GB888643A - Gelatin composition and preparation thereof - Google Patents

Abstract

The invention comprises gelatin metaphosphate prosthete which may be prepared by treating, e.g. at a temperature of at least about 40 DEG C., gelatin metaphosphate, which may be in molten form, with an active prosthetic groupcontaining composition. The prosthetic group may be neutral, e.g. calcium phytate, or cationic, e.g. comprising a metal, an amine group, or an electropositive organic group. The preferred metals include aluminium, silver, the alkali metals sodium, potassium, lithium, and the alkaline earth metals, calcium, barium and strontium, which may be supplied in the form of the oxide, hydroxide or salts, e.g. carbonate or chloride, to produce, for example, calcium, aluminium and silver gelatin metaphosphate. The preferred amine groups include the ammonium group which may be supplied as free ammonia, or as ammonium hydroxide, and lower alkyl amines, e.g. methylamine, hexamine, tertiary butyl amine and tertiary octyl amine, which may be supplied as the free amine, to produce tertiary butylamine or tertiary octylamine gelatin metaphosphate and ammonium gelatin metaphosphate. The preferred electropositive organic groups include the lower alkyls, e.g. methyl, ethyl and propyl groups, and cyclohexyl, benzyl and phenyl groups which may be supplied as alcohols or phenols to produce, for example, methyl gelatin metaphosphate.ALSO:The invention comprises gelatin metaphosphate prosthete which may be used as an ingredient in a galatin-type dessert or in a whipping composition contributing a high degree of overrun, e.g. in marshmallow; or as a viscosity-improving agent, e.g. in beverages. Marshmallow may be produced by whipping a mixture of water, sugar, corn syrup and calcium phytate metaphosphate gelatin. The gelatin metaphosphate prosthate may be prepared by treating, e.g. at a temperature of at least about 40 DEG C., gelatin metaphosphate, which may be in molten form, with an active prosthetic group-containing composition. The prosthetic group may be neutral, e.g. calcium phytate, or cationic, e.g. comprising a metal, an amine group, or an electropositive organic group. The preferred metals include aluminium, silver, the alkali metals sodium, potassium, lithium, and the alkaline earth metals calcium, barium and strontium. The preferred amine groups include the ammonium group, and lower alkyl amines, e.g. methylamine, hexamine, tertiary butyl amine and tertiary octylamine. The preferred electropositive organic groups include the lower alkyls, e.g. methyl, ethyl and propyl groups, cyclohexyl, benzyl and phenyl groups.