CN104431358A - System and method for treating liquid phase obtained in process course of extracting camellia oleosa seed oil by adopting aqueous enzymatic method - Google Patents
System and method for treating liquid phase obtained in process course of extracting camellia oleosa seed oil by adopting aqueous enzymatic method Download PDFInfo
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Abstract
The invention discloses a system for treating a liquid phase obtained in a process course of extracting camellia oleosa seed oil by adopting an aqueous enzymatic method. The system comprises a liquid phase pretreatment system used for clarifying the liquid phase, a nanofiltration concentration and separation system used for concentrating the clear liquid phase, and a drying system. The system is simple in structure, a process is safe, equipment is convenient to operate,, the integrated solid recovery and water recycle can be achieved and the sample properties of a final product in the solid recovery is ensured. The invention further discloses a method for treating the liquid phase obtained by the system in the process course of extracting the camellia oleosa seed oil by adopting the aqueous enzymatic method. The method is not only used for avoiding technical problems of needing a large amount of organic solvents and complicated extraction process in a traditional saccharicterpenin extraction technology, but also is used for achieving the water recycle in the oil extraction process by adopting the aqueous enzymatic method and reducing the use amount and drainage of water in the oil extraction technology by adopting the enzymatic method, and the method is suitable for being used in industrialized production.
Description
Technical field
The present invention relates to the technical field that aqueous enzymatic method proposes the liquid phase recycling of oil.More specifically, a kind of system and method processing the liquid phase obtained in the technical process of aqueous enzymatic extraction camellia seed oil is related to.
Background technology
Tea seed is the woody oil sources of the distinctive advantage of China, and 2012 annual productions reach 1,480,000 tons, produces tea-seed oil 38.7 ten thousand tons per year.Oil-containing 40%-50%, albumen about 10%, saponin 8%-10%, carbohydrate about 25% in camellia seed kernel, be not only important woody oil sources, also be important saponin and vegetable protein sources, saponin wherein, polysaccharide and albumen are the very good materials of feed, food and industrial products.
Aqueous enzymatic method is little as a kind of scale of investment, handling safety carry oil tech, its maximum feature be extract grease while, synchronously can obtain the liquid phase being rich in non-oil nutrition composition, the efficient complete utilization of oil resource can be realized by the recovery of solid content in liquid phase.The unsaturated fatty acid content of camellia seed oil is up to more than 90%, the crude oil that application aqueous enzymatic method technology is extracted is not containing organic solvent, lighter color, phosphorus content are low, acid number and peroxide value low, only need can reach vegetable oil edible safety standard through refining treatment such as simple dehydration, natural micronutrient in grease can better be retained and to avoid in grease the adverse consequences such as trans-fatty acid content production.Saponin in oil plant, carbohydrate, protein etc. enter liquid-phase system, do not need to increase again extraction equipment and other materials consumption can directly be recycled from liquid phase, technique is simple, equipment investment is few, once can industrial applications be realized, oil resource full constituent advantage can be given full play to, conscientiously improve the processing benefit of tea seed.
At present, existing multiple employing aqueous enzymatic method technology extracts the publication of tea oil from camellia seed kernel.Aqueous enzymatic method proposes oil tech objective restriction: carry in oily process the water adding raw material more than 4 times, have the soluble solid of added value along with enzymolysis carry oil carrying out, enter in this part water.If the dry means of direct evaporation water reclaim saponin, carbohydrate, protein etc. from aqueous systems, consume energy very huge, drying efficiency is low, production cost is high, and industrial applications feasibility is little.This has become the downstream bottlenecks that restriction aqueous enzymatic method puies forward the overall industrial applications of oil tech.Patent CN101096612A adopts amylase or/and cellulase extracts the key of oil as aqueous enzymatic method from tea seed, have employed the raw material 3-6 water yield doubly, but patent does not relate to aqueous phase recycling.Patent CN103113975A discloses a kind of method that microwave and ultrasound broken wall auxiliary water enzyme process extracts tea oil and saccharicter-penin from tea seed, in technique, water consumption is 5-20 times of raw material, but the recovery of saccharicter-penin adopts vacuum drying, spraying dry or freeze drying.Water consumption and energy consumption huge, technical and economic feasibility is low.Patent CN102391348A disclose aqueous enzymatic method produce tea oil after waste liquid in extract the method for Tea Saponin, the method of flocculation sediment is adopted repeatedly to extract Tea Saponin from the aqueous phase that aqueous enzymatic method produces, not only the water in aqueous enzymatic method effectively can not be utilized, also produce more substantial waste water, and protein wherein, carbohydrate are removed by as impurity, environmental pressure is large.
