CN107629481A - The production method of the marigold particles of lutein content can be improved - Google Patents
The production method of the marigold particles of lutein content can be improved Download PDFInfo
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- CN107629481A CN107629481A CN201710797059.1A CN201710797059A CN107629481A CN 107629481 A CN107629481 A CN 107629481A CN 201710797059 A CN201710797059 A CN 201710797059A CN 107629481 A CN107629481 A CN 107629481A
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Abstract
The invention discloses the production method for the marigold particles that can improve lutein content, belongs to natural pigment manufacture field.The marigold of fresh harvesting passes through to be handled with lactic acid bacteria dilution priority fermenting twice, physical impact drying and dewatering, water-cooled cooling, is carried out crushing granulation under inert gas shielding afterwards, has been obtained marigold particles；Carry out recycling to remaining marigold and lutein in waste water after physical impact with membrane filtration using flame filter press successively simultaneously, it is possible to increase the lutein content in marigold process.The present invention has the advantages of marigold particles lutein content of output is high, and waste water is beneficial to processing.
Description
Technical field
It is a kind of raw material marigold extracted before lutein to extracting lutein the invention belongs to natural pigment manufacture field
The method pre-processed, in particular to the method for preparing marigold particles.
Background technology
Containing abundant lutein in marigold flower, marigold is the primary raw material source for extracting natural carotenol.Carrying
Take before lutein, it is necessary to pre-processed to marigold, particle is made by marigold flower is fermented, makes the leaf in marigold particles
Flavine is mostly in free state, and reusing organic solvent after granulation extracts free lutein, is obtained after extraction
Product by the lutein extract rich in lutein.Preprocessing processing procedure before lutein is extracted to the marigold after harvesting
Can have a great impact to marigold particles Lutein content.Marigold processing pre-treating technology process relatively conventional at present
Mainly include marigold flower fermentation, fermentation after material extrusion dehydration, high temperature drying, high temperature crush, granulation etc..But at present to ten thousand longevity
Many shortcomings be present in chrysanthemum pretreating process and the process for preparing marigold particles.The fermentation process of the pre-treatment of marigold processing at present
Fermentation process is all typically completed using one time fermentation, there is that fermentation time is long, fermented quality is poor, loses raw material Lutein
It is more.Marigold fermented quality difference can also increase difficulty of the particle during lutein is extracted, particle material residue middle period after extraction
Flavine residual is high, remains more lutein in the particle after being extracted, causes pigment to be lost in.Wu Xingzhuan etc. exists《Marigold
Fresh flower lactobacillus-fermented technical research》Current marigold lactobacillus-fermented technology is described in one text, fermentation time is 15~20
My god, fermentation costs are so considerably increased, are unfavorable for producing in enormous quantities.
Extrusion dehydration should be carried out after marigold fermentation to the moisture in material, part marigold is had during extrusion dehydration
Fragment enters in the waste water squeezed out, and these waste water are usually and directly discharged at present.Chinese patent literature
CN200710122639.7 discloses a kind of processing method of marigold fermentation pressed liquor flower mud, and this method into waste water by adding
Enter the purpose that absorption carrier reaches recovery retained material, this method adds adsorbent due to needing, and causes to there may exist subsequently
Pollution problem.
The drying course of the pre-treatment of marigold processing at present is dried using direct combustion high temperature, i.e., is made using coal or natural gas
For thermal source, directly the marigold after fermentation is dried using their flue gas, so the hazardous material in flue gas can be caused to enter
Enter in marigold, the granulation process of technique is also to be carried out in open environment at present, so all pollutes marigold product, destroys leaf
The quality of flavine.Other drying course medium temperature, which spends height, can reduce marigold Lutein content.
The content of the invention
The technical problem to be solved in the invention is to provide a kind of method for pre-processing marigold, and it can make marigold
Grain Lutein content keeps higher level, does not destroy the quality of marigold product.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
The production method of the marigold particles of lutein content, including fermentation, water squeezing, drying, crushing process can be improved,
It is characterized in that：The fermentation process carries out fermenting twice with lactic acid bacteria dilution to marigold, and then extruding drying, is being dried
Handled afterwards using wind cooling temperature lowering, then crush granulation again.
