Properties of different poultry skins sources in relation to co-extruded sausage casings
Why this work is in the frame
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Bibliographic record
Abstract
Casings are an essential component in the transformation of comminuted meat into a finished sausage. Their strength and the texture of the ground meat determine the “bite” perception when eating a sausage. Traditionally, meat has been stuffed into natural casings, but alternatives, such as cellulose and co-extruded collagen casings are emerging. Bovine hide split collagen is the primary source for co-extruded casings. However, an increase in meat products consumption puts pressure on the supply of collagen casings, and therefore producers are searching for alternatives. In this study, the properties of chicken skin collagen preparations from four types of birds [fast-growing broilers (42 d), slower-growing broilers (56 d), broiler breeders (52 wk), and laying hens (100 wk)] were investigated by biochemical, and physical analyses to obtain properties important in designing new dispersions for co-extrusion. SDS-PAGE, rheology, DSC and TNBS showed little difference in parameters between the different chicken types. However, after salt precipitation, creating strong films from the broiler breeder and laying hen skins’ dispersions was not possible. Creating films was possible with the dispersions of fast and slower-growing broiler skins, particularly after precipitation with saturated NaCl. In conclusion, chicken skin collagen from slower and fast growing broilers have the potential of being a suitable collagen source for the co-extrusion process. Overall, it was feasible to form stronger films with broiler skins than with skins of broiler breeder and laying hens. This is important as the casings’ strength dictates the initial sensory perception when eating a sausage.
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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 | 0.000 |
| 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 it