The mixture that saccharicter-penin is made up of carbohydrate (>=30%), triterpenoid saponin (>=30%) and organic acid, can substitute antibiotics medicine completely, is green feed additive.Its mechanism of action is overall immune performance by improving animal and internal system function, improves animal health level, and then improves the production performance of animal.Natural biological feed addictive that is efficient as a new generation, noresidue carrys out alternatives to medication feed addictive, has good market prospects.Saccharicter-penin tradition extracting mode with camellia seed oil grouts for raw material.In CN1082337C (fodder compound containing triterpenes saponin extract and nutrition and health care agent) with the ethanol of 60%-90% for Extraction solvent, process pulverize after tea seed grouts, organic extract filters, concentrated, drying obtains feed addictive triterpenes saponin.Chen Xinxin (Wuhan University of Technology's journal, 32 volumes in 2013) reports with water and methyl alcohol for solvent, and n-butanol is extractant, and from camellia seed meal, extract the method for saccharicter-penin, complex process, yield is only 28.9%.Though CN101756023A is also direct is that raw material extracts saccharicter-penin from Theaceae seed, need in technique to use a large amount of organic solvent such as ethanol, benzinum, acetone and n-butanol, process costs is high, extraction efficiency is low.
At present, domestic also do not have the liquid phase systems how high efficiente callback soluble solid wherein realize the research report of water circulation use carrying oil to aqueous enzymatic method.
Therefore, need to provide a kind of system and method processing the liquid phase obtained in the technical process of aqueous enzymatic extraction camellia seed oil.
Summary of the invention
One object of the present invention is to provide a kind of system processing the liquid phase obtained in the technical process of aqueous enzymatic extraction camellia seed oil, this system composition is simple, process safety, equipment operating are convenient, the integration of solid content recovery and water circulation use can be realized, and in solid content reclaims, ensure that the sample characteristics of for example of final products.
Another object of the present invention is to provide a kind of method processing the liquid phase obtained in the technical process of aqueous enzymatic extraction camellia seed oil, the method not only avoid tradition and extracts saccharicter-penin technique and need to consume the technical problems such as a large amount of organic solvent, extraction process are loaded down with trivial details, and achieve water circulation use in aqueous enzymatic extraction, decrease water consumption and discharge in Oil Extraction by Enzymatic Processing, breach the liquid phase existed in current oil tea-seed oil aqueous enzymatic method comprehensive processing technology chain completely and utilize some row bottlenecks such as difficult, utilization benefit is low, be suitable for suitability for industrialized production.
Liquid phase of the present invention refers to and adopts aqueous enzymatic method from tea seed, extract the liquid product produced in the process of oil, also can be referred to as aqueous phase.
For achieving the above object, the present invention adopts following technical proposals:
Processing a system for the liquid phase obtained in the technical process of aqueous enzymatic extraction camellia seed oil, comprising the liquid phase pretreatment system for liquid phase being clarified, be used for nanofiltration concentrated separation system and the drying system of the liquid phase of concentrating clarifying.
Preferably, described liquid phase pretreatment system comprises filter plant;
Described nanofiltration concentrated separation system comprises head tank and nanofiltration equipment;
Described nanofiltration equipment is provided with concentrate discharging opening and permeate discharging opening;
Described head tank is provided with the charging aperture of clarified solution and the charging aperture of concentrate; Described clarified solution flows out from filter plant; Described concentrate flows out from the concentrate discharging opening of nanofiltration equipment;
Described head tank is provided with two discharging openings, and the first discharging opening of head tank connects drying system, and the second discharging opening of head tank connects the charging aperture of nanofiltration equipment;
Permeate (also the can be described as water) discharging opening of described nanofiltration equipment connects the equipment of aqueous enzymatic extraction camellia seed oil, and the raw water as aqueous enzymatic extraction camellia seed oil recycles.