The present invention it is above-mentioned technical proposal further improvement is that：Marigold used is fresh harvesting in fermentation process
's.
Technical solution of the present invention further improvement is that：The lactic acid bacteria is Bacillus acidi lactici, streptococcus thermophilus, a bright beading
Any of bacterium, Bifidobacterium or juice coccus.
Technical solution of the present invention further improvement is that：Used lactic acid bacteria dilution is by lactic acid during first fermentation
Bacterium stoste is uniformly sprayed at marigold surface after being diluted with water to 0.1~0.2%, fermentation temperature is controlled at 35~40 DEG C, is used
Oxygen-free seal sunshade is fermented, and fermentation time is 4~5 days；Used lactic acid bacteria dilution is by lactic acid during secondary fermentation processing
Bacterium stoste is diluted with water to the marigold surface after first fermentation is uniformly sprayed to after 0.05~0.1%, and fermentation temperature control exists
30~35 DEG C, fermentation method ferments for oxygen-free seal sunshade, fermentation time 24~48 hours；Lactic acid bacteria in the lactic acid bacteria stoste
Activity be 1 × 1011~1.5 × 1011cfu/g。
The present invention it is above-mentioned technical proposal further improvement is that：Extrusion process is to the marigold after secondary fermentation
Physical impact dehydration is carried out, while using flame filter press and filter membrane sequentially to the residual in the waste water of output after physical impact
Marigold and lutein are recovered by filtration, and the residual marigold of recovery and lutein are added to the marigold after extrusion dehydration
In.
The present invention it is above-mentioned technical proposal further improvement is that：The filtering accuracy of the flame filter press be 100~
500 mesh, the precision of the filter membrane is 300~500nm；Solid content≤0.001% in waste water after filtering.
Technical solution of the present invention further improvement is that：Drying course is using carrier bar dryer by the hot blast that exchanges heat to squeezing
Material after pressure carries out drying and dewatering, and marigold moisture is below 25% after control drying；It is rapid using water-cooling fan after drying
Crushed, pelletized under inert gas shielding after cooling, obtain marigold particles.
The present invention it is above-mentioned technical proposal further improvement is that：The temperature control of hot blast is at 100~150 DEG C, drying
Time is 30~60s, and temperature fall time is not more than 5s.
Technical solution of the present invention further improvement is that：The inert gas is nitrogen or carbon dioxide.
Technical solution of the present invention further improvement is that：Lutein content ＞ 30g/ in obtained marigold particles
kg。
By adopting the above-described technical solution, the technological progress that the present invention obtains is：
Marigold particles are prepared using the method for the present invention, marigold particles Lutein content can be made to keep higher
Level, and the quality of marigold product is not destroyed.Substantially shorten marigold fermentation time, lifting fermentation compared with routine techniques
Effect and efficiency, have saved production cost.
The present invention carries out two with lactic acid bacteria dilution in fermentation process from the fresh marigold flower newly plucked to marigold
Secondary fermentation, shortens fermentation time.With the lactic acid bacteria dilution that concentration is higher in first time fermentation process, and at higher temperatures
Fermentation, the cell membrane of fresh marigold flower can be so destroyed rapidly, during subsequent secondary fermentation, it is only necessary to by process
The lactic acid bacteria dilution of the marigold surface supplement sprinkling low concentration of first fermentation, just can using low concentration lactic acid bacteria dilution
Make marigold Rapid Fermentation, the design of secondary fermentation can make fermentability get a promotion, and fermentation time substantially shortens, and makes
Have in final obtained marigold particles compared with high lutein content, solve in first single fermentation marigold particles after extraction
The problem of material residue Lutein remains height, causes pigment to be lost in.The present invention, as raw material, was fermented using fresh marigold flower
Marigold used is fresh harvesting in journey, and now fresh marigold flower Lutein content is sufficient, is not also allowed in fermentation process
Easily cause loss.It is to promote fresh flower Rapid Fermentation using lactic acid bacteria dilution as the advantages of leavening, lifts ferment effect；Hair
Ferment effect is better, and attenuation degree is higher, and flower Lutein is more easy to be extracted out；Lactic acid bacteria dilution can prevent fresh simultaneously
Spend and rot to go mouldy, so as to protect fresh flower pigment not lose.
