153
Views
26
CrossRef citations to date
0
Altmetric
Research Article

Glass encapsulation of flavours with chemically modified starch blends

&
Pages 385-397 | Received 25 Sep 2003, Accepted 07 Nov 2003, Published online: 03 Oct 2008
 

Abstract

Carrier compositions based on blends of various octenylsuccinic acid anhydride (OSAN)-modified starches were utilized in the glass encapsulation of flavours by means of melt extrusion and spray drying. Dextrinized, acid and enzymatically hydrolysed OSAN starches were used in various combinations. Processing parameters were optimized for desirable physical chemical and functional properties of the encapsulating compositions. One key property in the optimization of the extrusion process was setting rate of the exiting melt into a glass. Glassy states of identical spray-dried and extruded compositions were characterized by MDSC for glass transition temperature(s), heat capacity change and enthalpy relaxation. Flavour retention, surface flavour, moisture, particle density and flavour particle size distribution were also measured and compared for the extruded and spray-dried compositions. In addition, elastic recovery and caking were evaluated for extruded compositions. The glass transition parameters were correlated directly or indirectly with most of the physical properties of encapsulating compositions, especially flavour retention, surface flavour and caking. In extruded compositions, two phases were revealed by the presence of two glass transitions, whereas spray-dried compositions showed only one broad glass transition.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.