Enriched n-3 PUFA/konjac gel low-fat pork liver pâté: lipid oxidation, microbiological properties and biogenic amine formation during chilling storage.
Low-fat pork liver pâtés enriched with n-3 PUFA/konjac gel were formulated by replacing (totally or partially) pork backfat by a combination of healthier oils (olive, linseed and fish oils) and konjac gel. Lipid oxidation, microbiological changes and biogenic amine (BA) formation were studied in healthier-lipid pâtés during chill storage (85 days, 2 °C). Increasing unsaturated fatty acid levels favoured lipid oxidation, although the levels reached were low throughout the storage period, ranging from 0.113 to 0.343 mg malonaldehyde/kg sample. Neither the formulation nor the time in storage affected the microbial load. Biogenic amine contents of products (the sum of initial concentrations and amines formed during storage) varied according to the type of BA but were far below levels that could constitute a consumer health hazard.
Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN-CSIC) (Formerly Instituto del Frío), Ciudad Universitaria, 28040 Madrid, Spain.
G
G
Delgado-Pando
S
S
Cofrades
C
C
Ruiz-Capillas
M
M
Triki
F
F
Jiménez-Colmenero
D031056:Amorphophallus / Q000737:chemistry*; D000818:Animals; D001679:Biogenic Amines / Q000032:analysis* / Q000378:metabolism; D004032:Diet / Q000208:ethnology; D018752:Diet, Fat-Restricted; D019358:Fat Substitutes / Q000009:adverse effects / Q000737:chemistry*; D015525:Fatty Acids, Omega-3 / Q000032:analysis*; D005395:Fish Oils / Q000737:chemistry; D063427:Food Quality; D061353:Food Storage; D005782:Gels; D008043:Linseed Oil / Q000737:chemistry; D015227:Lipid Peroxidation; D008099:Liver / Q000737:chemistry* / Q000378:metabolism; D008461:Meat Products / Q000032:analysis* / Q000382:microbiology; D000069463:Olive Oil; D010938:Plant Oils / Q000737:chemistry; D035281:Plant Tubers / Q000737:chemistry; D012034:Refrigeration; D013030:Spain; D034421:Sus scrofa
D001679:Biogenic Amines; D019358:Fat Substitutes; D015525:Fatty Acids, Omega-3; D005395:Fish Oils; D005782:Gels; D000069463:Olive Oil; D010938:Plant Oils; D008043:Linseed Oil