CN103721438B - Microwave extracting device and method for extracting herba elsholtziae - Google Patents
Microwave extracting device and method for extracting herba elsholtziae Download PDFInfo
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- CN103721438B CN103721438B CN201310747536.5A CN201310747536A CN103721438B CN 103721438 B CN103721438 B CN 103721438B CN 201310747536 A CN201310747536 A CN 201310747536A CN 103721438 B CN103721438 B CN 103721438B
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Abstract
The invention relates to a microwave extracting device. The microwave extracting device comprises a microwave extracting tank (3) with a microwave feed-in hole, wherein the upper part of the microwave extracting tank (3) is connected with a condenser (6) and is provided with a material returning hole (4), the material returning hole (4) is provided with a spray header (5), the lower part of the microwave extracting tank (3) is provided with a sealing head (8) with a discharge hole (11), the discharge hole (11) is connected with the material returning hole (4) by virtue of a pipeline through a pump (12) to form a circulating bypass, the upper part of the sealing head (8) is provided with a baffle (9) with a hole, and a screen mesh (10) is arranged on the baffle (9). With the adoption of the microwave extracting device, volatile components such as thymol and the like and water soluble extractum are synchronously extracted, herba elsholtziae resources are comprehensively utilized, the processing cost is low, and a foundation of application of herba elsholtziae to the field of food additives is laid.
Description
Technical field
The invention belongs to herbal extraction equipment field, be specifically related to a kind of method of Microwave Extraction device and extraction elscholtiza.
Background technology
Elscholtiza, belongs to Labiatae herbaceos perennial, medicine-food two-purpose.Volatile oil containing 1-2% in elscholtiza herb, volatilization main body of oil is Thymol and carvacrol.Thymol has another name called thymol, molecular weight 150, and colourless transparent crystal, has off-odor, volatilizees, can distill with steam 100 DEG C time; Fusing point 51.5 DEG C, boiling point about 233 DEG C; Dissolubility 1g is dissolved in about 1000ml water, 1ml ethanol, and bactericidal action is stronger than phenol, and toxicity is low.Also containing flavone compound in elscholtiza herb, there is the functions such as anti-oxidant, anti-ageing, antibacterial, anticancer.Herba Moslae volatile oil generally takes steam distillation, supercritical extraction and ultrasonic extraction, and Flavonoid substances adopts solvent extraction.
Publication number is CN2788171, and name is called microwave extraction tank, discloses a kind of microwave extraction tank, includes extraction tank body, microwave feed-in mouth, and microwave passes waveguide cover, is provided with excitation cavity between microwave source and microwave feed-in mouth.But have no the synchronous special microwave extraction element extracting Herba Moslae volatile oil and Flavonoid substances of report.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Microwave Extraction device that simultaneously can extract Herba Moslae volatile oil and Flavonoid substances and the method extracting elscholtiza.
Microwave Extraction device provided by the invention, comprises the microwave extraction tank 3 being provided with microwave feed-in mouth, and microwave extraction tank 3 top is connected with condenser 6 and is provided with feedback outlet 4, feedback outlet 4 is equipped with spray head 5; The bottom of microwave extraction tank 3 is provided with the end socket 8 of band discharging opening 11, and discharging opening 11 connects feedback outlet 4 by pipeline through pump 12, forms circulation bypass; End socket 8 top is provided with the baffle plate 9 of perforate, and baffle plate 9 is provided with screen cloth 10 above.
As improvement, pump 12 is divided into 2 pipelines through pipeline by triple valve 13, and a pipeline connects feedback outlet 4 through bypass valve 14; Another pipeline connects heat exchanger 16 through branch road valve 15.
As improvement, microwave extraction tank 3 is stainless steel material.
As improvement, microwave feed-in mouth to go deep in microwave extraction tank 3 and is evenly distributed on its inner circumferential.
As improvement, feedback outlet 4 is arranged on middle, microwave extraction tank 3 top.
As improvement, screen cloth 10 is stainless steel material.
As improvement, the outlet of condenser 6 takes back microwave extraction tank 3.
The present invention also provides the method using above-mentioned Microwave Extraction device to carry out extracting elscholtiza, first dry elscholtiza is cut into segment or pulverizing, drops in microwave extraction tank 3, adds 6-10 doubly to the pure water of elscholtiza weight, extracts; When temperature of charge arrives more than 60 DEG C, open pump 12, make elscholtiza feed liquid through discharging opening 11, pump 12, feedback outlet 4, spray head 5, get back in microwave extraction tank 3, form feed liquid Sprayer Circulation, start timing, control Microwave Extraction time 5-60 minute.
As improvement, extract after terminating, by heat exchanger 16, elscholtiza feed liquid is cooled to less than 50 DEG C.
