Microscopic hydrogel spheres can be used to improve the mechanical properties of conventional hydrogels. We prepared ionic-covalent entanglement (ICE) hydrogel microspheres of calcium cross-linked gellan gum and genipin cross-linked gelatin using a water-in-oil emulsion-based processing technique. The method was optimized to produce microspheres with number average diameter 4 ± 1 μm. These ICE ...

A novel Nostoc commune-polysaccharide (NPS)-degrading enzyme with a molecular mass of 128.5 kDa was purified from Paenibacillus glycanilyticus DS-1. The optimum pH and temperature of the enzyme activity were 5.5 and 35 degrees C, respectively. The enzyme completely degraded NPS to oligosaccharides, ranging from tetra to hexasaccharides and could degrade the xylan weakly whereas xanthan, gellan,...

Polymeric beads have been used for protection and delivery of bioactive materials, such as drugs and cells, for different biomedical applications. Here, we present a generic two-phase system for the production of polymeric microbeads of gellan gum or alginate, based on a combination of in situ polymerization and phase separation. Polymer droplets, dispensed using a syringe pump, formed polymeri...

Biopolymers from a group of polysaccharides are used in treatments enhancing sowing material crops due to their physical and chemical properties, susceptibility modification, biodegradability high bioactivity. Natural polymers, such as: chitosan, alginian, celulose, galaktoglucomannans, lignin gellan gum, can be as binders seed coating or carriers active substances microorganisms. Moreover, bio...