Freeze-drying barley tea and preparation method thereof

A technology of barley tea and freeze-drying, which is applied in the field of food processing, can solve the problems of low content and excessive content of active ingredients, and achieve the effects of low sugar content, rich nutrition and lower sugar content.

Inactive Publication Date: 2017-05-31
北京市绿友食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the barley tea products in the prior art either have low active ingredient content, or add other auxiliary components in pursuit of compound functions too much, so that the existing barley tea products gradually lose their original aroma and taste. In order to overcome the above-mentioned problems, a freeze-dried barley tea with a strong fragrance of barley tea, compound functions and low cost will be provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1 A kind of low-sugar freeze-dried barley tea and preparation method thereof

[0035] A kind of freeze-dried barley tea, its preparation method comprises the steps:

[0036] (1) The selected high-quality barley is shelled, washed, and then oven-baked. The baking conditions are: 100°C for 20 minutes, and the temperature is raised to 180°C for 20 minutes;

[0037](2) After cooling, crush the barley to less than 60 mesh, add water 5 times the weight of the barley and soak at 50°C for 1 hour; then perform ultrasonic extraction, the ultrasonic condition is 200W, frequency 40KHz, 40°C, 2h; then perform high-voltage pulse Electric field extraction, the pulse condition is electric field strength 25kV / cm, pulse frequency 1000Hz, 0.5h;

[0038] (3) 4000rpm, centrifuge for 5min to collect the supernatant extract A and precipitated wheat dregs B;

[0039] (4) Add 3 times the weight of barley water in the wheat dregs B, stir evenly, add the cellulase of 0.05% of barley ...

Embodiment 2

[0049] Embodiment 2 A kind of sugar-containing freeze-dried barley tea and its preparation method

[0050] A kind of freeze-dried barley tea, its preparation method comprises the steps:

[0051] (1) After the selected high-quality barley is dehulled and cleaned, it is baked in an oven. The baking conditions are: 120°C for 20 minutes, and the temperature is raised to 200°C for 10 minutes;

[0052] (2) After cooling, crush the barley to below 60 mesh, add water 10 times the weight of the barley and soak at 40°C for 2 hours; then perform ultrasonic extraction, the ultrasonic condition is 300W, frequency 30KHz, 50°C, 1h; then perform high-voltage pulse Electric field extraction, the pulse condition is electric field intensity 35kV / cm, pulse frequency 200Hz, 0.5h;

[0053] (3) 4000rpm, centrifuge for 10min to collect the supernatant extract A and precipitated wheat dregs B;

[0054] (4) Add water of 5 times the weight of barley in wheat dregs B, stir evenly, add the cellulase of ...

Embodiment 3

[0064] Embodiment 3 A kind of low-sugar freeze-dried barley tea and its preparation method

[0065] A kind of freeze-dried barley tea, its preparation method comprises the steps:

[0066] (1) The selected high-quality barley is washed and baked in an oven. The baking conditions are: 110°C for 25 minutes, and the temperature is raised to 190°C for 15 minutes;

[0067] (2) After cooling, crush the barley to below 60 mesh, add water 8 times the weight of the barley and soak at 45°C for 1.5h; then carry out ultrasonic extraction, the ultrasonic condition is 250W, frequency 35KHz, 45°C, 1.5h; High-voltage pulse electric field extraction, the pulse conditions are electric field strength 30kV / cm, pulse frequency 500Hz, 0.8h;

[0068] (3) 4000rpm, centrifuge for 8min to collect supernatant extract A and precipitated wheat dregs B;

[0069] (4) Add water of 4 times the weight of barley in wheat dregs B, stir evenly, add the cellulase of 0.05% of barley weight simultaneously, the alph...

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PUM

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Abstract

The invention belongs to the technical field of food processing, and particularly relates to a freeze-drying barley tea and a preparation method thereof, which aim at solving the problems of lower content of effective ingredients, or losing of original fragrance and taste of the barley tea product due to excessive auxiliary components in the barley tea product in the prior art. The freeze-drying barley tea has the advantages that the tea fragrance is rich, the compounding function is realized, and the cost is low; the barley tea is performed with ultrasonic extraction, high-voltage pulse electric field extraction and enzymolysis extraction, and the content of effective ingredients in the product is increased; the wine brewing yeast which can ferment to produce glutathione is added into the barley residues, so that the sugar content in the product is reduced, the glutathione is also produced, and the anti-oxidizing ability of the product is improved.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of food processing, and in particular relates to a freeze-dried barley tea and a preparation method thereof. [0003] Background technique: [0004] Barley tea is a traditional refreshing drink widely circulated among the people in China, Japan, Korea and other countries. The barley is roasted until it is browned. Before eating, it only needs to be brewed with hot water to extract a rich and fragrant tea. Barley tastes sweet and flat, not only has the effects of calming the stomach and quenching thirst, quenching thirst and removing heat, regulating qi, broadening the chest and lowering qi, eliminating stagnation and eating, nourishing deficiency, strengthening blood and color, and nourishing the five viscera and transforming grain food; Contains 17 kinds of trace elements needed by the human body, more than 19 kinds of amino acids, rich in multivitamins, unsaturated fatty acids, protein and dietary f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/34
CPCA23F3/34
Inventor 赵娇李国金温凯
Owner 北京市绿友食品有限公司
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