Application of biosensors for detection of food-borne bacterial pathogens

Background and Aim : Owing to the green revolution in the past years, concerns for food safety and quality has increased importance. Nevertheless, the likelihood of contaminated food has also enhanced by bacterial food-borne pathogens and toxins. Raw food and food products are the potent transmitting agent of more than ۲۵۰ known diseases. This review indicate the application of biosensors for detection of food-borne bacterial pathogens. Methods : The data of this abstract was collected based on ISI papers indexed in Elsevier and Springer publications. Results : Most important food-borne pathogens includes mycotoxins, exotoxins and enterotoxins from Escherichia coli O۱۵۷:H۷, Staphylococcus aureus, Shigella spp., Bacillus anthracis, Campylobacter jejuni, Clostridium perfringens, Clostridium botulinum, Salmonella spp., Listeria monocytogenes, Vibrio cholera, Yersinia enterocolitica, and Coxiella burnetii. Traditional methods for detection of bacterial pathogens are very sensitive and inexpensive but they are too laborious, time-consuming, and merely depend on the properties of bacteria to form frequent clones. Hence, there is an urgent need for the development of rapid, competent, and reliable approaches for direct detection and identification of food-borne microorganisms. Biosensors act as an indicator of biological molecules with the required features of on spot and multiple analyses systems. The most important microbe-based biosensing methods for detection of microorganisms including optical, surface plasmon resonance, amperometric, potentiometric, whole-cell, electrochemical, impedimetric, piezoelectric approaches. Conclusion : It can be concluded that foreseeable future trends in biosensor research activities for paving the way for fresh and healthy food proposal.

کلیدواژه ها:

Biosensors ، Food-borne pathogens