Preferably, described liquid phase pretreatment system also comprises storage tank; Reciprocating pump is provided with between described storage tank and filter plant;
Valve is provided with between the charging aperture of the clarified solution discharging opening of described filter plant and the clarified solution of head tank;
Reciprocating pump is provided with between described nanofiltration equipment and the equipment of aqueous enzymatic extraction camellia seed oil;
The external cooling recirculation system for control temperature of described head tank.
Preferably, described drying system comprises centrifugal pump, spinner flowmeter and drying equipment;
First discharging opening of described head tank is connected drying equipment by after centrifugal pump and spinner flowmeter.
Preferably, described filter plant is selected from plate and frame filter press or malleation Microfilter; Described drying equipment is selected from spray drying tower.
Preferably, plate and frame filter press equipment operating pressure is 0.3 ~ 1.2Mpa, filter cloth material be food service industry can the material such as non-woven fabrics or terylene.The micropore size of malleation Microfilter microscreen is between 50-300 micron.
Utilize said system to prepare a method for saccharicter-penin, comprise following preparation process:
(1) liquid phase pre-flock: the liquid phase that the equipment of aqueous enzymatic extraction camellia seed oil obtains is added liquid phase pretreatment system and clarifies, obtain clarified solution;
(2) nanofiltration concentrates: start nanofiltration equipment after clarified solution being added head tank and carry out nanofiltration and concentrate, and the concentrated permeate (also can be described as water) of nanofiltration reclaims, and the raw water as aqueous enzymatic extraction camellia seed oil recycles;
Using abbe's refractometer as the fast monitored instrument of solid content in concentrate in concentration process, in order to measure the soluble solid content in liquid;
(3) dry: when the concentrate of head tank solid content lower than 15% time, the concentrate of nanofiltration equipment returns head tank; When the concentrate of head tank solid content higher than 15% time, stop nanofiltration equipment, concentrate inputted drying equipment and carry out drying, obtain saccharicter-penin.
The liquid phase that oil obtains is put forward through the tea seed aqueous enzymatic method of emchanically centrifugal separation, wherein there is a material that suspends, before feed liquid enters nano-filtration membrane equipment, need first filter, to avoid suspended particulate to cause irreversible membrane fouling to NF membrane, flux depression and film is caused to reduce service life.
Filter component and the difference such as content, molecular weight distribution thereof in the clarification material after clarification, the present invention adopts the NF membrane of certain molecular cut off, condensing mode is adopted to carry out concentration operation, after the concentrated trapped fluid vacuum distillation drying of NF membrane, spraying dry or Direct spraying drying obtain saccharicter-penin, through the permeate (water) of film as the raw water in new round aqueous enzymatic extraction, realization recycles, and decreases water consumption and discharge in Oil Extraction by Enzymatic Processing.
Preferably, in step (2) described head tank, temperature is 20-40 DEG C.
Preferably, step (2) described nanofiltration concentrates condition and is: the NF membrane molecular cut off of nanofiltration equipment is below 1000Da, and nanofiltration pressure is 10-30bar; More preferably, described NF membrane molecular cut off is below 500Da.
Preferably, the membrane structure material of described NF membrane is rolled film.
The core of nano filter membrance device is membrane module, and mass transfer effect and the membrane module structure on film surface have close relationship, and conventional NF membrane element has 4 kinds of package assemblies: tubular type, plate and frame, rolling, hollow fiber form.Doughnut and wound module film packed density high; cost is low; assembly inner fluid mechanical property is good; may be used for large-scale production, be NF membrane primary structure form, wherein rolling NF membrane element antifouling property is better; membrane area and volume ratio higher; floor space and spatial volume little, easily on-the-spot displacement, is the preferred object that solution system carries out nanofiltration separation.
