1. Scientific
and Technological Bioresources Nucleus, Universidad de La Frontera, Casilla 54-D, Temuco, Chile
2. Centro
de Investigación en Polímeros Avanzados (CIPA), Beltrán Mathieu 224 piso
2, Concepción, Chile
3. Department
of Chemical Engineering, Universidad de La Frontera, Casilla
54-D, Temuco, Chile
4. Institute
of Chemistry, Working Group Chemistry and Technology of Renewable
Resources, University of Graz, Heinrichstraße 28, A-8010 Graz, Austria