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Encapsulation of palm olein within calcium-alginate beads

Encapsulation of palm oil in Ca-alginate beads using high oil loading has been studied. It was found that the alginate concentration, oil volume fraction and alginate type have significant influence on the encapsulation efficiency and bead properties. The alginate-oil emulsion, comprising oil loadin...

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Main Author: Pogaku Sweta Yadav
Format: Thesis
Language:English
English
Published: 2011
Subjects:
TP670-699 Oils, fats, and waxes
Online Access:https://eprints.ums.edu.my/id/eprint/42541/1/24%20PAGES.pdf
https://eprints.ums.edu.my/id/eprint/42541/2/FULLTEXT.pdf
https://eprints.ums.edu.my/id/eprint/42541/
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spelling my.ums.eprints.425412025-01-13T08:18:07Z https://eprints.ums.edu.my/id/eprint/42541/ Encapsulation of palm olein within calcium-alginate beads Pogaku Sweta Yadav TP670-699 Oils, fats, and waxes Encapsulation of palm oil in Ca-alginate beads using high oil loading has been studied. It was found that the alginate concentration, oil volume fraction and alginate type have significant influence on the encapsulation efficiency and bead properties. The alginate-oil emulsion, comprising oil loading up to 30 vol% (equivalent to oil-to-wall weight ratio up to15 g/g) and 25 g/l of high G alginate solution, was found to be stable and resulted in encapsulation efficiency of 90% before drying. The oil-loaded wet beads were spherical. The sphericity values obtained was less than 2mm. The encapsulation efficiency was dependent on the degree of cross-linking at the surface of the extruded emulsion droplet as well as the emulsion stability. The oil extraction profile can be related to the structural properties of dried beads, which are dependent on the drying method and the oil loading. The overall encapsulation efficiency after freeze-drying and oven-drying were 90% and 79%, respectively, with oil content of over 85 wt% for both types of dried beads. The freeze-dried beads were non-oily and free flowing whereas the oven-dried beads were oily and sticky. The results of this work were compared with existing literature. The challenges and opportunities of the methods were discussed. 2011 Thesis NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/42541/1/24%20PAGES.pdf text en https://eprints.ums.edu.my/id/eprint/42541/2/FULLTEXT.pdf Pogaku Sweta Yadav (2011) Encapsulation of palm olein within calcium-alginate beads. Masters thesis, Universiti Malaysia Sabah.
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic TP670-699 Oils, fats, and waxes
spellingShingle TP670-699 Oils, fats, and waxes
Pogaku Sweta Yadav
Encapsulation of palm olein within calcium-alginate beads
description Encapsulation of palm oil in Ca-alginate beads using high oil loading has been studied. It was found that the alginate concentration, oil volume fraction and alginate type have significant influence on the encapsulation efficiency and bead properties. The alginate-oil emulsion, comprising oil loading up to 30 vol% (equivalent to oil-to-wall weight ratio up to15 g/g) and 25 g/l of high G alginate solution, was found to be stable and resulted in encapsulation efficiency of 90% before drying. The oil-loaded wet beads were spherical. The sphericity values obtained was less than 2mm. The encapsulation efficiency was dependent on the degree of cross-linking at the surface of the extruded emulsion droplet as well as the emulsion stability. The oil extraction profile can be related to the structural properties of dried beads, which are dependent on the drying method and the oil loading. The overall encapsulation efficiency after freeze-drying and oven-drying were 90% and 79%, respectively, with oil content of over 85 wt% for both types of dried beads. The freeze-dried beads were non-oily and free flowing whereas the oven-dried beads were oily and sticky. The results of this work were compared with existing literature. The challenges and opportunities of the methods were discussed.
format Thesis
author Pogaku Sweta Yadav
author_facet Pogaku Sweta Yadav
author_sort Pogaku Sweta Yadav
title Encapsulation of palm olein within calcium-alginate beads
title_short Encapsulation of palm olein within calcium-alginate beads
title_full Encapsulation of palm olein within calcium-alginate beads
title_fullStr Encapsulation of palm olein within calcium-alginate beads
title_full_unstemmed Encapsulation of palm olein within calcium-alginate beads
title_sort encapsulation of palm olein within calcium-alginate beads
publishDate 2011
url https://eprints.ums.edu.my/id/eprint/42541/1/24%20PAGES.pdf
https://eprints.ums.edu.my/id/eprint/42541/2/FULLTEXT.pdf
https://eprints.ums.edu.my/id/eprint/42541/
_version_ 1823092287031214080
score 13.23648

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