The kinds of lactobacillus that the fermentation process of the present invention uses is Bacillus acidi lactici, streptococcus thermophilus, leukonid, bifid bar
Any of bacterium or juice coccus, these lactic acid bacterias will not destroy natural component in marigold, ensure the pollution-free of final products.
The present invention first cultivates lactic acid bacteria stoste, its lactic bacteria activity is reached 1 × 1011~1.5 × 1011Between cfu/g, what cfu/g referred to
Total plate count when being the number of viable or count plate that contain in every gram of sample, then lactic acid bacteria stoste is diluted,
Lactic acid bacteria dilution is made it is sprayed onto marigold surface and is fermented.For common straight dough methods, the present invention
The lactic acid bacteria dosage used is less.The activity for the lactic acid bacteria dilution that one time fermentation uses must be 2 × 1011More than cfu/g, institute
High with lactic bacteria activity, then fermentation costs are big, and secondary fermentation of the invention saves cost in this regard, embodies advantage.
Anaerobic is used in the whole fermentation process of the present invention, seals and avoids direct sunlight from fermenting, lactic acid bacteria can be made more active,
Fermentation time is reduced, improves product quality.
The extrusion process of the present invention can use double-screw type extruder to make ten thousand longevity after fermentation using physical impact method
Chrysanthemum is dehydrated, and the filter membrane double-filtrations such as flame filter press and ceramic membrane, sheet frame mistake are used to the waste water squeezed out in extrusion process
Filter can retain the marigold fragment remained in waste water, and ceramic membrane will can filter back into fermentation waste water Lutein
Receive.The residual marigold of recovery and lutein are added in the marigold after extrusion dehydration.Marigold fragment is most main in sewage
The oxygen consumption organic (COD, BOD content) wanted, the filter method that the present invention uses can thoroughly reclaim retained material in waste water,
Both raw material is taken full advantage of, alleviates the pressure of sewage disposal again, waste water is beneficial to processing.The present invention is by further controlling sheet frame
The filtering accuracy of filter and filter membrane (using ceramic membrane), using coarse filtration, fine filtering secondary filtration, return marigold, lutein
Receive ratio more thoroughly, solve the problems, such as to remain marigold in waste water in first technology with discharge of wastewater, solid in waste water after filtering
Thing content can≤0.001%, it is no longer necessary into waste water add adsorbent handled, in the absence of subsequent contamination problem；Always
Body improves the lutein content in marigold process.
The present invention drying course be by the material after extruding be layered on carrier bar dryer by the hot blast that exchanges heat to extruding after
Material carry out drying further dehydration, marigold material can be made uniformly to dry, using the hot blast to be exchanged heat through over-heat-exchanger,
Pollution of the material by coal, natural gas flue dust etc. will not be made as first technology, reduce the hazardous material content in material.This
For the temperature control of the hot blast of invention at 100~150 DEG C, drying time is 30~60s, and the control of marigold moisture is 25% after drying
Hereinafter, it is convenient to crush and be granulated.
The present invention makes material cool rapidly using after drying using water-cooling fan, and material drops in can within several seconds
To room temperature, crushed, pelletized in the environment of starvation under inert gas shielding afterwards, inert gas shielding avoids oxygen
Contact of the gas with material, reduce the oxidation to lutein in pelletization, high temperature when reducing granulation is to lutein content
Destruction, at utmost avoid the loss of lutein, improve the content of marigold particles Lutein.Inert gas is selected
It is not only cheap but also not other chemical reactions occur for marigold Lutein etc. for nitrogen or carbon dioxide.
Using the lutein content ＞ 30g/kg in marigold particles made from the method for the present invention, facilitate subsequently to leaf
The extraction of flavine, make the output increased of lutein.
The present invention passes through priority fermenting twice, physical impact drying and dewatering, at water-cooled cooling with the marigold of fresh harvesting
Reason, crushing granulation is carried out under inert gas shielding, has obtained marigold particles afterwards.Sheet frame and membrane filtration are used successively simultaneously
To the recycling of retained material and lutein in waste water after physical impact, the lutein in general increase marigold process
Content, and there is the advantages of marigold particles lutein content of output is high, and waste water is beneficial to processing.It is pre- to solve conventional marigold
The problem of material content is big in fermentation time length, waste water in process and dries the oxidation of pelletization Lutein, optimization
Marigold processing technology.The present invention is combined using low-temperature heat exchange drying and starvation granulation, avoids fuel hazardous material to original
The pollution of material reduces the oxidation in pelletization to lutein simultaneously, at utmost improves marigold particles Lutein
Content.Low temperature drying cools rapidly to be used in combination with cold wind can reduce the production such as lutein and oxygen, high temperature, illumination to greatest extent
Raw reaction, prevents lutein from losing reproducibility, reduces the loss of lutein content to greatest extent, it is processed to improve marigold
Lutein content in journey.
Embodiment
The present invention is described in further details with reference to embodiment：
The production method of the marigold particles of lutein content, including fermentation, water squeezing, drying, crushing process can be improved.
Marigold used in the present invention is fresh harvesting.
Fermentation process carries out fermenting twice with lactic acid bacteria dilution to marigold, and then extruding drying, is used after the drying
Wind cooling temperature lowering processing, then crushes granulation again.
Lactic acid bacteria used in fermenting twice process is Bacillus acidi lactici, streptococcus thermophilus, leukonid, Bifidobacterium or juice ball
Any of bacterium, the suitable field of activity of lactic acid bacteria is 1 × 10 in lactic acid bacteria stoste11~1.5 × 1011cfu/g.For the first time
It is that lactic acid bacteria stoste is diluted with water to after the 0.1~0.2% of lactic acid bacteria original liquid concentration to obtain lactic acid bacteria dilution during fermentation, so
Direct Uniform is sprayed at the surface of marigold and fermented afterwards, and at 35~40 DEG C, fermentation time is 4~5 days for fermentation temperature control；
Lactic acid bacteria stoste is diluted with water to after the 0.05~0.1% of lactic acid bacteria original liquid concentration during second of fermentation process and obtains lactic acid bacteria
Dilution, then Direct Uniform be sprayed to through first time ferment after marigold surface, fermentation temperature control at 30~35 DEG C, hair
24~48 hours ferment time.Fermenting twice process is fermented under conditions of sealing, sunshade, anaerobic.
Fermentation is that water process is gone in the extruding to the marigold material of fermentation afterwards.Extrusion process is to use double-screw type extruder
Physical impact is carried out to the marigold after secondary fermentation, the moisture content in extruded material, while sheet frame mistake is used to the waste water of extrusion
Filter and ceramic filter membrane sequentially carry out double-filtration, and the filtering accuracy of flame filter press is 100~500 mesh, ceramic filter membrane
Precision be 300~500nm；And in waste water take marigold out of and lutein is recovered by filtration, the longevity of residual ten thousand of recovery
Chrysanthemum and lutein are added in the marigold after extrusion dehydration；Lutein is non-water soluble substance, can be disperseed in water into particle
State is present, can be small to what is disperseed in solution using filter membrane after using plate-frame filtering by marigold raw materials recovery
Lutein particle carries out secondary filter recovery.After filtering in waste water solid content should≤0.001%.
The drying course of the present invention is that the marigold material after extrusion dehydration is uniformly laid on carrier bar dryer, with heat
Wind carries out drying and dewatering to the material after extruding, and the hot blast used is caused by heat exchanger exchange, it is impossible to is directly used
Hot gas containing cigarette caused by fuel.For the temperature control of hot blast at 100~150 DEG C, drying time is about 30~60 seconds.Controlled after drying
Marigold moisture can also reach less than 20% between 20~25%；Material is dried using water-cooling fan after drying, makes it
Rapid cooling, temperature fall time were controlled at 3~5 seconds, i.e., can drop to normal temperature.Afterwards can be in the indifferent gas such as nitrogen or carbon dioxide
Crushed, pelletized under body protection, obtain marigold particles.After above-mentioned processing, in marigold particles produced by the present invention
Lutein content ＞ 30g/kg.
Embodiment 1
The method of the present embodiment production marigold particles includes fermentation, water squeezing, drying, crushing process.Marigold used
It is the fresh marigold flower of same day harvesting.Fermentation process is to carry out fermenting twice to marigold with Bacillus acidi lactici dilution, so
Extruding drying afterwards, is handled using wind cooling temperature lowering, then crushes granulation again after the drying.Bacillus acidi lactici in the stoste of Bacillus acidi lactici
Activity be 1.25 × 1011cfu/g。
Bacillus acidi lactici dilution used is that Bacillus acidi lactici stoste is diluted with water into 0.15% when fermenting for the first time, then
The surface of marigold is uniformly sprayed at, at 38 DEG C, fermentation time is 4.5 days for fermentation temperature control；Institute during second of fermentation process
Bacillus acidi lactici dilution is that lactic acid bacteria stoste is diluted with water into 0.75%, and then Direct Uniform is sprayed to sends out through first time
Marigold surface after ferment, fermentation temperature control is at 33 DEG C, fermentation time 36 hours.Fermenting twice process sealing, sunshade,
Fermented under conditions of anaerobic.
Fermentation is that water process is gone in the extruding to the marigold material of fermentation afterwards.Extrusion process is to use double-screw type extruder
Physical impact is carried out to the marigold after secondary fermentation, the moisture content in extruded material, while sheet frame mistake is used to the waste water of extrusion
Filter and ceramic filter membrane sequentially carry out double-filtration, and the filtering accuracy of flame filter press is 300 mesh, the precision of ceramic filter membrane
For 400nm；And in waste water take marigold out of and lutein is recovered by filtration, the residual marigold of recovery and lutein add
Enter in the marigold to after extrusion dehydration.Solid content is 0.0008% in waste water after detection filtering.
The drying course of the present embodiment is that the marigold material after extrusion dehydration is uniformly laid on carrier bar dryer, is used
By heat exchanger exchange, caused hot blast carries out drying and dewatering to the material after extruding and (can not directly use and contain caused by fuel
Cigarette hot gas).For the temperature control of hot blast at 125 DEG C, drying time is about 45 seconds.Material is dried using water-cooling fan after drying,
It is set to cool rapidly, temperature fall time control made material drop to normal temperature in 4 seconds.Now the moisture in detection marigold material is
20%.Crushed, pelletized under nitrogen protection afterwards, obtain marigold particles.After above-mentioned processing, the present embodiment system is detected
Lutein content in the marigold particles obtained is 35g/kg.
Embodiment 2
The present embodiment and the process of embodiment 1 are essentially identical, and difference is：
Marigold used is the fresh marigold flower of the previous day harvesting.
Lactic acid bacteria used in fermenting twice process is streptococcus thermophilus, the streptococcus thermophilus activity in streptococcus thermophilus stoste
For 1 × 1011cfu/g.Streptococcus thermophilus dilution used is to be diluted with water to streptococcus thermophilus stoste when fermenting for the first time
0.1%, at 35 DEG C, fermentation time is 4 days for fermentation temperature control.Streptococcus thermophilus dilution used during second of fermentation process
It is that streptococcus thermophilus stoste is diluted to 0.05%, fermentation temperature control is at 30 DEG C, fermentation time 24 hours.
When extruding after fermentation goes to filter the waste water of extrusion during water, the filtering of the flame filter press used
Precision is 100 mesh, and the precision of ceramic filter membrane is 300nm, and after so handling, solid content is in waste water after detection filtering
0.001%.
The temperature for the hot blast that the drying course of the present embodiment uses is 100 DEG C, and drying time is about 30 seconds, and temperature fall time is
3 seconds, detection marigold moisture was 25%, and the lutein content in marigold particles is 34g/kg.
Embodiment 3
The present embodiment and the process of embodiment 1 are essentially identical, and difference is：
Lactic acid bacteria used in fermenting twice process is leukonid, and the leukonid activity in leukonid stoste is 1.5
×1011cfu/g.Leukonid dilution used is that leukonid stoste is diluted with water into 0.2% when fermenting for the first time, hair
For ferment temperature control at 40 DEG C, fermentation time is 5 days.Leukonid dilution used is by a bright beading during second of fermentation process
Bacterium stoste is diluted to 0.1%, and fermentation temperature control is at 35 DEG C, fermentation time 48 hours.
When extruding after fermentation goes to filter the waste water of extrusion during water, the filtering of the flame filter press used
Precision is 500 mesh, and the precision of ceramic filter membrane is 500nm, and after so handling, solid content is in waste water after detection filtering
0.0005%.
The temperature for the hot blast that the drying course of the present embodiment uses is 150 DEG C, and drying time is about 60 seconds, and temperature fall time is
5 seconds, detection marigold moisture was 10%, and the lutein content in marigold particles is 31g/kg.
Embodiment 4
The present embodiment and the process of embodiment 1 are essentially identical, and difference is：
Lactic acid bacteria used in fermenting twice process is Bifidobacterium, and the Bifidobacterium activity in Bifidobacterium stoste is 1.3
×1011Cfu/g, Bifidobacterium dilution used is to be diluted with water to Bifidobacterium bacterium stoste when fermenting for the first time
0.18%, at 37 DEG C, fermentation time is 4 days for fermentation temperature control.Bifidobacterium dilution used during second of fermentation process
It is that Bifidobacterium stoste is diluted to 0.08%, fermentation temperature control is at 34 DEG C, fermentation time 30 hours.
When extruding after fermentation goes to filter the waste water of extrusion during water, the filtering of the flame filter press used
Precision is 350 mesh, and the precision of ceramic filter membrane is 450nm, and after so handling, solid content is in waste water after detection filtering
0.0006%.
The temperature for the hot blast that the drying course of the present embodiment uses is 120 DEG C, and drying time is about 40 seconds, and temperature fall time is
4 seconds, detection marigold moisture was 20%, and the lutein content in the marigold particles obtained through bifidobacterium fermentation is respectively
32g/kg。
Embodiment 5
The present embodiment and the process of embodiment 1 are essentially identical, and difference is：
Lactic acid bacteria used in fermenting twice process is juice coccus, and the juice coccus in juice coccus stoste is 1.1 × 1011Cfu/g,
Juice coccus dilution used is that juice coccus stoste is diluted with water into 0.12% when fermenting for the first time, and fermentation temperature is controlled 39
DEG C, fermentation time is 4.5 days.Juice coccus dilution used is to be diluted to juice coccus stoste during second of fermentation process
0.06%, fermentation temperature control is at 31 DEG C, fermentation time 46 hours.
When extruding after fermentation goes to filter the waste water of extrusion during water, the filtering of the flame filter press used
Precision is 450 mesh, and the precision of ceramic filter membrane is 350nm, and after so handling, solid content is in waste water after detection filtering
0.0005%.
The temperature for the hot blast that the drying course of the present embodiment uses is 110 DEG C, and drying time is about 35 seconds, and temperature fall time is
4 seconds, detection marigold moisture was 22%, and the lutein content in the marigold particles for fermenting to obtain through juice coccus is respectively
31.5g/kg。
Claims (10)
1. the production method of the marigold particles of lutein content can be improved, including fermentation, water squeezing, drying, crushing process, its
It is characterised by：The fermentation process carries out fermenting twice with lactic acid bacteria dilution to marigold, then extruding drying, after the drying
Handled using wind cooling temperature lowering, then crush granulation again.
2. the production method of the marigold particles according to claim 1 that lutein content can be improved, it is characterised in that：
Marigold used is fresh harvesting in fermentation process.
3. the production method of the marigold particles according to claim 1 that lutein content can be improved, it is characterised in that：
The lactic acid bacteria is any of Bacillus acidi lactici, streptococcus thermophilus, leukonid, Bifidobacterium or juice coccus.
