Moisture sorption isotherms for un-modified and osan-substituted dextrin and gum acacia used as carrier materials for spray dried encapsulation of flavoring materials

Michael A. Mortenson, Theodore P. Labuza, Gary A. Reineccius

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Moisture sorption isotherms of ten un-modified and octenyl succinic anhydride substituted dextrin and gum acacia samples were determined gravimetrically via equilibration over saturated salt solutions (aw ranged from 0.11 to 0.85) at 23 and 35C. The degree of octenyl succinic anhydride substitution did not affect moisture sorption characteristics for dextrin samples. For gum acacia, increased levels of octenyl succinic anhydride substitution resulted in a decreased affinity for moisture in the range of 0.3 to 0.7 aw. The sorption data were well described by the BET and GAB models.

Original languageEnglish (US)
Pages (from-to)992-1001
Number of pages10
JournalInternational Journal of Food Properties
Volume13
Issue number5
DOIs
StatePublished - Aug 12 2010

Keywords

  • Dextrin
  • Gum acacia
  • Moisture sorption isotherms
  • Octenyl succinic anhydride

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