Evaluation of antibacterial and enhancement of antibiotic action by the flavonoid kaempferol 7-O-β-D-(6″-O-cumaroyl)-glucopyranoside isolated from Croton piauhiensis müll

Beatriz Gonçalves Cruz, Hélcio Silva dos Santos, Paulo Nogueira Bandeira, Tigressa Helena Soares Rodrigues, Maria Geysillene Castro Matos, Mariana Ferreira do Nascimento, Guilherme G. C. de Carvalho, Raimundo Braz‐Filho, Alexandre Magno Rodrigues Teixeira, Saulo Relison Tintino, Henrique Douglas Melo Coutinho