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Levan as a Raw Material: Properties
SUMMARY OF SOME LEVAN PROPERTIES:
- Adhesive
- Film former
- Water "soluble"
- Fructose polymer
- No VOCs or HAPs
- Does not swell in water
- High molecular weight, >107
- 50-200 nm diameter spheres
- Long term storage in dry form
- Film is excellent oxygen barrier
- Very resistant to organic solvents
- Produced from renewable resource
- Glass transition temperature 133°C
- Film is moderate water vapor barrier
- Exceptionally low intrinsic viscosity 0.14 dl/gm
- Contains no petroleum or natural gas derivatives
- Biodegradable, 60% mineralized in 10 days in marine environment
- Levan is NOT a replacement for many uses of other polysaccharides
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