Ready-to-drink milk beverages with improved texture/mouthfeel by controlled protein aggregation, and method of making thereof
The present invention relates to beverage products. In particular, the invention is concerned with a protein system induced by controlled aggregation of milk proteins which imparts outstanding sensory attributes on beverage product, in particular when containing low fat and/or low sugar. A method of producing such beverage and the products obtainable from the method are also part of the present invention.
1. A method of producing a ready-to-drink beverage comprising:
mixing a milk component comprising casein and whey wherein the casein and whey are present in a ratio from about 75:25 to about 60:40, a flavor component, a sugar, an acidifier, and a stabilizer system to form a beverage composition;
adjusting pH of the beverage composition between 5.9 to 6.2;
homogenizing the beverage composition after the pH adjustment;
heating to a temperature ranging from 75° C. to 99° C. and holding for 15 seconds to 400 seconds to obtain a beverage base product;
cooling the obtained beverage base product to 65° C. or below;
adding buffer to achieve pH of 6.7 to 7.0;
sterilizing at ultra high temperature (UHT) conditions at 136-150° C. for 3-15 seconds;
cooling to 25° C. or below to form a beverage solution, wherein the beverage solution comprises casein-whey protein aggregates having a volume based mean diameter value of at least 3μm as measured by laser diffraction; and
filling aseptically the beverage solution in an aseptic container to form the ready-to-drink beverage.
2. The method according to claim 1 , wherein the flavor component is selected from the group consisting of a cocoa component, a fruit flavor component, and combinations thereof.
3. The method according to claim 1 , wherein the stabilizer system comprises microcrystalline cellulose (MCC), carboxymethyl cellulose (CMC) and carrageenan.
4. The method according to claim 3 , wherein the microcrystalline cellulose (MCC) and carboxymethyl cellulose (CMC) are present in a co-processed form in a total amount of about 0.05 w/w% to about 0.18 w/w% of the beverage.
5. The method according to claim 3 , wherein the carrageenan is present from about 0.01 w/w% to about 0.10 w/w % of the beverage.
6. The method according to claim 1 , wherein the acidifier is selected from the group consisting of lactic acid, glucono delta-lactone (GdL), phosphoric acid, ascorbic acid, acetic acid, citric acid, malic acid and combinations thereof.
7. The method according to claim 1 , wherein the sugar is sucrose up to about 4.5 w/w % of the beverage.
8. The method according to claim 1 , wherein the beverage composition comprises fat in an amount not more than 2 w/w% of the beverage.
9. The method according to claim 1 , further comprising mixing fat to the beverage composition, wherein the fat is no more than about 2 w/w% of the beverage.
10. The method according to claim 1 , further comprising mixing a calcium salt to the beverage composition.
11. The method according to claim 10 , wherein the calcium salt is selected from the group consisting of calcium carbonate, calcium phosphate, calcium lactate-citrate, calcium citrate, and combinations thereof.
12. The method according to claim 1 , wherein the stabilizer system comprises microcrystalline cellulose (MCC), carboxymethyl cellulose (CMC) and carrageenan, the MCC and CMC are present in a co-processed form in a total amount of about 0.05 w/w% to about 0.18 w/w% of the beverage, and the carrageenan is present from about 0.01 w/w% to about 0.10 w/w % of the beverage.