2.2.2. Supercritical fluid extraction (SFE)
The SFE experiments with CO2 (purity 99.5%) supplied by Air Liquide (Athens, Greece), were carried out in a bench scale apparatus (SFE-500, Separex, Champigneulles, France) designed to conduct batch experiments. It is composed of a high pressure vessel with a 400 mL extraction basket closed with stainless steel porous disks and two high performance cyclonic separators with an internal volume of 18 mL operating at pressures up to 300 bar. Detailed description of the SFE apparatus is given in a previous publication (Papamichail et al., 2000). In each experiment, approximately 50 g of chopped mastic leaves (fresh or dried) were placed between two layers of glass beads in the extraction container. The glass beads were used in order to distribute the solvent flow uniformly and reduce the dead space in the container and allow the uniform distribution of the solvent flow.
2.2.2. Supercritical fluid extraction (SFE)
The SFE experiments with CO2 (purity 99.5%) supplied by Air Liquide (Athens, Greece), were carried out in a bench scale apparatus (SFE-500, Separex, Champigneulles, France) designed to conduct batch experiments. It is composed of a high pressure vessel with a 400 mL extraction basket closed with stainless steel porous disks and two high performance cyclonic separators with an internal volume of 18 mL operating at pressures up to 300 bar. Detailed description of the SFE apparatus is given in a previous publication (Papamichail et al., 2000). In each experiment, approximately 50 g of chopped mastic leaves (fresh or dried) were placed between two layers of glass beads in the extraction container. The glass beads were used in order to distribute the solvent flow uniformly and reduce the dead space in the container and allow the uniform distribution of the solvent flow.
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