Azoreduction: Reductive Metabolism of Azo Food Dyes by Species of the Human Gut Microbiome
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Azo dye food colourants are widely used in Canada and other countries. When ingested, these dyes may be reduced by azoreductases of the gut microbiome bacteria to metabolites that might have immune-, neuro-, or genotoxic effects. I have identified obligate anaerobic bacterial species from the human gut that reduce these azo food dyes. Bacterial species representing six phyla were derived from human fecal microbiomes. Bacteria were incubated on dye-infused plates and decolourization was monitored by visual inspection. Taxa exhibiting high azoreductase activity belonged to the genera Clostridium, Hungatella, Enterocloster, Veillonella, Dielma, Eggerthella, Odoribacter, and Phocaeicola. The effects of the dyes on bacterial growth were studied. The genome sequences of two Veillonella spp. with high azo dye reduction activities were examined. Candidate genes were cloned and expressed as recombinant proteins, but none showed detectable azo dye reduction activity in vitro.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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