1. Holmberg, K. [Novel surfactants, Preparation, applications and biodegradability, Second Edition, Revised and Expanded]. Surfactant Science Series [Holmberg, K. (ed.)] (Marcel Dekker, New York, 1998).
2. Pere, C., Infante, I. & Maria, R. Amino acid-based surfactants: enzymatic synthesis, properties and potential applications. Biocat. Biotrans. 20, 215–233 (2002).
3. Furutani, T., Ooshima, H. & Kato, J. Preparation of n-, o-diacyl ethanolamine from n-acyl ethanolamine using lipase preparations. Enzy. Microb. Technol. 20, 214–220 (1997).
4. Gallot, B. & Hassan, H. H. Lyotropic Lipo-Amino-Acids: Synthesis and Structural Study. Mol Cryst. Liq. Cryst. 170, 195–214 (1989).
5. Godtfredsen, S. E. & Bjoerkling, F. inventors; An enzyme-catalyzed process for preparing N-acyl amino acids and N-acylamino acid amides. European Patent EP 0, 473, 700 (A1) 1992 March 11.