Storage life at 2 °C or −1.5 °C of vacuum‐packaged boneless and bone‐in cuts from decontaminated beef carcasses
Bibliographic record
Abstract
BACKGROUND: The microbiological condition of beef produced at North American plants has been improved as a result of the use of effective carcass-decontaminating treatments. The effect of these treatments on the storage life of beef has not been established. In this study, beef primal cuts in vacuum packs stored at -1.5 or 2 °C for up to 160 days were assessed for their microbiological and organoleptic properties. RESULTS: The odours of boneless cuts were acceptable after storage at either temperature for ≤160 days; and the flavours of steaks from boneless cuts stored at 2 or -1.5 °C for ≤70 or ≤120 days, respectively, were acceptable. The storage life of bone-in cuts stored at 2 or -1.5 °C was, respectively, shorter or the same as that of boneless cuts stored at the same temperature. More than 20 microbial species that were mostly obligate aerobes were present on both types of cuts before storage. After storage for ≥30 days, the microflora was dominated by carnobacteria and Enterobacteriaceae were present in the flora from early storage times. CONCLUSIONS: A storage life of 120-140 days was attained by vacuum-packaged beef primals from decontaminated carcasses stored at -1.5 °C. The bone-in cuts stored at 2 °C were spoiled at earlier times, probably by Enterobacteriaceae.
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How this classification was reachedexpand
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 | 0.000 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".