Abstract:

Biological and chemical pollution in foodstuffs is becoming an increasingly important issue in the field of food
safety. As a result, higher analytical requirements are needed for the detection of contaminants in foods. Biosensors are
designed based on specific biochemical reactions mediated by isolated enzymes, immune preparations, tissues and organelles
or whole cells to detect biological and chemical compounds usually by electrical, thermal or optical signals. Some recent
applications of biosensors in the detection of containments in foods, such as microorganisms, toxins, pesticides, heavy
metals and illegal additives are reviewed in this article. In addition, some key points and future trends in the application of
biosensors for food safety detection are also discussed.

Key words: biosensor, food containments, food safety, pesticide residues, biotoxin