Methanolic activities of selected weeds on bacteria isolated from Macrobrachium rosenbergii larvae

Methanolic activities of selected weeds on bacteria isolated from Macrobrachium rosenbergii larvae

The methanolic crude extracts of three weeds, Soapbush or Koster's Curse (Clidemia hirta), Spanish Flag or West Indian Lantana (Lantana camara), and Indian rhododendron (Melastoma malabathricum) were studied for their antibacterial properties. The crude extracts were tested against ten bacteria...

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Published in:Wētchasān sattawaphāet Vol. 41; no. 4; p. 535
Main Authors: Musa, Najiah, Musa, Nadirah, Ibrahim, Wan Nurhafizah, Shariat, Mohd Zahrol Ariff, Zamani, Arief Izzairy, Abdullah, Muhd Ranzi, Wee, Tee Lea, Marip, Mariam, Razak, Laith Abdul, Soh, Amar Sakhawi Awang
Format: Journal Article
Language:English
Published: Bangkok Chulalongkorn University, Faculty of Veterinary Science 01-12-2011
Subjects:
Antibacterial properties
Antimicrobial properties
Antioxidants
Bacteria
Bacterial infections
Chemical composition
Clidemia hirta
Drug plants
Flavonoid
Flavonoids
Indian rhododendron
Isolation
Koster's curse
Lantana camara
Larvae
Macrobrachium rosenbergii
Melastoma malabathricum
Melastomataceae
Methanol
Methanolic extraction
Microscopy
Phytochemical analysis
Plant extracts
Saponin
Saponins
SEM
Soapbush
Spanish flag
Tannin
Tannins
Terpenoid
Terpenoids
Verbenaceae
Veterinary medicine
Vibrio
Vibrio alginolyticus
Vibrio anguillarum
Weeds
West Indian Lantana
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Summary:The methanolic crude extracts of three weeds, Soapbush or Koster's Curse (Clidemia hirta), Spanish Flag or West Indian Lantana (Lantana camara), and Indian rhododendron (Melastoma malabathricum) were studied for their antibacterial properties. The crude extracts were tested against ten bacterial isolates from giant freshwater prawn larvae, Macrobrachium rosenbergii. Clidemia hirta extract showed the best MIC and MBC values against Vibrio alginolyticus which were 0.39 mg/ml and 6.25 mg/ml, respectively. Following that, three lowest concentration of methanolic crude extracts; 0.195 mg/ml, 0.39 mg/ml, and 0.78 mg/ml, were added to V. alginolyticus culture and observed for morphological changes via Scanning Electron Microscope (SEM). The cell wall of V. alginolyticus was disrupted at 0.195 mg/ml of methanolic crude extract. Antioxidant activities of C.hirta was also studied qualitatively and quantitatively and compared to the standard reference, Vitamin C. Thin Layer Chromatography (TLC) performed on the C. hirta extract indicated the presence of eight separation compound bands. The phytochemical of C. hirta extract was positive for tannin, flavonoid, saponin, terpenoid and negative for steroids compounds. [PUBLICATION ABSTRACT]
Bibliography:F60
L73
http://www.vet.chula.ac.th/~tjvm/browse.htm
ISSN:0125-6491