Fadini AL, Alvim ID, Carazzato CA, Paganotti KBDF, Miguel AMRDO, Rodrigues RAF. Microparticles loaded with fish oil: stability studies, food application and sensory evaluation.
J Microencapsul 2021;
38:365-380. [PMID:
34278940 DOI:
10.1080/02652048.2021.1948622]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 06/23/2021] [Indexed: 10/20/2022]
Abstract
AIM
Evaluate the stability of microparticles loaded with fish oil produced by spray drying, spray chilling and by the combination of these techniques (double-shell) and use the microparticles for food application.
METHODS
Samples were stored for 180 days at 6 °C and 24 °C (75% RH). Performed investigations included encapsulation efficiency, moisture content, aw, size (laser scattering), colour (L*, a*, b*), polyunsaturated fatty acids (PUFAs) (GC), thermal behaviour (DSC) and crystalline structure (XRD).
RESULTS
Double-shell microparticles containing 26 wt% core material, 22.74 ± 0.02 µm (D0.5) and 2.05 ± 0.03 span index, 1.262 ± 0.026 wt% moisture content and 0.240 ± 0.001 of aw had PUFAs retention higher than 90 wt% during storage at 6 °C without changes in crystalline structure (β'-type crystals) and melting temperature (54 °C). The sensory evaluation suggested low fish oil release in oral phase digestion.
CONCLUSIONS
Double-shell microparticles were effective to protect and deliver PUFAs.
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