Formulation of monodisperse water-in-oil emulsions encapsulating calcium ascorbate and ascorbic acid 2-glucoside by microchannel emulsification

Khalid, Nauman, Kobayashi, Isao, Neves, Marcos A., Uemura, Kunihiko, Nakajima, Mitsutoshi and Nabetani, Hiroshi 2014, Formulation of monodisperse water-in-oil emulsions encapsulating calcium ascorbate and ascorbic acid 2-glucoside by microchannel emulsification, Colloids and surfaces A: physicochemical and engineering aspects, vol. 459, pp. 247-253, doi: 10.1016/j.colsurfa.2014.07.014.

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Title Formulation of monodisperse water-in-oil emulsions encapsulating calcium ascorbate and ascorbic acid 2-glucoside by microchannel emulsification
Author(s) Khalid, NaumanORCID iD for Khalid, Nauman orcid.org/0000-0002-8045-199X
Kobayashi, Isao
Neves, Marcos A.
Uemura, Kunihiko
Nakajima, Mitsutoshi
Nabetani, Hiroshi
Journal name Colloids and surfaces A: physicochemical and engineering aspects
Volume number 459
Start page 247
End page 253
Total pages 7
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2014-10-05
ISSN 0927-7757
1873-4359
Keyword(s) microchannel
calcium ascorbate
ascorbic acid 2-glycoside
monodisperse W/O emulsions
droplet productivity
Summary The aim of this study was to investigate the effects of the emulsifying conditions and emulsifier type on production of water-in-oil (W/O) emulsions encapsulating ascorbic acid derivatives by microchannel (MC) emulsification. The ascorbic acid derivatives added in a dispersed aqueous phase are calcium ascorbate (AA-Ca) and ascorbic acid 2-glucoside (AA-2G). The continuous phase used was decane, soybean oil or their mixture, containing 5% (w/w) tetraglycerin monolaurate condensed ricinoleic acid ester or sorbitan trioleate. A hydrophobized silicon MC array plate (model: MS407) with a channel depth of 7μm was used for MC emulsification. The use of MC emulsification enabled successful encapsulation of AA-Ca and AA-2G in monodisperse W/O emulsion droplets with coefficients of variation (CV) less than 7%. Their average droplet diameter (dav) increased with increasing the continuous-phase viscosity that is similar or higher than the dispersed-phase viscosity. The dav and CV of the resultant monodisperse W/O emulsions were unaffected by the dispersed-phase flow rate below critical values of 1.2-1.6mLh-1 when using decane as the continuous-phase medium.
Language eng
DOI 10.1016/j.colsurfa.2014.07.014
Field of Research 090802 Food Engineering
090899 Food Sciences not elsewhere classified
Socio Economic Objective 860199 Processed Food Products and Beverages (excl. Dairy Products) not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30086052

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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