Supported flavour material for an aerosol-generating article or nicotine containing product

A method of preparing a flavour material for use in an aerosol-generating article, the method comprising:

• heating water to a temperature of at least 50 degrees Celsius;
• dispersing gellan gum into the heated water to form a gellan gum aqueous dispersion;
• heating the gellan gum aqueous dispersion to a temperature of at least 80 degrees Celsius to dissolve the gellan gum and form a gellan gum aqueous solution;
• cooling the gellan gum aqueous solution to a temperature from 65 degrees Celsius to 75 degrees Celsius;
• adding to the cooled gellan gum aqueous solution a flavourant formulation and an emulsifier to form a precursor composition;
• applying the precursor composition onto a carrier sheet material;
• drying the carrier sheet material with the applied precursor composition to obtain a flavour material.

An aerosol-generating article comprising a flavour material, wherein the flavourant is releasable from the flavour material upon heating the aerosol-generating article;

• the flavour material comprising:
• a polysaccharide matrix structure comprising gellan gum and emulsifier;
• a flavourant formulation dispersed within the polysaccharide matrix structure, wherein the flavourant formulation is at least partly trapped within the polysaccharide matrix structure and releasable from the polysaccharide matrix structure upon heating of the flavour material;
• and
• a carrier sheet material, wherein the polysaccharide matrix structure and the flavourant formulation are supported by the carrier sheet material.