The present invention has following advantages and characteristic:
(1) combination technique is novel: adopt Microwave Extraction, refluxed or reclaim volatile ingredient by vapour condensation device, and what achieve that the volatile ingredients such as Thymol and water-soluble medicinal extract extracts synchronously carries out; During Microwave Extraction, dry elscholtiza material major part floats on the water face, fully do not contact with water, be unfavorable for the stripping of elscholtiza composition, therefore by arranging baffle plate, screen cloth, feedback outlet, spray head and bypass circuit system, the problems such as solving elscholtiza, contact the heat transfer of insufficient, microwave with water uneven, and during Microwave Extraction elscholtiza stripping is slow; Baffle plate and screen cloth are set and also solve the problem that microwave leaks from bottom; Discharging opening also arranges heat exchanger, elscholtiza feed liquid can be cooled to less than 50 DEG C, guarantees not easily to be volatilized away by compositions such as Microwave Extraction Thymols out.These technical combinations are supported mutually, and the speed that reaches is fast, cost is low, synchronously realize the extraction of Thymol and Flavonoid substances by water extraction.
(2) comprehensive utilization of resources: the slag abandoned during traditional extraction essential oil is too many, and the loss of effective components inside slag is too large; Essential oil basic loss during extraction medicinal extract, and adopt Microwave Extraction device of the present invention, achieving the volatile ingredients such as Thymol extracts, and also achieve the extraction of elscholtiza medicinal extract, elscholtiza resource obtains comprehensive utilization.
(3) cost is low: adopt this device to extract, and substitutes jacket steam heating, improve the yield of Herba Moslae extract, greatly shorten extraction time, reduce production cost with microwave.
(4) solve technical barrier: elscholtiza volatile ingredient adopts the extraction of hydrodistillation, ethyl acetate, benzinum equal solvent in the past, because food-safety problem is difficult to use in field of food, adopt supercritical extract, yield poorly, cost is too high.And the present invention does not have not with an organic solvent, cost is low, for the application of elscholtiza in food additives field lays the foundation.
To sum up, the invention provides a kind of fast, the Microwave Extraction device of low cost, utilize this device synchronously can extract Herba Moslae volatile oil (containing Thymol) and elscholtiza Flavonoid substances, obtaining can as the Herba Moslae extract of food additives, and this extract also can be processed into food composite preservative further.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of apparatus of the present invention.
Detailed description of the invention
It should be noted that, apparatus of the present invention are not only applicable to elscholtiza and extract, and are also applicable to the extraction of other plant, and the plant especially containing volatile oil component, such as wild marjoram, peppermint, purple perilla, wrinkled giant hyssop etc., be described to extract elscholtiza below.Microwave of the present invention occurs and gatherer all can adopt prior art, such as, adopt the metal can being provided with microwave feed-in mouth, and by nonmetal microwave biography waveguide cover by microwave feed-in tank body, preferred microwave feed-in mouth to go deep in tank body and is evenly distributed on its inner circumferential.Be described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, Microwave Extraction device of the present invention, comprises microwave generator 1, microwave introduction device 2, the microwave extraction tank 3 be made up of 304 stainless steel materials; After microwave generator 1 produces microwave, enter microwave extraction tank 3 by microwave introduction device 2.Microwave extraction tank 3 is provided with manhole 7 above, is convenient to input and the maintenance of elscholtiza material; Microwave extraction tank 3 is provided with feedback outlet 4 in middle above, feedback outlet 4 is equipped with spray head 5; Microwave extraction tank 3 is connected with condenser 6 above, and the water vapour produced during extraction and volatile ingredient are reclaimed by condenser 6, also play the effect of venting, and the outlet of condenser 6 can directly take back microwave extraction tank 3.The bottom of microwave extraction tank 3 is provided with arc end socket 8, is opened by HYDRAULIC CONTROL SYSTEM, plays the effect of sealing and discharge elscholtiza slag; End socket 8 is provided with baffle plate 9 above, and baffle plate 9 has perforate; Baffle plate 9 is provided with 80-300 order stainless steel mesh 10 above; Baffle plate and screen cloth play the effect stopping elscholtiza material, and when extracting, extract can by baffle plate and screen cloth, and elscholtiza material is then blocked on screen cloth.Baffle plate have discharging opening 11 just below, connect pump 12 after discharging opening is flexible coupling, for carrying elscholtiza feed liquid, pump 12 connects 1 triple valve 13, is divided into 2 pipelines, and a pipeline is through bypass valve 14, direct connection feedback outlet 4, forms circulation bypass, allows extract circular flow when Microwave Extraction; Another pipe connects branch road valve 15, then connects heat exchanger 16, by heat exchange, is cooled by extract.
