Ready-to-drink milk based beverages with improved texture and stability
The present invention relates to clean label beverage products. In particular, the invention is concerned with combination of a protein system induced by controlled aggregation of milk proteins and only one hydrocolloid, high acyl gellan gum, which imparts outstanding sensory attributes on beverage product, in particular when containing reduced fat/sugar. A method of producing such beverage and the products obtainable from the method are also part of the present invention. The present invention also relates to a RTD coffee beverage.
1. A method of producing a ready to drink (RTD) beverage, the method comprising:
mixing sugar and high-acyl gellan gum with at least one component selected from the group consisting of milk, non-fat dry milk, cream, skimmed-milk, and semi-skimmed milk;
adding an acidifier to form a mixture;
homogenizing the mixture at a temperature ranging from 65-80° C., the homogenizing comprising (i) a first step wherein the mixture is exposed to a first pressure and (ii) a second step wherein the mixture is exposed to a second pressure, wherein a total pressure is a sum of the first pressure and the second pressure and is 135-300 bars;
sterilizing at ultra-high temperature (UHT) conditions at 136-150° C. for 3-30 seconds to obtain a beverage base product;
cooling the obtained beverage base product to a temperature ranging from 0-25° C. to obtain the RTD beverage; and
filling aseptically the RTD beverage in an aseptic container, wherein the high-acyl gellan gum is the only natural hydrocolloid in the RTD beverage.
2. The method of claim 1 , wherein the first pressure is 100-250 bars, and the second pressure is 35-50 bars.
3. The method of claim 1 , wherein the sugar is 1-5 wt. % of the RTD beverage.
4. The method of claim 1 , wherein the high-acyl gellan gum is 0.01-0.03 wt. % of the RTD beverage.
5. The method of claim 1 , wherein the RTD beverage comprises casein-whey protein aggregates having a volume-based mean diameter value D[4,3] of 5-10 μm as measured by laser diffraction and a viscosity ranging from 3-30 cP measured at 4° C. at a shear rate 75 sec −1 .
6. The method of claim 1 , wherein the acidifier is selected from the group consisting of lactic acid, ascorbic acid, citric acid and combinations thereof.
7. The method of claim 1 , wherein the acidifier is lactic acid ranging from 0.03-0.06 wt. % of the RTD beverage.
8. The method of claim 1 , wherein the RTD beverage is a milk-based beverage comprising cocoa.
9. The method of claim 1 , wherein the RTD beverage is a coffee-based beverage, and the acidifier is coffee.
10. The method of claim 9 , wherein the coffee is selected from the group consisting of soluble coffee, micronized coffee particles, coffee extract, coffee concentrate and combinations thereof.
11. The method of claim 9 , wherein the coffee comprises at least one of arabica coffee or robusta coffee and has a total concentration of 0.5 wt. % to 1.5 wt. % of the RTD beverage.
12. The method of claim 1 , wherein the RTD beverage further comprises an additional component selected from the group consisting of calcium carbonate, calcium phosphate, calcium lactate-citrate, calcium citrate, sodium bicarbonate, potassium bicarbonate and combinations thereof.
13. The method of claim 1 , wherein the RTD beverage further comprises an additional component selected from the group consisting of sodium bicarbonate, potassium bicarbonate and combinations thereof.
14. The method of claim 1 , wherein the RTD beverage comprises sodium bicarbonate in an amount ranging from 0 to 0.15 wt. %.
15. The method of claim 1 , wherein the RTD beverage has a viscosity of 3-15 cP.
16. The method of claim 1 , wherein the sugar comprises sucrose in an amount ranging from 0 to about 5 wt. % of the RTD beverage.
17. The method of claim 1 , wherein the acidifier is citric acid ranging from 0.03-0.06 wt. % of the RTD beverage.
18. The method of claim 1 , wherein the RTD beverage comprises whey proteins.
19. The method of claim 1 , wherein the RTD beverage does not comprise any of carboxymethyl cellulose, hydroxypropyl cellulose, and carrageenans.