Applications of electronic nose technology in the tobacco industry: a comprehensive review

Electronic nose (E-nose) technology has emerged as a promising tool for rapid and objective analysis of complex odor profiles in various industries, including the tobacco sector. This review paper provides a comprehensive overview of the applications of E-noses in the tobacco industry, focusing on their potential for enhancing quality control, optimizing blend formulations, monitoring processing conditions, and assuring the quality of finished products. We discuss the basic principles, working mechanisms, sensor types, and data processing techniques employed in E-noses, as well as the challenges and limitations associated with their adoption in the tobacco industry. These challenges include sensor drift, calibration, interference from environmental factors, the complexity of tobacco aroma and flavor profiles, and regulatory and ethical considerations. The paper concludes by highlighting the need for further research and development in E-nose technology, with an emphasis on addressing technical challenges, refining sensor systems, and fostering collaboration among researchers, industry stakeholders, and regulatory agencies. By overcoming these hurdles, E-nose technology has the potential to revolutionize the tobacco industry, ensuring consistent product quality, and meeting the changing demands of consumers while addressing public health concerns and regulatory requirements.