Chemical characterization and antimicrobial activity of rhizome essential oils of very closely allied zingiberaceae species endemic to borneo: Alpinia ligulata K. SCHUM. and Alpinia nieuwenhuizii VAL.

Yusoff, Mashitah Mohd and Ibrahim, Halijah and Hamid, Nurulhusna A. (2011) Chemical characterization and antimicrobial activity of rhizome essential oils of very closely allied zingiberaceae species endemic to borneo: Alpinia ligulata K. SCHUM. and Alpinia nieuwenhuizii VAL. Chemistry & Biodiversity, 8 (5). pp. 916-923. ISSN 1612-1872

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Official URL: https://doi.org/10.1002/cbdv.201000270

Abstract

Two poorly studied, morphologically allied Alpinia species endemic to Borneo, viz., A. ligulata and A. nieuwenhuizii, were investigated here for their rhizome essential oil. The oil compositions and antimicrobial activities were compared with those of A. galanga, a better known plant. A fair number of compounds were identified in the oils by GC‐FID and GC/MS analyses, with large differences in the oil composition between the three species. The rhizome oil of A. galanga was rich in 1,8‐cineole (29.8%), while those of A. ligulata and A. nieuwenhuizii were both found to be extremely rich in (E)‐methyl cinnamate (36.4 and 67.8%, resp.). The three oils were screened for their antimicrobial activity against three Gram‐positive and three Gram‐negative bacteria and two fungal species. The efficiency of growth inhibition of Staphylococcus aureus var. aureus was found to decline in the order of A. nieuwenhuizii>A. ligulata ∼ A. galanga, while that of Escherichia coli decreased in the order of A. galanga>A. nieuwenhuzii ∼ A. ligulata. Only the A. galanga oil inhibited the other bacteria and the fungi tested.

Item Type: Article
Uncontrolled Keywords: (E)-Cinnamate, methyl; Alpinia species; Antimicrobial activity; Essential oils
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Mr. Faizal Hamzah
Date Deposited: 02 Jul 2012 04:35
Last Modified: 15 Nov 2019 05:46
URI: http://eprints.um.edu.my/id/eprint/3424

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