CN102250689A - Equipment and method for extracting perfume plant essential oil by reduced pressure steam distillation - Google Patents
Equipment and method for extracting perfume plant essential oil by reduced pressure steam distillation Download PDFInfo
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Abstract
The invention provides a piece of equipment and a method for extracting volatile essential oil from natural perfume plants by using the technology of reduced pressure steam distillation extraction. The equipment provided in the invention comprises a steam distillation system and a vacuum system, wherein the steam distillation system is composed of a steam generator, a material retort, a condenser, an oil-water separator and connecting pipelines, and the vacuum system comprises a vacuum unit or a suction pump, a pressure regulator valve, connecting pipelines and the like. The method comprises the following steps that: plant raw materials to be extracted for essential oil in the material retort is controlled to be at a certain temperature and under certain pressure so as to reduce changes of aroma components in perfume plants in the process of extraction as much as possible; extracted volatile components of essential oil is mixed with steam to form mixed steam of water and oil; the mixed steam enters into the condenser for condensation and then enters into the oil-water separator for separation; an oil phase is collected after separation and the oil phase is plant essential oil; the separated water phase is flower water. The essential oil and flower water obtained by the extraction method have pure aroma, suffer little loss for head volatile thereof, and are applicable to the industries of perfumes, essence, cosmetics, daily chemicals, etc.
Description
Technical field
The present invention relates to a kind of equipment and method of extracting the spice berry essential oil.More specifically, the present invention relates to a kind of employing reduced steam extractive technique, from natural perfume plant, extract the equipment and the method for volatile essential oil.
Background technology
The processing of spice berry essential oil is an ancient industry.The ancient egypt people extracts volatile oil and cures the disease, is sacrificed to a god from plants such as herbaceous plant, fruit, vegetables, xylophyta class and flower, also be applied in the sanitas of making mummy; The Greek is a disciple of Egypt, uses essential oil in makeup, medical treatment in a large number and keeps off infection; Christian era last a century, the Roman uses plants essential oil in when massage, with Crusades's eastward fight, spices, essential oil knowledge is also begun to propagate to Europe.But because essential oil itself is extremely rare and precious, essential oil also only is aristocracy's the luxury goods of specially enjoying in the quite long phase of history.In recent years, along with the increase of people for the demand of natural additive for foodstuff, and people are for the intensification of the degree of awareness of aromatotherapy, and the spice berry essential oil has caused people's attention more and more.The plant perfume essential oil of taking from the Nature has powerful sterilizing function, can greatly reduce and eliminate airborne bacterium and virus.With essential oil bacteriological protection, virus, not only do not have the toxic side effect of common drug, and primary plant taste can allow the people that unlimited fine impression is arranged, the more important thing is in old man and child and all can use safely, and the method simple possible.
Along with being showing improvement or progress day by day of modern abstraction technique, the tremendous development of flowers agricultural, the progressively increase of people's income, essential oil is also slowly come into common people house.Containing the volatile aroma composition in the spice berry can be extracted out by the method for chemistry and physics, and is widely used in fields such as chemical industry, medicine, health care, makeup, foodstuff additive, washing composition, gardens sweetening treatment.The whole world has spice berry kind more than 3000, the reaching more than 400 kinds of artificial growth, and the volume of world trade of spice berry also is stable ascendant trend in recent years.Modern study shows that spice berry also contains important medicinal ingredients and rich nutrient contents except that having pleasant aroma component, also has many spice berries to have very high ornamental value.Especially the odoriferous herbs plant enjoyed favor at Korea S, TaiWan, China in recent years American-European and Japanese, and tempo is exceedingly fast.Because the sharp increase of patients with depression and spreading unchecked of Respirovirus sexually transmitted disease, modern medicine study is placed high hopes to spice berry, add the sterilization and the anti-oxidation efficacy of spice berry uniqueness, external many research institutions have strengthened R﹠D intensity to spice berry research.Vast territory and abundant resources in China, has abundant spice berry resource, but only occupying the minority of effectively being developed except that the processed utilization of minority kind, much all is to sell with raw material form, and value-added content of product is difficult to embody.
