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White tea extract and preparation method and application thereof

A white tea extract and white tea technology are applied in pharmaceutical formulations, cosmetic preparations, cosmetic preparations and other directions, and can solve the problems of browning of the color of the extract, long extraction time, and deteriorating flavor.

Inactive Publication Date: 2017-05-31
杭州银茗生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional high-temperature extraction can effectively improve the production efficiency and extraction rate of phenols, but high-temperature extraction can easily lead to browning of the color of the extract and deterioration of the flavor. Although conventional low-temperature extraction is not easy to oxidize, it takes a long time to extract. low extraction rate

Method used

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  • White tea extract and preparation method and application thereof
  • White tea extract and preparation method and application thereof
  • White tea extract and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Get 1 kg of raw white tea (manufacturer: Fujian Dinghao Tea Co., Ltd.; product name: Shoumei; quality grade: special grade; net content 600g / bag, aluminum foil packaging, carton outer packaging), crush and sieve to 50 mesh, According to the mass ratio of material to liquid 1:20, mix with 20L ethanol water solution with a volume fraction of 60%, and extract at room temperature for 2 minutes with a flash type (pilot-type flash extraction apparatus, JHBE-100A, Henan Jinnai Technology Development Co., Ltd.), with a rotation speed of 5000r / min Centrifuge to remove slag (desktop low-speed centrifuge, TD5A-WS, equipped with 851400 horizontal rotor, Xiangyi Centrifuge Instrument Co., Ltd.), 4000r / min (3040xg), collect the centrifuged supernatant, and collect the residue after flash re-extraction once. , the combined supernatant obtained each time is the flash extract;

[0047] (2) Get the filter residue collected in step (1), add 20L of pure water, mix in a 50L stainless st...

Embodiment 2

[0062] (1) Get 1kg of raw white tea (manufacturer: Fujian Dinghao Tea Co., Ltd.; product name: Shoumei; quality grade: special grade; net content 600g / bag, aluminum foil packaging, carton outer packaging), crush and sieve to 60 mesh, According to the mass ratio of material to liquid 1:30, mix with 30L ethanol water solution with a volume fraction of 70%, and extract at room temperature for 3 minutes with a flash type (pilot-type flash extraction apparatus, JHBE-100A, Henan Jinnai Technology Development Co., Ltd.), with a rotation speed of 5000r / min Centrifuge to remove slag (desktop low-speed centrifuge, TD5A-WS, equipped with 851400 horizontal rotor, Xiangyi Centrifuge Instrument Co., Ltd.), 4000r / min (3040xg), collect the centrifuged supernatant, and collect the residue after flash re-extraction once. , the combined supernatant obtained each time is the flash extract;

[0063] (2) Get the filter residue collected in step (1), add 20L of pure water, mix in a 50L stainless ste...

Embodiment 3

[0077] (1) Get 1kg of raw white tea (manufacturer: Fujian Dinghao Tea Co., Ltd.; product name: Shoumei; quality grade: special grade; net content 600g / bag, aluminum foil packaging, carton outer packaging), crush and sieve to 60 mesh, According to the mass ratio of material to liquid: 1:25, mix with 25L ethanol water solution with a volume fraction of 70%, and extract at room temperature for 3 minutes with a flash method (pilot-type flash extraction apparatus, JHBE-100A, Henan Jinnai Technology Development Co., Ltd.), with a rotation speed of 5000r / min Centrifuge to remove slag (desktop low-speed centrifuge, TD5A-WS, equipped with 851400 horizontal rotor, Xiangyi Centrifuge Instrument Co., Ltd.), 4000r / min (3040xg), collect the centrifuged supernatant, and collect the residue after flash re-extraction once. , the combined supernatant obtained each time is the flash extract;

[0078] (2) Get the filter residue collected in step (1), add 20L of pure water, mix in a 50L stainless ...

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Abstract

The invention provides a white tea extract. A preparation method of the white tea extract comprises the following steps of crushing and sieving raw material white tea; adding an ethanol water solution to perform normal temperature flash extraction; performing centrifugation; collecting supernatant to obtain flash extraction liquid; filtering slag for use; taking filter slag; adding water and neutral protease; performing enzymolysis; then, performing boiling water bath for enzyme deactivation; cooling the materials to room temperature; performing centrifugation; collecting supernatant to obtain enzymolysis extraction liquid; merging flash extraction liquid with enzyme-extracting solution; performing ultrafiltration; taking filter liquid; performing vacuum concentration; performing vacuum freeze drying to obtain the white tea extract. The obtained white tea extract can be prepared into natural white tea functional lotion suitable for adult people of various skin types to use under the condition of not adding various chemical additives; various functions such as moisture preservation, whitening, moisturizing and senescence resistance are achieved.

Description

[0001] (1) Technical field [0002] The invention relates to a white tea extract and a preparation method thereof, as well as the application of the white tea extract in preparing natural functional lotion. [0003] (2) Background technology [0004] With the development of science and technology and society, people's requirements for beauty and skin care products have improved, which has promoted the rapid development of the cosmetics industry. Cosmetics with various functions and dosage forms have come out one after another, and the cosmetics market is dazzling and colorful. Among the many types of cosmetics, lotion occupies an increasingly important position with its unique characteristics of refreshing, moisturizing, and natural ventilation. Its product output and sales are increasing year by year and its development prospects are considerable. Lotion is a kind of liquid cosmetics with water as the main raw material. At present, there are two main types on the market: tran...

Claims

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Application Information

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IPC IPC(8): A61K8/9789A61Q19/00A61Q19/02A61Q19/08
CPCA61K8/97A61K2800/805A61Q19/00A61Q19/02A61Q19/08
Inventor 杨开陈金武董其虎李瑞李晨雨
Owner 杭州银茗生物技术有限公司
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