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Production process of high-yield and high-ester catechin green tea extract

A technology of green tea extract and production process, which is applied in the field of food processing, can solve the problems of complex operation and low catechin content, and achieve the effects of high biological activity, good process application prospect and high utilization rate

Pending Publication Date: 2020-11-03
浙江天草生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is relatively complicated to operate and the content of total catechins is not particularly high, which needs to be improved

Method used

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  • Production process of high-yield and high-ester catechin green tea extract
  • Production process of high-yield and high-ester catechin green tea extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 200g of crushed green tea raw material, add 2L of hot water at 100°C for 1 hour for extraction, filter, add 1.6L of hot water for extraction at 100°C for one hour, filter, and combine the two filtrates for later use; take 200ml of macroporous resin AB-8 for packaging For the column, wash the resin with 50% ethanol, then wash it with a large amount of water until there is no alcohol smell, and set it aside; take 2.5L of the mixed feed solution and put it on the column, control the flow rate to 2BV / h, and use 500ml Rinse with water, and then elute with 1L of 80% ethanol; after the end, concentrate the alcohol lotion into an extract, add ethyl acetate for extraction, shake it fully, let it stand, separate layers, concentrate and dry the ester layer, and obtain the finished dry powder. Detecting the component content and calculating the yield in the finished product dry powder obtained, EGCG55%, total catechin 82%, ester type catechin 67%, yield 72%.

Embodiment 2

[0035] Take 200kg of crushed green tea raw materials, add 2000L hot water at 100°C for 1 hour to extract, filter, add 1600L of hot water to extract at 100°C for one hour, filter, filter, and filter the two filtrates, then filter them with a plate and frame, and set aside; take macroporous resin AB- 8. Pack the column, wash the resin with 50% ethanol, and then wash it with a large amount of water until there is no alcohol smell, and set it aside; take the material liquid from the plate frame and put it on the column, control the flow rate to 2BV / h, after the end of the column Rinse with a large amount of water, and then elute with 80% ethanol; after the end, concentrate the alcohol washing solution into an extract, add three times of ethyl acetate for extraction, let stand for 60±20min, and separate layers; the organic layer enters The concentrator concentrates according to the standard operating procedure of the double-effect concentrator, the temperature is controlled to be le...

Embodiment 3

[0038] as attached figure 1As shown, an integrated leaching and filtering device includes a body 1 and a container 2 for placing tea leaves. The body 1 is respectively provided with a liquid inlet 11 and a liquid outlet 12. The closed door 13 on the body 1 enters into the body 1 or moves out from the body 1; the upper end of the housing device 2 in the body 1 is provided with a lifter for lifting the housing device 2. A unit 3, and a compression unit 4 for compressing the accommodating device 2. The lifting unit 3 includes a lifting plate 31 with one end fixed on the inner wall of the body 1 by a torsion spring 312. A traction rope 311 is fixed on the lower side of the lifting plate 31 away from the fixed end. The lower end of the traction rope 311 is provided with a hook or other fixing device (Fig. not marked in ), which can be used to fix the accommodating device 2. In addition, a control board 32 is provided to adjust the lifting height of the lifting board 31. One end o...

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Abstract

The invention relates to a production process of a high-yield and high-ester catechin green tea extract. The production process comprises the steps of extraction, re-extraction, filtration, adsorption, water washing, elution, concentration, abstraction and drying, the obtained extract finished product comprises 60-65% of ester catechin and 20-25% of non-ester catechin, and the caffeine content inthe extract finished product is less than 1%. In the finished product obtained by the production process, the content of the ester catechin is about 60%, the content of the non-ester catechin is 20%,the content of total catechin is greater than 85%, the content of caffeine is less than 1%, the yield of the product is as high as 70% or above, industrial production is easy to realize, and the production process has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a production process of high-yield, high-ester type catechin green tea extract. Background technique [0002] Tea polyphenols in green tea have health care and medical value, and catechins in tea polyphenols are the main biologically active components, which have antibacterial, strong reducing and antiviral effects, and are effective in preventing dental caries and preventing cell oxidation. It has a wide range of application values ​​in cancer, body aging, animal and plant food preservation and environmental protection. As a natural antioxidant, tea polyphenols are mainly composed of ester catechins and non-ester catechins. Studies have shown that ester catechins have higher biological activity, and non-ester catechins have higher biological activity. The biological activity is low, but the former is only used in medicine and health care products because of ...

Claims

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Application Information

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IPC IPC(8): A23F3/16A23F3/18A23F3/22A23F3/28B01D37/00B01D37/04
CPCA23F3/163A23F3/18A23F3/22A23F3/28B01D37/00B01D37/04
Inventor 徐雯婷程勇邵云东
Owner 浙江天草生物科技股份有限公司
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