CP Kelco

"Xantural is an exocellular heteropolysaccharide produced by the process of fermentation. It has a unique polymeric structure where chains tend to associate forming a complex network, gel-like structure. When shear is applied, these hydrogen bonds are disrupted producing a flowable liquid. The process instantly reverses when the shear is removed. Hence, Xantural solutions exhibit extremely high viscosity at rest or under low shear conditions and very low viscosity under high shear conditions, demonstrating high degree of pseudoplastic behavior. Xantural gives clear and transparent gels / solutions and displays good stability and viscosity properties over a wide pH and temperature range. This enables it to function across a variety of applications as a suspending agent, stabilizer, viscosity enhancer, gelling and sustained-release agent.

"Kelcogel CG is a water soluble, exocellular heteropolysaccharide produced by the process of fermentation. This novel gelling agent is extremely effective at low use levels in forming gels with cations, displays thermal stability and reversibility, is compatible with anionic, amphoteric as well as non-ionic surfactants and is stable over a wide pH range. These properties make it a multi-functional product for a variety of applications such as oral, ophthalmic, mucosal and transdermal drug delivery systems. Ophthalmic solutions with gellan gum, on instillation, form in-situ gels in presence of ions of the lacrimal fluid. This gel may provide controlled or extended-release of actives. The pseudoplastic nature of the gel provides gelled solutions at rest but quickly flows under the shear of blinking, resulting in enhanced patient comfort."