing depends on material dielectric properties, sample geometry and applied microwave power Ayappa et al, 1992;Bhattacharya & Basak, 2006;Bonafonte et al, 2007;Brunton, Lyng, Zhang, & Jacquier, 2006;Lin, Anantheswaran, & Puri, 1995;Oliveira & Franca, 2002;Regier, Housova, & Hoke, 2001). and Ayappa et al (1992) reported that the temperature dependence of dielectric properties influences the heating rates significantly.…”

“…and Ayappa et al (1992) reported that the temperature dependence of dielectric properties influences the heating rates significantly. Regier et al (2001) found that dielectric properties can serve as an input parameter for the mathematical modeling of temperature profiles in microwave heating of food of cylindrical and slab shaped geometry. Oliveira and Franca (2002) showed that microwave heating is significantly dependent on sample size and shape.…”

“…Modeling on microwave heating of food samples is primarily governed by electromagnetic wave propagation which is based on two formulations: (1) Lambert's exponential law (Ayappa, Davis, Crapiste, et al, 1991;Barringer et al, 1995;Basak, 2004;Curet, Rouaud, & Boillereaux, 2008;Liu, Wang, & Sakai, 2005;Mao, Watanabe, & Sakai, 2005;Yang & Gunasekaran, 2004) and (2) Maxwell's equations (Ayappa, Davis, Crapiste, et al, 1991;Ayappa et al, 1992;Basak, 2004;Basak & Kumaran, 2005;Basak & Meenakshi, 2006a, 2006bBasak & Priya, 2005;Campanone & Zaritzky, 2005;Curet et al, 2008;Liu et al, 2005;Regier et al, 2001;Yang & Gunasekaran, 2004). Lambert's law is a simple power formulation which states that microwave power decays exponentially as a function of distance of penetration into the sample.…”

Measuring the permittivity and permeability of lossy materials :

“…(179) and (180) and the tangential electric fields at 2 = L, we obtain oo Qm = exp {j3mL) J2 l^ri CXp {-j2nL) + B^CXp {'^2nL)] < GmRn >,…”