[1] Univ Fed Rural Pernambuco, Dept Quim, Recife, PE, Brazil
[2] Univ Fed Pernambuco, Dept Quim Fundamental, Recife, PE, Brazil
[3] Univ Fed Pernambuco, Dept Fisiol & Farmacol, Recife, PE, Brazil
[4] Univ Fed Pernambuco, Dept Antibiot, Recife, PE, Brazil
[5] Univ Sao Paulo, Inst Quim, Sao Paulo, SP, Brazil
[6] UFCG, Ctr Educ & Saude, Cuite, PB, Brazil