The values for vitamins retained by parboiled rice using the first
applied fortification method, the spraying and subsequent drying
are shown in Table 2. It seems that the parboiled rice absorbs
slightly less vitamin (p < 0.05) than the white rice during spraying,
varied from 75.5% for vitamin B1 to 58.5% for vitamin B12. The
harder surface, as well as the gelatinized structure seems not to
allow the diffusion of vitamins into the rice kernel, in the same
degree obtained in white and brown rice. Gelatinization of starch
may result in a decrease of diffusion coefficient almost by one order
of magnitude (Karathanos, Villalobos, & Saravacos, 1990). However