Abstract
Rapid and accurate analysis of food produce is essential to screen for species that may cause significant health risks like bacteria, pesticides and other toxins. Considerable developments in analytical techniques and instrumentation, for example chromatography, have enabled the analyses and quantitation of these contaminants. However, these traditional technologies are constrained by high cost, delayed analysis times, expensive and laborious sample preparation stages and the need for highly-trained personnel. Therefore, emerging, alternative technologies, for example biosensors may provide viable alternatives. Rapid advances in electrochemical biosensors have enabled significant gains in quantitative detection and screening and show incredible potential as a means of countering such limitations. Apart from demonstrating high specificity towards the analyte, these biosensors also address the challenge of the multifactorial food industry of providing high analytical accuracy amidst complex food matrices, while also overcoming differing densities, pH and temperatures. This (public and Industry) demand for faster, reliable and cost-efficient analysis of food samples, has driven investment into biosensor design. Here, we discuss some of the recent work in this area and critique the role and contributions biosensors play in the food industry. We also appraise the challenges we believe biosensors need to overcome to become the industry standard.
Highlights
Food Safety The issue of food safety has emerged as increasingly significant public concerns worldwide due to subquality foods being linked to increased morbidity, mortality, human suffering, and economic burden[1]
Are high, food manufacturers have to meet the need of modern consumers to make informed purchase decisions and their preference for food products with high quality and affordable price, and at the same time, must maintain high-quality standards and assurance of product safety[2]
Matching the end-user compliance with regulatory guidelines on food quality, the instrumentation and scientific industries have responded with continuous improvement and development of analytical methodologies of many analytical methods, liquid chromatography has acquired a role of great importance in a majority of food analysis, as witnessed by the wide range of applications that can be found throughout the whole literature[3,4,5]
Summary
Food Safety The issue of food safety has emerged as increasingly significant public concerns worldwide due to subquality foods being linked to increased morbidity, mortality, human suffering, and economic burden[1]. Biomimetic sensors, such as electronic tongues and electronic noses are based on biosensor technologies[115] and we expect that their exploitation of arrays of low specificity sensors capable of detecting multiple signals will allows a more complete analysis of food quality Inspiration for these developments and applications comes from the electronic tongues that form the basis for food authenticity and safety sensor systems[116,117], or electronic noses that can detect unique volatile compounds within the tea, wine, coffee, and spice industries[118,119,120]. The opportunity afforded through biosensing, in situ and safety analysis at all levels of the supply chain, as well as authenticity and quality analysis by the consumers themselves, make biosensors food productions tool of the future
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