Application of isinglass and carrageenin to soft sweets, isinglass composite nutritive soft sweets and preparation method of isinglass composite nutritive soft sweets

The invention relates to the technical field of functional foods, in particular to an application of isinglass and carrageenin to soft sweets, isinglass composite nutritive soft sweets and a preparation method of the isinglass composite nutritive soft sweets. The preparation raw materials of the soft sweets comprise isinglass and carrageenin. The isinglass is applied to make the soft sweets, so that the safety properties of the soft sweets can be effectively improved, the purchasing worry of consumers can be eliminated, and the selling scope of the soft sweets can be enlarged; the isinglass and the carrageenin are compounded, so that the heat stability of the soft sweets can be improved, and besides, the mouth feel of the soft sweets can also be greatly enriched; erythrite being low in sugariness and low in calorie is preferably selected, the relative sugariness is 0.65, and the calorific value is one tenth of that of sugar; the erythrite does not participate in glycometabolism and blood sugar changes, patien