Avaliação de adjuvantes obtidos a partir de extratos de plantas bioativas

Abstract

The need for alternatives which make the most efficient applications in plant management is constant and that the use of adjuvants together with the grout fitoprotetoras bring great benefits as increased wettability in adhering, the spreading, to reduce the surface tension and the angle contact drop and dispersion of the spray solution, in addition to increasing cuticular penetration thereby promoting effective against species unwieldy improving the chemical activity and application characteristics. Therefore, this study aimed to investigate sources of adjuvants derived from bioactive plant extracts. We evaluated the presence of saponins in phytochemical composition, saponosídica quality, surfactant and adhesive potential and the best way of preparation and concentration for each species. The average results for the treatments were compared statistically by the Tukey test at the level of 5% probability. The presence of saponins was observed in most of the species analyzed with distinct qualities, obtaining higher surface-active capacity for comparison factor used (neutral soap) while the higher adhesive strength was observed in the Aloe vera species. The best form of preparation and concentration was in accordance with the analysis carried out, and for the surfactants the best results were dried and crushed through mass while for the adhesives processed green form in juice obtained greater prominence. However further studies are still needed as the concentrations and associations that can be used in pest management for family farming.