1. Nakayama, T., & Amachi, T. (1999). in Encyclopedia of bioprocess technology, fermentation, biocatalysis and bioseparation, 1st edn. Flinckinger and Drew, (eds). Wiley, NY, pp 1291–1305.
2. Hung, M., & Lee, B. (2002). Applied Microbiology and Biotechnology, 58, 439–445.
3. Brady, D., Marchant, L., McHale, L., & McHale, A. (1995). Enzyme and Microbial Technology, 17, 696–699.
4. Moskovitz, M., Curtis, C., & Gavaler, J. (1987). American journal of gastroenterology, 82, 632–635.
5. Medow, M., Thek, K., Newman, L., Berezin, S., Glassman, M., & Schwarz, S. (1990). American Journal of Diseases of Children, 114, 1261–1264.