Characterisation and anti-biofilm activity of extracellular polymeric substances from Oceanobacillus iheyensis

被引：133
|
作者：
Kavita, Kumari [1 ,2 ]
Singh, Vijay Kumar [1 ]
Mishra, Avinash [1 ,2 ]
Jha, Bhavanath [1 ,2 ]
机构：
[1] CSIR, Cent Salt & Marine Chem Res Inst, Discipline Marine Biotechnol & Ecol, GB Marg, Bhavnagar 364002, Gujarat, India
[2] CSIR, Acad Sci & Innovat Res, New Delhi 110001, India
来源：
CARBOHYDRATE POLYMERS | 2014年 / 101卷
关键词：
Antibiofilm; Biofilm; EPS; Exopolymer; Marine bacteria; STRUCTURAL-CHARACTERIZATION; EXOPOLYSACCHARIDE; BACTERIUM; POLYSACCHARIDES;
D O I：
10.1016/j.carbpol.2013.08.099
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Oceanobacillus iheyensis BK6, isolated from a marine natural biofilm, produced approximately 400 mg L-1 extracellular polymeric substances (EPS). FTIR analysis of the EPS revealed different functional groups (halide groups, uronic acid and saccharides). The GCMS showed that the extracellular polysacchrides comprised of mannose (47.78%), glucose (29.71%) and arabinose (22.46%). The molecular mass of the EPS was about 2.14 x 10(6) Da. It was thermally stable and showed pseudoplastic rheology and emulsifying activity (66.47%). The EPS exhibited antibiofilm activity against a pathogenic strain of Staphylococcus aureus. This is the first report on the characterisation of EPS from the genus Oceanobacillus. The high viscosity, emulsifying properties and antibiofilm activity of EPS make it suitable for potential pharmaceutical and industrial applications. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：29 / 35
页数：7
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