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A processing method of three-leaf green tea retaining medicinal active ingredients

A technology of active ingredient and cloverleaf, applied in the field of clover green tea processing that retains medicinal active ingredients, can solve the problems of loss of medicinal active ingredients, large equipment investment, and high production cost, and achieves short time consumption and water content. Low, low cost effect

Active Publication Date: 2021-10-15
安吉三叶青生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a large amount of medicinally active ingredients lost during the drying process
In addition, vacuum freeze-drying takes a long time, requires large investment in equipment, and high energy consumption. It takes a week or even longer to dry a batch of tea leaves, and the production cost is also high, which also limits the application of the technology to a certain extent.

Method used

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  • A processing method of three-leaf green tea retaining medicinal active ingredients
  • A processing method of three-leaf green tea retaining medicinal active ingredients
  • A processing method of three-leaf green tea retaining medicinal active ingredients

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]Step 1: Select fresh Clover leaves, remove inferior parts and non-medicinal parts, and wash with water;

[0038] Step 2: drying the washed Clover leaves at 50°C, removing the water remaining on the surface due to washing, and taking out after cooling;

[0039] Step 3: Dry the leaves of A. trilobata at 77.5°C under a nitrogen atmosphere until the water content is 24.5%, and take them out after cooling;

[0040] Step 4: placing the first dried Clover leaves in a dry freezer to refrigerate to 5°C;

[0041] Step 5: Using vitrification ultrafast freezing technology, freezing the refrigerated Clover leaves to minus 125°C within 3 minutes;

[0042] Step 6: Blow a dry mixed gas of argon and helium at 67°C, with a molar ratio of 1:1, at a gas flow rate of 0.28m / s on the surface of the frozen Clover leaves, and further dry until the leaves It is light yellow-green or light brown, and the non-oxidizing gas after absorbing water is dried and reused.

Embodiment 2

[0044] Step 1: Select fresh Clover leaves, remove inferior parts and non-medicinal parts, and wash with water;

[0045] Step 2: drying the washed Clover leaves at 40°C, removing the water remaining on the surface due to washing, and taking out after cooling;

[0046] Step 3: Drying the leaves of A. clover at 70°C under a nitrogen atmosphere until the water content is 12% for the first time, and taking them out after cooling;

[0047] Step 4: placing the first dried Clover leaves in a dry refrigerator to refrigerate to 3°C;

[0048] Step 5: Using liquid nitrogen freezing technology, freezing the refrigerated Clover leaves to minus 25°C within 35 minutes;

[0049] Step 6: Blow a dry mixed gas of argon and helium at 55°C, with a molar ratio of 0.5:1, on the surface of the frozen Clover leaves at a gas flow rate of 0.2m / s, and further dry until the leaves It is light yellow-green or light brown, and the non-oxidizing gas after absorbing water is dried and reused.

Embodiment 3

[0051] Step 1: Select fresh Clover leaves, remove inferior parts and non-medicinal parts, and wash with water;

[0052] Step 2: drying the washed Clover leaves at 60°C, removing the water remaining on the surface due to washing, and taking out after cooling;

[0053] Step 3: Drying the leaves of A. clover at 85°C under a nitrogen atmosphere until the water content is 40% for the first time, and taking them out after cooling;

[0054] Step 4: placing the first dried Clover leaves in a dry freezer to refrigerate to 7°C;

[0055] Step 5: Using gas turbo expansion refrigeration technology, freezing the refrigerated Clover leaves to below minus 65°C within 10 minutes;

[0056] Step 6: Blow a dry mixed gas of argon and helium at 75°C, with a molar ratio of 2:1, on the surface of the frozen Clover leaves at a gas flow rate of 0.4m / s, and further dry until the leaves It is light yellow-green or light brown, and the non-oxidizing gas after absorbing water is dried and reused.

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PUM

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Abstract

The invention discloses a processing method of clover green tea which retains medicinal active ingredients, comprising: selecting fresh clover green leaves, removing inferior parts and non-medicinal parts, and washing with water; washing the washed cloverleaf leaves at 40 Dry at -60°C, remove the water remaining on the surface due to water washing, and take it out after cooling; dry the leaves of the Clover leaf at 70-85°C under a nitrogen atmosphere for the first time until the water content is 12-40%, and take it out after cooling; The Clover leaves after the initial drying are placed in a dry refrigerator and refrigerated to 3-7°C; using quick freezing technology, the frozen Clover leaves are frozen to minus 25-25°C within 3-35min. Minus 125°C; Blow dry non-oxidizing gas at 55-75°C on the surface of the frozen Clover leaves, and further dry until the leaves are light yellow-green or light brown. The comprehensive use of drying, freeze drying, and airflow drying technologies greatly improves the retention of medicinal active ingredients during the drying process, and at the same time greatly shortens the processing cycle.

Description

technical field [0001] The invention relates to the field of traditional Chinese medicine processing, in particular to a processing method of three-leaf green tea which retains medicinal active ingredients. Background technique [0002] Clover is the root or whole plant of Cliff Cliff vine in the family Vitis genus, also known as golden thread hanging gourd, silk thread hanging golden bell, three-leaf flat rattan, stone mouse, small flat rattan, stone monkey, soil classics Pills, three-leaf pairs, one-grain beads, etc., are mainly produced in Jiangsu, Zhejiang, Jiangxi, Fujian, Guangdong, Guangxi, Hubei, Hunan, Taiwan and other places. Its medicinal records were first seen in "Compendium of Materia Medica", which is called "Sanyegan climbing vine, bitter, pungent, cool in nature, clearing heat and cooling blood, promoting blood circulation and expelling wind". Clover is recorded in "National Chinese Herbal Medicine Compilation", "Chinese Medicine Chronicles", and "Chinese M...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23F3/34
CPCA23F3/34
Inventor 李熙华方志财单雪峰陈静范仲华
Owner 安吉三叶青生物科技有限公司