Chemical composition, antioxidant and antibacterial properties of the essential oils of Shorea acuminata (Dipterocarpaceae)

Norhayati Muhammad, Nazlina Ibrahim, Nor Azah Mohd Ali, Laily B. Din, Zuriati Zakaria, Wan Yaacob Wan Ahmad, Noramly Muslim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Chemical composition, antioxidant and antibacterial properties of the essential oils from the stem and leaves of Shorea acuminata Dyer were investigated. The yield of the hydro-distilled essential oils obtained from stem and leaves were 0.40 % and 0.02 %, respectively. The main groups of compound found in the essential oils were sesquiterpene hydrocarbons (64.8 % and 33.4 %) and oxygenated sesquiterpenes (19.2 % and 51.7 %), which accounted for 85.6 % of the stem oil and 85.8 % of the leaf oil. Caryophyllene oxide (36.0 %) and β-caryophyllene (13.9 %) were found to be the major constituents in the leaves, whereas germacrene D (35.0 %) was the major constituent in the stem. The essential oils from the stem and leaves exhibited good antioxidant activity as measured by DPPH free radical-scavenging ability with EC 50 of 0.72 mg/ml and 0.64 mg/ml respectively. In β-carotene/linoleic acid assay, the stem and leaves essential oil exhibited 88.78 % and 89.27 % antioxidant activity respectively at 9 mg/ml which was comparable to that of BHT (98.31 %). The antibacterial test results showed that the leaf oil of S. acuminata had low antibacterial activity against MRSA and S. aureus and no antibacterial activity against S. typhimurium and E. coli. The stem oil was inactive against all bacteria tested.

Original languageEnglish
Pages (from-to)708-716
Number of pages9
JournalJournal of Essential Oil-Bearing Plants
Volume14
Issue number6
Publication statusPublished - Nov 2011

Fingerprint

Dipterocarpaceae
Volatile Oils
Antioxidants
Oils
Chemical analysis
Sesquiterpenes
Butylated Hydroxytoluene
Scavenging
Linoleic Acid
Carotenoids
Methicillin-Resistant Staphylococcus aureus
Hydrocarbons
Escherichia coli
Free Radicals
Assays
Bacteria

Keywords

  • β-carotene-linoleic acid
  • Antibacterial activity
  • Antioxidant activity
  • DPPH
  • Essential oil
  • Shorea acuminata

ASJC Scopus subject areas

  • Organic Chemistry
  • Biochemistry
  • Analytical Chemistry

Cite this

Chemical composition, antioxidant and antibacterial properties of the essential oils of Shorea acuminata (Dipterocarpaceae). / Muhammad, Norhayati; Ibrahim, Nazlina; Mohd Ali, Nor Azah; Din, Laily B.; Zakaria, Zuriati; Wan Ahmad, Wan Yaacob; Muslim, Noramly.

In: Journal of Essential Oil-Bearing Plants, Vol. 14, No. 6, 11.2011, p. 708-716.

Research output: Contribution to journalArticle

Muhammad, Norhayati ; Ibrahim, Nazlina ; Mohd Ali, Nor Azah ; Din, Laily B. ; Zakaria, Zuriati ; Wan Ahmad, Wan Yaacob ; Muslim, Noramly. / Chemical composition, antioxidant and antibacterial properties of the essential oils of Shorea acuminata (Dipterocarpaceae). In: Journal of Essential Oil-Bearing Plants. 2011 ; Vol. 14, No. 6. pp. 708-716.
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