Identification, characterisation and phylogenetic analysis of commensal bacteria isolated from human breast milk in Malaysia

Human breast milk microbiota is essential for infant immune system development, maturation and protection against infection. However, there is scarce information on the fluid’s microbiological composition from Malaysia. The objective of the study was to isolate, identify and characterise commensal b...

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Main Authors: Hassan, Zubaida, Mustafa, Shuhaimi, Abdul Rahim, Raha, Mat Isa, Nurulfiza
Format: Article
Language:English
Published: Universiti Putra Malaysia Press 2016
Online Access:http://psasir.upm.edu.my/id/eprint/29424/
http://psasir.upm.edu.my/id/eprint/29424/1/09%20JTS-0577-2015.pdf
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author Hassan, Zubaida
Mustafa, Shuhaimi
Abdul Rahim, Raha
Mat Isa, Nurulfiza
author_facet Hassan, Zubaida
Mustafa, Shuhaimi
Abdul Rahim, Raha
Mat Isa, Nurulfiza
author_sort Hassan, Zubaida
building UPM Institutional Repository
collection Online Access
description Human breast milk microbiota is essential for infant immune system development, maturation and protection against infection. However, there is scarce information on the fluid’s microbiological composition from Malaysia. The objective of the study was to isolate, identify and characterise commensal bacterial population present in human breast milk from Malaysia. One hundred bacteria were isolated from the human breast milk of healthy lactating women (n=30). After preliminary screening, 20 isolates were characterised using both phenotypic and molecular techniques. The results indicated that most frequently identified bacteria in this study were E. faecalis and S. hominis. These organisms alongside E. cloacae were all metabolised D-Maltose, Sucrose, D-Turanose, α-D-Glucose, D-Fructose, D-Mannose, D-Galactose, D-sorbitol and D-Mannitol and were able to grow at pH 5 and 6, 1% sodium lactate, 1%, 2% and 8% NaCl. BLAST showed over 99% similarity to those deposited in Genbank. Phylogenetic-relatedness was depicted using neighbour-joining method and had two clades with 100% bootstrap. These findings provided insight into the nature, characteristics and also phylogenetic-relatedness of bacteria present in human milk from Malaysia. Isolation and identification of commensal bacteria from human milk are considered the first step for future studies on the benefit of these organisms towards human health.
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spelling upm-294242016-08-02T03:05:54Z http://psasir.upm.edu.my/id/eprint/29424/ Identification, characterisation and phylogenetic analysis of commensal bacteria isolated from human breast milk in Malaysia Hassan, Zubaida Mustafa, Shuhaimi Abdul Rahim, Raha Mat Isa, Nurulfiza Human breast milk microbiota is essential for infant immune system development, maturation and protection against infection. However, there is scarce information on the fluid’s microbiological composition from Malaysia. The objective of the study was to isolate, identify and characterise commensal bacterial population present in human breast milk from Malaysia. One hundred bacteria were isolated from the human breast milk of healthy lactating women (n=30). After preliminary screening, 20 isolates were characterised using both phenotypic and molecular techniques. The results indicated that most frequently identified bacteria in this study were E. faecalis and S. hominis. These organisms alongside E. cloacae were all metabolised D-Maltose, Sucrose, D-Turanose, α-D-Glucose, D-Fructose, D-Mannose, D-Galactose, D-sorbitol and D-Mannitol and were able to grow at pH 5 and 6, 1% sodium lactate, 1%, 2% and 8% NaCl. BLAST showed over 99% similarity to those deposited in Genbank. Phylogenetic-relatedness was depicted using neighbour-joining method and had two clades with 100% bootstrap. These findings provided insight into the nature, characteristics and also phylogenetic-relatedness of bacteria present in human milk from Malaysia. Isolation and identification of commensal bacteria from human milk are considered the first step for future studies on the benefit of these organisms towards human health. Universiti Putra Malaysia Press 2016 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/29424/1/09%20JTS-0577-2015.pdf Hassan, Zubaida and Mustafa, Shuhaimi and Abdul Rahim, Raha and Mat Isa, Nurulfiza (2016) Identification, characterisation and phylogenetic analysis of commensal bacteria isolated from human breast milk in Malaysia. Pertanika Journal of Science & Technology, 24 (2). pp. 351-370. ISSN 0128-7680; ESSN: 2231-8526 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JST%20Vol.%2024%20(2)%20Jul.%202016/09%20JTS-0577-2015.pdf
spellingShingle Hassan, Zubaida
Mustafa, Shuhaimi
Abdul Rahim, Raha
Mat Isa, Nurulfiza
Identification, characterisation and phylogenetic analysis of commensal bacteria isolated from human breast milk in Malaysia
title Identification, characterisation and phylogenetic analysis of commensal bacteria isolated from human breast milk in Malaysia
title_full Identification, characterisation and phylogenetic analysis of commensal bacteria isolated from human breast milk in Malaysia
title_fullStr Identification, characterisation and phylogenetic analysis of commensal bacteria isolated from human breast milk in Malaysia
title_full_unstemmed Identification, characterisation and phylogenetic analysis of commensal bacteria isolated from human breast milk in Malaysia
title_short Identification, characterisation and phylogenetic analysis of commensal bacteria isolated from human breast milk in Malaysia
title_sort identification, characterisation and phylogenetic analysis of commensal bacteria isolated from human breast milk in malaysia
url http://psasir.upm.edu.my/id/eprint/29424/
http://psasir.upm.edu.my/id/eprint/29424/
http://psasir.upm.edu.my/id/eprint/29424/1/09%20JTS-0577-2015.pdf