Effects of Heat Treatments on the Head Yields of High Moisture Rough Rice

摘要

ABSTRACTThe influence of high temperature heat treatments on the head yields of rough rice having moisture in the range 18–30 wet basis was investigated using an experimental rotary conduction heating unit with constant agitation. Based on the time‐temperature history of bulk grain, reaction kinetic parameters (Fcand zcvalues) were determined for specified changes in head rice yields for general application. The estimated isothermal heating times (Fcvalues) were related to the reference bulk grain temperatures (Tref) and initial moisture of rice samples (IMC). The plots of Fcvalue and Trefled to the determination of zcvalue and its dependence on the IMC of rough r