CN103721438A - 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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- CN103721438A CN103721438A CN201310747536.5A CN201310747536A CN103721438A CN 103721438 A CN103721438 A CN 103721438A CN 201310747536 A CN201310747536 A CN 201310747536A CN 103721438 A CN103721438 A CN 103721438A
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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 Microwave Extraction device and extract the method for elscholtiza.
Background technology
Elscholtiza, belongs to Labiatae herbaceos perennial, medicine-food two-purpose.The volatile oil that contains 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, and in the time of 100 ℃, volatilization, can distill with steam; 51.5 ℃ of fusing points, approximately 233 ℃ of boiling points; Dissolubility 1g is dissolved in about 1000ml water, 1ml ethanol, and bactericidal action is stronger than phenol, and toxicity is low.In elscholtiza herb, also contain flavone compound, there is the functions such as anti-oxidant, anti-ageing, antibacterial, anticancer.Herba Moslae volatile oil is generally taked 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, between microwave source and microwave feed-in mouth, is provided with excitation cavity.But have no the synchronous special microwave extraction element that extracts 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 can simultaneously extract Herba Moslae volatile oil and Flavonoid substances and extracts the method for elscholtiza.
Microwave Extraction device provided by the invention, comprises the microwave extraction tank 3 that is provided with microwave feed-in mouth, and microwave extraction tank 3 tops are connected with condenser 6 and are provided with feedback outlet 4, and spray head 5 is housed on feedback outlet 4; The bottom of microwave extraction tank 3 is provided with the end socket 8 with discharging opening 11, and discharging opening 11 connects feedback outlet 4 by pipeline through pump 12, forms circulation bypass; End socket 8 tops are provided with the baffle plate 9 of perforate, and baffle plate 9 is provided with screen cloth 10 above.
As improvement, pump 12 is crossed triple valve 13 through device for cleaning pipeline and is divided into 2 pipelines, 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 gos deep in microwave extraction tank 3 and is uniformly distributed week within it.
As improvement, feedback outlet 4 is arranged on microwave extraction tank 3 middles, 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 and uses above-mentioned Microwave Extraction device to extract the method for 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 ℃, 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, after finishing, extraction by heat exchanger 16, elscholtiza feed liquid is cooled to below 50 ℃.
The present invention has following advantages and characteristic:
(1) combination technique is novel: adopt Microwave Extraction, by vapour condensation device, refluxed or reclaimed volatile ingredient, realized synchronously carrying out of the volatile ingredients such as Thymol and the extraction of water-soluble medicinal extract; During Microwave Extraction, the dry elscholtiza material major part face that floats on the water, fully do not contact with water, be unfavorable for the stripping of elscholtiza composition, therefore by baffle plate, screen cloth, feedback outlet, spray head and bypass circuit system are set, solved elscholtiza contact with water insufficient, microwave conduct heat inhomogeneous, the problem such as during Microwave Extraction elscholtiza stripping is slow; Baffle plate and screen cloth are set and have also solved the problem that microwave leaks from bottom; Discharging opening also arranges heat exchanger, elscholtiza feed liquid can be cooled to below 50 ℃, guarantees to be difficult for volatilizing away by the Microwave Extraction compositions such as Thymol out.These technical combinations support mutually, and the speed that reaches is fast, cost is low, synchronously realizes the extraction of Thymol and Flavonoid substances by water extraction.
(2) comprehensive utilization of resources: the slag abandoning during conventional extraction essential oil is too many, the loss of effective components of slag the inside is too large; Essential oil basic loss while extracting medicinal extract, and adopt Microwave Extraction device of the present invention, realized the volatile ingredients such as Thymol to extract, also realized the extraction of elscholtiza medicinal extract, elscholtiza resource has obtained comprehensive utilization.
(3) cost is low: adopt this device to extract, with microwave, substitute jacket steam heating, improved the yield of Herba Moslae extract, greatly shorten extraction time, reduced production cost.
(4) solved technical barrier: elscholtiza volatile ingredient adopts hydrodistillation, ethyl acetate, the extraction of benzinum equal solvent, because food-safety problem is difficult to use in field of food, adopts supercritical extract in the past, yielded 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, Microwave Extraction device cheaply, utilize this device can synchronously extract Herba Moslae volatile oil (containing Thymol) and elscholtiza Flavonoid substances, obtain can be used as the Herba Moslae extract of food additives, this extract also can further be processed into food composite preservative.
