Partial Structural Linkages and Physico-chemical Activities of an Extracellular Polysaccharide Produced by Pseudomonas fluorescens Strain WR-1

作者：Raza, Waseem^*; Jun, Yuan; Faheem, Muhammad; Shah, Muhammad Ali A.; Shen, Qirong; Ali, Shakir

来源：International Journal of Agriculture and Biology, 2014, 16(5): 971-975.

• Antioxidant activity
• Extracellular polysaccharides
• Glucose backbone
• Structural linkages

The extracellular polysaccharide produced by Pseudomonas fluorescens strain WR-1 was partially characterized structurally and its physico-chemical activities were determined. The results showed that the EPS consisted of (1 -> 4)-linked-glucose backbone branched with (1 -> 4, 6)-linked-glucose and (1 -> 4)-linked-arabinose. The physico-chemical activity analyses showed that the EPS of strain WR-1 presented good flocculating, metal chelating and hydroxyl radical scavenging activities while moderate lipid emulsification, superoxide radical scavenging and lipid peroxidation inhibitory activities were observed. These results revealed that the EPS of WR-1 has great potential to replace synthetic chemicals in industry.

• 出版日期2014
• 单位南京农业大学