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The interfacial, emulsification and encapsulation properties of hydrophobically modified inulin
- Kokubun, S., Ratcliffe, I., Williams, P.A.
- Carbohydrate polymers 2018 v.194 pp. 18-23
- anhydrides, beta-carotene, cosmetics, droplet size, drugs, dyes, emulsifying, emulsions, encapsulation, evaporation, gastric juice, hydrophobicity, inulin, solvents
- Octenyl- and dodecenyl succinic anhydride derivatives (OSA- and DDSA-) of inulin have been synthesised and their solution and interfacial properties have been determined and compared to a commercially available alkylated inulin, Inutec SP1. All samples formed micellar aggregates in solution above a critical concentration (critical aggregation concentration) and were able to ‘dissolve’ a hydrophobic dye. They were also able to form stable oil-in-water (O/W) emulsions as assessed by measurements of their droplet size as a function of time. DDSA-inulin with a high degree of substitution was found to be effective at encapsulating beta carotene using the solvent evaporation method which yielded a solid which dissolved readily in simulated gastric fluid. The results confirm the potential application of these materials in a number of areas including, drug delivery, pharmaceuticals, neutraceuticals, cosmetics and personal care.