Preparation and Emulsification Property of Octenyl Succinic Dextrin Ester
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Abstract:
The synthetic technology and emulsifying properties of octenyl succinic dextrin ester were investigated. Based on the degree of substitution (DS) of products, the single factors affecting the esterifying technology were carried out. The results showed that, when adding dosage of OSA was 3%, the optimum technological conditions were determined as follows: concentration of the dextrin slurry 40%, the pH 8.5, reaction temperature 35 ℃, and reaction time 5 h. IR spectral analysis revealed that the C=O and C=C vibration absorption peaks appeared at 1725 and 1574 cm-1, respectively. Dextrin ester could be used as emulsifier in beverage emulsion. With the DE value increasing, the ability of stabilizing oil decreased.
