ABSTRACT
An emulsion was prepared by homogenizing 30% rapeseed oil with 70% (w/w) aqueous solution. The emulsion viscosity increased when the concentrations of calcium lactate and low-methoxylated citrus pectin (LMP) in the emulsion were increased. A stable emulsion was obtained when the concentrations of LMP and calcium lactate were 1% and 9 mM at pH 3, respectively. Optical microscopy and laser scanning confocal microscopy revealed that the stable emulsion was a Pickering emulsion. In the Pickering emulsion, LMP with calcium formed micro gels that can be absorbed on the oil surface. The emulsifying property of LMP could widen the applications of pectin.
GRAPHICAL ABSTRACT
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