Toxicity of Ethanolic Extract of Croton heliotropiifolius in Weevil Populations of Stored Maize Grains

Antifungals and acetylcholinesterase inhibitors from the stem bark of Croton heliotropiifolius

“…From a chemotaxonomic viewpoint, the presence of aporphine alkaloids, b-carbolines and furane clerodane diterpenes is in agreement with previous studies on the Croton genus (Salatino et al, 2007). The isolation of AChE inhibitors could explain the insecticidal activity previously described for the ethanolic extract of this plant (Houghton et al, 2006;Silva et al, 2012).…”

“…The leaves and bark are used either as infusions or pills for the treatment of gastrointestinal disturbances and weight loss (Govaerts et al, 2000). The essential oil of C. heliotropiifolius presented a significant larvicidal activity against Aedes aegypti (Doria et al, 2010) while the ethanolic extract demonstrated an interesting insecticidal activity against Sitophilus zeamais (Silva et al, 2012).…”

Physicochemical characteristics and cytotoxic effect of the methanolic extract of Croton heliotropiifolius Kunth (Euphorbiaceae)

“…Our results come in accordance to these values as demonstrated by chromatography and infrared spectrum results. The toxicity of several secondary metabolites, present in vegetal, have been described (Silva et al, 2012). Flavonoids have their cytotoxic activity stablished in different tumour cells (Costa-Lotufo et al, 2003).…”

“…Previous studies have described the presence of alkaloids, polyphenols and reducing agents in C. heliotropiifolius, including its medicinal use for relief of stomach pain, vomit, diarrhoea and as an antithermic (Randau et al, 2004). The essential oil has been described as larvicidal against Aedes aegypti (Dória et al, 2010) and the ethanolic extract demonstrated significant insecticidal activity against Sitophilus zeamais (Silva et al, 2012). The Human Toxicity Potential (HTP) is an important test to be performed early in the study of a medicinal herb.…”

Efeito do extrato aquoso e etanólico do angico preto sobre larvas de Rhipicephalus (Boophilus) microplus

“…Muitos dos ingredientes ativos presentes nos óleos são metabólitos secundários secretados pelas plantas na defesa química contra artrópodes, patógenos e microrganismos (Regnault-Roger, 1997;Rajendran e Sriranjini, 2008). Várias famílias de plantas têm sido extensivamente pesquisadas em relação à sua atividade biológica (Vieira et al, 2001;Moreira et al, 2007;Rosell et al, 2008;Rajendran e Sriranjini, 2008;Silva et al, 2012).…”