1. Department of Microbiology; Institute of Biological Sciences; Federal University of Minas Gerais; UFMG; Belo Horizonte Brazil
2. Department of Chemistry; Institute of Exact Sciences; Federal University of Minas Gerais; UFMG; Belo Horizonte Brazil
3. Embrapa Milho Sorgo; Brazilian Agricultural Research Corporation; Sete Lagoas Brazil
4. Faculty of Engineering and Architecture; Foundation of Education and Culture of Minas Gerais; FUMEC University; Belo Horizonte Brazil