Essential oil also claims volatile oil, is that a class that is present in the plant materials has aromatic odour, can volatilize the general name of the oily liquids that can come out with wet distillation at normal temperatures.Plants essential oil is extensive at vegitabilia's distributed pole, and wild spices that contains essential oil and the medicinal plant with cultivation of China has kind more than 300.Plants essential oil is present in various tissues such as glandular hairs, grease chamber, oil pipe, secretory cell or the resin canal of plant and the organ, and great majority become oil droplets to exist, and also has and resin, phlegmatic temperament coexistence person.The amount that contains essential oil in the plant also has minority content up to about 20% generally below 1%.Plants essential oil have more eliminate the phlegm, cough-relieving, relieving asthma, wind dispelling, be good for the stomach, effect such as analgesic, analgesia, antisepsis and anti-inflammation: for example, Oils, bergamot peel all has restraining effect to gonococcus, glucose coccus, intestinal bacteria and diphtheria bacterium; Syzygium aromaticum stem oil has toponarcosis, analgesic effect; That spearmint oil has is refrigerant, wind dispelling, antiinflammation; Jasmin oil has excited effect etc.That uses already clinically has camphor, borneol, mentha camphor, an Eugenol etc.What popular in the world aromatotherapy at present mainly referred to is exactly to utilize the essential oil that extracts in the spice berry, by a kind of method for the treatment of disease of massaging, means such as suction is smelt, water-bath are carried out health, beauty treatment and adjusting mood.Plants essential oil is the important component part of natural essence, spices, because natural perfume has irreplaceable, the unique note of synthetic perfume, and scarcely has reason such as toxic side effect, and its production is sold well.In addition, plants essential oil is widely used at aspects such as medicine, nursing, also is crucial raw material in makeup, daily necessities, foodstuffs industry and chemical industry.For this reason, the plants essential oil extraction separation has become the focus of research plants essential oil, and also soaring year by year, specification of quality is also more and more higher to the demand of plants essential oil.
Traditionally, the most frequently used method of separating plant essential oil is steam distillation, and this method equipment and simple to operate, less investment are adapted at remote districts and raw material ratio than the regional use of dispersive, is still China at present and uses comparatively general method in essential oil is produced.According to its technology, equipment difference, it can be further divided into water distillation, distilling above water and wet distillation again.Water distillation is after spice berry is soaked, and direct heating distillation water outlet and essential oil after the cooling, are isolated essential oil.This method is simple and convenient, but plant material directly is heated, and some composition of essential oil is decomposed and makes the part material coking, influences the quality of essential oil.Distilling above water and wet distillation all be will be to be extracted spice berry put into distiller after pulverizing, along with the saturated steam of heat material bed by plant perfume from the bottom up constantly, essential oil distillates with water vapour.It has avoided the overheated or coking in the still-process.Wet distillation is present most widely used a kind of method, is applicable to the extraction of the composition that solubleness in volatile, the water is little.Equipment is simple, operation easily, cost are low.But, it is higher that traditional wet distillation also exists service temperature, can cause the thermolysis of thermographic compound in the essential oil and the shortcomings such as hydrolysis of facile hydrolysis composition, problem based on the wet distillation existence, people begin to be devoted to improve distillation plant, the pressurization string having occurred steams, continuous still battery, the multiple fractional distillation column distillation of band, and form such as the quick wet distillation of worm-gear type, these equipment respectively have its advantage and characteristics, the quality or the production efficiency of the essential oil of producing are improved, but the hydrolysis problem under existing thermolysis equally and water vapour high temperature contacting, the also corresponding increase of investment of equipment simultaneously.
Summary of the invention
Exist the quality instability of the spice berry essential oil that is extracted at prior art, the composition loss of thermo-sensitivity and facile hydrolysis is serious, cause the problems such as the bad change of local flavor of natural perfume plant, the invention provides the equipment that a cover includes the reduced steam distillation extraction spice berry essential oil of wet distillation system and vacuum system, this equipment is different from traditional wet distillation and adopts steam to be entered by the bottom, material bed by what extract, fully contact with spice berry to be extracted, disperse and gasification, the water that forms and the mixed vapour of volatile essential oil are derived from top, to import from the steam of steam generator top but adopt by retort, it is even from top to bottom after sparger is with the gas homodisperse, stably by waiting to extract the material bed of material, the mixed vapour of resulting water and volatile essential oil is derived from the bottom vapor outlet port of retort, after the condenser cooling, enter in the water-and-oil separator and separate, obtain the spices essential oil.Owing to adopt decompression technology in the still-process, make the corresponding temperature of extracting greatly reduce, therefore, this method has overcome the higher defective of distillation temperature of traditional water steam distillation, makes the thermo-sensitivity aroma component kept well; And shortened the duration of contact of mixed vapour under comparatively high temps of water and volatile essential oil, suppressed effectively that the hydrolysis phenomenon of facile hydrolysis composition takes place in the essential oil; Simultaneously, isolate the oxidation of the Hua Shuizhong behind the essential oil, the composition that becomes sour also reduces significantly, can be used in the perfuming of related products.This method had both improved the flavor quality of the essential oil of producing, improved the flavor quality that separates flower water behind the essential oil again, make it can be directly used in the perfuming of related products, not not with an organic solvent, possess characteristics such as product no solvent residue, pollution-free, biologic activity height in the production process, have that investment in production equipment is little, the production efficiency height in the unit time, energy consumption is low, flexible operation, the product flavouring essence quality is good, has kept the advantages such as local flavor of natural perfume plant substantially.
To achieve these goals, the equipment of a kind of reduced steam distillation extraction spice berry essential oil provided by the present invention adopts following technical scheme to be achieved.
A kind of equipment of reduced steam distillation extraction spice berry essential oil is characterized in that comprising:
The wet distillation system, by steam generator, the material retort, condenser, water-and-oil separator and connecting pipeline are formed, be used for spice berry raw material properties according to essential oil to be extracted, controlling corresponding temperature and pressure changes in leaching process with the aroma component that reduces spice berry, after the distillation beginning, raw material is by the steam-heated cal(l)andria from steam generator, in heat-processed, the water vapour of heat constantly penetrates into and carries out the diffusing effect of water in the raw tissue, make wherein essential oil class volatile component and water vapour formation water and oily mixed vapour, this steam is after condenser condenses, distillate enters water-and-oil separator, can separated and collected obtain corresponding plants essential oil; Isolate the colored water that water is gained after filtering that distillates behind the essential oil;
Vacuum system is made up of vacuum unit or off-gas pump, pressure regulator valve and connecting pipeline etc., is used for the vapor pressure and the corresponding temperature of Controlling System.
The steam generator of described reduced steam Distallation systm is steam boiler or the steamer with heating unit.
The material retort top of described reduced steam Distallation systm is the steam admission port, and the bottom is a vapor outlet port, and the bottom of retort is conical, is used for depositing a small amount of water of condensation that the still-process condensation is got off; The steam that steam generator produced of described reduced steam Distallation systm enters into the material retort by pipe connecting from top, and the steam coil by perforate or the sieve plate material that makes steam enter in the material pot equably to be loaded; Enter in the water-and-oil separator after condenser condenses through the steam behind the distilling material.
The vacuum system of described reduced steam Distallation systm is made up of vacuum unit, pressure regulator valve and connecting pipeline; For reducing the volatile component loss in the material, protection vacuum unit need be installed cold-trap, drying tower, acid absorption column and hydrocarbons absorption tower in the middle of the pipeline that the vacuum unit is connected with condenser.
The vacuum system of described reduced steam Distallation systm is by jet-type vacuum unit, and pressure regulator valve and connecting pipeline are formed.
The vacuum system of described reduced steam Distallation systm is used vacuum pump by the circulation ability of swimming more, and pressure regulator valve and connecting pipeline are formed.
The equipment of described reduced steam distillation extraction spice berry essential oil can pass through the vacuum tightness of the simple adjustment Controlling System of vacuum system by-pass valve control, flexible and convenient operation, to adapt to different properties spices extracts essential oil, be a general-purpose equipment with spice berry essential oil production of broad applicability.
The method of a kind of reduced steam distillation extraction spice berry essential oil provided by the present invention adopts following technical scheme to be achieved.
