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Coacervation technique as an encapsulation and delivery tool for hydrophobic biofunctional compounds
Wang, Bo Akanbi, Taiwo O. Agyei, Dominic Holland, Brendan J. Barrow, Colin. J.
Wang, Bo
Akanbi, Taiwo O.
Agyei, Dominic
Holland, Brendan J.
Barrow, Colin. J.
Abstract
Coacervation between proteins and other polymers such as polyphosphates and polysaccharides is of interest for both research and industrial applications due to the increasing demands of the consumers for the food products prepared using natural ingredients. Consequently, coacervation technology has been investigated and used for the stabilization of susceptible biofunctional food ingredients against oxidation and/or degradation, with the benefit of masking undesired flavors and enhancing their controlled-release behavior. Compared with spray drying which is the most widely used microencapsulation technique, complex coacervation has advantages including high encapsulation efficiency (up to 99%), high loading of the “core” material (>50%) and significantly improved controlled-release characteristics. This chapter focuses on the utilization of coacervation techniques for encapsulating and stabilizing various oxidatively unstable biofunctional food ingredients. Discussion will center upon factors affecting the entire preparation of microencapsulation products, from the design of the delivery system, selection of the appropriate “shell” material to the crosslinking of the encapsulant. Characterization of the final microcapsules and applications of coacervation technology in the food industry will also be discussed.
Keywords
bioavailability, coacervation, controlled release, microencapsulation, oxidative stability, stabilization
Date
2018
Type
Book chapter
Journal
Book
Role of materials science in food bioengineering
Volume
Issue
Page Range
235-261
Article Number
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
Source URL
Event URL
Open Access Status
License
All rights reserved
File Access
Controlled