The publications of the members of the research group.
2015
Anna Angela Barba; Annalisa Dalmoro; Matteo D'Amore; Gaetano Lamberti
Liposoluble vitamin encapsulation in shell–core microparticles produced by ultrasonic atomization and microwave stabilization Journal Article
In: LWT - Food Science and Technology, vol. 64, no. 1, pp. 149–156, 2015, ISSN: 00236438.
Abstract | Links | BibTeX | Tags: drug delivery, Micro and Nano Vectors, Microwave drying, Shell{–}core microparticles, Ultrasonic energy, Vitamins
@article{Barba2015a,
title = {Liposoluble vitamin encapsulation in shell\textendashcore microparticles produced by ultrasonic atomization and microwave stabilization},
author = { Anna Angela Barba and Annalisa Dalmoro and Matteo D'Amore and Gaetano Lamberti},
url = {http://www.sciencedirect.com/science/article/pii/S002364381500403X},
doi = {10.1016/j.lwt.2015.05.040},
issn = {00236438},
year = {2015},
date = {2015-01-01},
journal = {LWT - Food Science and Technology},
volume = {64},
number = {1},
pages = {149--156},
abstract = {Encapsulation may protect unstable, fat soluble vitamins such as vitamin D2 (ergocalciferol). However, encapsulation by the solvent extraction and/or evaporation techniques can require toxic organic solvents, which greatly increase processing costs. The objective of this study was to evaluate the effect on ergocalciferol encapsulation by a combination of the ionic gelation method with the ultrasonic atomization and microwave drying. Optimization of manufacturing parameters included the addition of pluronic-F127 to the core solution at 1.5% w/w to increase the encapsulation efficiency to nearly 92%, greatly improving performance compared to Tween 80 at 0.5% w/w. Microwave treatment at 230 W promoted the recovery of 100% of the ergocalciferol and reduced drying times to about 30 min, while 690 W degraded 40% of the D2. In contrast, the conventional heating degraded 17% of the ergocalciferol during 12 h of processing. By all the applied methods, microparticles were produced with similar gastoresistance properties of less than 10% release at pH of 1.0, to nearly 100% release at pH of 6.8 and 240 min of dissolution. Analysis showed limited ergocalciferol degradation after 5 months of storage.},
keywords = {drug delivery, Micro and Nano Vectors, Microwave drying, Shell{\textendash}core microparticles, Ultrasonic energy, Vitamins},
pubstate = {published},
tppubtype = {article}
}
Encapsulation may protect unstable, fat soluble vitamins such as vitamin D2 (ergocalciferol). However, encapsulation by the solvent extraction and/or evaporation techniques can require toxic organic solvents, which greatly increase processing costs. The objective of this study was to evaluate the effect on ergocalciferol encapsulation by a combination of the ionic gelation method with the ultrasonic atomization and microwave drying. Optimization of manufacturing parameters included the addition of pluronic-F127 to the core solution at 1.5% w/w to increase the encapsulation efficiency to nearly 92%, greatly improving performance compared to Tween 80 at 0.5% w/w. Microwave treatment at 230 W promoted the recovery of 100% of the ergocalciferol and reduced drying times to about 30 min, while 690 W degraded 40% of the D2. In contrast, the conventional heating degraded 17% of the ergocalciferol during 12 h of processing. By all the applied methods, microparticles were produced with similar gastoresistance properties of less than 10% release at pH of 1.0, to nearly 100% release at pH of 6.8 and 240 min of dissolution. Analysis showed limited ergocalciferol degradation after 5 months of storage.