Protective effects of 3,4',5,7‐tetrahydroxyflavone against squalene monohydroperoxide‐induced skin wrinkles and its green extraction using deep eutectic solvents
Bibliographic record
Abstract
Abstract Three flavone derivatives, 3,4′,5,7‐tetrahydroxyflavone (3,4′,5,7‐THF) and their glycosides 3,4′,5,7‐tetrahydroxyflavone‐3‐rhamnoglucoside, and 3,4′,5,7‐tetrahydroxyflavone‐3‐glucoside, were identified by partial enzymatic conversion of Camellia sinensis seed extract (CSSE). 2,2‐Diphenyl‐1‐picrylhydrazyl radical scavenging activity of these compounds and lipid peroxidation inhibition effects of 3.4′,5,7‐THF were tested to evaluate their antioxidant properties. To investigate the effects of 3,4′,5,7‐THF on squalene monohydroperoxide (SQLOOH)‐induced wrinkle formation, the dorsal skin of SKH1 hairless mice was used. Four weeks of treatment with 3,4′,5,7‐THF reduced wrinkle formation, in contrast to that observed in the group treated with SQLOOH only. A green and simple method has been suggested for the extraction of 3,4′,5,7‐THF from CSSE hydrolysate with nine deep eutectic solvents. A mixture of choline chloride and xylose yielded the best extraction result. These findings suggest that 3,4′,5,7‐THF is a natural compound with potential application in preventing SQLOOH associated skin aging.
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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 | 0.000 | 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) | 0.000 | 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".