Accompanying drawing explanation
The structural representation that accompanying drawing 1 is apparatus of the present invention.
The specific embodiment
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, especially contain the plant of volatile oil component, such as wild marjoram, peppermint, purple perilla, wrinkled giant hyssop etc., below take and extract elscholtiza and describe as example.Microwave of the present invention occurs and gatherer all can adopt prior art, for example, adopt the metal can that is provided with microwave feed-in mouth, by nonmetal microwave, passes waveguide cover by microwave feed-in tank body, and preferably microwave feed-in mouth gos deep in tank body and is uniformly distributed week within it.Below in conjunction with accompanying drawing, be described in detail.
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 of being made by 304 stainless steel materials; Microwave generator 1 produces after microwave, by microwave introduction device 2, enters microwave extraction tank 3.Microwave extraction tank 3 is provided with manhole 7 above, is convenient to input and the maintenance of elscholtiza material; Microwave extraction tank 3 above middle is provided with feedback outlet 4, and spray head 5 is housed on feedback outlet 4; Microwave extraction tank 3 is connected with condenser 6 above, and the water vapour producing during extraction and volatile ingredient reclaim 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, by HYDRAULIC CONTROL SYSTEM, opens, and plays the effect of sealing and discharge elscholtiza slag; End socket 8 is provided with baffle plate 9 above, on 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 that stops elscholtiza material, and when extracting, extract can be by baffle plate and screen cloth, and elscholtiza material is blocked on screen cloth.Baffle plate have discharging opening 11 just below, after discharging opening is flexible coupling, connect pump 12, for delivery of elscholtiza feed liquid, pump 12 connects 1 triple valve 13, is divided into 2 pipelines, and a pipeline is through bypass valve 14, directly connect feedback outlet 4, form circulation bypass, allow extract circular flow when Microwave Extraction; Another pipe connects branch road valve 15, then connects heat exchanger 16, by heat exchange, extract is cooled.
When elscholtiza carries out Microwave Extraction, first dry elscholtiza is cut into segment or the pulverizing of 1-2mm, by charging aperture 7, throw in microwave extraction tank 3, add the pure water of 8 times of elscholtiza weight; In order to accelerate extraction rate, pure water first preheats 90 ℃, the cooling water of open cold condenser 6; Then opening microwave generator 1 extracts.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 finishes, 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 below 50 ℃ through heat exchanger 16, is transported to next process and carries out post-processed.
Claims (9)
1. a Microwave Extraction device, comprises the microwave extraction tank (3) that is 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), is equipped with spray head (5) on feedback outlet (4); 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.
2. Microwave Extraction device according to claim 1, is characterized in that pump (12) crosses triple valve (13) through device for cleaning pipeline and be divided into 2 pipelines, and a pipeline connects feedback outlet (4) through bypass valve (14); Another pipeline connects heat exchanger (16) through branch road valve (15).
3. Microwave Extraction device according to claim 1 and 2, is characterized in that described microwave extraction tank (3) is stainless steel material.
4. Microwave Extraction device according to claim 1, is characterized in that microwave feed-in mouth gos deep in microwave extraction tank (3) and is uniformly distributed week within it.
5. Microwave Extraction device according to claim 1 and 2, is characterized in that described feedback outlet (4) is arranged on microwave extraction tank (3) middle, top.
6. Microwave Extraction device according to claim 1, is characterized in that described screen cloth (10) is stainless steel material.
7. according to claim 1,2, one of 4 and 6 described Microwave Extraction devices, it is characterized in that the outlet of described condenser (6) takes back microwave extraction tank (3).
8. right to use requires the Microwave Extraction device described in 1 to extract a method for elscholtiza, it is characterized in that first dry elscholtiza being 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 ℃, 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.
9. the method for extraction elscholtiza according to claim 8, is characterized in that by heat exchanger (16), elscholtiza feed liquid being cooled to below 50 ℃ after extraction finishes.
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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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108970173A (en) * | 2018-08-29 | 2018-12-11 | 云南民族大学 | A kind of production 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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2013
- 2013-12-31 CN CN201310747536.5A patent/CN103721438B/en not_active Expired - Fee Related
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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108970173A (en) * | 2018-08-29 | 2018-12-11 | 云南民族大学 | A kind of production method of implanted Microwave Extraction device |
| 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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| CN103721438B (en) | 2014-12-24 |
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