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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.39 [2010] >
IJMS Vol.39(2) [June 2010] >
| Title: | Antibacterial phenolics from the mangrove Lumnitzera racemosa |
| Authors: | Souza, Lisette D’
Wahidulla, Solimabi
Devi, Prabha |
| Keywords: | Lumnitzera racemosa
Antibacterial
Flavonoids
Quercetin
Myricetin |
| Issue Date: | Jun-2010 |
| Publisher: | CSIR |
| Abstract: | Antimicrobial activity
of the methanolic extract and fractions of Lumnitzera racemosa was
evaluated against fungi, virus and pathogenic bacteria. Crude methanolic
extract and n-butanol fraction were ineffective against fungi and virus tested
but exhibited significant bactericidal activity on all the bacteria tested.
Flavonoids, quercetin and myricetin are the main active constituents with
quercitrin, quercetin-3O-hexoside, kaempferol 4′-methyl ether,
kaempferol-3,4′dimethyl ether, and bi-isorhamnetin and
myricetin-7O-methylether(3→8″)quercetin –3O-rhamnoside, which are also
constituents of the active fraction being partly responsible for the observed
activity. Myricetin showed the most potent activity
(MIC – 1.5 mg/ml) against Pseudomonas aeruginosa being markedly
active against others (MIC – 6 mg/ml). Based on the current findings it can be
concluded that this plant has antibacterial activity. |
| Page(s): | 294-298 |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Source: | IJMS Vol.39(2) [June 2010]
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