Method for providing coated product
The present invention provides a method for providing a coating comprising maltitol which can prevent the coating from being chipped without using reinforcement or binder at low cost and at short times. The present invention provides a method for providing a coating for a core material, which comprises: (i) a first coating step which comprises coating the core material with an aqueous solution comprising maltitol and a crystallization inhibitor which inhibits crystallization of maltitol in an amount more than 3% by weight and not more than 6% by weight based on the weight of total solid content of sugar alcohols including maltitol in the solution, (ii) a second coating step which comprises coating the core material which has been coated by the first coating step with a powder maltitol composition, and (iii) a drying step which comprises drying the thus coated core material.
1. A method for providing a coating for a core material, which comprises:
(i) a first coating step which comprises coating the core material with an aqueous solution comprising 82-92 wt % of maltitol, 5-12 wt % of sorbitol and a sugar alcohol having a polymerization degree of 3 or more in an amount more than 3% by weight and not more than 6% by weight based on the weight of total solid content of sugar alcohols including maltitol in the solution,
(ii) a second coating step which comprises coating the core material which has been coated by the first coating step with a powder maltitol composition, and
(iii) a drying step which comprises drying thus coated core material.
2. The method according to claim 1 , wherein the size of the particles contained in said powder maltitol composition is 1-295 μm.
3. The method according to claim 1 , which comprises repeating the steps (i) to (iii) until the ratio of the coating to the core material reaches 10% or more.
4. A product with coating obtainable by the method according to claim 3 , wherein the degree of friability of the product is 0.01 to 0.5%.
5. The product with coating according to claim 4 , which is chewing gum.
6. The method according to claim 3 , further comprising coating said coated core material with an aqueous maltitol solution which contains 97-99.9% by weight of maltitol based on total solid content of sugar alcohols including maltitol in the solution after repeating the steps (i) to (iii) is completed.
7. A product with coating obtainable by the method according to claim 6 , wherein the degree of friability of the product is 0.01 to 0.5%.
8. The product with coating according to claim 7 , which is chewing gum.
9. The method according to claim 1 , wherein the aqueous solution used in the step (i) comprises 4-5 wt % of the sugar alcohol having polymerization degree of 3 or more.
10. The method according to claim 1 , wherein the aqueous solution used in the step (i) comprises 6-10 wt % of sorbitol.
11. The method according to claim 1 , wherein the powder maltitol composition used in the step (ii) has the same sugar alcohol composition as contained in the aqueous solution used in the step (i).