Table D.2.
Heat resistance parameters for Brucella species extracted from the literature review DT
| Reference | DT‐value (min) | zT‐value (°C) | Log10 reduction | Strain, equipment and experimental conditions |
|---|---|---|---|---|
| Park et al. (1932) | n.a. | n.a. | ≥ 3.7 log10 (inoculum) |
B. suis strain 1922 and 2872; cotton‐stopped tube in water bath at 60°C for 30 min |
| Park et al. (1932) | n.a. | n.a. | ≥ 3.7 log10 (inoculum) |
B. suis strain 1922 and 2872; cotton‐stopped tube in water bath at and 62°C for 30 min |
| Park et al. (1932) | n.a. | n.a. | Survivors detected but not quantified (inoculum = 7 log10 CFU/mL) |
B. suis strain 1922 and 2872; cotton‐stopped tube in water bath at and 62°C for 30 min |
| Park et al. (1932) | n.a. | n.a. | Survivors detected but not quantified (inoculum = 8.7 log10 CFU/mL) |
B. suis strain 1922 and 2872; cotton‐stopped tube in water bath at and 62°C for 30 min |
| Park et al. (1932) | n.a. | n.a. | ≥ 8.7 log10 (inoculum) |
B. suis strain 1922 and 2872; Hermetically sealed tube in water bath at 60, 61 and 62°C for 30 min |
| Foster et al. (1953) | n.a. | 5.4( a ) | ≥ 5.5 log10 (inoculum) |
B. abortus strain 2308; Fit‐for‐purpose apparatus; Complete inactivation at: 61.5°C for 23 min; 65.5°C for 4 min; 71.1°C for 21 s and 72°C for 4 s; |
| Kronenwett et al. (1954) | n.a. | 4.3( a ) | ≥ 8.3 log10 (inoculum) |
B. abortus strain 19; Fit‐for‐purpose apparatus; Complete inactivation at: 64°C for 32–34 s; 64.4°C for 32–34 s; 64.6°C for 26–29 s; 64.9°C for 24 s; 65.4°C for 18 s and 65.9°C for 12 s; |
| Kronenwett et al. (1954) | n.a. | 4.3( a ) | ≥ 8.3 log10 (inoculum) |
B. abortus strain 659; Fit‐for‐purpose apparatus; Complete inactivation at: 65.1°C for 35–38 s; 65.3°C for 26–30 s; 66°C for 18–31 s; 66.7°C for 14 s and 67°C for 13 s; |
| Kronenwett et al. (1954) | n.a. | 4.3( a ) | ≥ 4.5 log10 (inoculum) |
B. abortus strain 2016; Fit‐for‐purpose apparatus; Complete inactivation at: 64.3°C for 70–73 s; 65.5°C for 38–40 s and 66.6°C for 20–25 s. |
| Kronenwett et al. (1954) | n.a. | 4.7( a ) | ≥ 4.5 log10 (inoculum) |
B. abortus strain 2308; Fit‐for‐purpose apparatus; Complete inactivation at: 65.1°C for 95–100 s; 63.3°C for 33 s and 66.5°C for 3 s. |
| Kronenwett et al. (1954) | n.a. | ≥ 8 log10 (inoculum) |
B. abortus strain 2308; Fit‐for‐purpose apparatus; Complete inactivation at: 61.6°C for 150–180 s; 65°C for 28–30 s; 66.7°C for 16–18 s and 66.8°C for 10–12 s. |
|
| Kronenwett et al. (1954) | n.a. | 4.7( a ) | ≥ 8 log10 (inoculum) |
B. abortus strain 3237; Fit‐for‐purpose apparatus; Complete inactivation at: 63.4°C for 36–38 s; 64.5°C for 22–25 s; 66.5°C for 9 s and 64.8°C for 16–18 s. |
| Kronenwett et al. (1954) | n.a. | 4.3( a ) | ≥ 8 log10 (inoculum) |
B. abortus strain McComb; Fit‐for‐purpose apparatus; Complete inactivation at: 61.5°C for 240–270 s; 65°C for 32–34 s; 65.6°C for 24–26 s; 66°C for 22–24 s and 66.5°C for 12–14 s. |
| Kronenwett et al. (1954) | n.a. | 4.8( a ) | ≥ 8 log10 (inoculum) |
B. abortus strain Thompson; Fit‐for‐purpose apparatus; Complete inactivation at: 61.5°C for 150–180 s; 63.5°C for 74–79 s; 64.3°C for 53 s; 65.1°C for 35–37 s; 65.4°C for 26–29 s and 66.3°C for 20–22 s |
| Kronenwett et al. (1954) | n.a. | 4.8( a ) | ≥ 8 log10 (inoculum) |
B. abortus strain Woodward; Fit‐for‐purpose apparatus; Complete inactivation at: 66.6°C for 24–26 s; 67.2°C for 16–20 s and 67.8°C for 14–16 s |
| Davies and Casey (1973) | n.a. | n.a. | 3.3 log10 |
B. abortus strain 544; Water bath system; 72°C for 60 s |
| Davies and Casey (1973) | n.a. | n.a. | 5 log10 |
B. abortus strain 544; Water bath system; 65.5°C for 1 min |
| Davies and Casey (1973) | n.a. | n.a. | 0.7 log10 |
B. abortus strain 544; Water bath system; 60°C for 1 min |
| Davies and Casey (1973) | n.a. | n.a. | 0.7 log10 |
B. abortus strain 544; Water bath system; 54.5°C for 10 min |
| Davies and Casey (1973) | n.a. | n.a. | ≥ 6.6 log10 (inoculum) |
B. abortus strain 544; HTST simulator; 72°C for 5 s |
DT: decimal reduction time at a certain temperature; n.a.: not available, HTST: high temperature short time; zT: thermal resistance constant.
DT‐ and zT‐values together with the strain and equipment used to carry out the experiment are reported.
zT‐value estimated by the original authors from the thermal death time.