摘要:
The invention relates to a composition, advantageously an emulsion or a foam, comprising an internal phase dispersed in a hydrophilic continuous phase, the percentage of the internal phase being higher than 50%. Said emulsion composition contains nanocrystals of a polysaccharide other than cellulose, advantageously chitin, that are located at the interface between said internal phase and said hydrophilic continuous phase.
摘要:
The invention relates to a method for obtaining an emulsion including an internal hydrophobic phase dispersed in a continuous hydrophilic medium (MIPE) or high (HIPE) internal phase having an internal phase percentage of more than 55%. Said method includes the following steps: a) obtaining an oil-in-water emulsion composition having a hydrophobic phase/hydrophilic phase volumetric ratio of at least 5/95, including a step of incorporating cellulose nanocrystals into said hydrophilic phase and a step of forming the emulsion by dispersing said hydrophobic phase in said hydrophilic phase; and b) obtaining said emulsion having an internal phase percentage of more than 55%, including: b.1) a step of adding an amount of a hydrophobic phase to the emulsion composition obtained in step a), and agitating the resulting mixture; and/or b.2) a step of concentrating the emulsion composition obtained in step a) by removing at least a portion of said hydrophilic phase.
摘要:
The present invention relates to a composition in the form of an emulsion, advantageously a Pickering emulsion, comprising a hydrophobic phase dispersed in an aqueous phase, which composition contains emulsifying particles capable of stabilizing said emulsion, at least some of said particles consisting of cellulose nanocrystals having an elongated shape, which have the following features: a length between 25 nm ant 1 μm, and a width between 5 and 30 nm.