Influence of the Processing on Composition, Protein Structure, and Techno-Functional Properties of Pork Byproduct Isolates Produced by Isoelectric Precipitation and Ultrafiltration–Diafiltration
Why this work is in the frame
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Bibliographic record
Abstract
The valorization of pork slaughterhouse byproducts presents a promising strategy to reduce the substantial volume of waste generated by the meat industry. In this work, isoelectric precipitation (IEP) and ultrafiltration–diafiltration (UF-DF) were used to produce protein isolates from pork byproducts (PBPI). Both isolates had comparable protein contents (81.73–84.56%) and similar fatty acid profiles, but PBPI-UFDF exhibited better nutritional lipid indices. The amino acid profiles of both isolates exceeded the FAO recommendations. Structural analyses revealed that UF-DF better preserved protein structure, with higher surface hydrophobicity (538.04 vs 77.96 AU), free sulfhydryl content (60.14 vs 16.44 μmol/g), and denaturation temperature (146.04 vs 106.10 °C) compared to IEP. This translated into improved protein solubility across a broad range of pH range (40–95% vs 3–37%) and lower protein aggregation. PBPI-UFDF also showed superior gelation properties, highlighting its potential as a high-quality functional protein ingredient.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| 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) | 0.000 | 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 it