2.2. Measurements and analysis
The ultimate pH value of M. longissimus dorsi was measured
between the 11 and 12 ribs (Knick Portamess pH metre 752 equipped
with a Xerolyte electrode; Ingold Xerolyt LoT406-M6, Germany).
Colour (L* = lightness and a* = redness) was measured with a
Minolta Chromameter CR-400 (Minolta Camera Co. Japan) calibrated
with a white plate. The colour was measured on a freshly cut surface
of the loin by making three measurements across the surface. The
blooming time was 5 min at 12 °C.