The use of stable isotope techniques in egg authentication schemes: A review

The popularity of eggs is increasing worldwide, increased production is expected over the next few years, and it appears that protein production from eggs is more sustainable than other protein rich food production, such as beef. Recall of eggs has also occurred due to health scares. Hence, systems/tools are needed to ensure and guarantee egg traceability/authenticity. This review focuses on the current state of knowledge with regards to the use of stable isotope techniques for egg authentication schemes. A brief overview of egg production, usage, environmental benefits, traceability, and of alternative analytical methods for egg identification will also be provided.