Use of optical systems in monitoring of bioreactors

Recent progress in the development of new optical sensors has led to applications which address long standing needs in bioreactors: on-line monitoring of critical parameters associated with microbial metabolism and it`s control. The use of such sensors has expanded the range of new control strategies involving fuzzy logic control. The use of optical sensors has led to on-line monitoring of non-homogenities and steps to minimize them. This is illustrated by the use of optical sensors in the monitoring of cell mass in yeast fermentations.