DNA barcoding reveals mislabeling and commercial fraud in the marketing of fillets of the genus
| Autor: | Iracilda Sampaio, Soraia Costa de Carvalho, Simoni Santos |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Brachyplatystoma rousseauxii Zoology Species substitution Biology DNA barcoding Food science 03 medical and health sciences 0302 clinical medicine Commercial fraud Species level Genus Industry lcsh:Social sciences (General) lcsh:Science (General) Multidisciplinary Food analysis Ethical issues Fish products biology.organism_classification Processed fish 030104 developmental biology Brachyplatystoma Brachyplatystoma vaillantii Fish lcsh:H1-99 030217 neurology & neurosurgery lcsh:Q1-390 Research Article |
| Zdroj: | Heliyon Heliyon, Vol 6, Iss 9, Pp e04888-(2020) |
| ISSN: | 2405-8440 |
| Popis: | The substitution and mislabeling is facilitated by the processing of fish products. We employed a DNA barcoding to authenticate fillets labeled as “dourada” (Brachyplatystoma rousseauxii), and “piramutaba” (Brachyplatystoma vaillantii) marketed in the Brazil. A 615 bp of the Cytochrome oxidase subunit I (COI) was sequenced from 305 fillets and subsequently identified to species level by querying public databases and sequences of reference species. The results revealed a global mean substitution rate of 17%. The highest substitution rate was detected in “dourada” (26%), the most valuable species, followed by “piramutaba” (9%). The most cases of substitutions were by species of lower commercial value, suggesting fraud aimed at increased profits. Therefore, we suggest the improvement of food-labeling regulation, continued inspection, as well as the adoption of the DNA barcode for the molecular authentication of processed fish to prevent substitution of these products in Brazil. Food science; Food analysis; Industry; DNA barcoding; Species substitution; Processed fish; Commercial fraud; Ethical issues |
| Databáze: | OpenAIRE |
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