Abstract
This study evaluates the favorable effects of using ultrasound during the dissolution process of ethanolic extracts of Heliconia psittacorum and Heliconia rostrata (Heliconiaceae), a family of plants reported to have antiophidic activities. The extracts were subjected to an ultrasound treatment before incubation with venom, and carbohydrate and protein contents were calculated. The ultrasound-treated extracts delayed the clotting effect of venom by up to 45.59 s compared to the positive control (venom). The metabolites content increased to 296.6% and 61.6% in protein and carbohydrate content, respectively. Ultrasound increases the amount of primary and secondary metabolites (potentially antiophidics) released from the extract into the media, and thereby enhances the anticoagulant activity of these plants against the Bothrops asper (mapaná X) venom.
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