A kind of method of reduced steam distillation extraction spice berry essential oil includes following steps:
(1) spice berry to be extracted is crushed accordingly, cuts off, grinds according to the characteristic of material or break process after, pack into equably in the material retort, the characteristic that the height of charging and degree of tightness will be considered material itself, steam the dilatable material in back and should adorn the 70-80% that is equivalent to the retort volume, generally should fill in more than 80% of material retort volume to fresh feed, and note evenly compressing, prevent the steam short circuit;
(2) steam coil or the sieve plate by perforate makes water vapour progressively add thermal material layer equably from top to bottom, simultaneously the hot water that also progressively formed by bed of material condensation of saturated vapo(u)r constantly infiltrates material tissue, and material has formed good water and loose and act in the process of the heating of steam, diffusion, condensation; Along with constantly entering of water vapour, the vapor outlet port of profit mixed vapour through the material pot bottom imports in the condenser, and cooling promptly obtains needed essential oil after water-and-oil separator separates, and isolated water is Hua Shui; The water of condensation that contains derived essential oil in the material on a small quantity that is condensed flows in the water of condensation receiving tank through material pot, therefrom take out when waiting to receive certain volume, through water-and-oil separator separation a small amount of essential oil wherein, after handling, decolouring obtains required essential oil, and isolated water is Hua Shui;
(3) in order to reduce the loss of fragrance material, vacuum pump adopts the circulation ability of swimming, recirculated water has dissolved the perfume composition that gets off without the condenser total condensation in a large number in the resulting recirculated water after recycling in 6-8 hour, collect promptly to obtain required colored fishery products after this part recirculated water filters.
In the method for described reduced steam distillation extraction spice berry essential oil, import from the saturated steam of steam generator top from retort, contact the water of condensation receptor that a small amount of water of condensation that the back condensation gets off has directly entered into the retort bottom with spice berry, avoided because heat steam enters from the bottom, the water of condensation that contains the volatile component in the material that cools down is earlier heated repeatedly and makes aroma component wherein that bad change take place.
The method of described reduced steam distillation extraction spice berry essential oil can be widely used in the extraction of the volatile essential oil composition of the various natural phant that comprise lavandula angustifolia, rose, Thymus vulgaris, Herba Dracocephali, tonka bean camphor, hops, Radix Angelicae Sinensis, Xinjiang Jehol Ligusticum Rhizome, saussurea involucrata, Chinese ephedra, A Wei, Herba Sophorae alopecuroidis, sweet basil, peppermint etc.
The obtained beneficial effect of the present invention is:
1. provided by the present invention is a kind of equipment and method of reduced steam distillation extraction spice berry essential oil, compare with traditional wet distillation technology, the resulting product of this equipment and method can guarantee that production cost is approaching with it, but the product natural quality is better, the spice berry aroma component of thermo-sensitivity and facile hydrolysis can be more complete preservation, and the smell that oxidation do not occur and become sour of the colored water behind the separation essential oil, can be directly used in the perfuming of related products, greatly improved economic benefit.
2. provided by the present invention is in a kind of equipment and method of reduced steam distillation extraction spice berry essential oil, employed vacuum system is if adopt circulation ability of swimming vacuum system, then can dissolve in the recirculated water with the absorption condensation process in the total condensation perfume molecules of getting off not, like this through after a while absorption, recirculated water can be emitted, use as flower water after filtration with after the purifying treatment, and a contained fragrant constituents is more in this part flower water, natural fragrance is more abundant.
3. the present invention is that to the method for traditional wet distillation one improves and improves, and does not use any poisonous, obnoxious flavour and solvent in the production process, and the product no solvent residue is simple to operate, production efficiency is high, compliance with environmental protection requirements.
4. the equipment of a kind of reduced steam distillation extraction spice berry essential oil provided by the present invention, invest little, use flexibly, characteristics such as simple are installed, and can regulate processing parameter easily by the vacuum tightness of the hierarchy of control to dissimilar raw materials, it is wide to have suitability, can change range of product according to the difference in season.
Embodiment
Adopt the mode of specific embodiment to explain the present invention particularly below, but the present invention is not limited to embodiment.
