Preparation and Characteristics of Alginate Microparticles for Food, Pharmaceutical and Cosmetic Applications

Overview

Journal Polymers (Basel)

Publisher MDPI

Date 2022 Sep 23

PMID 36145992

Authors

Anna Letocha

Malgorzata Miastkowska

Elzbieta Sikora

Affiliations

Soon will be listed here.

Abstract

Alginates are the most widely used natural polymers in the pharmaceutical, food and cosmetic industries. Usually, they are applied as a thickening, gel-forming and stabilizing agent. Moreover, the alginate-based formulations such as matrices, membranes, nanospheres or microcapsules are often used as delivery systems. Alginate microparticles (AMP) are biocompatible, biodegradable and nontoxic carriers, applied to encapsulate hydrophilic active substances, including probiotics. Here, we report the methods most frequently used for AMP production and encapsulation of different actives. The technological parameters important in the process of AMP preparation, such as alginate concentration, the type and concentration of other reagents (cross-linking agents, oils, emulsifiers and pH regulators), agitation speed or cross-linking time, are reviewed. Furthermore, the advantages and disadvantages of alginate microparticles as delivery systems are discussed, and an overview of the active ingredients enclosed in the alginate carriers are presented.

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