Lipid based foam
AssigneeSociete des Produits Nestle S.A.
InventorsZeynel Deniz Gunes, Olivier Schafer, Helen Chisholm, Helene Deyber, Cindy Pelloux, Bernard Paul Binks
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Abstract
The present invention relates generally to the field of foams. One aspect of the invention provides a foam having a continuous lipid phase and a porosity of between and 80% wherein, at a temperature at which the lipid phase has a solid lipid content between 0.1 and 80% the foam comprises gas bubbles having at least 50% of their surface occupied by crystals comprising triglycerides. Further aspects of the invention are a product comprising a foam and a process for forming a foam.
Claims13
A process for forming a foam, the process comprising:
- providing a composition comprising triglycerides and having a lipid content greater than 20 wt. %, wherein the triglycerides are more than 95 wt. % of the total lipids of the foam, and all fatty acids in the triglycerides have a carbon chain length less than 22;
- cooling the composition to a temperature between 0° C. and 15° C. such that the composition comprises triglyceride crystals, has a solid lipid content between 5% and 20% and forms a gel having a linear shear elastic modulus G′ of 102-107 Pa at 1 Hz;
- and
- aerating the gel to form a foam comprising bubbles, and the foam does not have a rigid network of crystals between the bubbles, wherein the aerating of the gel comprises mechanical agitation, and the foam contains less than 5 wt. % of water.
Dependencies are inferred from the claim text.