Embodiment 1
After the pulverizing of 300g lavandula angustifolia dried flower, in the material retort of packing into equably, the height of charging is 80% of a retort, and evenly compresses, and prevents the steam short circuit.Steam coil or sieve plate by perforate make the water vapour from vapour generator progressively add thermal material layer equably from top to bottom, the hot water that the while saturated vapo(u)r is also progressively formed by bed of material condensation constantly infiltrates the material tissue, and material has formed the diffusing effect of good water in the process of vapor diffusion, condensation; The effect with vacuum pump of constantly entering along with water vapour, the vapor outlet port of profit mixed vapour through the material pot bottom imports to fully condensation in the condenser, cooled oil-water mixture receives in the water-and-oil separator, obtains the crude product of essential oil after water-and-oil separator separates; The water of condensation that contains derived essential oil in the material on a small quantity that is condensed flows in the water of condensation receiving tank through material pot, therefrom takes out when waiting to receive certain volume, separates the crude product of a small amount of essential oil wherein through water-and-oil separator.After so extracting 1.5h, merge the above-mentioned two portions essential oil crude product that obtains, after technology refinement treatment such as dehydration, decolouring and filtration, obtain the 4.37g essential oil product.The about 800mL of the water of collection after oily water separation is the colored fishery products of gained after the filtration.
Embodiment 2
The half whole strain of 300g lavandula angustifolia is cut into 2-3cm, and in the material retort of packing into equably after the crushing a little, the height of charging is the 80-90% of retort, and evenly compresses, and prevents the steam short circuit.Steam coil or sieve plate by perforate make the water vapour from vapour generator progressively add thermal material layer equably from top to bottom, the hot water that the while saturated vapo(u)r is also progressively formed by bed of material condensation constantly infiltrates the material tissue, and material has formed the diffusing effect of good water in the process of vapor diffusion, condensation; The effect with vacuum pump of constantly entering along with water vapour, the vapor outlet port of profit mixed vapour through the material pot bottom imports to fully condensation in the condenser, cooled oil-water mixture receives in the water-and-oil separator, obtains the crude product of essential oil after water-and-oil separator separates; The water of condensation that contains derived essential oil in the material on a small quantity that is condensed flows in the water of condensation receiving tank through material pot, therefrom takes out when waiting to receive certain volume, separates the crude product of a small amount of essential oil wherein through water-and-oil separator.After so extracting 1.5h, merge the above-mentioned two portions essential oil crude product that obtains, after technology refinement treatment such as dehydration, decolouring and filtration, obtain the 3.15g essential oil product.The about 800mL of the water of collection after oily water separation is the colored fishery products of gained after the filtration.
Embodiment 3
With the half whole strain of 5kg lavandula angustifolia, pack into equably in the material retort, the height of charging is 80% of a retort, and evenly compress, prevent that the steam short circuit from making the water vapour from vapour generator progressively add thermal material layer equably from top to bottom by the steam coil or the sieve plate of perforate, the hot water that the while saturated vapo(u)r is also progressively formed by bed of material condensation constantly infiltrates the material tissue, and material has formed the diffusing effect of good water in the process of vapor diffusion, condensation; The effect with vacuum pump of constantly entering along with water vapour, the vapor outlet port of profit mixed vapour through the material pot bottom imports to fully condensation in the condenser, cooled oil-water mixture receives in the water-and-oil separator, obtains the crude product of essential oil after water-and-oil separator separates; The water of condensation that contains derived essential oil in the material on a small quantity that is condensed flows in the water of condensation receiving tank through material pot, therefrom takes out when waiting to receive certain volume, separates the crude product of a small amount of essential oil wherein through water-and-oil separator.After so extracting 2h, merge the above-mentioned two portions essential oil crude product that obtains, after technology refinement treatment such as dehydration, decolouring and filtration, obtain the 47.5g essential oil product.The about 10kg of the water of collection after oily water separation is the colored fishery products of gained after the filtration.
