The enhancement and scale up of the extraction of anti-oxidants from Rosmarinus officinalis using ultrasound

The aim Of this Study was to examine the effect Of ultrasound on the solvent extraction of anti-oxidants from the rosemary herb and to scale Up the ultrasonic extraction process. The anti-oxidants of interest were identified using HPLC. Results indicated that, compared with conventional solvent extraction, the use Of ultrasound gives a more effective extraction at lower temperatures with less dependence on the extraction solvent employed and that scale up of the process is possible. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.