EFFECTS OF FOUR SPECIES OF BACTERIA ON PORCINE MUSCLE 2. Electrophoretic Patterns of Extracts of Salt‐Soluble Protein

Abstract
SUMMARY– Electrophoresis of 0.6 M KCI extracts of porcine longissimus dorsi muscle revealed little change in the type or number of protein bands found either by starch‐urea or disc‐urea gel electrophoresis. The 0.6 M KCI extracts of muscle samples inoculated with Pediococcus cerevisiae, Leuconostoc mesenteroides and Micrococcus luteus and stored at 2 and 10°C for 20 days did not differ electrophoretically from control samples. Extracts of samples inoculated with Pseudomonas fragi showed a loss in the number of protein bands on starch‐urea gel and disc‐urea gel electrophoresis, indicating this organism exhibited some proteolytic effect upon the myofibrillar proteins.