[1] Natl Univ Singapore, NUS Grad Sch Integrat Sci & Engn, Singapore 117456, Singapore
[2] ASTAR, Bioproc Technol Inst, Centros 138668, Singapore
[3] KRIBB, Biotechnol Proc Engn Ctr, Taejon 305806, South Korea
[4] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore