Utilization of chicken feathers for PHA accumulation by bacteria isolated from slaughterhouse soil.
Bibliographic record
Abstract
The goal of this research is to reduce the high manufacturing costs of PHA and make this polymer truly commercially competitive with products derived from fossil fuels. In the present work, soil samples from bird farms and slaughterhouses were collected to isolate bacterial strains with the potential of utilising chicken feathers as a substrate in powder and hydrolysate form along with glucose for accumulating PHA when grown under nutritively limited media. Based on the colour intensity of stain taken up by the bacterial isolates on the application of Nile red and Sudan black B when grown on agar plates with nutrition-deprived media, 2 out of 30 isolated strains (LS18 and LS33) were qualitatively screened to be potent producers of PHA. LS18 was studied biochemically and physiologically followed by its 16S rRNA sequencing. Pre-treatment of chicken feathers for preparing hydrolysate and powder was done before its usage in the production media as a substrate for quantitative screening for PHA production. LS18 and LS33 were found to be capable of utilizing chicken feathers in the form of powder as well as hydrolysate.
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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 | 0.000 | 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) | 0.001 | 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".