Film used in the present invention is organic film; Molecular cut off is 300-500D film, to the rejection effects such as the saponin in concentrate and best through effect to water, use the cleaning of caudacoria also more convenient, clean with the dilute alkaline soln contrary with the pH being concentrated liquid or citric acid solution, flux recovery rate more than 97%, the effect before film substantially can be made to return to use.
Nanofiltration pressure is that when in 10-30bar and head tank, temperature is 20-40 DEG C, contracting flow velocity increases obvious, and membrane flux can not decline too fast, is conducive to film and uses for a long time, increases device processes amount.
Preferably, the intake air temperature of step (3) described drying equipment is 175-185 DEG C, and air outlet temperature is 80-90 DEG C.
Beneficial effect of the present invention is as follows:
Present invention achieves the maximization that in aqueous enzymatic method technique, in liquid phase, all components reclaims, utilizes, breach single utilization saponin in report in the past and the three waste discharge increase that adopts the various ways such as flocculation, precipitation, absorption to remove the materials such as wherein protide, polysaccharide, pigment to bring, the such as drawback that organic solvent consumption is large.For suitability for industrialized production saccharicter-penin provides not only an economy but also green route.
The present invention adopts NF membrane as the concentrated means of liquid phase in camellia seed kernel aqueous enzymatic extraction first, by selecting molecular cut off NF membrane within the specific limits, the fixture content of permeate is below 0.1%, product loss of effective components rate is little, and permeate completely can as using water in new round aqueous enzymatic extraction.
In the present invention before liquid phase enters nanofiltration equipment, filter with sheet frame and Microfilter, these device structures are simple, convenient operation, maintenance and cleaning, the service life of critical component film in nanofiltration equipment can be improved, namely can reduce investment outlay, can operating cost be reduced again.
NF membrane is concentrated replaces multiple-effect evaporation, and pressure differential is concentrated power, the both energy-conservation concentrated difficulty that turn avoid saponin and very easily bubble in multiple-effect evaporation, and is conducive to the acceptability improving saccharicter-penin finished product color and luster.
Equipment investment is few, safety simple to operate, and production cost is low, less energy consumption, and craft science is reasonable, is applicable to industrial applications.
The saccharicter-penin product quality of producing is high, and total saponin content is more than 44%, and total reducing sugar is more than 32%, and crude protein is more than 10%, and indices is all better than the Limited Doses of national Specification.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 illustrates the schematic diagram being prepared saccharicter-penin by the liquid phase of aqueous enzymatic extraction camellia seed oil of the embodiment of the present invention 1.Wherein, 1 liquid phase pretreatment system, the nanofiltration concentrated separation system of 2 liquid phases, 3 drying systems;
10 storage tanks, 11 filter plants, 13 reciprocating pumps;
20 head tanks, 21 nanofiltration equipment, 23 reciprocating pumps, 25 valves;
30 drying equipments, 32 centrifugal pumps, 31 spinner flowmeters;
The equipment of 40 aqueous enzymatic extraction camellia seed oils.
Detailed description of the invention
In order to be illustrated more clearly in the present invention, below in conjunction with preferred embodiments and drawings, the present invention is described further.Parts similar in accompanying drawing represent with identical Reference numeral.It will be appreciated by those skilled in the art that specifically described content is illustrative and nonrestrictive, should not limit the scope of the invention with this below.
