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- Title
Chemosystematic Value of the Essential Oil Composition of Thuja species Cultivated in Poland -- Antimicrobial Activity.
- Authors
Tsiri, Dimitroula; Graikou, Konstantia; Pobłocka-Olech, Loretta; Krauze-Baranowska, Miroslawa; Spyropoulos, Caroline; Chinou, Ioanna
- Abstract
In the framework of the correlation between chemotaxonomy and chemical analysis studies, the chemical composition of the essential oils of four varieties of Thuja species cultivated in Poland - T. occidentalis 'globosa', T. occidentalis 'aurea', T. plicata and T. plicata 'gracialis' - were investigated by GC and GC-MS. Thirty-one compounds were identified from T. occidentalis 'globosa', representing 96.92% of the total oil; twenty-seven from T. occidentalis 'aurea' (94.34%); thirty-one from T. plicata (94.75%); and thirty compounds from T. plicata 'gracialis' (96.36%). The main constituents in all samples were the monoterpene ketones α- and β-thujone, fenchone and sabinene, as well as the diterpenes beyerene and rimuene. The chemosystematic value of the total ketone content of all samples (which varied from 54.30-69.18%) has been discussed and investigated. The constituents, beyerene and the mixture of α- and β-thujone, were isolated from the oils and tested against six Gram-positive and -negative bacteria and three pathogenic fungi. The oils of the two T. plicata species exhibited significant antimicrobial activity, while the mixture of α- and β-thujone showed very strong activity as well.
- Subjects
CHEMOTAXONOMY; THUJA occidentalis; WESTERN redcedar; MONOTERPENES; DITERPENES; MICROORGANISMS; GRAM-positive bacteria; ANTIBIOTICS; TERPENES
- Publication
Molecules, 2009, Vol 14, Issue 11, p4707
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules14114707