Instant gynura bicolor and red tea powder and preparation method thereof

A purple-backed geranium and a production method technology, which are applied in the field of food processing, can solve problems such as poor flavor and loss of nutrients, and achieve the effects of good product color, promotion of absorption, and low cost

Inactive Publication Date: 2015-01-07
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the eating methods of G. chinensis are mainly stir-fried, boiled and ...

Method used

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  • Instant gynura bicolor and red tea powder and preparation method thereof
  • Instant gynura bicolor and red tea powder and preparation method thereof
  • Instant gynura bicolor and red tea powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment １

[0020] A method for preparing instant black tea powder of G. chinensis, characterized in that: material selection, enzymolysis, vacuum microwave drying, ultrafine pulverization, extraction, filtration, concentration, and freeze-drying to obtain the instant black tea powder of G. chinensis;

[0021] Its production method is as follows:

[0022] 1) Material selection: Select mature, fresh, and free of diseases and insect pests of the leaves of G. chinensis, wash them with water, and dry them in the air.

[0023] 2) Enzyme hydrolysis: Evenly spray cellulase solution with a mass concentration of 0.5% on fresh leaves.

[0024] 3) Vacuum microwave drying: absolute vacuum degree 80kpa, microwave power 3.0 kw / kg, time 5min.

[0025] 4) Superfine pulverization: After deep freezing, pulverize with BFM-6 Bailey micronizer for 10 minutes, and pulverize the particles to 20-100 μm.

[0026] 5) Extraction: The extraction temperature is 55°C; the extraction time is 30min, the ratio of tea t...

Embodiment ２

[0030] A method for preparing instant black tea powder of G. chinensis, characterized in that: material selection, enzymolysis, vacuum microwave drying, ultrafine pulverization, extraction, filtration, concentration, and freeze-drying to obtain the instant black tea powder of G. chinensis;

[0031] Its production method is as follows:

[0032] 1) Material selection: Select mature, fresh, and free of diseases and insect pests of the leaves of G. chinensis, wash them with water, and dry them in the air.

[0033] 2) Enzyme hydrolysis: Evenly spray cellulase solution with a mass concentration of 1.5% on fresh leaves.

[0034] 3) Vacuum microwave drying: absolute vacuum degree 50kpa, microwave power 1.5 kw / kg, time 5min.

[0035] 4) Superfine pulverization: After deep freezing, pulverize with BFM-6 Bailey micronizer for 10 minutes, and pulverize the particles to 20-100 μm.

[0036] 5) Extraction: The extraction temperature is 45°C; the extraction time is 30min, the ratio of tea t...

Embodiment ３

[0040] A method for preparing instant black tea powder of G. chinensis, characterized in that: material selection, enzymolysis, vacuum microwave drying, ultrafine pulverization, extraction, filtration, concentration, and freeze-drying to obtain the instant black tea powder of G. chinensis;

[0041] Its production method is as follows:

[0042] 1) Material selection: Select mature, fresh, and free of diseases and insect pests of the leaves of G. chinensis, wash them with water, and dry them in the air.

[0043] 2) Enzyme hydrolysis: Evenly spray cellulase solution with a mass concentration of 1% on fresh leaves.

[0044] 3) Vacuum microwave drying: absolute vacuum degree 60kpa, microwave power 1.5 kw / kg, time 5min.

[0045] 4) Superfine pulverization: After deep freezing, pulverize with BFM-6 Bailey micronizer for 10 minutes, and pulverize the particles to 20-100 μm.

[0046] 5) Extraction: The extraction temperature is 45°C; the extraction time is 30min, the ratio of tea to ...

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PUM

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Abstract

The invention discloses instant gynura bicolor and red tea powder and a preparation method thereof. The preparation method comprises the following steps: selecting materials, performing enzymolysis, performing vacuum microwave drying, performing deep refrigeration superfine grinding, extracting, concentrating, and performing freeze-drying to obtain the instant gynura bicolor and red tea powder. The instant gynura bicolor and red tea powder is improved in flavor, can effectively retain natural nutritional ingredients of gynura bicolor, and is convenient to carry; the preparation process is simple, feasible, low in cost and suitable for industrialized production. By spraying cellulase liquid, the leaching rate is increased and the flavor of the gynura bicolor is improved; gynura bicolor leaves are dried in combination with a vacuum microwave drying technology to retain the natural nutritional ingredients in the instant tea powder; the instant tea powder has the flavor characteristic of freshly brewed red tea and can be widely used in other foods such as solid milk tea and tea drinks.

Description

technical field [0001] The invention belongs to the field of food processing, and in particular relates to instant black tea powder and a preparation method thereof. Background technique [0002] As an elegant and affordable pure natural drink, tea has a unique flavor and taste, especially the combination of tea and edible natural raw materials, which enhances its health care effect. Because it contains a variety of amino acids and trace elements that are beneficial to the human body, and has the functions of refreshing fragrance, quenching thirst, refreshing and health care, it has always been loved by people. [0003] Purple-backed Tiankui is a popular vegetable, rich in hematopoietic iron, provitamin A, flavonoids, etc. It has a good therapeutic effect on diseases, has high edible value and medicinal value, and is a recognized health food. At present, the eating methods of G. chinensis are mainly frying, cooking and cold salad, which not only loses more nutrients, but a...

Claims

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Application Information

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IPC IPC(8): A23F3/30
Inventor 钟凤林许茹胡海非林义章王晋储敏
Owner FUJIAN AGRI & FORESTRY UNIV
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