CN105566048A - Method for extracting tomato skin residues by adopting subcritical fluid - Google Patents
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Abstract
The invention provides a method for extracting tomato skin residues by adopting subcritical fluid. The method comprises the following steps: (1) extracting the ground tomato skin residues at the temperature of 15-60 DEG C and under the pressure of 0.4-4 MPa for 0.5-6 hours by adopting subcritical fluid, thereby obtaining a tomato skin residue extraction mixture; (2) maintaining the tomato skin residue extraction mixture obtained in the step (1) at the temperature of 40-60 DEG C and under the pressure of 0.2-2 MPa so as to gasify the subcritical fluid, thereby obtaining the tomato skin residue extract. According to the method disclosed by the invention, the requirement of the moisture of the tomato skin residues is not strict, and tomato skin residues with high moisture content can be extracted. Moreover, damage to bioactive substances and protein structures contained in the tomato skin residues can be reduced, and the equipment cost is low. The extracted tomato skin residue extract is low in moisture content, has good reutilization value and can be widely applied to the preparation field of tomato proteins and fibers.
Description
Technical field
The present invention relates to a kind of new technique carrying out extracting exploitation for the active substance in the by product tomato peel of tomato industry.Specifically, the present invention relates to a kind of method adopting physical method to extract tomato peel, especially subcritical fluids is adopted to carry out high efficiency separation extraction in temperature lower than carrying out active substance, particularly Lyeopene to tomato peel when 60 DEG C, obtain the method for high yield Lyeopene, and, described method requires loose for the moisture content in tomato peel, even for the tomato peel of high moisture content, also can effectively extract.
Background technology
Tomato is the main vegetable variety of China, is also one of important crops of Xinjiang, main producing region and Inner Mongol.But, in recent years, for based on the Tomato in China business of large preliminary working tomato-sauce outlet, owing to being subject to the impact of the factors such as cost of material rising, appreciation of the RMB, labor cost rising and productive rate are low, causing current production cost sharply to rise violently, plant also the underproduction thereupon.2012, Tomato in China production declining was up to 60%; 2013, the cost level that the tomato-sauce of Chinese 36%-38% and other main product state tomato-sauce are transported to Ou Jigang was suitable, and in world market, price advantage in the past will not exist.For this reason, extend tomato product processing line, utilize resource, the deep processing of expansion tomato, the added value of lifting tomato products to become the striving direction of extricating oneself from a predicament at present rationally and effectively.
Tomato peel is the waste material that tomato-sauce factory is produced by tomato skin and Tomato Seed in the course of processing, accounts for the 3wt% of tomato total amount.2012, Tomato in China output was about 3,230,000 tons, produced the tomato peel waste material of about 90,000 tons thus.At present, these waste materials can only, with very cheap sell at competitive, also have the tomato peel of quite a few to be wasted.
The Lyeopene (up to about 30mg/100g) of known tomato peel not only containing high level, be attached in the water soluble component of tomato skin and Tomato Seed also containing a large amount of bioactive ingredients, according to patent WO99/55350, these compositions mainly comprise the multiple bioactive compoundss such as flavonoid glucosides, flavonoid ester derivative, flavonoid, phenolic acid, phenol ester derivative, phenolic acid glucosides, nucleosides, Nucleotide.Clinical trial shows, these water miscible bioactive ingredients have obvious antiplatelet and to condense effect, thus can effectively prevent venothrombotic formation, safeguards that the cardiovascular and cerebrovascular of human body is healthy.
In addition, according to achievement in research (Liu Dayu, Zhong Shirong of the people such as Liu Dayu, tomato peel composition and utility value research, Sichuan Light Chemical Engineering College's journal, 2000 (1): 28-30), the amino acid classes of tomato seed protein is comparatively complete, and be especially rich in L-glutamic acid, aspartic acid, arginine, Methionin etc., the content of leucine, Serine, proline(Pro) is also higher.Particularly, as the Methionin of essential amino acid, its content in tomato seed protein is obviously high than the content in cereal.Therefore, tomato seed protein can be considered as the protein source of the first limiting amino acids (Methionin) in intensified cereal food, has high-lysine and the dual strengthening effect of high calcium.In addition, tomato skin is also the potential raw material of exploitation high-calcium type food fibre.Utilize the tomato peel of enormous amount, the tomato combination extract of production high added value, effectively utilizes the effective constituents such as Tomato Seed vegetable-protein and fiber, had both avoided the wasting of resources and environmental pollution, the economic benefit of tomato industry can be increased again, alleviate the production cost pressure of large tomato-sauce.
Known at present, there is the report about the method extracting Lyeopene from tomato peel in prior art.After proposing to adopt colloidal mill tomato skin to be pulverized in Chinese patent application publication number CN101449801A (denomination of invention: the method extracting Lyeopene from tomato peel), use dewatering of ethanol pre-treatment, filter residue carries out organic solvent extraction after will carrying out dehydrating and removing impurities process several times again, the method needs to remove organic solvent after extraction, adopt vacuum concentration precipitation, solvent treatment amount is large, pre-treatment and extraction procedure long, energy consumption is high.
Propose in Chinese patent application publication number CN101810225A to adopt the hydrofluorocarbons containing 1-3 carbon atom as main subcritical abstraction solvent, interpolation normal hexane, acetone and other organic solvent extract tomato peel as auxiliary cosolvent.The method also needs to carry out dehydration pre-treatment to material.
As can be seen here, the extracting method of prior art requires relatively harsh to the water content in tomato peel, just can extract, add technology difficulty and loss after needing to carry out predrainage process to the tomato peel waste material of the high-moisture produced in industrial production.
In addition, according to people's (beam wisdom such as beam wisdom, the extraction of Lyeopene and the research of stability thereof in tomato peel, Shihezi Univ, Master's thesis) research, tomato peel is placed on lucifuge place, the Lyeopene in six days in tomato peel can have initial 29.8mg/100g to drop to 11.9mg/100g, loss nearly 60%.
As can be seen here, the content of Lyeopene in tomato peel is high in loss in the process of drying of dewatering, and causes the productive rate of Lyeopene on the low side.Further, organic solvent too increases the dissolvent residual chance of extraction product as auxiliary cosolvent extraction, needs additionally to remove.
Subcritical fluids refers to and is above the boiling point, lower than critical temperature and emergent pressure, with the material of fluid form existence.The diffusion of subcritical fluids molecule strengthens, and mass transfer velocity is accelerated, and significantly improves the perviousness of low-pole in natural product and apolar substance and dissolving power.Subcritical fluid extraction technology is for solvent with the mixing solutions of the fluid of subcritical state or subcritical fluids, in system to solute in succession through lixiviate, process such as evaporation precipitation, compression, condensation recovery etc., be a kind of new technology extracting target components from natural product.Compared to traditional extracting process, the structure deteriorate of subcritical fluid extraction technology to heat-sensitive ingredients is little, target components is intact, the property the changed technology be regarded as environmental protection, having a extensive future, is used widely in the extraction of food, medicine, special oil, natural pigment and essence etc.
Summary of the invention
Main purpose of the present invention is to overcome in existing extracting method and requires harsh deficiency for tomato peel water content, provides a kind of water content for tomato peel to require loose extracting method.Even if the water content of described tomato peel is up to 90wt%, also high efficiency extraction can be carried out.Described method utilizes subcritical fluid extraction technology to extract the active substance in tomato peel, especially Lyeopene.Method of the present invention, owing to requiring loose to the water content of tomato peel, thus without the need to predrainage process, it also avoid the loss of Lyeopene in preprocessing process.Subcritical fluid extraction technology had both possessed the few advantage of supercritical extraction dissolvent residual, had again the advantage that Conventional solvents extraction process is simple, equipment cost is low.In addition; subcritical fluid extraction technique is carried out under the condition of sealing, anaerobic, low pressure; little to the structure deteriorate of extracted active substance; and extraction after the energy consumption needed for subsequent treatment process low; dissolvent residual in products obtained therefrom lower than the dissolvent residual of Conventional solvents extraction process, will have the potentiality of large-scale production.
Method of the present invention adopts tomato peel as raw material, obtains tomato peel extraction mixture and tomato peel extract remainder through extraction.The tomato peel extract containing described subcritical fluids and be dissolved in described subcritical fluids in described tomato peel extraction mixture, after subcritical fluids gasification wherein, obtains the tomato peel extract as the finished product.
Specifically, the present invention adopts subcritical fluids to comprise the following steps the method that tomato peel extracts:
1) by the tomato peel pulverized temperature 15-60 DEG C, under pressure 0.4-4MPa, adopt subcritical fluid extraction 0.5-6h, obtain tomato peel extraction mixture;
2) by step 1) the described tomato peel extraction mixture that obtains remains on temperature 40-60 DEG C, under pressure 0.2-2MPa, and make described subcritical fluids gasification wherein, obtain tomato peel extract.
Technical scheme of the present invention has the following advantages compared to existing technology:
(1) in conventional at present solvent extraction process, the boiling range of solvent is generally 60-90 DEG C, and the solvent extracted in material slag for removing tomato peel need make temperature rise to more than 100 DEG C, thus causes the serious degenerative that tomato peel extracts albumen in material slag.Different with it, the method that subcritical fluids of the present invention extracts tomato peel, temperature and pressure lower (temperature is no more than 60 DEG C, pressure is no more than 4MPa) in extraction and desolvation process, ensure that the biologically active substances such as the crude protein in leaching process in tomato peel can not because of high-temperature denatured and destroyed, while realizing good extraction active substance, remain the nutritive ingredient of tomato peel preferably, be convenient to follow-up recycling, improve the added value of tomato peel.
(2) subcritical fluids just can be volatilized at normal temperatures completely, and in product, solvent residual amount is low; Extraction, pressure needed for sepn process are all lower, solvent for use can be recycled, equipment and production cost lower.
(3) in the past subcritical fluid extraction time, the moisture content for tomato peel requires harsh, too high moisture content can interferon activity composition in the solvability of weak polar solvent, cause extraction efficiency to reduce; On the contrary, technical scheme of the present invention can relax the requirement of subcritical fluids for tomato peel moisture content, even if when the moisture content of tomato peel is up to 90wt%, still can obtain good extraction efficiency.
Accompanying drawing explanation
Fig. 1 is the preferred technical process illustrated example that subcritical fluids prepares tomato peel extract.
Reference numeral
1. extraction kettle; 2. separating still; 3. collect still; 4. surge tank; 5. gas-holder; 6. gas cylinder; 7. heat exchanger; 8. vacuum pump; 9. compressor
Embodiment
As preferred embodiment, the present invention adopts subcritical fluids to comprise the following steps the method that tomato peel extracts:
(1) tomato peel is placed in extraction kettle 1, opens described extraction kettle 1, separating still 2 and vacuum pump 8, system is vacuumized with the air in discharge system; Afterwards, close the valve between extraction kettle 1 and separating still 2, connect gas cylinder 6, pass into subcritical fluids, make tomato peel to be extracted be soaked in described subcritical fluids, keeps temperature 15-60 DEG C, under pressure 0.4-4MPa, extract 0.5-6h;
(2) by the pressure difference between described extraction kettle 1 and described separating still 2, in described separating still 2, obtain tomato peel extraction mixture, in described extraction kettle 1, retain tomato peel extract remainder and part subcritical fluids;
(3) valve between described extraction kettle 1 and described separating still 2 is regulated, the temperature controlling described separating still 2 is 30-60 DEG C, pressure is 0.2-2MPa, gasify after making the described tomato peel subcritical fluids extracted in mixture enter separating still, in separating still 2, precipitate enrichment obtain described tomato peel extract.
Preferably, before described tomato peel is extracted, pulverization process is carried out to described tomato peel, make the size-grade distribution of tomato peel be 40-100 order.
Preferably, before described tomato peel is extracted, the water content ranges of described tomato peel is regulated, by its water content control in the scope of 5wt%-90wt%.
Wherein, described subcritical fluids refers to and is above the boiling point, lower than critical temperature and emergent pressure, the material that exists with fluid form.In the present invention, described subcritical fluids comprises the mixture with the ether of subcritical fluids form existence or ether and alkane, described ether comprises methyl ether, methyl ethyl ether and/or ether, described alkane comprises propane, butane, Trimethylmethane, Refrigerant 12, monochlorotrifluoromethane, dichlorofluoromethane, trichlorofluoromethane, 1,2-dichloro tetrafluoro ethane, 1,1,1, one or more in 2-Tetrafluoroethane, but be not limited to this.
More preferably, described subcritical fluids is the mixture with the methyl ether of subcritical fluids form existence or butane or methyl ether and butane.
Preferably, during extraction, the weight ratio controlling described tomato peel and described subcritical fluids is 1:(1-20).
Preferably, in described step (1), described subcritical fluids extracts with the flow of 1kg/h-50kg/h.
In step (3), in extraction process, the valve regulating separating still 2 and collect between still 3, makes to enter as described tomato peel extraction mixture liquid to collect in still 3, to monitor described tomato peel extract in real time.
As preferred embodiment, the subcritical fluids described in the present invention can recycle.Specifically, recycling of described subcritical fluids can be realized as follows:
Collect and cool the gaseous state subcritical fluids of gained in described step (3), being collected in gas-holder 5 through surge tank 4 through the condensed liquid subcritical fluids of heat exchanger 7; When the pressure of extraction kettle 1 is lower than set(ting)value, start compressor 9, the liquid subcritical fluids in gas-holder 5 is sent into extraction kettle 1; After to be extracted, extraction kettle 1 is vacuumized, remove remaining subcritical fluids, and deliver in gas-holder 5 after surge tank 4 and heat exchanger 7 condensation.So move in circles formative dynamics cycling extraction system.
Embodiment
The following example is intended to citing further and describes the present invention, instead of limit the present invention by any way, under the prerequisite not deviating from the spirit and principles in the present invention, any change that those of ordinary skill in the art made for the present invention easily realize or change all will fall within the scope of accompanying claims of the present invention.
In following embodiment, the content of Lyeopene repeatedly extracts raw material with organic solvent, until redfree is separated out in material, concentrated after combining extraction liquid, then adopt HPLC method to detect gained content of lycopene and (please refer to Zhang Liang, Zhang Kunsheng, Lv Xiaoling, Zhu Huili, Zhai Hongmei, the research of Lycopene Determination Method, Chinese food journal, 2005 (5): 75-78.) measure.In addition, total extraction yield of Lyeopene obtains with following formulae discovery:
In formula, the water content of raw material adopts GB5009.3-2010 direct drying method to measure.
Embodiment 1
Tomato peel Task-size Controlling through pulverizing is at 80-100 order, control the water content of tomato peel at 90wt%, take the above-mentioned tomato peel of 3500g (mensuration content of lycopene is 18.6mg/100g), drop into subcritical abstraction still, pass into methyl ether subcritical fluids, the weight ratio of described methyl ether subcritical fluids and tomato peel is 1:20, control flow to extract at 50kg/h, it is 15 DEG C in extraction temperature, under pressure 0.4MPa, the complete submergence tomato peel of described methyl ether subcritical fluids is extracted, continuous circulation extraction 6h, obtain tomato peel extraction mixture.
Control separation temperature is 40 DEG C, separating pressure is 0.2MPa, the fat-soluble component organic phase containing Lyeopene and aqueous mixture is obtained after being separated, described organic phase obtains amaranth oily matter (tomato peel extract) 36g containing Lyeopene after being separated and dewatering, and wherein lycopene concentration is 138mg/100g; The total extraction yield of Lyeopene is 76.31%.
Embodiment 2
Tomato peel Task-size Controlling through pulverizing is at 60-80 order, control the water content of tomato peel at 50wt%, take the above-mentioned tomato peel of 700g (mensuration content of lycopene is 17.8mg/100g), drop into subcritical abstraction still, pass into methyl ether and butane mixed stream, the volume ratio of methyl ether and butane is 1:1, the weight ratio of described subcritical fluids and tomato peel is 1:5, control flow to extract at 5kg/h, it is 40 DEG C in extraction temperature, under pressure 1MPa, the complete submergence tomato peel of described subcritical fluids is extracted, continuous circulation extraction 4h, obtain tomato peel extraction mixture.
Control separation temperature is 60 DEG C, separating pressure is 0.8MPa, the fat-soluble component organic phase containing Lyeopene and aqueous mixture is obtained after being separated, described organic phase obtains amaranth oily matter (tomato peel extract) 36g after being separated and dewatering, wherein lycopene concentration is 153mg/100g, and the total extraction yield of Lyeopene is 87.62%.
Embodiment 3
Tomato peel Task-size Controlling through pulverizing is at 60-80 order, control the water content of tomato peel at 50wt%, take the above-mentioned tomato peel of 700g (mensuration content of lycopene is 15.2mg/100g), drop into subcritical abstraction still, pass into methyl ether and butane mixing subcritical fluids, the volume ratio of methyl ether and butane is 3:2, the weight ratio of described subcritical fluids and tomato peel is 1:10, control flow to extract at 10kg/h, it is 40 DEG C in extraction temperature, under pressure 1MPa, the complete submergence tomato peel of described subcritical fluids is extracted, continuous circulation extraction 4h, obtain tomato peel extraction mixture.
Control separation temperature is 60 DEG C, separating pressure is 0.8MPa, the fat-soluble component organic phase containing Lyeopene and aqueous mixture is obtained after being separated, described organic phase obtains amaranth oily matter (tomato peel extract) 33g after being separated and dewatering, and wherein lycopene concentration is 149mg/100g; The total extraction yield of Lyeopene is 92.42%.
Comparative example 1
Tomato peel Task-size Controlling through pulverizing is at 40-60 order, control the water content of tomato peel at 5wt%, take the above-mentioned tomato peel of 350g (mensuration content of lycopene is 15.7mg/100g), drop into subcritical abstraction still, pass into propane subcritical fluids, the weight ratio of described propane subcritical fluids and tomato peel is 1:1, control flow to extract at 1kg/h, extraction temperature be 60 DEG C, under pressure 4MPa, the complete submergence tomato peel of described propane subcritical fluids is extracted, continuous circulation extraction 0.5h, obtains tomato peel extraction mixture;
Control separation temperature is 60 DEG C, separating pressure is 2MPa, the fat-soluble component organic phase containing Lyeopene and aqueous mixture is obtained after being separated, described organic phase obtains amaranth oily matter (tomato peel extract) 17g containing Lyeopene after being separated and dewatering, and wherein lycopene concentration is 86mg/100g; The total extraction yield of Lyeopene is 28.01%.
Comparative example 2
Tomato peel Task-size Controlling through pulverizing is at 60-80 order, control the water content of tomato peel at 50wt%, take the above-mentioned tomato peel of 700g (mensuration content of lycopene is 17.2mg/100g), drop into subcritical abstraction still, pass into 1, 1, 1, 2-Tetrafluoroethane subcritical fluids, described 1, 1, 1, the weight ratio of 2-Tetrafluoroethane subcritical fluids and tomato peel is 1:10, control flow to extract at 10kg/h, it is 40 DEG C in extraction temperature, under pressure 1MPa, make described 1, 1, 1, the complete submergence tomato peel of 2-Tetrafluoroethane subcritical fluids extracts, continuous circulation extraction 4h, obtain tomato peel extraction mixture.
Control separation temperature is 60 DEG C, separating pressure is 0.8MPa, the fat-soluble component organic phase containing Lyeopene and aqueous mixture is obtained after being separated, described organic phase obtains amaranth oily matter (tomato peel extract) 13g containing Lyeopene after being separated and dewatering, and wherein lycopene concentration is 32.4mg/100g; The total extraction yield of Lyeopene is 7.0%.
As can be seen from above embodiment and comparative example, traditional subcritical fluid is when processing high moisture material, and because fluid itself is for polar system poor solubility, extraction efficiency is relatively on the low side.And adopt the solvent system proportioning of this patent, also can obtain good effect of extracting when the moisture content of the tomato peel as raw material is higher.
Claims (10)
1. the method adopting subcritical fluids to extract tomato peel, is characterized in that, said method comprising the steps of:
(1) by the tomato peel pulverized temperature 15-60 DEG C, under pressure 0.4-4MPa, adopt subcritical fluid extraction 0.5-6h, obtain tomato peel extraction mixture;
(2) described tomato peel extraction mixture step (1) obtained remains on temperature 40-60 DEG C, under pressure 0.2-2MPa, makes described subcritical fluids gasification wherein, obtains tomato peel extract.
2. the method adopting subcritical fluids to extract tomato peel, is characterized in that, said method comprising the steps of:
(1) tomato peel is placed in extraction kettle (1), opens described extraction kettle (1), separating still (2) and vacuum pump (8), system is vacuumized with the air in discharge system; Afterwards, close the valve between extraction kettle (1) and separating still (2), connect gas cylinder (6), pass into subcritical fluids, make tomato peel to be extracted be soaked in described subcritical fluids, keep temperature 15-60 DEG C, under pressure 0.4-4MPa, extraction 0.5-6h;
(2) by the pressure difference between described extraction kettle (1) and described separating still (2), in described separating still (2), obtain tomato peel extraction mixture, in described extraction kettle (1), retain tomato peel extract remainder and part subcritical fluids;
(3) valve between described extraction kettle (1) and described separating still (2) is regulated, the temperature controlling described separating still (2) is 30-60 DEG C, pressure is 0.2-2MPa, gasify after making the described tomato peel subcritical fluids extracted in mixture enter separating still, in separating still (2), precipitation enrichment obtains described tomato peel extract.
3. method according to claim 1 and 2, is characterized in that, before extracting described tomato peel, carries out pulverization process to described tomato peel, makes the size-grade distribution of described tomato peel be 40-100 order.
4. the method according to any one of claim 1-3, is characterized in that, before extracting described tomato peel, regulates, by its water content control in the scope of 5wt%-90wt% the water content ranges of described tomato peel.
5. the method according to any one of claim 1-4, it is characterized in that, described subcritical fluids is the mixture with the ether of subcritical fluids form existence or ether and alkane, described ether comprises methyl ether methyl ethyl ether and/or ether, described alkane comprises propane, butane, Trimethylmethane, Refrigerant 12, monochlorotrifluoromethane, dichlorofluoromethane, trichlorofluoromethane, 1,2-dichloro tetrafluoro ethane, 1, and 1, one or more in 1,2-Tetrafluoroethane.
6. method according to claim 5, is characterized in that, described subcritical fluids is the mixture with the methyl ether of subcritical fluids form existence or butane or methyl ether and butane.
7. the method according to any one of claim 1-6, is characterized in that: in described step (1), during extraction, and the weight ratio controlling described tomato peel and described subcritical fluids is 1:(1-20).
8. the method according to any one of claim 1-7, is characterized in that: in described step (1), described subcritical fluids extracts with the flow of 1kg/h-50kg/h.
9. the method according to any one of claim 1-8, is characterized in that, collect and cool the gaseous state subcritical fluids that described gasification obtains, liquid subcritical fluids condensation obtained recycles.
10. method as claimed in claim 9, wherein, described collection cool the gaseous state subcritical fluids that described gasification obtains and carry out as follows: be collected in gas-holder (5) through the condensed liquid subcritical fluids of heat exchanger (7) through surge tank (4); When the pressure of extraction kettle (1) is lower than set(ting)value, start compressor (9), the liquid subcritical fluids in gas-holder (5) is sent into extraction kettle (1); After to be extracted, extraction kettle (1) vacuumized, removes remaining subcritical fluids, and deliver in gas-holder (5) after surge tank (4) and heat exchanger (7) condensation.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836835A (en) * | 2016-05-26 | 2016-08-10 | 陕西省石油化工研究设计院 | Method for multi-stage extraction treatment of degradation-resistant high organic substance salt wastewater by employing subcritical fluid |
| CN107056574A (en) * | 2017-02-03 | 2017-08-18 | 深圳市江牧实业有限公司 | A kind of method for extracting lycopene |
| CN110256189A (en) * | 2019-07-19 | 2019-09-20 | 长沙卫一生物科技有限公司 | The technique of lycopene is extracted from tomato peel |
| CN113045377A (en) * | 2021-04-30 | 2021-06-29 | 中国药科大学 | Preparation method of lycopene particles based on combined process of subcritical extraction and supercritical granulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101987809A (en) * | 2009-08-05 | 2011-03-23 | 甘肃省格瑞斯生物科技有限公司 | Production technology for extracting purified lycopene from tomato waste residue |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101987809A (en) * | 2009-08-05 | 2011-03-23 | 甘肃省格瑞斯生物科技有限公司 | Production technology for extracting purified lycopene from tomato waste residue |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836835A (en) * | 2016-05-26 | 2016-08-10 | 陕西省石油化工研究设计院 | Method for multi-stage extraction treatment of degradation-resistant high organic substance salt wastewater by employing subcritical fluid |
| CN105836835B (en) * | 2016-05-26 | 2019-04-16 | 陕西省石油化工研究设计院 | The method that subcritical fluids multitple extraction handles high organic matter brine waste difficult to degrade |
| CN107056574A (en) * | 2017-02-03 | 2017-08-18 | 深圳市江牧实业有限公司 | A kind of method for extracting lycopene |
| CN110256189A (en) * | 2019-07-19 | 2019-09-20 | 长沙卫一生物科技有限公司 | The technique of lycopene is extracted from tomato peel |
| CN110256189B (en) * | 2019-07-19 | 2022-02-08 | 长沙卫一生物科技有限公司 | Process for extracting lycopene from tomato peel residue |
| CN113045377A (en) * | 2021-04-30 | 2021-06-29 | 中国药科大学 | Preparation method of lycopene particles based on combined process of subcritical extraction and supercritical granulation |
| CN113045377B (en) * | 2021-04-30 | 2023-02-28 | 中国药科大学 | Preparation method of lycopene particles based on combined process of subcritical extraction and supercritical granulation |
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