Embodiment 1
Be the liquid phase systems and method obtained in the technical process of process aqueous enzymatic extraction camellia seed oil see accompanying drawing 1 the present embodiment, described system comprises storage tank 10, reciprocating pump 13, filter plant 11, valve 25, head tank 20, centrifugal pump 32, spinner flowmeter 31, drying equipment 30, nanofiltration equipment 21, reciprocating pump 23, the equipment of aqueous enzymatic extraction camellia seed oil, storage tank 10 is connected with reciprocating pump 13 and is connected with filter plant 11, or the liquid phase discharging opening of the equipment 40 of aqueous enzymatic extraction camellia seed oil is directly connected with filter plant 11 charging aperture, filter plant 11 discharging opening is connected with head tank 20 import, centre adds valve 25, bottom head tank 20, an outlet is connected with nanofiltration equipment 21, the concentrated solution outlet of nanofiltration equipment 21 is connected with head tank 20 import, reciprocating pump 23 in the middle of the permeate outlet connection of nanofiltration equipment 21 connects the equipment 40 upper end import of aqueous enzymatic extraction camellia seed oil again, bottom head tank 20, another outlet is through centrifugal pump 32, the pipeline of spinner flowmeter 31 enters drying equipment 30.
Wherein head tank 20 is with chuck, external circulating cooling system, and for controlling temperature of charge, cooling material therefor is cooling water.
Liquid phase that tea seed aqueous enzymatic method carries oil is efficiently rised in value utilization to adopt said system to realize, concrete steps:
(1) camellia seed kernel oil extraction by enzymatic processing goes out the slurry enzymatic hydrolysis system after enzyme, obtains liquid phase by centrifuge;
By multilayer sheet frame Filter Press liquid phase, the suspended particulate substance in filtering liquid phase.The operating pressure of plate and frame filter press is 0.6Mpa, and on flame filter press, filter cloth type is non-woven fabrics filter cloth, and before and after filtering, the solid content of liquid is respectively 10.5% and 7.0%, requires to reach without the tiny insoluble granule that suspends in the filtrate after press filtration.
(2) head tank 20 is entered from plate and frame filter press filtrate out through the pipeline with valve 25, when in head tank 20, clarified solution reaches a certain amount of, valve-off 25, unlatching nanofiltration equipment 21 carries out film and concentrates, and wherein NF membrane molecular cut off is 500Da.Feed temperature in external cooling water control head tank 20, makes the operating temperature of nanofiltration system between 30 DEG C-35 DEG C, pressure 10bar.In nanofiltration concentration process, the flux caused for reducing concentration polarization declines, and progressively can increase pressure to 18bar to improve thickening efficiency.Directly return head tank 20 from nanofiltration equipment 21 concentrate out, permeate directly enters the equipment 40 of aqueous enzymatic extraction camellia seed oil.When the solid content of concentrate is 20% in head tank 20, close nanofiltration equipment 21, now, in concentrate, saponin content brings up to 81mg/ml by the 20mg/ml before concentrating.
(3) concentrate centrifugal pump 32 inputs drying system 3, controls charging flow velocity by spinner flowmeter 31.When spraying dry carries out drying, intake air temperature 180-185 DEG C, air outlet temperature 90-95 DEG C, obtain saccharicter-penin product, wherein containing total saposins 44.97%, and total reducing sugar 37.57%, crude protein 16.27%, product drying weightlessness 3.08%, ash content 4.16%.
In whole process, calculate with saponin, product yield is 73.6%.
Embodiment 2
Liquid phase in the equipment 40 of aqueous enzymatic extraction camellia seed oil, enters storage tank 10 after centrifuge, input filter plant 11 (malleation Microfilter) by reciprocating pump 13.
The malleation Microfilter of filter plant 11 is the non-woven fabrics filter screen of 50 microns with three metafiltration holes, operating pressure 0.15Mpa, and before and after filtering, the solid content of liquid is respectively 9.5% and 8.0%.
Filter plant 11 clarified solution out, enter head tank 20 through the pipeline with valve 25, when in head tank 20, clarified solution reaches a certain amount of, unlatching nanofiltration equipment 21 carries out film and concentrates, and keep valve 25 to open, make in head tank 20, to continue have unconcentrated clarified solution to enter.In nanofiltration equipment 21, membrane retention molecular weight is 160Da; The cooling water of uninterrupted unlatching head tank 20, in order to control nanofiltration equipment 21 operating temperature, makes it lower than 40 DEG C; Constant pressure is at 10-12bar.When the permeate (solid content is 0.1%) of nanofiltration equipment 21 equipment 40 entering aqueous enzymatic extraction camellia seed oil out reach a certain amount of after, valve-off 25, no longer input new clarified solution, continue to concentrate the material in head tank 20, until concentrate solid content, to more than 25%, closes nanofiltration equipment 21 in head tank 20.
