What products use microencapsulation?

Microencapsulation technology is used in the pharmaceutical, agrochemical, and food industries; however, microcapsule production is most challenging for applications in the food industry owing to the high costs of the technique, which may make the final product too expensive.

Which are the components of microcapsules?

2.3. A microcapsule consists of a semi-permeable, spherical, thin, and strong polymer membrane surrounding a liquid core, with a diameter varying from a few microns to 1 mm [39]. Because of the absence of a solid or gelled core and small diameter, mass transfer limitation is reduced in microencapsulation.

What is the most common method of microencapsulation?

The spray drying technique is the most common microencapsulation method, has been used for decades to encapsulate mainly flavors, lipids, and pigments, but its use in thermo-sensitive products, such as microorganisms and essential oils, can be limited because the required high temperature causes volatilization and/or …

What can be formulated using microencapsulation technique?

Microencapsulation method has also been proposed to prepare intrauterine contraceptive device(12,63) In the fabrication of multilayered tablet formulations for controlled release of medi-cament contained in medial layers of tableted particles(1,7,10,63)

What is microencapsulation with example?

Microencapsulation is defined as a process in which tiny particles or droplets of the active ingredient(s) are surrounded by a coating or embedded in a homogeneous or heterogeneous matrix, generally of polymeric materials, to give small capsules that may range from sub-microns to several millimeters in size with many …

What is microencapsulation used for in textiles?

Currently microencapsulation is used in textiles for anti-bacterial treatments, UV protection, for moisturizing and skin treatments, body temperature regulation, repellence, and for perfume or fragrance releases.

Are the main protein material used for coating of microcapsules?

Most microcapsules have pores with diameters between a few nanometers and a few micrometers. Materials generally used for coating are: Ethyl cellulose.

Which of the protein is used as a coating material in microcapsules?

Coating materials include proteins (corn zein, wheat gluten, casein, gelatin, soy and whey proteins), polysaccharides (cellulose and other plant-based polymers), synthetic polymers (poly-2-vinylpyridine-co-styrene and polymethacrylate polymers) (Bribiesca et al., 2017;Temiz and Ö ztürk, 2018) and composites materials …

What are microencapsulated materials?

Microencapsulation is the protective technology of encapsulating solid, liquid or gas materials into micro particles with a diameter of 1–1000 μm, and has been widely used in fields of medicine, cosmetics, food, textile and advanced materials (Campos et al., 2013; Dubey et al., 2009).

How is the microencapsulated substance released?

Capsule contents may be released by melting the wall, or dissolving it under particular conditions, as in the case of an enteric drug coating. In other systems, the wall is broken by solvent action, enzyme attack, chemical reaction, hydrolysis, or slow disintegration.

Which is an advantage of microencapsulated materials?

The unique advantage of microencapsulation lies in that the core material is completely coated and isolated from external environment. More importantly, microencapsulation would not affect the properties of core materials, provided that proper shell material and preparing method are chosen.

What is encapsulation material?

In encapsulation, two main terminologies are frequently used. One is the material that is being coated is termed active material or core material and another is the shell material that is termed carrier material, wall material, shell, encapsulating agent, or coating material.