1. AVT.Biochemical Engineering; RWTH Aachen University; Worringer Weg 1 Aachen 52074 Germany
2. Faculty of Chemical Engineering; Universiti Teknologi MARA; Malaysia
3. College of Chemistry and Ecology; Guangxi University for Nationalities; Nanning China
4. Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal