Figure 5.

a) Schematic showing the corresponding technology and composition used for fabrication of single and core–shell microparticles, respectively. Scale bars on the microscopy images are 1 mm. b) Survival of encapsulated Lactobacillus acidophilus LA3 in simulated gastrointestinal fluids (120 min in simulated gastric fluid—SGF; 180 min in simulated intestinal fluid—SIF). Formulation A contains alginate and formulation B contains alginate–shellac. Formulation C is composed of alginate as the wall material and sunflower oil loaded with probiotics as the core, and formulation D is made of alginate–shellac as the wall material and sunflower oil loaded with probiotics as the core. Reproduced with permission.^{[ 108 ]} Copyright 2018, Elsevier.