CN103999993B - A kind of preparation method of green tea extract - Google Patents
A kind of preparation method of green tea extract Download PDFInfo
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- CN103999993B CN103999993B CN201410184350.8A CN201410184350A CN103999993B CN 103999993 B CN103999993 B CN 103999993B CN 201410184350 A CN201410184350 A CN 201410184350A CN 103999993 B CN103999993 B CN 103999993B
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Abstract
A preparation method for green tea extract, relates to flavorant preparing technical field, and with water, ethanol and benzinum mixed extractant solvent green tea, extract filters and obtained product after distillation and concentration.The invention has the beneficial effects as follows: the present invention is simply easy to prepare, without the need to increasing manufacturing facilities, environment friendly and pollution-free, production cost is low, can be comparatively complete comparatively complete the extracting of the fragrance matter in green tea.
Description
Technical field
The present invention relates to flavorant preparing technical field, be specifically related to a kind of preparation method of green tea extract.
Background technology
Tealeaves is the traditional beverages raw material coming from China.Due to the progress of society and the change of human life style, one of the deep processing and the deep process technology hot spot technology becoming field of drinks products of tealeaves.The tealeaves derived products such as tea extract-Tea Polyphenols, tea flavones become the important source material source of human health dietary supplements, nutrition fortifier and even medicine especially.
The sixties in 20th century, along with development and the utilization of the new type analysis checkout equipment such as gas chromatograph, IR spectrophotometer, mass spectrograph, there is develop rapidly to the research of tea aroma.In recent years, along with HPLC, GC chromatographic technique, the GC-MSs such as two-dimentional mass spectrum, three-dimensional mass spectrum, the fast development of novel sample pretreatment, reach to the research of tea aroma the depth & wideth that front institute art has especially, up to now, the aromatic substance be separated from tea fresh leaves existing more than 80 is planted; From the dry bitter edible plant, be separated the fragrance ingredient identified also reached more than 700 kinds, wherein green tea about 260 kinds, black tea is kind more than 400.And grasp material base that part tea aroma formed and characteristic component, ashamed enzymatic activity change law, fragrance are formed and the control of withering of releasing mechanism etc. is sub. promote tealeaves medicinal extract, the suitability for industrialized production of essence wet goods and application effectively, in tea extract method in the past, often use the extracting method of water or edible ethanol, but the fragrance matter in tealeaves has hundreds of kind, simple solvent system is limited to its solvability, often can only extract part fragrance matter, the fragrance extracted is not comprehensive, globality, natural sex is all poor.
Summary of the invention
Technical problem to be solved by this invention is to provide the preparation method of the green tea extract that a kind of associative perception, natural sense, the sense of reality and temperature tolerance are good.
Technical problem to be solved by this invention realizes by the following technical solutions:
A preparation method for green tea extract, is characterized in that: comprise following processing step,
A. choose deionized water, edible ethanol and benzinum and be deployed into mixed solvent with the ratio of 30:35:35;
B. mixing being deployed into mixed solvent in step a with green tea, the weight ratio 5-10:1 of mixing, then solid-liquor separation being carried out to mixture, collect liquid phase part;
C. again choose deionized water, edible ethanol is deployed into mixed solvent with the ratio of 35:65;
D. mixing being deployed into mixed solvent in step c with green tea, the weight ratio 5-10:1 of mixing, then solid-liquor separation being carried out to mixture, collect liquid phase part;
E. the liquid phase part obtained in above-mentioned steps b is mixed with the liquid phase part obtained in steps d, obtain mixture A;
F. Bu Shi separator is adopted to carry out solid-liquor separation in fume hood the mixture A in step e;
G. by above-mentioned steps f be separated after mixture under 20-60 DEG C of temperature conditions, extraction 2-10 hour;
H. at vacuum 0.01-0.1MPa, recycling design under vapo(u)rizing temperature 15-60 DEG C of condition, after concentrated extract, namely obtains required green tea extract.
The edible ethanol purity adopted in described step a is 95%, and benzinum purity is 30%-60%.
Described green tea is fresh green tea or dry green tea.
The invention has the beneficial effects as follows: the present invention is simply easy to prepare, without the need to increasing manufacturing facilities, environment friendly and pollution-free, production cost is low, can be comparatively complete comparatively complete the extracting of the fragrance matter in green tea.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1
A preparation method for green tea extract, comprises following processing step,
Take dry green tea 500 grams with electronic balance, load 10000ml there-necked flask, adding 5000ml concentration is the edible ethanol of 95% and the mixed solvent of deionized water, and wherein edible ethanol accounts for 65%, and deionized water accounts for 35%.Heat under 50 DEG C of conditions, stir, backflow and immersion 5h, carry out solid-liquor separation with Buchner funnel; Again solid is thrown back 5000ml there-necked flask, add the benzinum of 2500ml, heat under 50 DEG C of conditions, stir, backflow and immersion 5h, carry out solid-liquor separation with Buchner funnel in fume hood;
The liquid phase part of aforementioned twice is incorporated in 3 mouthfuls of flasks of 10000 milliliters, at vacuum 0.05MPa, distillation and concentration desolventizing under the condition of temperature 45 C;
When extract volume 200-300ml, change and continue desolvation to 3 mouthfuls of flasks of 500ml, final acquisition medicinal extract 6.6g.
