Developing radio frequency technology for postharvest insect control in milled rice

Experimental evaluations of radio frequency heating in low-moisture agricultural products

“…The corner and edge heating was observed both in top and middle layers of samples with 4 thicknesses. These phenomena were also reported in RF treated chestnut , coffee bean (Pan et al, 2012), rice (Zhou et al, 2015), soybean (Huang et al, 2015a, b;Wang et al, 2015;Zhu et al, 2014), and wheat flour (Tiwari et al, 2011). The temperature in the middle layer was higher than that in the top layer for each sample with 4 thicknesses (Table 1), which was probably caused by the concentrated electromagnetic fields in the bottom layer of the samples due to direct contact with the bottom electrode, and heat loss of hot surface samples to the ambient air.…”

“…Heating uniformity improvements have been conducted in RF systems both using experiments Wang et al, 2010;Zhou et al, 2015) and computer simulations (Huang et al, 2015b;Tiwari et al, 2011;Wang et al, 2005;Jiao et al, 2014;2015a, b). Most of these researches are focused on processing parameters, such as hot air surface heating, moving and mixing but not on the sample's properties (Pan et al, 2012;Wang et al, 2010;Zhou et al, 2015).…”

“…Most of these researches are focused on processing parameters, such as hot air surface heating, moving and mixing but not on the sample's properties (Pan et al, 2012;Wang et al, 2010;Zhou et al, 2015). Initial research results show that rectangular shape containers provide the similar heating uniformity in squared, sphere, and cylinder ones (Alfaifi et al, 2014;Birla et al, 2008) and have thus been widely used in RF heating Jiao et al, 2012;Tiwari et al, 2011).…”

Fytosanitaire na-oogst behandel- en detectietechnieken voor plaagorganismen in tuinbouw

“…rijst, walnoten, kastanjes, koolzaad), doordat de insecten sneller opwarmen dan het product waarin deze zich bevinden , Hou et al 2015, Zhou et al 2015, Yu et al 2016. Het gaat hier om behandelingen van een aantal minuten.…”

Ionizing Radiation and the Influence of Package to Control of Sitophilus Oryzae in Rice

“…Rice weevil, Sitophilus oryzae (L.) (Coleoptera: Curculionidae) is a major pest of stored rice, wheat, oats, rye, barley and corn worldwide (Campos, 2005;Sabbour, 2012, Zhou et al, 2015. Most domestic and export markets have zero tolerance to grain contamination by insects such as rice weevil.…”