Dynamic headspace analysis of the light-induced controlled release of perfumery aldehydes and ketones from ?-keto esters in bodycare and household applications

Abstract

The controlled release of citronellal and menthone from α-keto esters was tested in different household and bodycare applications by photochemical irradiation of these esters with artificial light sources or natural sunlight. Quantitative dynamic headspace analyses carried out with different application bases, such as all-purpose cleaners and hair conditioners, as well as investigations on different supports, such as glass surfaces, hair or cotton, clearly showed that a sufficient amount of perfume was released in all cases, thus allowing a very broad use of this principle as an efficient delivery system for the controlled release of perfumery chemicals. In addition, the quantitative dynamic headspace analyses carried out in these studies help to elucidate the kinetics of perfume release tested in the different applications for a large variety of compounds. Copyright © 2000 John Wiley & Sons, Ltd.