◆ SpookStack

Results - Heat Stability at 70°C Mean values of the plate counts _-1; the standard deviation were plotted on semi-log graph paper. "Best Fit" regression lines were drawn. The regression lines were not calculated via computer with a statistical program. They were drawn "by eye."! The time in minutes required for 50% inactivation of each preparation at 70°C was determined on the graphs. Maximum and minimum inactivation times were also determined by graphing regression lines within the standard deviation points. Strain 50% Inactivation times in minutes ZQQQ! Average Maximum Minimum SPS 02.266 - 378 582 282 ' SPS 02.57.03 - 1470 2352 894 SPS 02.88.01  306 346 270 Q SPS 02.266 Leahy material! and SPS 02.88.01 New York Post material! were indistinguishable in this heat stability test. They were both statistically different from SPS 02.57.03 Daschle material!. Name/Date - Name/Date - 6