Caracterização e modificação química da Galactomanana de Caesalpinia Ferrea Mart Ex Tul.Var Ferrea: estudo do potencial antiviral, hipoglicemiante e cicatrizante

Abstract

This study aims to develop polymeric compositions that can be applied to produce antiviral, hypoglycemic and as an aid in the healing of skin lesions. Therefore, the galactomannan from Caesalpinia ferrea seeds were purified, and subsequently modified by a chemical sulfation reaction. Then, purified sulphated galactomannan (JSGp and JSGs) were characterized by the following techniques: Infrared Transform Infrared spectroscopy (FTIR); Thermal Analysis (TG and DSC); Dispersive Energy X Ray (EDX); Scanning Electron Microscopy (SEM); Surface tension; Atomic Force Microscopy (AFM); Zeta potential; Gel Permeation Chromatography (GPC) and studies in rheology, among others. The toxicity of the galactomannans was evaluated for possible pharmacological applications. The following toxicity tests have been applied: assessment of toxicity through bioassays against nauplios Artemia sp; bioassays in vivo using Swiss mice; assessment of toxicity compared to the human neutrophils, as measured by lactate dehydrogenase (LDH) activity. According to the analyzes performed in this study, the purified galactomannan presented a hypoglycemic effect and a promising adjuvant in the healing of skin lesions. The galactomannan modified by sulfating presented antiviral properties against Herpes (HSV1) and polio (PV1) viruses.