Table 1.
Culture | Heating menstra | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Saline | BHI broth | Skim milk | Whole milk | |||||||||
56 °C | 58 °C | 60 °C | 56 °C | 58 °C | 60 °C | 56 °C | 58 °C | 60 °C | 56 °C | 58 °C | 60 °C | |
B. cereus CFR 1521 | 7.40a | 3.65a | 3.50a | 10.55a | 3.50a | 4.05a | 7.60a | 6.90a | 3.70a | 7.65a | 5.45a | 3.60a |
(88.8) | (44.4) | (42.0)+ | (127.2) | (42.0) | (49.2) | (91.2) | (82.8) | (44.4) | (92.4) | (66.0) | (43.2) | |
B. cereus CFR 1532 | 7.20a | 4.85b | 3.45a | 6.20b | 4.25ab | 3.50a | 5.30b | 4.75b | 3.45a | 5.15b | 4.10a | 3.55a |
(86.4) | (58.8) | (42.0) | (74.4) | (51.6) | (42.0) | (63.6) | (57.6) | (42.0) | (62.4) | (49.2) | (43.2) | |
B. cereus CFR 1534 | 10.60b | 4.90b | 4.10a | 8.05ab | 5.80c | 4.15a | 7.15a | 5.45b | 3.90a | 6.50c | 4.75a | 4.15a |
(127.2) | (58.8) | (49.2) | (97.2) | (69.6) | (50.4) | (86.4) | (66.0) | (46.8) | (78.0) | (57.6) | (50.4) | |
B. cereus F 4810 | 7.70a | 5.45c | 3.90a | 7.00b | 5.25bc | 3.65a | 7.65a | 4.65b | 4.25a | 6.50c | 4.90a | 4.15a |
(97.2) | (66.0) | (46.8) | (84.0) | (63.6) | (44.4) | (92.4) | (56.4) | (51.6) | (78.0) | (58.8) | (50.4) | |
SEM | ±0.43 | ±0.12 | ±0.12 | ±0.67 | ±0.30 | ±0.39 | ±0.32 | ±0.26 | ±0.21 | ±0.16 | ±0.45 | ±0.22 |
a-cMeans in the same column followed by different superscripts differ significantly (p < 0.05)
*D-values are the means of two experimental trials with each performed in duplicates
+Figures in parentheses indicate the 12D (commercial sterility) values