Desenvolvimento e caracterização de microemulsão à base de óleo de sucupira (P. emarginatus Vog. Fabaceae) e avaliação da atividade antiinflamatória tópica

• Autor(a) principal: Pascoa, Henrique
• Data de Publicação: 2012
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tede/7384
• topic: Planta medicinal; Fitoterápico; Tecnologia fitofarmacêutica; B-cariofileno; Sesquiterpenos; Medicinal plants; Herbal; Phytopharmaceutical technology; B-caryophyllene; Sesquiterpenes; FARMACOLOGIA::FARMACOLOGIA GERAL

Pterodon emarginatus, popularly known as Sucupira Branca is a native species found in the Brazilian Savannahs in states of Goiás, Minas Gerais, São Paulo, Mato Grosso do Sul. Several studies have confirmed their therapeutic activities as antiinflammatory, antinociceptive, analgesic, antimicrobial, among others. The aim of this study was to develop a microemulsion with topical anti-inflammatory activity from the fixed oil obtained by cold pressing of the fruits of sucupira and additionally evaluate the topical anti-inflammatory activity using the same model of ear edema induced by croton oil. Initially, we made the physical-chemical and chemical composition of vegetable raw material. Using gas chromatography coupled with mass detector was possible to identify the presence of sesquiterpenes such as -caryophyllene and - humulene, with known anti-inflammatory pharmacological activity. The calculation of HLB value required by the oil and tests for determining the surfactant system has enabled the formulation of a microemulsion system using the surfactant/cosurfactant Ultramona® R-540/propyleneglycol, oil sucupira and water proportions 15:10:75 respectively. Stability tests have shown that the formulation when stored in the refrigerator (5±2°C) or room temperature (25±2°C) w ere stable for 30 days with no significant alterations in their physical and chemical parameters. The antiinflammatory activity of oil and formulating show statistical significance when compared to the respective negative controls with p <0.001 for both. The microemulsion presented an effective dosage form for this activity showing great potential for increasing the permeability of the skin oil sucupira confirming the possibility of obtaining a topical herbal medicine with anti-inflammatory action.