..., water-soluble pigment. Design/methodology/approach Microencapsulation studies were performed with different polymers (gum arabic, xanthan gum and modified starch) to evaluate the color obtained and its stability. Furthermore, the physicochemical characterization of pulp extracts ( OS ), such as pH...

... sample has achieved higher values in most of the tests conducted when compared to all other sample. Microencapsulation is a process by which very tiny droplets or particles of liquid or solid material are surrounded or coated with a continuous film of a polymeric material, and it may provide...

... as an efficient and environmentally advantageous stabiliser. The effects of agitation rate and PVP concentration on the microencapsulation process have been investigated using optical microscopy (OM) and scanning electron microscopy (SEM). The chemical structure and thermal stability of the microcapsules have...

... of pH control during the reaction. In fact, the pH of the reaction media must be precisely controlled in conventional processes. The yield of microencapsulation was found to be 86.5 per cent when a high molecular weight of PVP (PVP K-90) was used. It was also found that the surface morphology...