In head tank 20 solid content be 25.2% concentrate enter centrifugal pump 32 and spinner flowmeter 30 by outlet, input spray drying device 30, the intake air temperature 180-185 DEG C of spray drying device 30, air outlet temperature 90-95 DEG C, obtains saccharicter-penin powder-product, wherein containing total saposins 46.86%, total reducing sugar 33.15%, crude protein 12.1%, product drying weightlessness 1.95%, ash content 5.37%.
In whole process, calculate with saponin, product yield is 68%.
Embodiment 3
Process a system for the liquid phase obtained in the technical process of aqueous enzymatic extraction camellia seed oil, described system comprises the liquid phase pretreatment system 1 for liquid phase being clarified, the nanofiltration concentrated separation system 2 being used for the liquid phase of concentrating clarifying and drying system 3.
Described liquid phase pretreatment system 1 comprises filter plant 11;
Described nanofiltration concentrated separation system 2 comprises head tank 20 and nanofiltration equipment 21;
Described nanofiltration equipment 21 is provided with concentrate discharging opening and permeate discharging opening;
Described head tank 20 is provided with the charging aperture of clarified solution and the charging aperture of concentrate; Described clarified solution flows out from filter plant 11; Described concentrate flows out from the concentrate discharging opening of nanofiltration equipment 21;
Described head tank 20 is provided with two discharging openings, and the first discharging opening of head tank 20 connects drying system 3, and the second discharging opening of head tank 20 connects the charging aperture of nanofiltration equipment 21;
The permeate discharging opening of described nanofiltration equipment 21 connects the equipment 40 of aqueous enzymatic extraction camellia seed oil;
The liquid phase that the equipment 40 of described aqueous enzymatic extraction camellia seed oil obtains enters liquid phase storage tank 10.
Described liquid phase pretreatment system also comprises storage tank;
Reciprocating pump 13 is provided with between described storage tank 10 and filter plant 11;
Valve 25 is provided with between the charging aperture of the clarified solution discharging opening of described filter plant 11 and the clarified solution of head tank 20;
Reciprocating pump 23 is provided with between described nanofiltration equipment 21 and the equipment 40 of aqueous enzymatic extraction camellia seed oil;
The external cooling recirculation system for control temperature of described head tank 20.
Described drying system 3 comprises centrifugal pump 32, spinner flowmeter 31 and drying equipment 30;
First discharging opening of described head tank 20 is connected drying equipment 30 by centrifugal pump 32 with after spinner flowmeter 31.
Described filter plant 11 is malleation Microfilter; Described drying equipment 30 is spray drying tower.
Adopt said system to prepare the method for saccharicter-penin, comprise the following steps:
(1) liquid phase that the equipment 40 of aqueous enzymatic extraction camellia seed oil obtains is clarified, obtain clarified solution; The rotating speed of described centrifuge is 4500rpm; Described centrifuging temperature is 50 DEG C.
(2) controlling temperature in head tank 20 is 20 DEG C, and start nanofiltration equipment 21 after clarified solution being added head tank 20 and carry out nanofiltration and concentrate, when the solid content of the concentrate of head tank 20 is lower than 15%, the concentrate of nanofiltration equipment 21 directly returns head tank 20; The permeate of nanofiltration equipment 21 enters the equipment 40 of aqueous enzymatic extraction camellia seed oil; The NF membrane molecular cut off of described nanofiltration equipment 21 is less than 1000, and nanofiltration pressure is 10bar.
(3) when the concentrate of head tank 20 solid content higher than 15% time, stop nanofiltration equipment 21, concentrate inputted drying equipment and carry out drying, can saccharicter-penin be obtained.The intake air temperature of described drying equipment is 175-185 DEG C, and air outlet temperature is 80-90 DEG C.
