1. Delgado, G. G.nzalez, P.and Rodriguez, J.A. Proc. III International Seminar on Sugar Cane By-Products, Havana, May 18–21, pp 128 (1993).
2. Taguchi, H. and Humphrey, A.E. J. Ferment. F. and Favela, E. IX International Biotech-Technol. (Japan) 44, 881 (1966). nology Symp. Abstract No. 339, Crystal City, USA (1992).
3. C.P. Larralde; P.C. Gonzalez-Bianco and G. Viniegra-Gonzalez. Biotechnology Techniques (In press) (1994).
4. Miller, G.L. Anal. Chem. 31, 426–428 (1959).
5. Anon. Tecator A.B., Application Note 30 /81 (1981).