Biopolymer particle preparation
AssigneeNaturbeads Ltd
InventorsLolan Naicker, Davide Mattia, Janet Lesley Scott
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Abstract
The present disclosure provides a method for preparing biopolymer particles, said method comprising a membrane emulsification of a dispersed phase into a continuous phase wherein the dispersed phase comprises the biopolymer in a solvent, and wherein passing the dispersed phase through the membrane forms an emulsion of the biopolymer in the continuous phase; and a phase inversion with an anti-solvent to form particles of the biopolymer; wherein prior to (b), the emulsion is cooled to a temperature, T1. Also provided are biopolymer particles obtained from the method.
Claims14
A method for preparing biopolymer particles, said method comprising:
- (a) a membrane emulsification of a dispersed phase into a continuous phase wherein the dispersed phase comprises the biopolymer in a solvent, and wherein passing the dispersed phase through the membrane forms an emulsion of the biopolymer in the continuous phase;
- and
- (b) a phase inversion with an anti-solvent to form particles of the biopolymer;
- wherein prior to (b), the emulsion is cooled to a temperature, T1,
- T1 being greater than the pour point of the continuous phase (Tcont), and equal to or less than a transition temperature of the dispersed phase (Tdisp):
- Tcont<T1≤Tdisp;
- wherein the transition temperature is selected from the group consisting of the freezing point, the glass transition temperature, and the pour point;
- and
- wherein Tdisp>Tcont.
Dependencies are inferred from the claim text.