Characterization of Water-Soluble Extracellular Polysaccharide from <i>Aeribacillus pallidus</i> IM17
The production of the extracellular polysaccharide from the thermophilic bacterium Aeribacillus pallidus was carried out in the study. The polysaccharide was isolated and characterized by means of GC-MS, FT-IR, DSC, and XRD analyses. The rheological, foaming, and emulsifying properties of the polysaccharide were determined. Using a sucrose-rich medium, 27.1 mg dried EPS/100 mL was obtained with 94% carbohydrate and 1.5% protein. The monosaccharide profile of water-soluble EPS-IM17 was composed of rhamnose, arabinose, xylose, mannose, glucose, and galactose. The foaming capacity and stability of EPS-IM17 were 26.67% (+/- 4.71) and 40.01% (+/- 4.95), respectively, and the foaming stability was not affected by time. The emulsification index of EPS-IM17 was 64.54 (+/- 8.71) and decreased to 38.47 (+/- 10.44) after 24 h. EPS-IM17 had a crystalline structure. Solutions at different concentrations (10, 20, 40 mgmL(-1)) showed pseudoplastic behavior. In conclusion, this report could be a lead study for the use of Aeribacillus pallidus extracellular polysaccharide for different applications.
- Dergi
- INDIAN JOURNAL OF MICROBIOLOGY
- Yıl
- 2024
- Cilt
- 64
- Sayı
- 3
- Sayfa
- 973-982
- ISSN
- 0046-8991
- eISSN
- 0973-7715
- DOI
- 10.1007/s12088-023-01178-2
- WoS UID
- WOS:001132104900001