title: Ultrasound accelerated esterification of bile acids.
abstract: In this study power ultrasound accelerated esterification reactions of some model substances and bile acids were done. In the model reactions the best result was 19-fold increase in the reaction rate when using ultrasound and the temperature was allowed to rise during the irradiation. In the case of bile acid methyl esters a clear increase in the reaction rates was also observed by ultrasonic irradiations.
authors.affiliation: VTT Processes, PO Box 1603, FIN-40101 Jyväskylä, Finland. antti.gronroos@vtt.fi
authors.forename: Antti
authors.initials: A
authors.lastname: Grönroos
authors.forename: Nina
authors.initials: N
authors.lastname: Aittokallio
authors.forename: Erkki
authors.initials: E
authors.lastname: Kolehmainen