Bioactive and technological properties of an α-D-glucan synthesized by Weissella cibaria PDER21.

A slimy-mucinous-type colony of EPS-producing Weissella cibaria PDER21 was isolated and identified. The monomer composition was glucose, showing that the EPS is a glucan type homopolysaccharide, The core structure of (1 → 6)-linked α-d-glucose units including (1 → 3)-linked α-d-glucose branches at a ratio of 93.4/6.6 was revealed by 1H and 13C NMR spectra and confirmed by FTIR analysis. The glucan showed a superior thermal stability with almost no degradation in structure up to 300 °C. XRD analysis revealed the amorphous structure while SEM analysis confirmed the layer-like morphology. The glucan had an antioxidant activity (89.5%), water-holding capacity (103.7%) and water solubility index (80.7%) values, suggesting that the glucan had a strong level of antioxidant properties; good water binding capacity and excellent solubility. The glucan PDER21 is a polysaccharide possessing a good combination of technical and functional attributes, suggesting a great deal of potential for use in the food industry. Copyright © 2021. Published by Elsevier Ltd.

Citation

Mustafa Tahsin Yilmaz, Humeyra Ispirli, Osman Taylan, Mohammed Alamoudi, Enes Dertli. Bioactive and technological properties of an α-D-glucan synthesized by Weissella cibaria PDER21. Carbohydrate polymers. 2022 Jun 01;285:119227

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PMID: 35287855

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