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JSIR Vol.71 [2012] >
JSIR Vol.71(11) [November 2012] >
| Title: | Comparison of Chemical constituents and antibacterial activities and antioxidant activities of the essential oil from leaves and fruits of Bridelia retusa (L.) A. Juss. |
| Authors: | Sanseera, Duangsuree
Niwatananun, Wirat
Liawruangrath, Saisunee
Baramee, Aphiwat
Khantawa, Banyong
Pyne, Stephen G.
Liawruangrath, Boonsom |
| Keywords: | GC-MS
Essential oil
Bridelia retusa (L.) A. Juss.
Antibacterial
Antioxidant activities |
| Issue Date: | Nov-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The
essential oils from the leaves and fruits of Bridelia
retusa (L.) A.Juss. were isolated by
hydrodistillation. The essential oils were obtained in 0.0013% yield as a pale
yellow liquid and 0.0026% yield as a violet-light brown liquid for the leaf oil
and fruit oil respectively. The composition of each essential oil was analysed
by means of GC-(FID) and GC-MS. Eleven constituents accounting for 48.77% of total
leaves oil were identified. The most abundant compound was phytol (33.4%),
followed by phthalic acid (5.2%), 6, 13-dimethoxy-2, 3, 9,
10-tetramethylpentacene-1, 4, 8, 11-tetrone (3.4%), heptacosane (2.3%) and
nonacosane (1.2%). Sixteen constituents accounting for 51.8% of total fruits
oil were identified. The major components were dibutyl sebacate (25.6%), phytol
isomer (4.8%), diacetin (4.3%), tricosane (3.9%), isophytol (2.7%), erucylamide
(2.5%), phthalic acid (1.9%), hexadecanoic acid (1.5%) and eicosane (1.2%). The
essential oils exhibited strong antioxidant activities with the IC50
values of 1.12±0.0010 mg/mL and 1.79±0.0005 mg/mL for the leaf and
fruit essential oils respectively, by using the ABTS radical cation scavenging
assay. The antibacterial activity of the essential oils was performed by using
the standard disc diffusion method. The results revealed that the leaf and
fruit essential oils of B. retusa were
active against Staphylococcus aureus, Escherichia coli and
Pseudomonas aeruginosa with the minimum
inhibitory concentrations (MICs) between 20-50 mg/mL.
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| Page(s): | 733-739 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.71(11) [November 2012]
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