Antimicrobial properties of local vegetable amaranth (Amaranthus Gangeticus)
Amaranthus gangeticus have the potential to be used for medicinal purposes due to its nutrient composition. It is a leafy edible vegetable amaranth consumed worldwide. The aim of this study was to assess the antimicrobial activities of local edible Amaranthus gangeticus. The antibacterial activit...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/12930/ http://irep.iium.edu.my/12930/ http://irep.iium.edu.my/12930/1/2008_iCAST_Kamarul.pdf |
| Summary: | Amaranthus gangeticus have the potential to be used for medicinal purposes due to its
nutrient composition. It is a leafy edible vegetable amaranth consumed worldwide. The aim
of this study was to assess the antimicrobial activities of local edible Amaranthus gangeticus.
The antibacterial activities of Amaranthus gangeticus and the type of bacteria sensitive to
Amaranthus gangeticus were determined. The A. gangeticus leaves and stems were extracted
by methanol and phosphate buffer saline (PBS) respectively and tested for its in vitro
antimicrobial properties on Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa,
Staphylococcus aureus, Candida albicans, Cryptococcus neoformans and Tricophyton
mentagophytes. The paper disc diffusion method and agar well diffusion method were used to
determine the inhibitory effects of both leaves and stem extracts of A. gangeticus on test
microorganisms. The preliminary results of disc diffusion test revealed that the leaves extract
of A. gangeticus produced a small zone of inhibition on P. aeruginosa, with the zone of
inhibition of 5 mm, 7 mm and 8 mm for the concentration of 100 mg/ml, 200 mg/ml and 400
mg/ml respectively. Most of the test microorganisms are found to be resistant against extracts
from A. gangeticus with only P. aeruginosa showed positive result. Further study needs to be
performed to investigate the antimicrobial properties of A. gangeticus using agar well
diffusion method for overall comparison of antimicrobial properties of both leaves and stems
extracts of A. gangeticus. |
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