A scientific study of 100 “single species” sausage, such as beef, pork, chicken, turkey and others, was conducted in Canada. It found that 14% of sausages were mislabeled as single species but contained additional undeclared species. There is some encouraging news, however: While this is still an issue that requires monitoring, 14% mislabeling is a lower rate than detected in a previous study conducted a year ago. The samples were tested at the molecular level with DNA Barcoding and ddPCR (Droplet Digital Polymerase Chain Reaction) to detect the species via their DNA.
Shehata, H.R., et al. (Jan 15, 2019). “Re-visiting the occurrence of undeclared species in sausage products sold in Canada”. Science Direct. Retrieved from https://www.sciencedirect.com/science/article/pii/S0963996919300304