Antimicrobial producing microbes isolated from soil samples collected from Nanga Merit Forest in Sarawak, Malaysian Borneo

This study was carried out to screen for potential antimicrobial producing microbes from soil samples collected from Nanga Merit forest. After primary and secondary screening, one bacterial isolate (B17) and four fungal isolates (F10, F11, F14 and F26) produced antimicrobial activity against Staph...

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Main Authors: Samuel, Lihan, Chai, Sin Lin, Ismail, Ahmad, Fazia, Mohamad Sinang
Format: Article
Language:English
Published: Pelagia Research Library 2014
Subjects:
Online Access:http://ir.unimas.my/id/eprint/10097/
http://ir.unimas.my/id/eprint/10097/1/Fazia.pdf
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author Samuel, Lihan
Chai, Sin Lin
Ismail, Ahmad
Fazia, Mohamad Sinang
author_facet Samuel, Lihan
Chai, Sin Lin
Ismail, Ahmad
Fazia, Mohamad Sinang
author_sort Samuel, Lihan
building UNIMAS Institutional Repository
collection Online Access
description This study was carried out to screen for potential antimicrobial producing microbes from soil samples collected from Nanga Merit forest. After primary and secondary screening, one bacterial isolate (B17) and four fungal isolates (F10, F11, F14 and F26) produced antimicrobial activity against Staphylococcus aureus, Salmonella typhi, Escherichia coli and Enterobacter aerogenes. The minimal inhibition concentration (MIC) of the methanol extract from isolate B17 against the four tested bacteria was determined by disk-diffusion and agar well diffusion methods. The MIC values when tested against S. aureus, S. typhi, and E. coli were 25μg/μl whereas the MIC value was 12.5μg/μl when tested against E. aerogenes. In the agar well diffusion method, the respective MIC values were < 1.5625μg/μl for S. aureus, 12.5 μg/μl for both the S. typhi and E. coli, and 9.375 μg/μl for E. aerogenes. Besides, extracts from F26 cultivated on PDA, CDA, and V8 juice agar showed weak activity against E. aerogenes and was not tested further for its MIC values. The extract from B17 also exhibit antifungal activity when tested against test fungus (Fusarium sp.). Fungal isolates (F10, F11, F14 and F26) cultivated on PDA exhibited great antifungal activities.
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spelling unimas-100972021-06-29T17:21:22Z http://ir.unimas.my/id/eprint/10097/ Antimicrobial producing microbes isolated from soil samples collected from Nanga Merit Forest in Sarawak, Malaysian Borneo Samuel, Lihan Chai, Sin Lin Ismail, Ahmad Fazia, Mohamad Sinang GE Environmental Sciences This study was carried out to screen for potential antimicrobial producing microbes from soil samples collected from Nanga Merit forest. After primary and secondary screening, one bacterial isolate (B17) and four fungal isolates (F10, F11, F14 and F26) produced antimicrobial activity against Staphylococcus aureus, Salmonella typhi, Escherichia coli and Enterobacter aerogenes. The minimal inhibition concentration (MIC) of the methanol extract from isolate B17 against the four tested bacteria was determined by disk-diffusion and agar well diffusion methods. The MIC values when tested against S. aureus, S. typhi, and E. coli were 25μg/μl whereas the MIC value was 12.5μg/μl when tested against E. aerogenes. In the agar well diffusion method, the respective MIC values were < 1.5625μg/μl for S. aureus, 12.5 μg/μl for both the S. typhi and E. coli, and 9.375 μg/μl for E. aerogenes. Besides, extracts from F26 cultivated on PDA, CDA, and V8 juice agar showed weak activity against E. aerogenes and was not tested further for its MIC values. The extract from B17 also exhibit antifungal activity when tested against test fungus (Fusarium sp.). Fungal isolates (F10, F11, F14 and F26) cultivated on PDA exhibited great antifungal activities. Pelagia Research Library 2014 Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/10097/1/Fazia.pdf Samuel, Lihan and Chai, Sin Lin and Ismail, Ahmad and Fazia, Mohamad Sinang (2014) Antimicrobial producing microbes isolated from soil samples collected from Nanga Merit Forest in Sarawak, Malaysian Borneo. European Journal of Experimental Biology, 4 (1). pp. 494-501. ISSN 2248 –9215 https://www.researchgate.net/publication/262415604_Antimicrobial_producing_microbes_isolated_from_soil_samples_collected_from_Nanga_Merit_Forest_in_Sarawak_Malaysian_Borneo
spellingShingle GE Environmental Sciences
Samuel, Lihan
Chai, Sin Lin
Ismail, Ahmad
Fazia, Mohamad Sinang
Antimicrobial producing microbes isolated from soil samples collected from Nanga Merit Forest in Sarawak, Malaysian Borneo
title Antimicrobial producing microbes isolated from soil samples collected from Nanga Merit Forest in Sarawak, Malaysian Borneo
title_full Antimicrobial producing microbes isolated from soil samples collected from Nanga Merit Forest in Sarawak, Malaysian Borneo
title_fullStr Antimicrobial producing microbes isolated from soil samples collected from Nanga Merit Forest in Sarawak, Malaysian Borneo
title_full_unstemmed Antimicrobial producing microbes isolated from soil samples collected from Nanga Merit Forest in Sarawak, Malaysian Borneo
title_short Antimicrobial producing microbes isolated from soil samples collected from Nanga Merit Forest in Sarawak, Malaysian Borneo
title_sort antimicrobial producing microbes isolated from soil samples collected from nanga merit forest in sarawak, malaysian borneo
topic GE Environmental Sciences
url http://ir.unimas.my/id/eprint/10097/
http://ir.unimas.my/id/eprint/10097/
http://ir.unimas.my/id/eprint/10097/1/Fazia.pdf