Testing antimicrobial effects of tea-tree oil using S. cerevisiae and bread mold
Bibliographic record
Abstract
Tea tree oil (TTO) is a naturally occurring chemical found extracted from the leaves of a tree called narrow-leaved paperbark. It is well known as an antiseptic, however, its potential as a natural household cleaning agent has not been thoroughly examined yet. We were interested in examining the anti-fungal properties of TTO, especially on common bread mould, spores of which are common to households. This study used fresh-baked white bread as media to observe the effects of TTO at 0.06% and 0.24% concentrations on mold spore formation and 0.25% TTO on yeast fermentation. It was concluded that TTO can inhibit mold growth at the lowest of 0.06% but did not reduce (p=0.07) yeast CO2 production at 0.25% concentration. The data highlights the efficacy of TTO against household mould and based on our yeast results is potentially not toxic at low concentrations, but more studies are required with a variety of mould species and concentrations to better understand the use of TTO as a cleaning agent.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| 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".