Embodiment 4
After the pulverizing of 500kg lavandula angustifolia, pack into equably in the material retort, the height of charging is the 80-90% of retort, and evenly compress, prevent that the steam short circuit from making the water vapour from vapour generator progressively add thermal material layer equably from top to bottom by the steam coil or the sieve plate of perforate, the hot water that the while saturated vapo(u)r is also progressively formed by bed of material condensation constantly infiltrates the material tissue, and material has formed the diffusing effect of good water in the process of vapor diffusion, condensation; The effect with vacuum pump of constantly entering along with water vapour, the vapor outlet port of profit mixed vapour through the material pot bottom imports to fully condensation in the condenser, cooled oil-water mixture receives in the water-and-oil separator, obtains the crude product of essential oil after water-and-oil separator separates; The water of condensation that contains derived essential oil in the material on a small quantity that is condensed flows in the water of condensation receiving tank through material pot, therefrom takes out when waiting to receive certain volume, separates the crude product of a small amount of essential oil wherein through water-and-oil separator.After so extracting 2.5h, merge the above-mentioned two portions essential oil crude product that obtains, after technology refinement treatment such as dehydration, decolouring and filtration, obtain the 5.36kg essential oil product.The water of collection after oily water separation, the 1300kg that is gained after the filtration spends water.After distillation finishes, collect the 50kg recirculated water in the circulating water system, be Hua Shui after the filtration.
Embodiment 5
After the pulverizing of 5kg hops, pack into equably in the material retort, the height of charging is the 80-90% of retort, and evenly compress, prevent that the steam short circuit from making the water vapour from vapour generator progressively add thermal material layer equably from top to bottom by the steam coil or the sieve plate of perforate, the hot water that the while saturated vapo(u)r is also progressively formed by bed of material condensation constantly infiltrates the material tissue, and material has formed the diffusing effect of good water in the process of vapor diffusion, condensation; The effect with vacuum pump of constantly entering along with water vapour, the vapor outlet port of profit mixed vapour through the material pot bottom imports to fully condensation in the condenser, cooled oil-water mixture receives in the water-and-oil separator, obtains the crude product of essential oil after water-and-oil separator separates; The water of condensation that contains derived essential oil in the material on a small quantity that is condensed flows in the water of condensation receiving tank through material pot, therefrom takes out when waiting to receive certain volume, separates the crude product of a small amount of essential oil wherein through water-and-oil separator.After so extracting 2h, merge the above-mentioned two portions essential oil crude product that obtains, after technology refinement treatment such as dehydration, decolouring and filtration, obtain the 139.5g essential oil product.The about 11kg of the water of collection after oily water separation is the colored fishery products of gained after the filtration.
Claims (10)
1. the equipment of a reduced steam distillation extraction spice berry essential oil is characterized in that comprising:
The wet distillation system, by steam generator, the material retort, condenser, water-and-oil separator and connecting pipeline are formed, be used for spice berry raw material properties according to essential oil to be extracted, controlling corresponding temperature and pressure changes in leaching process with the aroma component that reduces spice berry, after the distillation beginning, raw material is by the steam-heated cal(l)andria from steam generator, in heat-processed, the water vapour of heat constantly penetrates into and carries out the diffusing effect of water in the raw tissue, make wherein essential oil class volatile component and water vapour formation water and oily mixed vapour, this steam is after condenser condenses, distillate enters water-and-oil separator, can separated and collected obtain corresponding plants essential oil; Isolate the colored water that water is gained after filtering that distillates behind the essential oil;
Vacuum system is made up of vacuum unit or off-gas pump, pressure regulator valve and connecting pipeline etc., is used for the vapor pressure and the corresponding temperature of Controlling System.
2. equipment according to claim 1, the steam generator that it is characterized in that described reduced steam Distallation systm are steam boiler or the steamer with heating unit.
3. equipment according to claim 1, the material retort top that it is characterized in that described reduced steam Distallation systm is the steam admission port, the bottom is a vapor outlet port, and the bottom of retort is conical, is used for depositing a small amount of water of condensation that the still-process condensation is got off; The steam that steam generator produced of described reduced steam Distallation systm enters into the material retort by pipe connecting from top, and the steam coil by perforate or the sieve plate material that makes steam enter in the material pot equably to be loaded; Enter in the water-and-oil separator after condenser condenses through the steam behind the distilling material.
4. equipment according to claim 1 is characterized in that the vacuum system of described reduced steam Distallation systm is made up of vacuum unit, pressure regulator valve and connecting pipeline; For reducing the volatile component loss in the material, protection vacuum unit need be installed cold-trap, drying tower, acid absorption column and hydrocarbons absorption tower in the middle of the pipeline that the vacuum unit is connected with condenser.
