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The chemical compositions and antimicrobial activities of the essential oils from two Turkish endemic species, Prangos platychlaena and P. uechtritzii, were investigated. Hydrodistillation was used to isolate the essential oils, and the chemical analyses were performed by GC and GC-MS. The antimicrobial activity was tested by the microdilution technique against Staphylococcus aureus, Enterococcus faecalis, Bacillus subtilis, Escherichia coli, Pseudomonas aeruginosa, Salmonella typhimurium, Candida albicans, C. krusei, and C. tropicalis. δ-3-Carene (3.39%) and p-cymene (3.38%) were identified as major components in P. platychlaena, and α-pinene (40.82%), nonene (17.03%), β-phellandrene (11.14%), δ-3-carene (7.39%), and p-cymene (4.90%) in P. uechtritzii. [ABSTRACT FROM AUTHOR]

The article presents a study on the essential oil composition of Achillea boissieri specie. It mentions that the study involves collecting plant materials and specimens from Elbistan, Turkey that was placed at the herbarium of Inonu University in Malatya, Turkey. It states that the essential oils of the specimen were analyzed using gas chromatography-mass spectrometry (GC-MS). Furthermore, a table that lists the composition of the essential oil of Achillea boisieri is presented.