CN107201392A - A kind of method of cornstarch yellow wastewater processing - Google Patents
A kind of method of cornstarch yellow wastewater processing Download PDFInfo
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Abstract
The invention discloses a kind of method of cornstarch yellow wastewater processing, belong to technical field of waste water processing, including：1) by cornstarch yellow wastewater fermentation process to pH value to less than 3, then filter, obtain clear filtrate；2) clear filtrate is crossed into post processing, collects post liquid；3) by culture medium based on post liquid, added into basal medium after acetobacter xylinum, ferment at constant temperature, collect fermentation raffinate, and take out bacteria cellulose film, by bacteria cellulose Membrane cleaning, removal of impurities, immersion；4) quick lime is added into fermentation raffinate, precipitating proteins, filtering obtains crude protein, and collect filtrate；5) add middle addition quick lime to filtrate, staticly settle, crude lactic acid calcium is made；Or, filtrate is crossed into anion exchange resin, lactic acid solution is made in hot water elution.This method can produce the serial byproduct of high added value, while reaching BOD in the purpose of wastewater treatment, yellow wastewater5And CODCrClearance respectively reaches 98.9% and 97.6% or so.
Description
Technical field
The invention belongs to technical field of waste water processing, it is related to the emission reduction processing of cornstarch yellow seriflux and recycles and ask
A kind of topic, and in particular to method of cornstarch yellow wastewater processing.
Background technology
Starch has wide range of applications as the important raw material of current industry, is related to food, chemical industry, weaving, medicine etc. a variety of
Industry.China is world's second largest Starch Production state, is only second to the U.S., wherein cornstarch proportion highest.According to futures day
Report report, wherein about 68,800,000 tons of world's starch yield in 2013, cornstarch account for the 89% of total amount, and Chinese starch annual production is about
25000000 tons, the 36.3% of world's starch annual amount is accounted for, wherein cornstarch proportion is 94%, the starch of residue 6%
From potato starch, wheaten starch etc..With the whole world fast industrialization development, starch supply and demand market exist huge business opportunity and
Economic interests, but domestic cornstarch processing enterprise uses semi-enclosed technique productions at present, and a large amount of waste water are produced (again per annual meeting
Claim maize pulp-water), it was reported that more than about 1,700,000,000 tons of Chinese maize yellow seriflux discharge capacity in 2013.
At present, maize pulp-water is divided into two classes according to source, during one is soaking water, soaking technology, extracts big in corn
The waste water that part DDGS is produced；Two be washing process water, including corn crushes washings, germ washing water, fiber and squeezes water, forms sediment
Powder washings, starch dry the waste water such as water.Wastewater flow rate is produced in corn starch processing larger, typically often process 1 ton of corn
5~13m will be produced3Waste water, is determined through researcher, main into including carbohydrate, fiber, protein, fat, organic in waste water
The organic matters such as acid, enzyme, vitamin.Wherein, first kind immersion water concentration is high, the characteristics of with " four high one is low ", i.e., high chemistry need to
Oxygen amount (CODCr) (8,000~15,000mg/L), higher suspension solid (SS) (1,000~3,000mg/L), high total values of nitrogen might (240~
540mg/L), high concentration phosphorus hydrochlorate (in terms of P, about 15~130mg/L), low ph value (4.2~5)；During Equations of The Second Kind process water belongs to
Isoconcentration organic wastewater, CODCrValue is the 1/4~1/8 of first kind water, ammonia nitrogen value less than 20mg/L, phosphate concn 14~
32mg/L.Its water quality has the characteristics of being rich in nutrients in general, but biochemical is good, BOD5/CODCrMore than 0.5.It is used as jade
Rice starch processing industry waste water, the characteristics of maize pulp-water has " four high one is low " is more rich in carbohydrate, protein, phosphate etc.
Plant nutriment.The processing to maize pulp-water is utilized mainly including the following aspects at present：Reclaim albumen, produce unicellular
Albumen, production methane, organic acid, grease, carotenoid etc..But using the methods such as physical chemistry processing maize pulp-water not only
Difficulty is big, cost is high, deficiency in economic performance, and regenerant is single, and can cause the greatly wasting of resources.
The content of the invention
It is an object of the invention to provide a kind of method of cornstarch yellow wastewater processing, this method is simple to operate, energy
It is enough effectively to handle and recycle waste water, while producing the serial byproduct of high added value.
The present invention is to be achieved through the following technical solutions：
A kind of method of cornstarch yellow wastewater processing disclosed by the invention, comprises the following steps：
1) by cornstarch yellow wastewater fermentation process to pH value to less than 3, then by the waste water filtering after fermentation process,
Obtain clear filtrate；
2) using polyamines base weak-base ion exchange resin dress post, clear filtrate is crossed into post processing, post liquid was collected；
3) by culture medium based on post liquid, acetobacter xylinum is added into basal medium, is stood, ferment at constant temperature 6~
After 10 days, fermentation raffinate is collected, and takes out bacteria cellulose film, by bacteria cellulose Membrane cleaning, removal of impurities, immersion, until bacterium
The pH value of cellulose membrane is neutrality；
4) to step 3) fermentation raffinate in add quick lime, regulation pH value to 8~9, precipitating proteins, filtering is obtained
Crude protein, and collect filtrate；
5) middle addition quick lime is added to filtrate, regulation pH value is staticly settled to 10~11, and crude lactic acid calcium is made；Or, will
Filtrate crosses anion exchange resin, and lactic acid solution is made in hot water elution.
