2. Materials and methods
2.1. Plant material and chemicals
Rosemary (R. officinalis L.) was provided by Naturex. The batch used was collected in Morocco in 2013 and previously hydrodistillated by the supplier. In this study, only leaves were used and were ground for 10 s before extraction using a coffee grinder (Severin, France). Initial moisture content was 8.93 ± 0.01% and initial content in rosemary in RA and CA is 0.21% and 1.70% respectively.
For the extraction solvent, only demineralized water and absolute ethanol (ACS reagent, VWR, France) were used.