Evaluation of Phosphatase Inactivation Kinetics in Milk Under Continuous Flow Microwave and Conventional Heating Conditions
Why this work is in the frame
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Bibliographic record
Abstract
Raw milk was subjected to conventional isothermal water bath heating, continuous flow microwave heating and continuous flow thermal holding in the pasteurization temperature range (60–75°C), and then immediately cooled in an ice-water bath. The associated alkaline phosphatase (ALP) residual activities were evaluated. Based on the gathered time-temperature profiles, the come-up time (CUT) and come-down time (CDT) contributions to enzyme inactivation were assessed and adjusted prior to first order rate kinetic data handling. The time-corrected D-values of ALP varied from 1250 s at 60°C to 1.7 s at 75°C with a z-value of 5.2°C under conventional batch heating conditions, 128 s at 65°C to 13.5 s at 70°C, with a z-value of 5.2°C under continuous-flow thermal holding condition, 17.6 s at 65°C to 1.7 s at 70°C with a z-value of 4.9°C under continuous-flow microwave heating condition. D values associated ALP inactivation under microwave heating were therefore an order of magnitude lower than under conventional thermal heating. The results thus emphasize that ALP inactivation occurred much faster under microwave heating condition than under conventional heating thereby confirming the existence of enhanced thermal effects from microwave. Because of the enhanced effects, MW pasteurization would reduce the severity of the treatment and hence potentially offer pasteurized milk of higher quality.
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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 | 0.001 | 0.001 |
| 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