Abstract: Disclosed is a process for encapsulating a water-soluble oral care active agent by a shell comprising a hydrophobic polymer. Two routes are described, both of which involve providing a system comprising a hydrophobic polymer, a solvent selected from the group consisting of ethyl formate, ethyl acetate, methyl acetate, propyl acetate, butyl acetate, isobutyl acetate, isopropyl acetate, isoamyl acetate, and mixtures thereof, an oral care active agent, and an oily liquid such as liquid paraffin. In the first route one first has separate phases (viz. the O/O emulsion) from which one allows precipitation by solvent removal. In the other route, the separate phases are created so as to trigger precipitation. In both routes a temperature rise takes place so as to force solvent removal, resulting in solidification.

Abstract: The invention discloses a shelf stable food product. The product comprises a continuous aqueous phase, liquid oil droplets dispersed in the continuous aqueous phase, and protein coated gas bubbles. The continuous aqueous phase constitutes from 20% to 80% by volume (or weight) of the food product and the liquid oil droplets and protein coated gas bubbles are from 0.5 ?m to 10 ?m in diameter. The protein comprises cysteine amino acid residues, but is not a hydrophobin. The invention also discloses a method of forming an aqueous dispersion of protein coated gas bubbles suitable for forming the above food product. The method comprises dissolving a protein capable of forming coated gas bubbles in water with stirring, sonicating the protein solution at a temperature below but within 6° C. of the protein's denaturation temperature in the presence of oxygen, and controlling the temperature within these limits. Any protein debris from the resultant dispersion of protein coated gas bubbles is separated out.

Abstract: The invention discloses a shelf stable food product. The product comprises a continuous aqueous phase, liquid oil droplets dispersed in the continuous aqueous phase, and protein coated gas bubbles. The continuous aqueous phase constitutes from 20% to 80% by volume (or weight) of the food product and the liquid oil droplets and protein coated gas bubbles are from 0.5 ?m to 10 ?m in diameter. The protein comprises cysteine amino acid residues, but is not a hydrophobin. The invention also discloses a method of forming an aqueous dispersion of protein coated gas bubbles suitable for forming the above food product. The method comprises dissolving a protein capable of forming coated gas bubbles in water with stirring, sonicating the protein solution at a temperature below but within 6° C. of the protein's denaturation temperature in the presence of oxygen, and controlling the temperature within these limits. Any protein debris from the resultant dispersion of protein coated gas bubbles is separated out.