Bioactive natural products from terrestrial species
2012
Atwi, M.
Plants are able to synthesize an immense number of bioactive natural products. The investigation of secondary metabolites in plant sources may lead to the discovery of new products with added value and important biological activity. It may also lead to know-how for sustainable, green exploitation of them as renewable sources of already known and important compounds. The aim of this study was the detection-identification of added value metabolites through the use of inexpensive renewable sources. The study has focused on Salvia pomifera. subsp. pomifera, Salvia sclarea, Salvia fruticosa and Cistus creticus subsp.creticus plant species due to their abundance in various places in Crete. The plant tissues were extracted by different solvents and assessed for their essential oil composition and polyphenolic content. The essential oil of the plants was obtained by Likens-Nickerson distillation and then analyzed by gas chromatography - mass spectrometry. The main constituents for S. pomifera subsp. pomifera were cis-thujone (37.63 percent), trans-thujone (32.97 percent) and trans-caryophyllene (8.31 percent). The oil of S. sclarea was dominated by germacrene D (10.07 percent), geranyl linalool isomer (2.69 percent), trans-beta-caryophyllene (2.65 percent) and isophytol (1.46 percent). Veridiflorol (13.36 percent), manool (7 percent), viridiflorene (6.05 percent), alpha-terpineol (5.26 percent) and trans-beta-caryophyllene (4.77 percent) were the major constituents of S. fruticosa essential oil.
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