GC-MS Analysis of Chemical Composition and Free Radical Scavenging Activity of <i>Elaeagnus angustifolia</i> Bark
Why this work is in the frame
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Bibliographic record
Abstract
Elaeagnus angustifolia L., a hardwood species in the family of Elaeagnaceae, has long been used as part of traditional medicines to treat various diseases. However, limited study is available on the chemical composition and antioxidant activity of E. angustifolia bark. In this study, we undertook a phytochemical investigation of E. angustifolia bark by gas chromatographic and mass spectrometric (GC-MS) analysis. And antioxidant activity of the crude and following soluble fractions of E. angustifolia bark was evaluated by DPPH free radical scavenging assay. GC-MS investigation of 95% EtOH crude extracts from E. angustifolia bark detected 40 compounds, and DPPH free radical scavenging assay indicated that the bark EtOAc and BuOH soluble fractions exhibited significant antioxidant potential (IC50 values of 12.1 and 12.4 µg/ml, respectively) comparing with α-tocopherol and BHT (IC50 values 12.3 and 13.8 µg/ml, respectively), which were used as positive controls.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| 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 it