title: Effect of the partial replacement of pork backfat by microencapsulated fish oil or mixed fish and olive oil on the quality of frankfurter type sausage.
abstract: Frankfurter sausages were reformulated to produce better lipid compositions by replacing the pork backfat by healthy oils. Sausages in, three different batches were manufactured: control (CO) with 100% of pork backfat, and modified sausages where the pork backfat was replaced with 50% by microencapsulated fish oil (ME) and by unencapsulated olive and fish oil mixture (OM). The ME treatments showed the lowest pH, fat and energy values and the highest protein and carbohydrates levels. The fat replacement by oils significantly (P< 0.05) affected to color parameters, since the ME batches presented the highest L* and b* values, whereas the OM treatments showed the highest values of a* values. As expected, the replacement of backfat by oils also greatly modified the fatty acids profile, since the OM group had the highest MUFA andn-3 PUFA contents. The microencapsulation process significantly (P< 0.001) increased the lipid oxidation. The ME batch presented the highest TBARS values and volatile compounds derivate from lipid oxidation, while the OM treatment showed the same lipid oxidation rate as CO group.
authors.affiliation: Centro Tecnológico de la Carne de Galicia, Rúa Galicia No. 4, Parque Tecnológico de Galicia, San Cibrán das Viñas, 32900 Ourense, Spain.
authors.forename: Rubén
authors.initials: R
authors.lastname: Domínguez
authors.affiliation: Centro Tecnológico de la Carne de Galicia, Rúa Galicia No. 4, Parque Tecnológico de Galicia, San Cibrán das Viñas, 32900 Ourense, Spain.
authors.forename: Mirian
authors.initials: M
authors.lastname: Pateiro
authors.affiliation: Centro Tecnológico de la Carne de Galicia, Rúa Galicia No. 4, Parque Tecnológico de Galicia, San Cibrán das Viñas, 32900 Ourense, Spain.
authors.forename: Rubén
authors.initials: R
authors.lastname: Agregán
authors.affiliation: Centro Tecnológico de la Carne de Galicia, Rúa Galicia No. 4, Parque Tecnológico de Galicia, San Cibrán das Viñas, 32900 Ourense, Spain.
authors.forename: José M
authors.initials: JM
authors.lastname: Lorenzo
keywords: Fat replacement; Fatty acids; Microencapsulated fish oil; Olive oil; Physicochemical properties; Volatile compounds