Embodiment 4
Process a system for the liquid phase obtained in the technical process of aqueous enzymatic extraction camellia seed oil, described system comprises the liquid phase pretreatment system 1 for liquid phase being clarified, the nanofiltration concentrated separation system 2 being used for the liquid phase of concentrating clarifying and drying system 3.
Described liquid phase pretreatment system 1 comprises filter plant 11;
Described nanofiltration concentrated separation system 2 comprises head tank 20 and nanofiltration equipment 21;
Described nanofiltration equipment 21 is provided with concentrate discharging opening and permeate discharging opening;
Described head tank 20 is provided with the charging aperture of clarified solution and the charging aperture of concentrate; Described clarified solution flows out from filter plant 11; Described concentrate flows out from the concentrate discharging opening of nanofiltration equipment 21;
Described head tank 20 is provided with two discharging openings, and the first discharging opening of head tank 20 connects drying system 3, and the second discharging opening of head tank 20 connects the charging aperture of nanofiltration equipment 21;
The permeate discharging opening of described nanofiltration equipment 21 connects the equipment 40 of aqueous enzymatic extraction camellia seed oil;
The liquid phase that the equipment 40 of described aqueous enzymatic extraction camellia seed oil obtains directly enters filter plant 11.
Valve 25 is provided with between the charging aperture of the clarified solution discharging opening of described filter plant 11 and the clarified solution of head tank 20;
Reciprocating pump 13 is provided with between described storage tank 10 and filter plant 11;
Reciprocating pump 23 is provided with between described nanofiltration equipment 21 and the equipment 40 of aqueous enzymatic extraction camellia seed oil;
The external cooling recirculation system for control temperature of described head tank 20.
Described drying system 3 comprises centrifugal pump 32, spinner flowmeter 31 and drying equipment 30;
First discharging opening of described head tank 20 is connected drying equipment 30 by centrifugal pump 32 with after spinner flowmeter 31.
Described filter plant 11 is malleation Microfilter; Described drying equipment 30 is spray drying tower.
Adopt said system to prepare the method for saccharicter-penin, comprise the following steps:
(1) equipment 40 of aqueous enzymatic extraction camellia seed oil is obtained liquid phase, add liquid filtration equipment 11 and clarify, obtain clarified solution; The rotating speed of described centrifuge is 6000rpm; Described centrifuging temperature is 50 DEG C.
(2) controlling temperature in head tank 20 is 40 DEG C, starts nanofiltration equipment 21 and carry out nanofiltration and concentrate after clarified solution being added head tank 20, the solid content of the concentrate of head tank 20 lower than 15% time, the concentrate of nanofiltration equipment 21 directly returns head tank 20; The permeate of nanofiltration equipment 21 reclaims, and as the water source of aqueous enzymatic extraction camellia seed oil, enters the equipment 40 of aqueous enzymatic extraction camellia seed oil; The NF membrane molecular cut off of described nanofiltration equipment 21 is less than 1000, and the membrane structure of described NF membrane is rolled film, and nanofiltration pressure is 30bar.
(3) when the concentrate of head tank 20 solid content higher than 15% time, stop nanofiltration equipment 21, concentrate inputted drying equipment and carry out drying, can saccharicter-penin be obtained.The intake air temperature of described drying equipment is 185 DEG C, and air outlet temperature is 90 DEG C.
Obviously; the above embodiment of the present invention is only for example of the present invention is clearly described; and be not the restriction to embodiments of the present invention; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot give exhaustive to all embodiments, every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (10)
1. process a system for the liquid phase obtained in the technical process of aqueous enzymatic extraction camellia seed oil, it is characterized in that: described system comprises liquid phase pretreatment system (1) for liquid phase being clarified, for the nanofiltration concentrated separation system (2) of the liquid phase of concentrating clarifying and drying system (3).
