1. GRUPO 6

2. Effect of Ascorbyl Palmitate in Soybean Oil Triglycerides at Room and Elevated Temperatures
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3. Ascorbyl Palmitate
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4. Materials (RBD Soybean Oil)
Peroxide value < 0.1
Acid value 0.1
p-Anisidine value 1.3
Iodine value 131.1
Mayor fatty acids C16: C18:0 4.1 C18: C18: C18:3 6.8
Metals (ppm) Fe < 0.1 Cu < 0.05 Ni < 0.1
Tocopherols (ppm) a 86 b 14 g 787 d 276
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5. Methods RBD soybean oil was added 300 ppm ascorbyl palmitate
Tests were performed in Oxidograph™ and Rancimat™ at 80, 100 and 120°C
Schaal oven storage tests were performed in darkness using open beakers (250 ml, sample size of 100 g) at 20, 40, 60, 80 and 100°C. Periodic analyses (after analysis the sample was discharged)
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6. Analytical Peroxide value AOCS Cd 8-53 (93)
Acid value AOCS Cd 3d-63 (93)
p-Anisidine value AOCS Cd (93)
Tocopherols AOCS Ce 8-89 (93), mod.
Ascorbyl palmitate JAOCS, 62, 745 (1985), mod.
Oxidograph™ According to manual
Rancimat™ (OSI) AOCS Cd 12b-92 (93)
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7. Oxidograph™
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8. Rancimat™
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9. Danisco Ingredients/Antioxidants

10. Danisco Ingredients/Antioxidants

11. Development of Hydroperoxides
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12. Decomposition of Hydroperoxides
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