ARTICLE 104 FEED & ADDITIVE MAGAZINE November 2025 like BHA, BHT and Propyl gallate in the fat and the cooker. Antioxidants were applied as per Figure 2: AOX 1 in crude raw materials and AOX 2 in PAP. We treated the crude raw materials with 700 ppm of Verafyt LR-35 Liquid. The PAP were either treated or left untreated with different Verafyt LR35 Liquid dosages as in Table 1. We monitored the primary and secondary compounds of oxidation in PAP over 12 months at ambient temperature with no UV exposure. The peroxide values shown in Figure 2 remain under control after a 12 -month stability study in both samples (M-B and M-C) which were treated in poultry crude raw materials and PAP. Sample (M-A) with only crude raw materials treatment achieved almost 4 months of stability when PV curb crossed the 10 meq O2/kg fat max limit. Complementary antioxidant treatment in the PAP at the AOX 2 application point increase drastically the PAP shelf life which confirms the absolute needs of the PAP treatment at the end of the dry rendering process. PAP complementary treatment by Verafyt LR 35 Liquid in the meal multiply more than 3 times the final meal shelf-life versus the PAP only treated on crude ABP. Months at Ambient Temperature Peroxide Value (meq O2/kg fat) 20,0 15,0 10,0 5,0 0,0 0 1 2 3 4 5 6 7 8 9 10 11 12 M-A 700 ppm Verafyt LR-35 liq AOX 1 / M-B 700 ppm Verafyt LR-35 liq AOX 1 / 2200 ppm Verafyt LR-35 liq AOX 2 M-C 700 ppm Verafyt LR-35 liq AOX 1 / 900 ppm Verafyt LR-35 liq AOX 2 Figure 3. Peroxides Value AOCS method follow-up at ambient temperature with no UV exposure, using different treatments in poultry crude raw materials (AOX 1) and PAP (AOX 2) with Verafyt LR-35 Liquid5 Sampling M_A M_B M_C Blend Verafyt LR 35 Liquid Blend - Verafyt LR 35 Liquid Rates ppm 700 Rates ppm - 2200 990 Crude Raw Materials AOX 1 PAP AOX 2 Antioxidant Treatment Table 1
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