To obtain the base mixture, pork trimmingswere ground through an
8-mm plate (Olotinox, Olox, Spain) in a mincer attached to a mixer
(CATO 114, Sabadell, Spain) and then the water, salt and pepper were
added into the bowl and mixed with a spiral dough hook at medium
speed (80 rpm) during 5 min. For each treatment, the corresponding
proportions of PFA were added and then mixed again for 5 min. This
mixture was shaped using a commercial burger maker (6 cm internal
Ø) to obtain patties of approximately 40 g and 1 cm thickness. Plastic
packaging film was used to help maintaining the shape of the patties