1. Department of Chemistry, Universidade Federal do Rio Grande do Norte (UFRN), Avenida Senador Salgado Filho, 3000, Lagoa Nova, Natal, Rio Grande do Norte, 59078-970, Brazil
2. Department of Chemical Engineering, Center of Technology, Universidade Federal de Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, 97105-900, Brazil
3. Department of Agronomy, Universidade Federal da Fronteira Sul (UFFS), Erechim, Rio Grande do Sul, 99700-000, Brazil