Figure 2
(A) Stability of iodine and folic acid in TFS formulated with Fe-FA premix. (B) Schematic of the two designs for iron-folic acid premix and how one of the premix samples (Fe extrude + FA) was made (Fe + FA) has both iron and folic acid in the core of the premix; (Feextrude + FA) has folic acid separated by a tiny layer of TiO2 in the premix; (Fe) has only iron in the premix, and folic acid and iodine was added as a solution.
