Effect of different concentrations of salt and starch and various degrees of pasteurization on Streptococcus faecalis 808 fate in luncheon meat

Str faecalis with respect to its thermal stability is used for evaluation of the pasteurization effectiveness in canned meat. In this work conventional doses of heating expressed as P (Tₒ=72°C, z= 10°C) required for sterilization of luncheon meat contaminated with Str. faecalis (10⁶ cfu) and containing various concentrations of NaCI (2, 3 and 3.5%) and starch (2, 4 and 6%) were determined. The relation was described as follows: y = 6.242 - 0.997 where r = -0.9549. The heat doses expressed as P = 5 min and P = 10 min assured pasteurization of canned meat at aw ≥ 0.985 and 0.955 to 0.972, respectively. Theoretical calculations indicate that pasteurization value P = 6.26 min assures sterilization of the examined tins.