Low-fat meat sausages with fish oil: Optimization of milk proteins and carrageenan contents using response surface methodology

MARCHETTI LUCAS; ANDRÉS S C; CALIFANO A N

MEAT SCIENCE

ELSEVIER SCI LTD

Lugar: Amsterdam; Año: 2014 vol. 96 p. 1297 - 1303

0309-1740

Response surface methodology was used to analyze the effect of milk proteins and 2:1 κ:ι-carrageenans on cooking loss (CL), weight lost by centrifugation (WLC) and texture  attributes of low-fat meat sausages with pre-emulsified fish oil. A central-composite design was used to develop models for the objective responses. Changes in carrageenans affected more the responses than milk proteins levels. Convenience functions were calculated for CL, WLC, hardness, and springiness of the product. Responses were optimized simultaneously minimizing CL and WLC; ranges for hardness and springiness corresponded to commercial products (20 g of pork fat /100g). The optimum corresponded to 0.593 g of carrageenans /100g and 0.320 g of milk proteins and its total lipid content was 6.3 g/100g. This formulation was prepared and evaluated showing a good agreement between predicted and experimental responses. These additives could produce low-fat meat sausages with pre-emulsified fish oil with good nutritional quality and similar characteristics than traditional ones.