When elscholtiza carries out Microwave Extraction, first dry elscholtiza is cut into segment or the pulverizing of 1-2mm, throws in microwave extraction tank 3 by charging aperture 7, add the pure water of 8 times of elscholtiza weight; In order to accelerate extraction rate, pure water first preheats 90 DEG C, the cooling water of open cold condenser 6; Then open microwave generator 1 to extract.Open bypass valve 14, open pump 12, allow the discharging opening 11 of elscholtiza feed liquid below baffle plate 9 through pump 12, bypass, feedback outlet 4, spray head 5, get back in microwave extraction tank 3, form feed liquid Sprayer Circulation.Now start timing, control 20 minutes Microwave Extraction time.After extraction time terminates, first close microwave generator 1, close pump 12, close bypass valve 14, stop circulation, open the cooling water of heat exchanger 16 on discharging opening 11, open branch road valve 15, open pump 12, elscholtiza feed liquid is cooled to less than 50 DEG C through heat exchanger 16, is transported to next process and carries out post-processed.
Claims (5)
1. a Microwave Extraction device, comprises the microwave extraction tank (3) being provided with microwave feed-in mouth, it is characterized in that:
Microwave extraction tank (3) top is connected with condenser (6) and is provided with feedback outlet (4), feedback outlet (4) is equipped with spray head (5); Described feedback outlet (4) is arranged on microwave extraction tank (3) middle, top; The bottom of microwave extraction tank (3) is provided with the end socket (8) of band discharging opening (11), and discharging opening (11) connects feedback outlet (4) by pipeline through pump (12), forms Sprayer Circulation; End socket (8) top is provided with the baffle plate (9) of perforate, and baffle plate (9) is provided with screen cloth (10) above;
Pump (12) is divided into 2 pipelines through pipeline by triple valve (13), and a pipeline connects feedback outlet (4) through bypass valve (14); Another pipeline connects heat exchanger (16) through branch road valve (15); The outlet of described condenser (6) takes back microwave extraction tank (3).
2. according to the Microwave Extraction device described in claim 1, it is characterized in that: described microwave extraction tank (3) is stainless steel material.
3. according to the Microwave Extraction device described in claim 1, it is characterized in that: microwave feed-in mouth to go deep in microwave extraction tank (3) and is evenly distributed on its inner circumferential.
4. according to the Microwave Extraction device described in claim 1, it is characterized in that: described screen cloth (10) is stainless steel.
5. use the Microwave Extraction device described in claim 1 to carry out extracting a method for elscholtiza, it is characterized in that:
First dry elscholtiza is cut into segment or pulverizing, drops in microwave extraction tank (3), add 6-10 doubly to the pure water of elscholtiza weight, extract; When temperature of charge arrives 60 DEG C, open pump (12), make elscholtiza feed liquid through discharging opening (11), pump (12), feedback outlet (4), spray head (5), get back in microwave extraction tank (3), form feed liquid Sprayer Circulation, start timing, control Microwave Extraction time 5-60 minute; By heat exchanger (16), elscholtiza feed liquid is cooled to less than 50 DEG C after extraction terminates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310747536.5A CN103721438B (en) | 2013-12-31 | 2013-12-31 | Microwave extracting device and method for extracting herba elsholtziae |
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| CN201310747536.5A CN103721438B (en) | 2013-12-31 | 2013-12-31 | Microwave extracting device and method for extracting herba elsholtziae |
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| CN103721438A CN103721438A (en) | 2014-04-16 |
| CN103721438B true CN103721438B (en) | 2014-12-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104312729A (en) * | 2014-10-23 | 2015-01-28 | 湖南省百里香天然生物制品开发有限公司 | Extracting method of elsholtia containing 0.5% to 1.5% of thymol |
| CN108970173B (en) * | 2018-08-29 | 2024-01-30 | 云南民族大学 | Manufacturing method of implanted microwave extraction device |
| CN116083166A (en) * | 2023-02-28 | 2023-05-09 | 倡威科技有限公司 | System and method for extracting animal fat with assistance of microwaves |
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| CN201470150U (en) * | 2009-07-29 | 2010-05-19 | 南京中医药大学 | Integrated microwave extraction-ultrafiltration membrane separator for purification of Chinese traditional medcine |
| CN101850190A (en) * | 2009-04-01 | 2010-10-06 | 郑小非 | Dry microwave extraction device |
| CN202052349U (en) * | 2011-03-28 | 2011-11-30 | 张海 | Ultrasonic wave and microwave synergy reinforcing circulation device for extracting supindus-saponin |
| CN203634854U (en) * | 2013-12-31 | 2014-06-11 | 湖南省百里香天然生物制品开发有限公司 | Microwave extracting device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850190A (en) * | 2009-04-01 | 2010-10-06 | 郑小非 | Dry microwave extraction device |
| CN201470150U (en) * | 2009-07-29 | 2010-05-19 | 南京中医药大学 | Integrated microwave extraction-ultrafiltration membrane separator for purification of Chinese traditional medcine |
| CN202052349U (en) * | 2011-03-28 | 2011-11-30 | 张海 | Ultrasonic wave and microwave synergy reinforcing circulation device for extracting supindus-saponin |
| CN203634854U (en) * | 2013-12-31 | 2014-06-11 | 湖南省百里香天然生物制品开发有限公司 | Microwave extracting device |
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