Embodiment 2
A preparation method for green tea extract, comprises following processing step,
Take dry green tea 500 grams with electronic balance is old, load 10000ml there-necked flask, add: 7500ml concentration is the edible ethanol of 95% and the mixed solvent of deionized water and benzinum, and wherein edible ethanol accounts for 35%, and deionized water accounts for 33%, and benzinum accounts for 35%.Heat under 50 DEG C of conditions, stir, backflow and immersion 5h, carry out solid-liquor separation with Buchner funnel in fume hood;
Aforesaid extract is placed in 3 mouthfuls of flasks of 10000 milliliters, at vacuum 0.05MPa, distillation and concentration desolventizing under the condition of temperature 45 C;
When extract volume 200-300ml, change and continue desolvation to 3 mouthfuls of flasks of 500ml, final acquisition medicinal extract 6.5g.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. a preparation method for green tea extract, is characterized in that: comprise following processing step,
A. choose deionized water, edible ethanol and benzinum and be deployed into mixed solvent with the ratio of 30:35:35;
B. mixing being deployed into mixed solvent in step a with green tea, the weight ratio 5-10:1 of mixing, then solid-liquor separation being carried out to mixture, collect liquid phase part;
C. again choose deionized water, edible ethanol is deployed into mixed solvent with the ratio of 35:65;
D. mixing being deployed into mixed solvent in step c with green tea, the weight ratio 5-10:1 of mixing, then solid-liquor separation being carried out to mixture, collect liquid phase part;
E. the liquid phase part obtained in above-mentioned steps b is mixed with the liquid phase part obtained in steps d, obtain mixture A;
F. Bu Shi separator is adopted to carry out solid-liquor separation in fume hood the mixture A in step e;
G. by above-mentioned steps f be separated after mixture under 20-60 DEG C of temperature conditions, extraction 2-10 hour;
H. at vacuum 0.01-0.1MPa, recycling design under vapo(u)rizing temperature 15-60 DEG C of condition, after concentrated extract, namely obtains required green tea extract.
2. the preparation method of a kind of green tea extract according to claim 1, is characterized in that: the edible ethanol purity adopted in described step a is 95%, and benzinum purity is 30%-60%.
3. the preparation method of a kind of green tea extract according to claim 1, is characterized in that: described green tea is fresh green tea or dry green tea.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410184350.8A CN103999993B (en) | 2014-05-04 | 2014-05-04 | A kind of preparation method of green tea extract |
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| CN201410184350.8A CN103999993B (en) | 2014-05-04 | 2014-05-04 | A kind of preparation method of green tea extract |
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| CN103999993A CN103999993A (en) | 2014-08-27 |
| CN103999993B true CN103999993B (en) | 2015-12-09 |
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| CN104473321B (en) * | 2014-12-02 | 2016-01-20 | 河南中烟工业有限责任公司 | A kind of electronic smoke agent with tea perfume (or spice) and preparation method thereof |
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| WO1989012013A1 (en) * | 1988-05-30 | 1989-12-14 | Ingomar Ritsch | Device for conveying fluid media |
| CN101342019B (en) * | 2008-07-29 | 2011-02-02 | 红云红河烟草(集团)有限责任公司 | Petroleum ether extracted green tea extract, preparation and application thereof |
| CN101322581B (en) * | 2008-07-29 | 2010-09-29 | 红云红河烟草(集团)有限责任公司 | Mineral ether-extracted Pu'er cooked tea extract and preparation and use thereof |
| CN101386631B (en) * | 2008-10-13 | 2012-06-06 | 湘西自治州春天生物技术开发有限公司 | Technique for extracting and separating tea polyphenol from tea-leaf |
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Address after: 233400, No. 7, milk Spring Road, Huaiyuan Economic Development Zone, Anhui, Bengbu Patentee after: Anhui Chinese Herbs & spices Limited by Share Ltd Address before: 233400, No. 7, milk Spring Road, Huaiyuan Economic Development Zone, Anhui, Bengbu Patentee before: Anhui Chinaherb Flavors and Fragrances Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Preparation method for green-tea extractum Effective date of registration: 20190305 Granted publication date: 20151209 Pledgee: Huaiyuan County small and medium-sized enterprises financing Company limited by guarantee Pledgor: Anhui Chinese Herbs & spices Limited by Share Ltd Registration number: 2019340000121 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Date of cancellation: 20200413 Granted publication date: 20151209 Pledgee: Huaiyuan County small and medium-sized enterprises financing Company limited by guarantee Pledgor: ANHUI CHINAHERB FLAVORS & FRAGRANCES Co.,Ltd. Registration number: 2019340000121 |