Abstract

HLEAP-ZAPATA, José Igor; RODRIGUEZ-DE-LA-PAVA, Gloria  and  DUSSAN-SARRIA, Saúl. Effect of fat replacement in red tilapia sausages (Oreochromis sp.) with a mixture of pork skin and quinoa fiber. rev.udcaactual.divulg.cient. [online]. 2020, vol.23, n.1, e1149.  Epub June 30, 2020. ISSN 0123-4226.  https://doi.org/10.31910/rudca.v23.n1.2020.1149.

The decrease in the consumption of saturated fats provided by animal foods and the search for healthier foods is a worldwide trend. Tilapia production in Colombia has been growing rapidly in recent decades, which raises the need to find alternatives for processing. The substitution of fats for a mixture of pork skin, water and quinoa fiber (PCFQ) in tilapia fillet sausages was evaluated. The chemical composition of the processed sausages, the caloric content, the pH, the CIELab color coordinates, the cooking moisture losses, the emulsion stability, the texture profile and the sensory assessment were determined. The addition of PCFQ led to an increase in moisture and total proteins, thanks to the water retention capacity of quinoa fiber. The sausage with the highest PCFQ addition (20%), obtained 48.2% less fat, 32.3% less calories and 31.1% loss of moisture from cooking compared to the control sausage. More stable meat emulsions were obtained with good texture profile parameters -TPA. Regarding sensory parameters, no significant differences were observed between processed sausages and control sausage. Therefore, it is concluded that the mixture can be used as a fat substitute in the preparation of tilapia fillet sausages, without affecting its physicochemical and sensory properties.

Keywords : fishing industry; pork skin; quinoa; tilapia sausages; saturated fat.

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