Estabilidade da atividade antibacteriana do extrato hidroalcoólico de Schinus terebinthifolius Raddi sob diferentes condições de armazenamento

Abstract

Medicinal plants have been the most important traditional resource man to treat microbial infections , and constitute an important source in the search for new drugs with therapeutic activities . The pepper tree ( Schinus terebinthifolius Raddi ) belongs to the Anacardiaceae family, is a species native to Central and South America has antimicrobial , anti-inflammatory and anti-ulcer action, being used as an antiseptic and in the treatment of stomatitis . And veterinary medicine is becoming more and more aware of the popular methods used for the treatment or prevention of diseases affecting animals . With this too grows the need for studies on the efficiency , quality and safety of herbal medicines. In this perspective , this study aimed to evaluate the stability of the antibacterial action over time of the hydroalcoholic extract of the leaves of this plant under different conditions of storage, front five bacteria that cause bovine mastitis . The antibacterial activity of the aqueous leaf extract Aroeira technique was tested by serial microdilution techniques against five bovine mastitis bacteria ( Streptococcus agalactiae , S. dysgalactiae , S. uberis , Staphylococcus aureus ATCC and one strain of Staphylococcus spp coagulase-positive) . The results were expressed as Minimal Bactericidal Concentration . The extracts of mastic showed that CBM at time zero , differed from the others over time of analysis , showing better antibacterial activity , regardless of storage conditions . Have at refrigerated temperatures favored the antibacterial activity of both extracts that have undergone rotaevaporator ( extracted ) , how ( not pre - extracted ) after six months of observation . Under the conditions of the experiment it can be concluded that there was little influence of time on the antibacterial activity of the extracts during the six months of the experiment . Moreover , lyophilization tended to be the best form for storage extract.