HIGH PRESSURE DESTRUCTION KINETICS of INDIGENOUS MICROFLORA and <i>ESCHERICHIA COLI</i> IN RAW MILK AT TWO TEMPERATURES
Why this work is in the frame
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Bibliographic record
Abstract
ABSTRACT Raw milk with a high count of indigenous microflora, with and without inoculated Escherichia coliK‐12 (ATCC‐29055), was subjected to high pressure treatment (250–400 MPa) for various holding times (0–80 min) at two temperatures (3 and 21C). From the microbial survivor data, an instantaneous pressure kill value (IPK) which represented the effect of a pressure pulse, and kinetic parameters (rate constant, D‐value, z‐value and activation volume) were evaluated based on pressure hold‐time first order kinetics. Both IPK and D values were dependent on pressure level and temperature. Higher pressures, longer holding times and lower temperatures resulted in larger destruction of microorganisms, and E. coli was more pressure sensitive than indigenous microflora. Pressure dependency of kinetic parameters was well described by both pressure death time and Eyring‐Magee models. At 3 and 21C, the z p values were 227 and 240 MPa and λV# values were −2.32 and −2.34 (x 10 −5 m 3 mole −1 ), respectively, for indigenous microflora, and 179 and 205 MPa (z p ) and −2.95 and −2.75 (x 10 −5 m 3 mole −1 ) (λV#), respectively, for E. coli .
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it