REACTIONS IN SUPERCRITICAL CARBON DIOXIDE EFFICIENT PRODUCT FRACTIONATION FOLLOWING ENZYMATIC AROMA SYNTHESIS

摘要

The efficiency of supercritical CO_2 for enzymatic synthesis of short chain geranylesters (geranyl butyrate and geranyl caprylate) is already shown. These aroma substances are used as natural aroma in food stuff industry. Based on these results this paper deals with the fractionated separation of the aroma compounds following the reaction step. A simple change of pressure and temperature of CO_2 in the down-stream phase leads to high concentrated products, so that SC-CO_2 can act as well as reaction as separation solvent for this process.