4. the production method of the marigold particles that can improve lutein content according to any one of claims 1 to 3, its
It is characterised by：Used lactic acid bacteria dilution is equal after lactic acid bacteria stoste is diluted with water into 0.1~0.2% during first fermentation
Even to be sprayed at marigold surface, fermentation temperature is controlled at 35~40 DEG C, is fermented using oxygen-free seal sunshade, and fermentation time is 4~5
My god；Used lactic acid bacteria dilution is equal after lactic acid bacteria stoste is diluted with water into 0.05~0.1% during secondary fermentation processing
The even marigold surface being sprayed to after first fermentation, fermentation temperature are controlled at 30~35 DEG C, and fermentation method is oxygen-free seal sunshade
Fermentation, fermentation time 24~48 hours；The activity of lactic acid bacteria is 1 × 10 in the lactic acid bacteria stoste11~1.5 × 1011cfu/g。
5. the production method of the marigold particles according to claim 4 that lutein content can be improved, it is characterised in that：
Extrusion process is that physical impact dehydration is carried out to the marigold after secondary fermentation, while suitable using flame filter press and filter membrane
Residual marigold and lutein in the secondary waste water to output after physical impact are recovered by filtration, the residual marigold of recovery and
Lutein is added in the marigold after extrusion dehydration.
6. the production method of the marigold particles according to claim 5 that lutein content can be improved, it is characterised in that：
The filtering accuracy of the flame filter press is 100~500 mesh, and the precision of the filter membrane is 300~500nm；Waste water after filtering
Middle solid content≤0.001%.
7. the production method of the marigold particles according to claim 4 that lutein content can be improved, it is characterised in that：
Drying course carries out drying and dewatering, marigold after control drying to the material after extruding using carrier bar dryer by the hot blast that exchanges heat
Moisture is below 25%；Crushed, pelletized under inert gas shielding after being cooled rapidly using water-cooling fan after drying, obtained
To marigold particles.
8. the production method of the marigold particles according to claim 7 that lutein content can be improved, it is characterised in that：
For the temperature control of hot blast at 100~150 DEG C, drying time is 30~60s, and temperature fall time is not more than 5s.
9. the production method of the marigold particles according to claim 7 that lutein content can be improved, it is characterised in that：
The inert gas is nitrogen or carbon dioxide.
10. the production method of the marigold particles according to claim 1 that can improve lutein content, its feature exist
In：Lutein content ＞ 30g/kg in obtained marigold particles.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111603797A (en) * | 2020-05-27 | 2020-09-01 | 云南博浩生物科技集团股份有限公司 | Method for recycling precipitates in fresh marigold flower squeezed water |
| CN114539115A (en) * | 2022-02-25 | 2022-05-27 | 云南立达尔生物科技有限公司 | Novel fermentation process of fresh marigold flowers |
| CN117210381A (en) * | 2023-11-09 | 2023-12-12 | 哈尔滨美华生物技术股份有限公司 | Lactobacillus paracasei and products for relieving visual fatigue and application thereof |
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| CN1903028A (en) * | 2006-05-25 | 2007-01-31 | 辽宁省农业科学院食品与加工研究所 | Fresh marigold flower lactic fermentation process |
| CN103588691A (en) * | 2013-11-28 | 2014-02-19 | 刘同宽 | Lutein extraction and treatment process |
| CN103626686A (en) * | 2013-12-09 | 2014-03-12 | 新疆特瑞生物科技有限公司 | Method for extracting lutein ester from marigold |
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| CN111603797A (en) * | 2020-05-27 | 2020-09-01 | 云南博浩生物科技集团股份有限公司 | Method for recycling precipitates in fresh marigold flower squeezed water |
| CN114539115A (en) * | 2022-02-25 | 2022-05-27 | 云南立达尔生物科技有限公司 | Novel fermentation process of fresh marigold flowers |
| CN117210381A (en) * | 2023-11-09 | 2023-12-12 | 哈尔滨美华生物技术股份有限公司 | Lactobacillus paracasei and products for relieving visual fatigue and application thereof |
| CN117210381B (en) * | 2023-11-09 | 2024-02-09 | 哈尔滨美华生物技术股份有限公司 | Lactobacillus paracasei and products for relieving visual fatigue and application thereof |
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