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


Yilmaz M. T. , Ispirli H., Taylan O., Alamoudi M., DERTLİ E.

CARBOHYDRATE POLYMERS, vol.285, 2022 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 285
  • Publication Date: 2022
  • Doi Number: 10.1016/j.carbpol.2022.119227
  • Journal Name: CARBOHYDRATE POLYMERS
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, PASCAL, BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chimica, Compendex, EMBASE, Food Science & Technology Abstracts, MEDLINE, Veterinary Science Database
  • Keywords: Glucan PDER21 polymer, Weissella cibaria, Antioxidant and technological properties, STRUCTURAL-ANALYSIS, PHYSICOCHEMICAL CHARACTERIZATION, FUNCTIONAL-PROPERTIES, GLUTEN-FREE, LACTOBACILLUS, SOURDOUGH, EXOPOLYSACCHARIDES, DEXTRAN, POLYSACCHARIDES, GLUCANSUCRASE

Abstract

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 alpha-D-glucose units including (1 -> 3)-linked alpha-D-glucose branches at a ratio of 93.4/6.6 was revealed by H-1 and C-13 NMR spectra and confirmed by FTIR analysis. The glucan showed a superior thermal stability with almost no degradation in structure up to 300 degrees 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.