首页|Fabrication, characterization and in vitro digestion of food-grade beta-carotene high loaded microcapsules: A wet-milling and spray drying coupling approach
Fabrication, characterization and in vitro digestion of food-grade beta-carotene high loaded microcapsules: A wet-milling and spray drying coupling approach
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NSTL
Elsevier
beta-Carotene high loaded microcapsules were fabricated via coupling the wet-milling and spray drying without employing any organic solvent or solubilizing oil. The impact of process parameters, including milling time and spray-drying inlet temperature, on the physicochemical stability, redispersibility, micromorphology and in vitro digestion of beta-carotene microcapsules was investigated. The optimized microcapsules exhibited a small average diameter after rehydration (229.4 nm) with ultrahigh encapsulation efficiency and loading capacity (99.18 % and 19.17 %, respectively). The crystalline beta-carotene was not completely transformed into amorphous state with a final crystallinity of 13.79 %. The morphology of microcapsules was dependent on the milling time and spray drying inlet temperature, and the best integrity and uniformity of microcapsules were achieved after milling for 150 min and spray-dried at 105 degrees C. Furthermore, the in vitro release rate of beta-carotene during the simulated gastrointestinal digestion was increased from 12.08 % to 33.72 % by extending the milling time and decreasing the inlet temperature of spray drying.
NSTL
Elsevier
