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Preparation method of natural high-concentration jasmine tea essence

A jasmine tea, high-concentration technology, applied in the direction of essential oil/fragrance, fat production, etc., can solve the problems of low product concentration, high transportation cost, incomplete aroma, etc., and achieve the effect of overcoming low concentration

Inactive Publication Date: 2016-07-20
SHANGHAI AIPU VEGETABLE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, tea flavors are mainly prepared from artificially synthesized spices and tea extracts, which have impure aroma, poor softness, uncoordinated overall, and potential safety hazards; some natural tea flavors are also tea concentrates, tea leaves, etc. It is prepared from extracts, etc. The concentration of the product is low, the dosage is large, the transportation cost is high, and the aroma is incomplete

Method used

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  • Preparation method of natural high-concentration jasmine tea essence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Use a pulverizer to crush the mold-free and clean jasmine tea leaves to 20-60 meshes, and mix them with water at a ratio of 1:16 by weight to make component A jasmine tea slurry with fluidity. The jasmine tea used in this embodiment The tea leaves are Fujian Longtuanzhu Jasmine Tea or Fujian Zhenghe Jasmine Silver Needle;

[0030] (2) The obtained component A jasmine tea slurry is extracted by the SCC (spinning cone distillation column) method, and the parameters are: the flow rate of component A is 400L / H, the feed temperature is 98°C, and the temperature difference between the feed temperature and the system is -2°C, the system temperature is 100°C, and the external extraction rate is 7.5-8.5%; two parts are obtained, namely, component B jasmine tea extract and component C jasmine tea slurry, and the secondary SCC extraction is carried out for component B , the parameters are: the flow rate of component B is 700L / H, the feed temperature is 98°C, the temperature di...

Embodiment 2

[0034] Same as Example 1, the difference is that the raw material used in this embodiment is Jinhua jasmine tea, the feed temperature of the material is reduced in step (2) and the temperature difference between the feed temperature and the SCC system temperature is increased, and the obtained component A jasmine The tea slurry is extracted by the SCC (Spinning Cone Column) method, and the working parameters of the SCC system are set. The specific parameters are: the system temperature is 100°C; the feed rate is 400L / H; the material temperature is 95°C; The temperature difference of the system is -5°C; the external extraction rate is 7.5-8.5%. The same effect can be achieved by changing the feed temperature and the temperature difference between the feed temperature and the SCC system temperature.

Embodiment 3

[0036]Same as Example 2, except that the raw material used in this example is Suzhou jasmine tea. In step (3), the type and amount of enzyme added and the enzymolysis time are reduced, and the temperature of component F is adjusted to 40-45°C. Add 0.15% of the dry weight of tea leaves for enzymolysis, pH value 6.5, heat preservation and stirring for 3.5 hours; reducing the amount of enzyme added and enzymolysis time can achieve the same effect, shorten the processing cycle and increase production out, improve production efficiency.

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Abstract

The invention discloses a preparation method of a natural high-concentration jasmine tea essence. The method comprises the following steps: (1) mildew-free clean tea leaves are pulverized with a pulverizer; the pulverized tea leaves are mixed with water, such that a jasmine tea slurry A with flowability is obtained; (2) the jasmine tea slurry A is extracted with an SCC (spinning cone column) method, such that a jasmine tea extract B and a jasmine tea slurry C are obtained; the component B is subjected to secondary SCC extraction, such that a high-concentration jasmine tea distillate D is obtained; the component C is subjected to heating distillation, such that a distillate E and a jasmine tea slurry F are obtained; the component E is subjected to resin absorption and the component E which is subjected to resin absorption is subjected to organic solvent desorption, such that a component G is obtained; the component F is processed through the steps such as enzymolysis, centrifugation, filtration, CT (centritherm) vacuum concentration and the like, such that a jasmine tea concentrated juice H is obtained; the components D and G are partially or completely added into the component H, such that the natural high-concentration jasmine tea essence is obtained. The method provided by the invention has the advantages of natural raw materials and advanced processes. The method meets the current consumption demands of naturalness and healthiness.

Description

technical field [0001] The invention relates to a preparation method of pure natural high-concentration jasmine tea essence, in particular to a method for preparing natural high-concentration jasmine tea essence by combining triple distillation and CT vacuum concentration. Background technique [0002] Jasmine tea is a unique tea product in my country. It is favored by consumers for its fresh and elegant floral fragrance and mellow taste. It has been sold well in more than 40 countries. At present, its production and sales in the world are increasing year by year, and it has performed even better in the field of beverages. In order to stand out, the corresponding jasmine tea flavor is widely used in the food industry and occupies an important position in the processing industries such as beverages and ice products. With the continuous improvement of people's consumption level and consumption concept, the quality requirements of food It is also getting higher and higher. While ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/00
Inventor 孙建忠姚敏杨晋陶一荻钱钰梅崔丁维
Owner SHANGHAI AIPU VEGETABLE TECH
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