Microencapsulation microencapsulated aromas

Applications of microencapsulation in other industries are numerous. The best known microencapsulated products are carbonless copying paper, photosensitive paper, microencapsulated fragrances, such as scent-strips (also known as snap-n-burst ), and microencapsulated aromas ( scratch-n-sniff ). All of these products are usually prepared by gelatin-acacia complex coacer-vation. Scratch-n-sniff has been used in children s books and food and cosmetic aroma advertising. Microcapsules are also extensively used as diagnostics, for example, temperature-sensitive microcapsules for thermographic detection of tumors. ... 

Hambleton, A., Debeaufort, F, Bonnotte, A., Voilley, A. 2009b. Influence of alginate emulsion-based films structure on its barrier properties and on its protection of microencapsulated aroma compound. Food Hydrocolloids, 2116-2124. 

Microencapsulation technology has been traditionally used in the food industry for flavour encapsulation where flavours are stabilized and their release controlled (Madene et al. 2006). Microencapsulation has also been used to enable the incorporation of sensitive bioactive component in fortified foods, while ensuring that the taste, aroma, or texture of food is not adversely affected (Pszczola 1998 Brazel 1999 Augustin et al. 2001). Microencapsulation can reduce off-flavours contributed by certain vitamins and minerals, permit time-release of the nutrients, enhance stability to extremes in temperature and moisture, and reduce undesirable chemical interactions with other ingredients. 

Rodrigues, R.A. Grosso, C.R. Cashew gum microencapsulation protects the aroma of coffee extracts. Journal of... 

Controlled or targeted release is the most common apphcation of microcapsules. Microencapsulation is an ideal tool to effect and achieve a desired delay of the active core until the correct stimulus is encountered. Most microcapsules are extraordinarily stable and show a great retardation of the encapsulated substances. Fragrances, aromas, drugs, enzymes, cosmetics and even pharmaceutical formulations (vitamins, drugs) are encapsulated for delivery from textiles at a specific time, rate, or situation. The encapsulated substances can either be released at once... 

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