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Essential oils from the leaves of  Fokienia hodginsii  (Dunn) A. Henry &amp; H. H. Thomas and  Amentotaxus argotaenia  (Hance) Pilg. from Vietnam were obtained by hydrodisitllation and the chemical components determined by gas chromatography (GC) and gas chromatography coupled with mass spectrometry (GC/MS). Also the microdilution broth assay was used to test the antimicrobial activity of the essential oil. The yield of the essential oil was 0.22% (v/w). The major components of  F. hodginsii  were α-pinene (73.2%), limonene (10.3%), myrcene (4.1%) and β-pinene (2.6%).  Amentotaxus argotaenia  feature essential oil with α-pinene (20.4%), δ-cadinene (7.8%) and β-selinene (7.6%) as main compounds. The leaf essential oil of  F. hodginsii  displayed potent antimicrobial activity towards the Gram-positive microorganisms of  Enterococcus faecalis  ATCC 29212 and  Bacillus cereus  ATCC 14579 with minimum inhibitory concentration (MIC) values of 32.0 μg/mL and 64.0 μg/mL, respectively. The essential oil of  A. argotaenia  showed activity against  E. faecalis  ATCC 29212,  Staphylococcus aureus  ATCC 25923 and  Bacillus cereus  ATCC 14579 with MIC value of 64.0 μg/mL; as well as  Pseudomonas aeruginosa  ATCC 27853 (MIC, 32.0 μg/mL). Additionally, the essential oil of  A. argotaenia  exhibited the most anti-candidal action towards  Candida albicans  ATCC 10231 with MIC value of 32.0 μg/mL. The chemical constituents and antimicrobial activity of the essential oils of  F. hodginsii  were being reported for the first time.

journal of essential oil bearing plants

Essential Oils from the Leaves of  Fokienia hodginsii  (Dunn) A. Henry &amp; H. H. Thomas and  Amentotaxus argotaenia  (Hance) Pilg. and Their Antimicrobial Activity