Microencapsulation of Gac Oil by Spray Drying: Optimization of Wall Material Concentration and Oil Load Using Response Surface Methodology

Tuyen C. Kha, Minh H. Nguyen, Paul D. Roach, Costas E. Stathopoulos

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

The objective of this study was to optimize the wall material concentration and the oil load on the encapsulation of Gac oil using spray drying by response surface methodology. Results showed that the quadratic polynomial model was sufficient to describe and predict encapsulation efficiencies in terms of oil, β-carotene, lycopene, peroxide value (PV), moisture content (MC), and total color difference (Δ E) with R 2 values of 0.96, 0.95, 0.86, 0.89, 0.88, and 0.87, respectively. Under optimum conditions (wall concentration of 29.5 % and oil load of 0.2), the encapsulation efficiencies for oil, β-carotene, lycopene, PV, MC, and Δ E were predicted and confirmed as 92 %, 80 %, 74 %, 3.91 meq/kg, 4.14 % and 12.38, respectively. The physical properties of the encapsulated oil powders obtained by different formulations were also determined. It was concluded that the protein-polysaccharide matrix as the wall material was effectively used for spray-drying encapsulation of Gac oil.

Original languageEnglish
Pages (from-to)385-397
Number of pages13
JournalDrying Technology
Volume32
Issue number4
DOIs
Publication statusPublished - Feb 2014
Externally publishedYes

Keywords

  • Gac oil
  • Microencapsulation
  • Response surface methodology
  • Spray drying
  • Whey protein

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry

Fingerprint

Dive into the research topics of 'Microencapsulation of Gac Oil by Spray Drying: Optimization of Wall Material Concentration and Oil Load Using Response Surface Methodology'. Together they form a unique fingerprint.

Cite this