The
lean meat (71.25 ± 0.97% moisture, 20.95 ± 0.43% protein and
7.80 ± 0.21% fat) and fat (76.59 ± 0.39% fat, 20.48 ± 0.67% moisture,
and 2.93 ± 0.30% protein; AOAC, 1984) were separately chopped in a
bowl chopper (Schneidmeister SMK 40, Berlin, Germany) at the low
speed setting for 1 min, to obtain a homogenous mass, and then frozen
(−20 °C) in individual polyethylene bags, of 1 kg per bag and used
within 3 months.