5. equipment according to claim 1, the vacuum system that it is characterized in that described reduced steam Distallation systm are by jet-type vacuum unit, and pressure regulator valve and connecting pipeline are formed.
6. equipment according to claim 1 is characterized in that the vacuum system of described reduced steam Distallation systm is used vacuum pump by the circulation ability of swimming more, and pressure regulator valve and connecting pipeline are formed.
7. equipment according to claim 1, it is characterized in that the equipment of described reduced steam distillation extraction spice berry essential oil can pass through the vacuum tightness of the simple adjustment Controlling System of vacuum system by-pass valve control, flexible and convenient operation, to adapt to different properties spices extracts essential oil, be a general-purpose equipment with spice berry essential oil production of broad applicability.
8. the method for a reduced steam distillation extraction spice berry essential oil is characterized in that including following steps:
(1) spice berry to be extracted is crushed accordingly, cuts off, grinds according to the characteristic of material or break process after, pack into equably in the material retort, the characteristic that the height of charging and degree of tightness will be considered material itself, steam the dilatable material in back and should adorn the 70-80% that is equivalent to the retort volume, generally should fill in more than 80% of material retort volume to fresh feed, and note evenly compressing, prevent the steam short circuit;
(2) steam coil or the sieve plate by perforate makes water vapour progressively add thermal material layer equably from top to bottom, simultaneously the hot water that also progressively formed by bed of material condensation of saturated vapo(u)r constantly infiltrates material tissue, and material has formed good water and loose and act in the process of the heating of steam, diffusion, condensation; Along with constantly entering of water vapour, the vapor outlet port of profit mixed vapour through the material pot bottom imports in the condenser, and cooling promptly obtains needed essential oil after water-and-oil separator separates, and isolated water is Hua Shui; The water of condensation that contains derived essential oil in the material on a small quantity that is condensed flows in the water of condensation receiving tank through material pot, therefrom take out when waiting to receive certain volume, through water-and-oil separator separation a small amount of essential oil wherein, after handling, decolouring obtains required essential oil, and isolated water is Hua Shui;
(3) in order to reduce the loss of fragrance material, vacuum pump adopts the circulation ability of swimming, recirculated water has dissolved the perfume composition that gets off without the condenser total condensation in a large number in the resulting recirculated water after recycling in 6-8 hour, collect promptly to obtain required colored fishery products after this part recirculated water filters.
9. method according to claim 6, it is characterized in that in the method for described reduced steam distillation extraction spice berry essential oil, import from the saturated steam of steam generator top from retort, contact the water of condensation receptor that a small amount of water of condensation that the back condensation gets off has directly entered into the retort bottom with spice berry, avoided because heat steam enters from the bottom, the water of condensation that contains the volatile component in the material that cools down is earlier heated repeatedly and makes aroma component wherein that bad change take place.
10. method according to claim 6 is characterized in that the method for described reduced steam distillation extraction spice berry essential oil can be widely used in the extraction of the volatile essential oil composition of the various natural phant that comprise lavandula angustifolia, rose, Thymus vulgaris, Herba Dracocephali, tonka bean camphor, hops, Radix Angelicae Sinensis, Xinjiang Jehol Ligusticum Rhizome, saussurea involucrata, Chinese ephedra, A Wei, Herba Sophorae alopecuroidis, sweet basil, peppermint etc.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1376539A (en) * | 2001-03-13 | 2002-10-30 | 科学和工业研究委员会 | Small portable distilling apparatus and preparing essential oil and hydrosol |
| CN101157880A (en) * | 2007-10-11 | 2008-04-09 | 上海交通大学 | Aromatic plant essential oil ecological processing method |
-
2011
- 2011-05-30 CN CN2011101424318A patent/CN102250689A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1376539A (en) * | 2001-03-13 | 2002-10-30 | 科学和工业研究委员会 | Small portable distilling apparatus and preparing essential oil and hydrosol |
| CN101157880A (en) * | 2007-10-11 | 2008-04-09 | 上海交通大学 | Aromatic plant essential oil ecological processing method |
Non-Patent Citations (1)
| Title |
|---|
| 罗金岳: "《植物精油和天然色素加工工艺》", 31 August 2005 * |
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