Pasteurization process development for controlling Salmonella in in-shell almonds using radio frequency energy

Inactivation of Salmonella Senftenberg, Salmonella Typhimurium and Salmonella Tennessee in peanut butter by 915 MHz microwave heating

“…Another study confirming that peanut butter treated by electron beams showed increased peroxide values was also reported (El-Rawas et al, 2012). Gao et al (2011) reported that peroxide values of almonds increased after RF heating. But in this study, acid and peroxide values were not affected by microwave heating (Table 1).…”

Simulation and prediction of radio frequency heating in dry soybeans

“…Although absolute values of STUI could be different, the findings, such as a surrounding material with similar dielectric constant to that of sample and appropriate thickness, placing the sample in the middle of electrodes, and using similar top electrode size to that of the sample, should be practical to improve RF heating uniformity in other dry products, such as lentils, almonds, walnuts etc., and other applications, such as drying, pasteurization, and enzyme inactivation (Gao, Tang, Villa-Rojas, Wang, & Wang, 2011;Marra et al, 2007;Marshall & Metaxas, 1998). The model results have been validated by experimental temperature distributions over three layers of soybeans in a container.…”

Investigation of radio frequency heating uniformity of wheat kernels by using the developed computer simulation model

“…RF technology has been successfully applied in controlling insects in walnuts (Wang, Monzon, Johnson, Mitcham, & Tang, 2007a, 2007b and legumes including lentils and peas (Jiao, Tang, Johnson, & Wang, 2012) without obvious quality degradation of the product. More recently, RF has been proposed as an alternative pasteurization method for low-moisture foods, such as almonds (Gao, Tang, Villa-Rojas, Wang, & Wang, 2011), peanut butter cracker sandwiches (Ha, Kim, Ryu, & Kang, 2013), and powdered red and black pepper spices (Jeong & Kang, 2014;Kim, Sagong, Choi, Ryu, & Kang, 2012). Therefore, RF holds great potential to control insects and microorganisms in agricultural products.…”