Cited by 73Polysaccharides Composition and ApplicationsProbiotics and Fermented FoodsBacterial biofilms and quorum sensing

Synthesis and Functional Characterization of Antibiofilm Exopolysaccharide Produced by Enterococcus faecium Mc13 Isolated from the Gut of Fish

Kanmani, Paulraj, Suganya, K., kumar, R. Satish, Yuvaraj, N., Pattukumar, V., Paari, K. A., Arul, Venkatesan·2013·Applied Biochemistry and Biotechnology

Abstract

The synthesis and functional characterization of an antibiofilm exopolysaccharide (EPS) from a probiotic Enterococcus faecium MC13 were investigated. The temperature of 35 °C, pH of 6.5, and salinity of 1-2% were found to be optimum for EPS production. The sucrose (30 g l⁻¹) and yeast extract (20 g l⁻¹) acted as suitable carbon and nitrogen sources, respectively, which strongly influenced EPS production with yield of 11.33 and 11.91 g l⁻¹. Based on the thin layer chromatography, EPS of E. faecium MC13 was found to be a heteropolysaccharide, composed of galactose and glucose sugar units with a molecular mass of 2.0 × 10⁵ Da. Fourier transform infrared spectrum analysis of the EPS revealed many predominant functional groups including hydroxyl, carboxyl, and amide groups. EPS exhibited better emulsifying and flocculating activities which is relatively similar to those of commercial polysaccharides. In vitro antioxidant inspect of EPS showed lesser antioxidant activity than that of the control ascorbic acid. Thermal behavior of EPS was different from the other EPS produced by other lactic acid bacteria. In vitro antibiofilm assay of EPS exhibited significant biofilm inhibition, especially with Listeria monocytogenes. To the best of our knowledge, this is the first report on EPS of E. faecium with strong emulsifying and flocculating activities.

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Crossref · 10.1007/s12010-012-0074-1

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  • It has been suggested that EPS can inhibit initial auto-aggregation of biofilm-forming bacteria by either interrupting communications among cells or by weakening cell membranes, and this ability is considered dose-dependent.

    “It has been suggested that EPS can inhibit the initial auto-aggregation of biofilm-forming bacteria by either interrupting communications among cells or by weakening cell membranes [152], and this ability is considered to be dose-dependent [153].”

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Authors
Kanmani, P., Suganya, K., kumar, R. S., Yuvaraj, N., Pattukumar, V., Paari, K. A., & Arul, V.
Affiliations
  • Korea University (KR)
  • Pondicherry University (IN)
Corresponding author
Arul, Venkatesan
Venue
Applied Biochemistry and Biotechnology
Published
2013-01-09
Volume
169
Issue
3
Pages
1001-1015
ISSN
  • 0273-2289 (ISSN-L)
  • 1559-0291
OpenAlex
W2081612731
Cited by
73
References
35
Citations by year
2026: 1 · 2025: 7 · 2024: 9 · 2023: 10 · 2022: 8 · 2021: 8 · 2020: 3 · 2019: 8 · 2018: 6 · 2017: 3 · 2016: 3 · 2015: 3 · 2014: 3 · 2013: 1
FWCI
4.97
Type
journal article
Language
en
Open access
closed
Locations
  • Applied Biochemistry and Biotechnology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Polysaccharides Composition and Applications
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacterial biofilms and quorum sensing
Keywords
exopolysaccharides, Enterococcus faecium, antibiofilm activity, biofilm inhibition, Listeria monocytogenes, probiotic bacteria, fish gut bacteria, heteropolysaccharide, emulsifying activity, flocculating activity, antioxidant activity, thermal effects
MeSH terms
Animals, Anti-Bacterial Agents, Fishes, Polysaccharides, Enterococcus faecium, Gastrointestinal Tract

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