Journal of Biotechnology and Biodiversity; Vol. 4 No. 1 (2013): Journal of Biotechnology and Biodiversity; 55-59 Journal of Biotechnology and Biodiversity; Vol. 4 Núm. 1 (2013): Journal of Biotechnology and Biodiversity; 55-59 Journal of Biotechnology and Biodiversity; v. 4 n. 1 (2013): Journal of Biotechnology and Biodiversity; 55-59