AI Article Synopsis
- Researchers isolated and purified a hetero-exopolysaccharide (LgEPS) from Lactobacillus gasseri FR4 found in native chickens, identifying its molecular weight as 1.86×10 Da.
- Analysis showed LgEPS primarily consists of glucose, mannose, galactose, rhamnose, and a small amount of fucose, along with confirmation of its functional groups through FT-IR.
- Additionally, LgEPS demonstrated potential health benefits, showing antioxidant, antibacterial, and antibiofilm activity against foodborne pathogens, suggesting its applications in the food industry as an antimicrobial and thickening agent.
Article Abstract
In this study, hetero-exopolysaccharide of Lactobacillus gasseri FR4 isolated from native chicken was produced and purified. The molecular weight of LgEPS was found to be 1.86×10Da. The gas chromatographic analysis revealed that the LgEPS was majorly composed of glucose (65.31%), mannose (16.51%), galactose (8.45%), rhamnose (6.55%) and a small fraction of fucose (3.18%). The functional groups of LgEPS were confirmed by FT-IR analysis. The 1D (H and C) and 2D NMR (COSY and HSQC) analysis showed the presence of 1,6 linked-α-d-Glcp, 1,4 linked-α-d-Galp, 1,3,4 linked-α-d-Manp, 1,3 linked-α-l-Rhap, 1,4 linked-α-l-Fucp, 1,4 linked-β-d-Glcp, and β-d-Galp-1 residues. SEM and AFM micrographs revealed the fibrous and porous nature of LgEPS. Moreover, LgEPS exhibited in vitro antioxidant, antibacterial and antibiofilm activity against various food borne pathogens, which proved that this LgEPS might be used in food industries as an antioxidant agent, viscosifying agent and antimicrobial agent etc.
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| http://dx.doi.org/10.1016/j.ijbiomac.2017.11.062 | DOI Listing |
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