1. Chemical Technology, Luleå University of Technology, SE 971 87 Luleå, Sweden
2. Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
3. Department of Forest Genetics and Plant Physiology, Swedish University of Agriculture Sciences, SE 901 83 Umeå Sweden
4. Biochemical Process Engineering, Luleå University of Technology, SE 971 87 Luleå Sweden