Phenolic acids and antioxidant properties of barley wholegrain and pearling fractions
Bibliographic record
Abstract
Demand for functional foods that offer therapeutic and disease-prevention properties is globally increasing. Barley presents an opportunity in this regard due to its high antioxidants and dietary fiber contents. Barley wholegrain and milling fractions were investigated in terms of phenolic acids composition, scavenging capacity against DPPH and ABTS radicals and inhibition of human LDL oxidation in vitro. Ferulic and p-coumaric were the primary phenolic acids in wholegrain and pearled fractions accounting for 43-97% and 2-55% of total phenolic acids, respectively. This wide range demonstrates significant differences among barley wholegrain or pearled products. Antioxidant capacities also varied significantly among barleys with the hulless cultivars tested exhibiting the greatest. The outer layers fraction showed higher scavenging capacity against ABTS and DPPH radicals and inhibitory effects toward LDL oxidation compared with the endosperm fractions. The results suggest that the outer layer and hull fractions would potentially provide promising sources of natural antioxidants.
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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 | 0.001 | 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".