Base‐catalyzed derivatization methodology for FA analysis. Application to milk fat and celery seed lipid TAG
Why this work is in the frame
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Bibliographic record
Abstract
In this paper, an alternative base-catalyzed methodology for the facile derivatization in mild conditions of lipid TAG prior to FA analysis is proposed. Reagents were prepared by proton exchange between potassium tert-butoxide and either ethanol, n-propanol, n-butanol, or 2-methoxyethanol and used for the synthesis, at 40 degrees C for 15 min, of the corresponding derivatives, which were directly analyzed by GC. This methodology can be used on a routine basis and has been applied to standard and complex natural lipid samples. Tripalmitin was used to determine optimal reaction conditions; and bovine milk fat, containing C4 to C22 acids, and celery (Apium graveolens) seed oil, characterized by a high level of petroselinic acid, were comparatively analyzed as their ethyl, n-propyl, n-butyl, and 2-methoxyethyl esters.
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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 | 0.001 |
| 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