Phenotypic and genotypic characteristics of enterobacteriaceae from Rayu river, sarawak

Enterobacteriaceae are normal inhabitants of gastrointestinal tract of warm blooded animals and human which some of them are associated with pathologic processes in gastrointestinal tract. Waterborne and foodborne diseases has been increasing over years which raise the global concern whereby river s...

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Main Author: Yong, Sy Fuh
Format: Final Year Project Report / IMRAD
Language:English
Published: Universiti Malaysia Sarawak, UNIMAS 2012
Subjects:
Online Access:http://ir.unimas.my/id/eprint/6225/
http://ir.unimas.my/id/eprint/6225/4/Sy%20Fuh%28fulltext%29.pdf
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author Yong, Sy Fuh
author_facet Yong, Sy Fuh
author_sort Yong, Sy Fuh
building UNIMAS Institutional Repository
collection Online Access
description Enterobacteriaceae are normal inhabitants of gastrointestinal tract of warm blooded animals and human which some of them are associated with pathologic processes in gastrointestinal tract. Waterborne and foodborne diseases has been increasing over years which raise the global concern whereby river serves as a potential transmission pathway for enterobacteriaceae to threaten human health. In this study, the enterobacteriaceae were successfully isolated by using EMB agar from samples collected from Rayu River. Gram-lysis test was carried out to differentiate gram-positive and gram-negative bacteria. The isolates were further identified by using API 20E kit and it was found that most of the isolates were Serratia (29.11%) and the least was Escherichia (1.27%). The antimicrobial susceptibility test shows that all of the isolates were susceptible to sulphamethoxazole trimethoprim (100%) while high resistant to nitrofurantoin and carbenicillin. High MAR index value obtained is ranged from 0.50 to 0.75. These values indicate that these isolates were originated from high risk sources where antibiotics are commonly used. LAMP result showed that none of the E. coli isolates from Rayu River consists of the virulence gene to produce Shiga toxin. Meanwhile, (GTG)5-PCR fingerprinting analysis revealed that the genomes of enterobacteriaceae isolates were highly diverse and well distributed as indicated by 6 major and minor clusters in the dendrogram.
first_indexed 2025-11-15T06:14:41Z
format Final Year Project Report / IMRAD
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institution Universiti Malaysia Sarawak
institution_category Local University
language English
last_indexed 2025-11-15T06:14:41Z
publishDate 2012
publisher Universiti Malaysia Sarawak, UNIMAS
recordtype eprints
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spelling unimas-62252024-03-14T08:08:20Z http://ir.unimas.my/id/eprint/6225/ Phenotypic and genotypic characteristics of enterobacteriaceae from Rayu river, sarawak Yong, Sy Fuh GE Environmental Sciences QR Microbiology Enterobacteriaceae are normal inhabitants of gastrointestinal tract of warm blooded animals and human which some of them are associated with pathologic processes in gastrointestinal tract. Waterborne and foodborne diseases has been increasing over years which raise the global concern whereby river serves as a potential transmission pathway for enterobacteriaceae to threaten human health. In this study, the enterobacteriaceae were successfully isolated by using EMB agar from samples collected from Rayu River. Gram-lysis test was carried out to differentiate gram-positive and gram-negative bacteria. The isolates were further identified by using API 20E kit and it was found that most of the isolates were Serratia (29.11%) and the least was Escherichia (1.27%). The antimicrobial susceptibility test shows that all of the isolates were susceptible to sulphamethoxazole trimethoprim (100%) while high resistant to nitrofurantoin and carbenicillin. High MAR index value obtained is ranged from 0.50 to 0.75. These values indicate that these isolates were originated from high risk sources where antibiotics are commonly used. LAMP result showed that none of the E. coli isolates from Rayu River consists of the virulence gene to produce Shiga toxin. Meanwhile, (GTG)5-PCR fingerprinting analysis revealed that the genomes of enterobacteriaceae isolates were highly diverse and well distributed as indicated by 6 major and minor clusters in the dendrogram. Universiti Malaysia Sarawak, UNIMAS 2012 Final Year Project Report / IMRAD NonPeerReviewed text en http://ir.unimas.my/id/eprint/6225/4/Sy%20Fuh%28fulltext%29.pdf Yong, Sy Fuh (2012) Phenotypic and genotypic characteristics of enterobacteriaceae from Rayu river, sarawak. [Final Year Project Report / IMRAD] (Unpublished)
spellingShingle GE Environmental Sciences
QR Microbiology
Yong, Sy Fuh
Phenotypic and genotypic characteristics of enterobacteriaceae from Rayu river, sarawak
title Phenotypic and genotypic characteristics of enterobacteriaceae from Rayu river, sarawak
title_full Phenotypic and genotypic characteristics of enterobacteriaceae from Rayu river, sarawak
title_fullStr Phenotypic and genotypic characteristics of enterobacteriaceae from Rayu river, sarawak
title_full_unstemmed Phenotypic and genotypic characteristics of enterobacteriaceae from Rayu river, sarawak
title_short Phenotypic and genotypic characteristics of enterobacteriaceae from Rayu river, sarawak
title_sort phenotypic and genotypic characteristics of enterobacteriaceae from rayu river, sarawak
topic GE Environmental Sciences
QR Microbiology
url http://ir.unimas.my/id/eprint/6225/
http://ir.unimas.my/id/eprint/6225/4/Sy%20Fuh%28fulltext%29.pdf