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Inulin potential for encapsulation and controlled delivery of Oregano essential...
Costa, Sara Beirão da; Duarte, Cláudia; Bourbon, A. I.; Pinheiro, A. C.; Januário, M. Isabel N.; Vicente, A. A.; Costa, Maria Luísa Beirão daThe ability of inulin, a prebiotic material, as encapsulation matrix was explored. Microcapsules of Raftiline were produced by spray drying inulin solutions at different solids content (5, 15 and 25%) at 120, 155 and 190 °C, according to a Central Composite Rotatable design. Produced capsules were analysed for morphology and size by SEM and physiochemical characterized by DSC, IR and RAMAN. Oregano essential oi...
Effect of the matrix system in the delivery and in vitro bioactivity of microen...
Costa, Sara Beirão da; Duarte, Cláudia; Bourbon, A. I.; Pinheiro, A. C.; Serra, Ana Teresa; Martins, Margarida Moldão; Januário, Maria Isabel NunesThe effect of encapsulating matrix on retention, protection and delivery of Oregano essential oil (EO) was studied. EO was encapsulated in rice starch porous spheres, inulin and gelatine/sucrose capsules by spray drying. Gelatine/sucrose matrix was also dried by freeze drying. Experimental designs were applied to test the effect of bonding agents and solids content for rice starch and drying temperature and sol...
The effect of the matrix system in the delivery and in-vitro bioactivity of mic...
Costa, Sara Beirão da; Duarte, Cláudia; Pinheiro, Ana C.; Bourbon, Ana I.; Serra, Ana Teresa; Martins, Margarida Moldão; Vicente, AntónioIn this study, oregano essential oil (EO) was microencapsulated by spray/freeze drying in: rice starch (with/without bonding agents), gelatine/sucrose and inulin. Microencapsulates were analysed for morphology and structure, releasing ability of entrapped EO, as evaluated by diffusion coefficient (D) and bioactivity.
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