2. the system of the liquid phase obtained in the technical process of process aqueous enzymatic extraction camellia seed oil according to claim 1, is characterized in that: described liquid phase pretreatment system (1) comprises filter plant (11);
Described nanofiltration concentrated separation system (2) comprises head tank (20) and nanofiltration equipment (21);
Described nanofiltration equipment (21) is provided with concentrate discharging opening and permeate discharging opening;
Described head tank (20) is provided with the charging aperture of clarified solution and the charging aperture of concentrate; Described clarified solution flows out from filter plant (11); Described concentrate flows out from the concentrate discharging opening of nanofiltration equipment (21);
Described head tank (20) is provided with two discharging openings, first discharging opening of head tank (20) connects drying system (3), and the second discharging opening of head tank (20) connects the charging aperture of nanofiltration equipment (21);
The permeate discharging opening of described nanofiltration equipment (21) connects the equipment (40) of aqueous enzymatic extraction camellia seed oil.
3. the system of the liquid phase obtained in the technical process of process aqueous enzymatic extraction camellia seed oil according to claim 2, is characterized in that: described liquid phase pretreatment system (1) also comprises storage tank (10);
Reciprocal transportation pump (13) is provided with between described storage tank (10) and filter plant (11);
Valve (25) is provided with between the charging aperture of the clarified solution discharging opening of described filter plant (11) and the clarified solution of head tank (20);
Reciprocating pump (23) is provided with between described nanofiltration equipment (21) and the equipment (40) of aqueous enzymatic extraction camellia seed oil;
The external cooling recirculation system for control temperature of described head tank (20).
4. the system of the liquid phase obtained in the technical process of process aqueous enzymatic extraction camellia seed oil according to claim 2, is characterized in that: described drying system (3) comprises centrifugal pump (32), spinner flowmeter (31) and drying equipment (30);
First discharging opening of described head tank (20) is connected drying equipment (30) by centrifugal pump (32) afterwards with spinner flowmeter (31).
5. the system of the liquid phase obtained in the technical process of process aqueous enzymatic extraction camellia seed oil according to claim 2, it is characterized in that: preferably, described filter plant (11) is selected from plate and frame filter press or malleation Microfilter; Described drying equipment (30) is selected from spray drying tower.
6. adopt the method for the liquid phase obtained in the technical process of the system process aqueous enzymatic extraction camellia seed oil described in any one of claim 2-5, it is characterized in that, comprise following preparation process:
(1) liquid phase pre-flock: the liquid phase that the equipment (40) of aqueous enzymatic extraction camellia seed oil obtains is added liquid phase pretreatment system (1) and clarifies, obtain clarified solution;
(2) nanofiltration concentrates: clarified solution is added head tank (20) and starts nanofiltration equipment (21) afterwards and carry out nanofiltration and concentrate, by permeate recovery concentrated for nanofiltration, as the water source of aqueous enzymatic extraction camellia seed oil;
(3) dry: when head tank (20) solid content lower than 15% time, the concentrate of nanofiltration equipment (21) returns head tank (20); When the concentrate of head tank (20) solid content higher than 15% time, stop nanofiltration equipment (21), by the concentrate of head tank (20) input drying system (3) carry out drying, can saccharicter-penin be obtained.
7. the method for the liquid phase obtained in the technical process of process aqueous enzymatic extraction camellia seed oil according to claim 6, is characterized in that: step (2) described head tank (20) interior temperature is 20-40 DEG C.
8. the method for the liquid phase obtained in the technical process of process aqueous enzymatic extraction camellia seed oil according to claim 6, it is characterized in that, the condition that step (2) described nanofiltration concentrates is: the NF membrane molecular cut off of nanofiltration equipment (21) is below 1000Da, and nanofiltration pressure is 10-30bar; Preferably, described NF membrane molecular cut off is below 500Da.
9. the method for the liquid phase obtained in the technical process of process aqueous enzymatic extraction camellia seed oil according to claim 6, it is characterized in that: the intake air temperature of step (3) described drying system (3) is 175-185 DEG C, and air outlet temperature is 80-90 DEG C.
10. the method for the liquid phase obtained in the technical process of process aqueous enzymatic extraction camellia seed oil according to claim 8, is characterized in that: the membrane structure of described NF membrane is rolled film.
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