Dehydrating and quality guaranteeing method of tea flowers and application thereof

A tea tree flower and moisture technology, applied in the application, tea, tea extraction, etc., can solve the problems of loss of volatile components, low and impure aroma, easy quality deterioration, etc., to achieve fresh color, fresh and fragrant aroma , the effect of stable quality

Pending Publication Date: 2018-09-18
HANGZHOU TEA RES INST CHINA COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the existing problems, the purpose of the present invention is to provide a method for dehydrating tea tree flowers and its application; the present invention can ensure that the prepared tea tree flower products have good quality, long storage period and wide application, and can improve the quality of tea tree flowers. The efficiency of dehydration and drying can reduce energy consumption and cost; solve the existing dried tea tree flower products that are not full and beautiful in appearance, not fresh in color, low in aroma and not pure, loss of volatile components, long time-consuming, high cost, and Problems such as quality deterioration during storage

Method used

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  • Dehydrating and quality guaranteeing method of tea flowers and application thereof
  • Dehydrating and quality guaranteeing method of tea flowers and application thereof
  • Dehydrating and quality guaranteeing method of tea flowers and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Harvesting: harvesting fresh, undamaged, budding tea tree flowers;

[0032] (2) Fixing: the above-mentioned tea tree flowers are microwaved, the microwave intensity is 300W, and the time is 180s, and the water content of the tea tree flowers after microwave fixing is 61%;

[0033] (3) Pre-freezing: pre-freeze the tea tree flowers after greening, the freezing temperature is ≤-30°C, until all the tea tree flowers are frozen and frozen;

[0034] (4) Drying: Take out the tea tree flowers after freezing, put them into a vacuum freeze dryer in time for drying, the refrigeration temperature is -40°C, the vacuum degree is 0.03~0.1Mbar, and the time is 12h, remove the moisture in the tea tree flowers A dry product is obtained, and the moisture content of the obtained tea tree flower is ≤10%;

[0035] (5) Storage: The tea tree flowers obtained by drying are placed in a dry, dark, and cool place for storage. The ambient temperature is controlled at 20°C and the humidity is ≤5...

Embodiment 2

[0040] (1) Harvesting: harvesting fresh, undamaged, budding tea tree flowers;

[0041] (2) Finishing: the above-mentioned tea tree flower is carried out microwave killing, microwave intensity 500W, time 120s, after microwave finishing, tea tree flower moisture content is 54%;

[0042] (3) Pre-freezing: pre-freeze the tea tree flowers after greening, the freezing temperature is ≤-30°C, until all the tea tree flowers are frozen and frozen;

[0043] (4) Drying: Take out the frozen tea tree flowers, put them in a vacuum freeze dryer for drying in time, the refrigeration temperature is -50°C, the vacuum degree is 0.03~0.1Mbar, and the time is 16h, remove the moisture in the tea tree flowers to obtain Dried products, the water content of the obtained tea tree flower is ≤7%;

[0044] (5) Storage: Store the tea tree flowers obtained by drying in a dry, dark, and cool place. The ambient temperature is controlled at 10°C and the humidity is less than or equal to 50%. It can be stored f...

Embodiment 3

[0047] (1) Harvesting: harvesting fresh, undamaged, budding tea tree flowers;

[0048] (2) Fixing: the above-mentioned tea tree flowers are microwaved, the microwave intensity is 900W, and the time is 45s, and the water content of the tea tree flowers after microwave fixing is 66%;

[0049] (3) Pre-freezing: pre-freeze the tea tree flowers after greening, the freezing temperature is ≤-30°C, until all the tea tree flowers are frozen and frozen;

[0050] (4) Drying: Take out the frozen tea tree flowers, put them in a vacuum freeze dryer in time for drying, the refrigeration temperature is -60°C, the vacuum degree is 0.03~0.1Mbar, and the time is 20h, remove the moisture in the tea tree flowers to obtain Dried products, the moisture content of the obtained tea tree flowers is ≤5%;

[0051] (5) Storage: the tea tree flower obtained by drying is stored in a dry, dark, and cool place, and the ambient temperature is controlled at 4°C, and the humidity is ≤50%. It can be stored for 1...

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Abstract

The invention discloses a dehydrating and quality guaranteeing method of tea flowers and application thereof. The method comprises the following steps: harvesting, microwave fixation, pre-freezing, freeze drying and the like to obtain a dried tea flower product; and the prepared dried tea flower product has complete and full flower shape, fresh and live color and luster and strong delicate fragrance, and the moisture content is less than or equal to 10%; the shape, color and luster, fragrance, physical and chemical components and other qualities of the product are stable, and the storage timeof the tea flowers can be prolonged to 18 months by regulating and controlling the storage conditions; the tea flowers and tea leaves can be upgraded, brewed and drunk together, have the fragrance oftea as well as delicate fragrance and sweetness of flowers and give forth unique composite fragrance; the obtained liquor has bright color and luster and delicious, mellow and refreshing taste; and anovel tea product with good color, good fragrance, good taste and good appearance is obtained.

Description

technical field [0001] The invention belongs to the technical field of value-added processing of tea resources, and in particular relates to a method for dehydrating tea tree flowers and an application thereof. Background technique [0002] Tea tree flowers contain tea polysaccharides, tea polyphenols, flavonoids, tea saponins, essential oils and other components, which are similar to those contained in tea leaves, and the content of some components such as protein and polysaccharides is higher than that of tea leaves. Studies have shown that tea tree flowers are as beneficial to human health as tea leaves, and have the effects of enhancing immunity, delaying aging, anti-oxidation, anti-tumor, lowering blood sugar, lowering blood fat, antibacterial and anti-cancer. In addition, tea tree flowers have a strong and long-lasting fragrance, which has gradually been recognized by the market. [0003] Camellia has broad development and application prospects, and is a renewable res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/26A23L3/36A23L3/44A23F3/16
CPCA23F3/163A23L3/26A23L3/36A23L3/44A23V2002/00A23V2300/10A23V2300/20
Inventor 张士康吕杨俊朱跃进张海华潘俊娴蒋玉兰刘均
Owner HANGZHOU TEA RES INST CHINA COOP
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