Increased consumption of processed foods, globalization, and spiraling food prices have led to many challenges such as food quality, food safety, food adulteration, and food contamination. Hence, there is a need for simple, affordable, field applicable sensor systems with sufficient analytical performance for the evaluation of food safety and quality. Biosensors are capable of fulfilling the above requirements, and with the advent of nanotechnology, their scope for application in multiple fields has been revived