Microencapsulation by spray-drying and freeze-drying of extract of phenolic compounds obtained from ciriguela peel.

ABSTRACT: Microcapsules of ciriguela peel extracts obtained by ultrasound-assisted extraction were prepared by spray drying, whose results were compared with those of freeze-drying as a control. The effects of spray-drying air temperature, feed flow rate and ratio of encapsulating agents (maltodextrin and arabic gum) were studied. Encapsulation efficiency, moisture content, total phenolic compounds (TPC), water activity, hygroscopicity, solubility, colorimetric parameters, phenolic profile by HPLC/DAD, simulated gastrointestinal digestion and morphology of spray-dried and freeze-dried microcapsules were evaluated, as well as their stability of TPC during 90 days storage at 7 and 25 °C. Spray-dried extract showed higher encapsulation efficiency (98.83%) and TPC (476.82 mg GAE g^-1) than fre

SUBMITTER: da Silva Junior ME 

PROVIDER: S-EPMC10502068 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature