PESQUISA MICOTOXICOLÓGICA DE PRODUTOS AVÍCOLAS IN NATURA E PROCESSADOS
Bibliographic record
Abstract
Analisou-se a ocorrência de aflatoxinas e ocratoxina A em carcaças, vísceras comestíveis e processadas de aves de empresas que representam diferentes regiões de produção avícola do Brasil. Diferentes tipos de produtos foram coletados, trimestralmente, sendo nove in natura e oito processados para extração de micotoxinas e quantificação pelo ensaio imunoenzimático (ELISA). Amostras positivas pelo método ELISA foram analisadas por cromatografia em camada delgada (CCD). Do total de amostras analisadas 12% foram positivas, sendo 10,8% para aflatoxina total e 1,2% para ocratoxina A. Os resultados obtidos pela CCD mostraram contaminação por aflatoxinas (B1, B2, G1 e G2) em concentração inferior a 5 µg/kg. O ensaio imunoenzimático (ELISA) mostrou-se mais eficaz para produtos in natura, sendo isolada maior quantidade de aflatoxinas e ocratoxina A no segundo trimestre (julhosetembro). A ocorrência de aflatoxina total foi mais freqüente em produtos oriundos das empresas avícolas das diferentes regiões do estado de Pernambuco e ocratoxina A das empresas produtoras das Regiões Sul e Sudeste do Brasil. MYCOTOXICOLOGICAL RESEARCH OF POULTRY IN NATURE AND PROCESSED PRODUCTS Abstract The occurrence of aflatoxins and ochratoxin A in carcasses, edible viscera and poultry processed products purchased from different industries of various Brazilian regions was evaluated. Different types of products were collected in a trimester period being nine of them in nature and eight processed, for extraction of mycotoxins and quantified through the immunoenzymatic assay (ELISA). Samples with positive results for ELISA were analyzed using thin layer chromatography (TLC). From the total analyzed samples 12% resulted positive, being 10.8% for total aflatoxins, and 1.2% for ochratoxin A. The results obtained by TLC showed aflatoxins contamination (B1, B2, G1 and G2) inferior to 5µg/kg. The immunoenzymatic assay was more effective for in nature products, and the second trimester (July - September) was the period when it was isolated the highest quantity of aflatoxins and ochratoxin A. The occurrence of total aflatoxins was more evident in the poultry industries from different regions of the state of Pernambuco, and ochratoxin A from industries in the South and Southeast regions of Brazil.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".