Abstract: Microcapsule having a shell and a core, wherein said core contains a non-aqueous liquid, said non-aqueous liquid being one or more liquid (at 21° C.) active substances or one or more active substances dissolved in a solvent S, solvent S being immiscible with water, and wherein said shell contains i) at least one protein PR that is overall negatively charged, ii) at least one polysaccharide PS that is overall positively charged, and iii) optionally an inorganic salt IS capable of crosslinking components protein PR and polysaccharide PS via formation of non-covalent bonds.

Abstract: A method of producing an aerosol-generating element for an aerosol-generating article or system is provided, the method including the steps of: preparing a matrix polymer solution including a matrix-forming polymer in water; adding a plurality of aerosol-generating formulation components to the matrix polymer solution to form an aerosol-generating solution, in which the aerosol-generating formulation components include a polyhydric alcohol and at least one alkaloid or cannabinoid, and in which the aerosol-generating solution includes at least 0.5 percent by weight of the at least one alkaloid or cannabinoid; forming a discrete portion of the aerosol-generating solution; adding the discrete portion of the aerosol-generating solution to a cross-linking solution of multivalent cations to cross-link the matrix-forming polymer; and removing the aerosol-generating element from the cross-linking solution and drying the aerosol-generating element.

Abstract: An aerosol-generating element for an aerosol-generating article or system is provided, the element including: a solid continuous matrix structure; and an aerosol-generating formulation dispersed within the structure, in which the formulation is trapped within the structure and releasable from the structure upon heating of the element, in which the structure is an alginate matrix, in which the formulation consists of: nicotine from 1% by weight to 4% by weight of a total weight of the element, glycerin from 60% by weight to 80% by weight of the total weight of the element, a carboxylic acid from 0.5% by weight to 4% by weight of the total weight of the element, and balance water, in which the formulation dispersed within the structure is at least about 80% by weight of a total weight of the element, and in which the element includes less than 15% by weight of water.

Abstract: An aerosol-generating element for an aerosol-generating article or system is provided, the aerosol-generating element including: a solid continuous matrix structure; and an aerosol-generating formulation dispersed within the structure, in which the formulation is trapped within the structure and releasable from the structure upon heating of the aerosol-generating element, in which the structure is a polymer matrix including one or more matrix-forming polymers, in which the formulation dispersed within the structure includes at least one alkaloid or cannabinoid compound and a polyhydric alcohol, in which a polyhydric alcohol content in the formulation dispersed within the structure accounts for at least 30 percent by weight based on a total weight of the aerosol-generating element, and in which the aerosol-generating element has an equivalent diameter of at least about 0.5 millimetres and an ovality from about 2 percent to about 30 percent.