Journal article
Composition and antimicrobial activity of the essential oils from invasive species of the Azores, Hedychium gardnerianum and Pittosporum undulatum
Phytochemistry (Oxford), Vol.64(2), pp.561-565
2003
Handle:
https://hdl.handle.net/2376/118237
PMID: 12943775
Abstract
The major terpenoid components of the essential oils of the invasive plant species,
Hedychium gardnerianumn leaf and floral tissues and
Pittosporum undulatum leaf tissues were identified. Essential oils from
H. gardnerianumn were active against
Staphylococcus aureus,
S. epidermis, whereas
P. undulatum oils had antithrombin activity.
The compositions of the essential oils from the leaves and flowers of
Hedychium gardnerianum and from the leaves of
Pittosporum undulatum growing on San Miguel Island (Azores) were investigated, and the compounds were identified by GC–MS analyses. The oils in the leaves and flowers of
H. gardnerianum were rich in α-pinene, β-pinene and α-cadinol, whereas that from
P. undulatum was found to contain monoterpenes, sesquiterpenes, diterpenes and alkanes, of which the sesquiterpenes, calamenene (41.4%), farnesol (10.9%), spathulenol (5.6%) and β-selinene (5.2%) and the diterpene (8β,13β)-kaur-16-ene (10.7%) were the major components. Their potential antimicrobial activities were tested against
Staphylococcus aureus,
S. epidermis and
Pseudomonas aeruginosa, and those with the highest activities against
S. aureus and
S. epidermis were from
H. gardnerianum; none had activity against
P. aeruginosa. Additionally, the essential oils from
Pittosporum undulatum had good antithrombin activity whereas that from
H. gardnerianum did not.
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Details
- Title
- Composition and antimicrobial activity of the essential oils from invasive species of the Azores, Hedychium gardnerianum and Pittosporum undulatum
- Creators
- Jorge R Medeiros - Centro de Investigação de Recursos Naturais, Universidade dos Açores, 9502 Ponta Delgada, Açores, PortugalLurdes B Campos - Instituto de Inovação Tecnológica dos Açores, Estrada de São Gonçalo, 9504-540 Ponta Delgada, Açores, PortugalSusana C Mendonça - Instituto de Inovação Tecnológica dos Açores, Estrada de São Gonçalo, 9504-540 Ponta Delgada, Açores, PortugalLaurence B Davin - Institute of Biological Chemistry, Washington State University, PO Box 646340, Pullman, WA 99164-6340, USANorman G Lewis - Institute of Biological Chemistry, Washington State University, PO Box 646340, Pullman, WA 99164-6340, USA
- Publication Details
- Phytochemistry (Oxford), Vol.64(2), pp.561-565
- Academic Unit
- Biological Chemistry, Institute of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900547908701842
- Language
- English
- Resource Type
- Journal article