Effects of process variables on the encapsulation of oil in ca-alginate capsules using an inverse gelation technique

Sariah Abang, and Chan, Eng Seng and Denis Poncelet, (2012) Effects of process variables on the encapsulation of oil in ca-alginate capsules using an inverse gelation technique. Journal of Microencapsulation, 29 (5). pp. 417-428.

[img]
Preview
PDF
40Kb

Official URL: Http://dx.doi.org/10.3109/02652048.2012.655331

Abstract

The objective of this study was to investigate the effects of process variables on the encapsulation of oil in a calcium alginate membrane using an inverse gelation technique. A dispersion of calcium chloride solution in sunflower oil (water-in-oil emulsion) was added dropwise to the alginate solution. The migration of calcium ions to the alginate solution initiates the formation of a ca-alginate membrane around the emulsion droplets. The membrane thickness of wet capsules and the elastic modulus of dry capsules increased following first-order kinetics with an increasing curing time. An increase in the calcium chloride concentration increased the membrane thickness of wet capsules and the elastic modulus of dry capsules. An increase in the alginate concentration decreased the mean diameter of wet capsules but increased the elastic modulus of dry capsules

Item Type:Article
Uncontrolled Keywords:Calcium alginate membrane , calcium chloride , sunflower oil (water-in-oil emulsion)
Subjects:T Technology > TP Chemical technology
ID Code:12328
Deposited By:IR Admin
Deposited On:26 Nov 2015 11:03
Last Modified:26 Nov 2015 11:03

Repository Staff Only: item control page


Browse Repository
Collection
   Articles
   Book
   Speeches
   Thesis
   UMS News
Search
Quick Search

   Latest Repository

Link to other Malaysia University Institutional Repository

Malaysia University Institutional Repository