1. Department of Chemistry, University of Ado-Ekiti, P.M.B 5363 Ado Ekiti, Nigeria
2. Wood Chemistry Technology, University of Hamburg, Leuschnerstrasse 91, D-21031 Hamburg, Germany
3. vTI, Institute of Wood Technology and Wood Biology, Leuschnerstrasse 91, D-21031 Hamburg, Germany
4. Faculty of Life Sciences, Hamburg University of Applied Sciences, Lohbrügger Kirchstrasse 65, D-21033 Hamburg