The contents of the phenolic compounds can be summarizing as following: Juniperus phoenicea leaves :4,5-Dicaffeoly guinic acid (0.003047 mg/g), Cinnamic acid (0.00000696 mg/g), Galic acid (0.0161mg/g) Geraniol (0.000644 mg/g), Phloridzin (0.00000297 mg/g), Quercetin (0.02033 mg/g) and Catecin (0.0424 mg/g). On the other side in Juniperus phoenicea fruits: 3,4-Dicaffeoly guinic acid (0.00115 mg/g), Galic acid (0.0000975 mg/g and Catecin (0.0424 mg/g). While in Quercus coccifera plan : The concentrations were fluctuated as following: Quercus coccifera leaves: Chlorogeneic acid (0.0115 mg/g), 3,4- Dicaffeoly guinic acid (0.129 mg/g), 3,5-Dicaffeoly guinic acid (0.309 mg/g), 4,5- Dicaffeoly guinic acid (0.0161 mg/g), 2,5-dihydroxy Benzoic acid (0. 0000589mg/g), and Galic acid (0.166mg/g). While in Quercus coccifera fruits the contents were recorded as following: (0.0197 mg/g), (0.102 mg/g), (0.132 mg/g), (0.205 mg/g), and cinnamic acid (0.000698mg/g).
Key words: Medicine plants , Phenolic compounds, Libya.