2.6. Physico-chemical analysis
2.6.1. pH
The pH of the centre of each steak was measured on each sampling day, using a Testo 205 pH probe (Testo AG, Germany) after measuring the CIE L∗a∗b∗ colour ordinates.
2.6.2. Drip loss
Drip loss was also measured on each of the sampling days, by first recording the weight of each steak prior to packaging. On each sampling day, the steaks were blotted dry with tissue paper and weighed for a second time. The difference was calculated and expressed as a percentage loss calculated from the initial weight of the sample.