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.

M. M., Yusoff and Halijah, Ibrahim and Nurulhusna, Abdul Hamid (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 and Biodiversity, 8 (5). pp. 916-923. ISSN 1612-1872 (print), 1612-1880 (online). (Published)

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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
Additional Information:	3 Citation. Impact Factor: 1.804 Indexed in Pubmed/MEDLINE
Uncontrolled Keywords:	Alpinia species; Essential oils; (E)-Cinnamate, methyl; Antimicrobial activity
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Faculty/Division:	Faculty of Industrial Sciences And Technology
Depositing User:	Prof. Dr. Mashitah Mohd Yusoff
Date Deposited:	05 Mar 2014 03:55
Last Modified:	27 Jul 2018 03:40
URI:	http://umpir.ump.edu.my/id/eprint/4733
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