Patent Application
20110123700
Drinking of tea has become a general custom, habit and even a ritual for world population. Traditionally and conventionally, tea leaves are macerated in hot water for about 2-3 minutes, as its aromatic substances, antioxidants, proteins and starches dissolve in hot or cold water. Finally, a drinkable cup of tea is prepared. Thus, the method of preparing a cup of tea is a universal practice and a general norm in the world.
In other form of method, a cup of tea is also prepared with aqueous tea concentrates.
The aqueous tea concentrates are manufactured with a base product namely the powdered tea extracts. Accordingly, the powdered tea extracts are dispersed in water in complying with pre-determined concentration value adding preservatives to the solution in which, as a result, aqueous tea concentrates are manufactured.
The base product for aqueous tea concentrates—tea extract, which is in powder form, is a derivative of a chemical extraction process. In this particular chemical extraction process, tea leaves are subjected to mix with an alkali—Potassium hydroxide which helps tea compounds take out into the alkali solution. As the alkali solution reaches its saturated level with the tea compounds, the bulky mixture is passed through a centrifugal separator recovering an alkalized aqueous tea solution. Subsequently, recovered alkalized aqueous tea solution is neutralized with a weak acid. However, during the neutralization, de-ionization takes place removing residual salts that forms in the neutralization of alkalized aqueous tea solution.
Finally, neutralized aqueous tea solution is spray dried gaining tea extract in powder form, which is used as a base product for preparing aqueous tea concentrates.
(Production process is illustrated in following pages—
Consequently, aqueous tea concentrates serve preparation of tea cups instantly.
However, following is a description of the process involved in manufacturing “Instant Liquid Tea Concentrate” in glycerol base (or its equivalents). Materials for the production of Instant Liquid Tea Concentrate in glycerol base (or equivalents) are
Firstly, tea (Camellia sinensis) either black tea, green tea, white tea or oolong Tea in 40% dry solid content are set to macerate in closed sterilized tanks for nearly 2 hours with 65% and 35% glycerol, water contents respectively.
For example—
When 400 g of tea (Camellia sinensis) either black tea, green tea, white tea or oolong Tea is used—(40% in dry solid)
Then, the bulk containing water, glycerol and tea (Camellia sinensis) black tea, green tea, white tea or oolong tea is boiled for 30 minutes. After, the bulk is boiled, coarse particles of tea are removed through centrifugal separation thus obtaining a clarified liquid. Subsequently, the bulk is de-watered by a spray drying method. The final product “Instant Liquid Tea Concentrate” in glycerol base in liquid form is collected to closed sterilized chambers for filling to containers. (Production process is illustrated in the following pages—
The appearance and texture of “Instant Liquid Tea Concentrate” in glycerol base is clear, clarified liquid. In addition, the colours of particular concentrated tea liquids take their respective base colours—in particular, black tea, green tea, white tea and oolong tea get dark reddish, amber-green, light amber & greenish brown colours respectively, in particular concentrates.
In addition, the same process techniques are practiced to manufacture Liquid Chai Tea Concentrate, which is an instant form of a blend of tea (Camellia sinensis) and spices.—(
Accordingly, a blend of tea (Camellia sinensis) comprising of either black tea, green tea, white tea or oolong tea and spices in 40% dry solid content are set to macerate in closed sterilized tanks for nearly 2 hours with 65% and 35% glycerol, water contents respectively.
For example—
When 400 g of a blend of tea (Camellia sinensis) either in the form of black tea, green tea, white tea or oolong Tea and spices are used—(in 40% dry solid)
Then, the bulk containing water, glycerol and a blend of tea (Camellia sinensis) either in the form of black tea, green tea, white tea or oolong Tea and spices is boiled for 30 minutes. After, the bulk is boiled, coarse particles of the tea and spices are removed through centrifugal separation thus obtaining a clarified liquid. Subsequently, the bulk is de-watered by a spray drying method. The final product Liquid Chai Tea Concentrate, an instant form of a blend of tea (camellia sinensis) either in the form of black tea, green tea, white tea or oolong Tea and spices, in glycerol base is collected to closed sterilized chambers for filling to containers.
Chemically, glycerol is a tri-hydric alcohol (1,2,3 Propanetriol or Glycyl alcohol) and in food manufacturing, it is used as a solvent, emulsifier and a sweetening agent. Glycerin is a synonym for glycerol. Therefore, both glycerol and glycerin are chemically a tri-hydric alcohol and called 1,2,3 Propanetriol or Glycyl alcohol.
This innovative product is manufactured in closed sterilized tanks with utmost quality standards and quality control measures using sophisticated technological apparatus and devices.
