Headspace Volatiles and Physical Characteristics of Vacuum‐microwave, Air, and Freeze‐dried Oregano ( <i>Lippia berlandieri</i> Schauer)
Bibliographic record
Abstract
ABSTRACT: Mexican oregano ( Lippia berlandieri Schauer) was dried using a freeze drier, conventional hot air drier, and a recently developed vacuum‐microwave drier. The effect of the drying method on the relative content of major flavor volatiles, rehydration rate, color, and structural integrity of the herb was evaluated. Dynamic headspace analysis of volatiles present in fresh or dried oregano revealed that β‐myrcene, α‐terpinene, γ‐terpinene, p‐cymene, and thymol were the major volatile compounds of the plant. The level of thymol in vacuum‐microwave‐dried oregano was found to be comparable to that of fresh or freeze‐dried samples (1.3 times the thymol concentration of air‐dried). Air‐dried samples of oregano were darker, were less green, and exhibited lower rehydration rates than those prepared by vacuum‐microwave or freeze‐drying. Structures of vacuum‐microwave and freeze‐dried oregano appeared to be quite similar as observed on electron micrographs.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".