The sensors for vision, hearing and touch have been developed for several years. The need for sensors capable of mimicking the senses of smell and taste have been felt recently in food industry, environmental monitoring and several industrial applications. By intelligent integration of multitudes of technologies like chemometrics, microelectronics and advanced soft computing, human olfaction has been successfully mimicked by such new techniques called machine olfaction. Implementation of electronic nose which reduce the cost of maturity evaluation, help determining optimum maturity based on...