Gustatory-based electronic tongues

The use of electronic tongues for taste assessment has been popular since their development almost 30 years ago. Despite the importance of evaluating the taste of food and medicine for both industries and consumers, there are no instrumental methods for this assessment. Sensory panels are still relied upon, but they are costly, time-consuming, and subject to variation. Electronic tongues were designed based on the gustatory systems of mammals and were expected to fill this gap as bioinspired analytical instruments. This chapter provides an overview of electronic tongue sensor systems used for taste assessment, focusing on key accomplishments in the field. Additionally, it explores the shift from bioinspired to biomimetic multisensor systems and provides a brief review of future perspectives on the applications of electronic tongues for taste assessment.