Abstract
Three different mathematical equations were obtained by solving the diffusion equation of Fick analytically for an infinite cylinder with three different boundary conditions: (i) immediate surface saturation; (ii) surface resistance; (iii) two layers with different diffusion properties. The soaking of long-grain white rice (La Belle) can best be approximated by a model where an immediate surface saturation is assumed, while the two-layer model gives the best approximation in simulating the moisture uptake of brown rice. The activation energies of the diffusivity through the endosperm and the testa were calculated, assuming an Arrhenius type equation for diffusion dependence on temperature, to be 22·5 kJ mol −1 and 64·5 kJ mol −1.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
