ECFR pet food clay carbon

Anti-caking and related processing aids for pet food span FDA's feed-additive and GRAS lists plus AAFCO's Chapter Six additive table: 21 CFR 573.940 silicon dioxide, 573.260 calcium silicate, 573.340 diatomaceous earth and 573.900 pyrophyllite are listed as animal-feed additives; 21 CFR 582.2729 covers hydrated sodium calcium aluminosilicate (GRAS for animal feed); and AAFCO's Chapter Six table lists montmorillonite clays as anti-caking aid, pelleting aid and non-nutritive carrier at not more than 2% of the finished material. (Earlier drafts of this topic cited wrong section numbers — silicon dioxide is 573.940, not 573.340 which is diatomaceous earth; there is no 573.245 or 582.2160 in the parsed parts, and 573.880 is normal propyl alcohol, not bentonite.) Mineral-oil-based dust suppressants (573.680 mineral oil; 573.720 petrolatum/petroleum jelly) are limited to 3% in mineral supplements and 0.06% of the total ration per the AAFCO table. Because the parsed corpus indexes section numbers and titles rather than full text, exact inclusion-rate ceilings for each additive should be confirmed in the current eCFR section text before formulation use.