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 language | English (US) |
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Pages (from-to) | 992-1001 |
Number of pages | 10 |
Journal | International Journal of Food Properties |
Volume | 13 |
Issue number | 5 |
DOIs | |
State | Published - Aug 12 2010 |
Keywords
- Dextrin
- Gum acacia
- Moisture sorption isotherms
- Octenyl succinic anhydride