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Encapsulation of citral in formulations containing sucrose or trehalose: Emulsions properties and stability

Paper ID Volume ID Publish Year Pages File Format Full-Text
19082 43044 2014 9 PDF Available
Title
Encapsulation of citral in formulations containing sucrose or trehalose: Emulsions properties and stability
Abstract

•Emulsion properties and stability were similar between samples with different sugars.•The droplets size was small enough to assure stability no matter the composition.•Trehalose could be used as a substitute of sucrose for citral encapsulation.•Maltodextrin/trehalose/starch was better for the glassy state maintenance in storage.

The performance of formulations for citral encapsulation by spray drying was assessed. Focus was put on the emulsions properties and stability. Formulations contained sucrose or trehalose with or without maltodextrin and a modified starch as emulsifier. Viscosity, molecular mobility, microstructure, droplet size distribution, and stability were analyzed before and after spray-drying. Instability processes operated in the emulsions bulk, being flocculation the main one. Droplet size and viscosity influenced the emulsions stability. An increase in viscosity attained by the addition of MD delayed the global destabilization processes. Emulsion properties and stability were similar between the formulations containing sucrose or trehalose. Also, there were no differences regarding aroma retention or sensorial perception of citral. The mixture of maltodextrin and trehalose presented higher Tg values allowing to maintain the glassy state of the powder in broader temperature and relative humidity conditions. Trehalose presented a promising performance as an ingredient in the carrier formulation to encapsulate citric flavors.

Keywords
Citral; Encapsulation; Emulsions; Trehalose; Sucrose; Spray drying
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Encapsulation of citral in formulations containing sucrose or trehalose: Emulsions properties and stability
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 92, Issue 3, July 2014, Pages 266–274
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us