Effect of sodium ascorbate dose on the shelf life stability of reduced nitrite liver pâtés.
The effect of sodium ascorbate (SA; 500, 750, 1000 mg/kg) and sodium nitrite (SN; 40, 80, 120 mg/kg) doses on the shelf-life stability of liver pâtés was investigated in a full factorial design. Clear dose-dependent responses of the added SN or SA were found for the concentrations of nitrite, ascorbic acid and dehydroascorbic acid in the raw batters and in the cooked pâtés before and after 48 h of chilled display. Decreasing the SN dose to 80 mg/kg had no negative impact on the colour stability (a* value) and lipid oxidation (TBARS), and no additional antioxidant effect of SA was noticed. Lowering SN to 40 mg/kg resulted in proper colour formation, but the colour stability was inferior and lipid oxidation increased. Yet, increasing the amount of SA, at this low SN dose, resulted in lower TBARS values. Decreasing the SN dose to 80 or 40 mg/kg had no distinct effect on protein oxidation, which was however only measured by carbonyl content.
Laboratory of Animal Nutrition and Animal Product Quality, Department of Animal Production, Faculty of Bioscience Engineering, Ghent University, Proefhoevestraat 10, 9090 Melle, Belgium.
Els
E
Vossen
Evelyne H A
EH
Doolaege
Haile Demewez
HD
Moges
Bruno
B
De Meulenaer
Slawomir
S
Szczepaniak
Katleen
K
Raes
Stefaan
S
De Smet
D000818:Animals; D000975:Antioxidants / Q000737:chemistry*; D001205:Ascorbic Acid / Q000737:chemistry*; D003683:Dehydroascorbic Acid / Q000737:chemistry; D057140:Fast Foods / Q000032:analysis*; D005511:Food Handling; D005520:Food Preservatives / Q000737:chemistry*; D006358:Hot Temperature; D007700:Kinetics; D015227:Lipid Peroxidation / Q000187:drug effects; D008099:Liver / Q000737:chemistry*; D010084:Oxidation-Reduction / Q000187:drug effects; D010858:Pigmentation / Q000187:drug effects; D050050:Protein Carbonylation / Q000187:drug effects; D012977:Sodium Nitrite / Q000737:chemistry; D034421:Sus scrofa
D000975:Antioxidants; D005520:Food Preservatives; D012977:Sodium Nitrite; D001205:Ascorbic Acid; D003683:Dehydroascorbic Acid