Partículas lipídicas carregadoras de ácido ascórbico obtidas por aspersão à temperatura ambiente

• Ano de defesa: 2018
• Autor(a) principal: Santos, Stephany Emmanuely Bandeira dos
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Palavras-chave em Português: Encapsulação; Ácido ascórbico; Composto bioativo; Leito fluidizado
• Link de acesso: http://www.repositorio.ufc.br/handle/riufc/43235

The study of lipidic particles is being promising in the use in several areas, including the food, actuating the carriers of unstable compounds, becoming the target of online and industrial researches. This research had a source of lipid particles based on soybean oil with ascorbic acid (AA) by spraying at room temperature, as well as having an influence on the process of production and processing of proteins. Fully hydrogenated soybean oil (OSTH) and refined soybean oil (OS) as a wall material, aqueous solution as an active material and soy lecithin as an emulsifier. A rotational central composite (DCCR) 2 factorial design was proposed, alternately between the OSTH and OS and AA combinations, and sometimes the process efficiency, the effective encapsulation efficiency of AA (effective EE), the Zeta potential and the mean diameter of the particles. The emulsion was atomized in a fluidized bed (LabMaq 3.0) and the partitioning was done in a peristaltic pump at a speed of 120rpm. In addition, the experimental tests of the experimental design were used to evaluate the morphology and absorption spectroscopy in the infrared region (FT-IR). The returns obtained 63.63% to 72.04% and its maximum percentage among the tests with the highest concentration of AA solution. The mathematical model presented a ribbon graph of which the encapsulation efficiency is automatic and inversely proportional to the square of the AA solution present in the particle. The average result was between 0.304μm to 0.538μm and the Zeta potential between -39mV and -53.1mV, demonstrating its hydrophobicity and satisfactory stability. The set of embedded doses is converged to a matrix partition with dense characteristic and spherical shape. The particulate patterns withdrawn indicated the presence of groups characteristic of the raw materials used and not interfering between them. In this way, the study allowed the production and characterization of lipid particles through an innovative form of encapsulated datasets, being of interest in future studies to improve the technique.