Preferably, step 1) in, by cornstarch yellow wastewater fermentation process to pH value to less than 3, concrete operations are side
Method one, method two or method three：
Method one：Cornstarch yellow wastewater is placed 10~15 days under anaerobic and carries out spontaneous fermentation, temperature is
Normal temperature；
Method two：Cornstarch yellow wastewater is accessed into lactic acid bacteria under anaerobic, temperature is normal temperature, and fermentation time is
3~5 days；
Method three：Cornstarch yellow wastewater is accessed into lactic acid bacteria under anaerobic, temperature is 40~44 DEG C, during fermentation
Between be 1~2 day.
Preferably, the lactic acid bacteria is lactobacillus bulgaricus or streptococcus thermophilus.
Preferably, step 1) it is described filtering be to be filtered the waste water after fermentation process with the filter screen of 150~200 mesh.
Preferably, step 2) in, post is filled with polyamines base weak-base ion exchange resin, the tool of post processing is crossed to clear filtrate
Concrete conditions in the establishment of a specific crime is：
1., applied sample amount：The packed column volume ratio of polyamines base weak-base ion exchange resin and clear filtrate is 1：(7~7.5)；
2., flow velocity：Every gram of polyamines base weak-base ion exchange resin per minute crosses 0.5~1mL clear filtrate, exchanges and holds
Measure as 1：(6~8)；
3., eluent：Hydrochloric acid 1:8 dilutions, dosage is 2 times of amount of resin, soaks 10~20 minutes, 6~8 times of amount of resin
Deionized water rinsing；
4. it is 6.5 that eluent, is neutralized into pH value with milk of lime, after staticly settling, filtering, and precipitation is Phytin.
Preferably, step 4) made from filtrate be used for precipitate Phytin.
Contain in basal medium：Sucrose 33.2g/L, CaCl23g/L, KH2PO41.2g/L, MgSO40.5g/L, ethanol
16.2ml/L.The amount that acetobacter xylinum is added in basal medium is 1%.
Preferably, step 3) in, it is that, by bacteria cellulose film deionized water rinsing surface, it is 1% to be first soaked in concentration
NaOH solution in, boil, remove thalline and raffinate, until bacteria cellulose film be creamy white it is translucent, then spend from
Sub- water cyclic washing immersion, until the pH value of bacteria cellulose film is neutrality.
Compared with prior art, the present invention has following beneficial technique effect：
The method of cornstarch yellow wastewater processing disclosed by the invention, is, using cornstarch yellow seriflux as raw material, to pass through
Lactic fermentation, Phytin are extracted, the step such as BC fermentations, extraction albumen, lactic acid.Take full advantage of the nutrients in corn starch wastewater
Material, and recycle zymotic fluid acquisition albumen and lactic acid.The serial byproduct that this method can produce high added value is (luxuriant and rich with fragrance
Spit of fland, bacteria cellulose, crude protein, lactic acid), while reaching the purpose of wastewater treatment so that BOD in corn gluten waste water5With
CODCrClearance respectively reaches 98.9% and 97.6% or so.On the one hand this recycling treatment mode solves BC industry production capacities
Not enough the problem of, fermenting and producing BC costs of material are reduced, on the other hand waste water are handled, lifting industrial economy and Environmental Effect
Benefit.
Brief description of the drawings
Fig. 1 is the flow chart of the processing of cornstarch yellow wastewater；
Fig. 2 is bacteria cellulose infrared spectrogram；Wherein, (a) is fine for the bacterium of cornstarch yellow wastewater fermenting and producing
Dimension element；(b) it is the bacteria cellulose of coconut juice fermenting and producing；
Fig. 3 is the microscopic appearance photo of bacteria cellulose；Wherein, (a) is the thin of cornstarch yellow wastewater fermenting and producing
Fungin；(b) it is the bacteria cellulose of coconut juice fermenting and producing；
Fig. 4 is bacteria cellulose photo.
Embodiment
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Referring to Fig. 1, it is the cornstarch yellow wastewater processing technological flow figure of the present invention, comprises the following steps：
1) method one：Cornstarch processing factory waste water is placed under anaerobic and carries out within 10~15 days spontaneous fermentation, temperature
Spend for normal temperature, pH value drops to less than 3, terminate spontaneous fermentation；Method two：By cornstarch processing factory waste water under anaerobic
Access lactic acid bacteria (lactobacillus bulgaricus, streptococcus thermophilus), temperature normal temperature, fermentation time 3~5 days, pH value drop to 3 with
Under, terminate fermentation；Method three：By cornstarch processing factory waste water access under anaerobic lactic acid bacteria (lactobacillus bulgaricus,
Streptococcus thermophilus), 40~44 DEG C of temperature, fermentation time 1~2 day, pH value drops to less than 3, terminates fermentation；
2) the yellow seriflux solution yellow seriflux after fermenting obtains clear filtrate by the strainer filtering of 150~200 mesh.Also may be used
Supernatant is obtained using the method clarified naturally；
3) by the yellow seriflux filtrate after fermentation by polyamines base weak-base ion exchange resin (703#), technique is：1. tree
Fat amount and the ratio 1 for crossing post liquid measure:7-7.5；2. flow velocity：1 gram of resin per minute crosses 0.5~1mL yellow seriflux filtrates, and exchange capacity is
1:6~8；3. eluent：Hydrochloric acid 1:8 dilutions, dosage is 2 times of amount of resin, soaks 10~20 minutes, and 6~8 times of amount of resin are gone
Ionized water is rinsed；4. eluent is neutralized into pH6.5 precipitations with milk of lime, Phytin is filtered into, thick Phytin (wet) yield is：2~
3g/L, filtrate uses available for later stage neutralizer；
4) by culture medium based on post liquid, by the proportioning after following optimization：Cross post liquid thinner ratio 1:4, sucrose
33.2g/L, CaCl23g/L, KH2PO41.2g/L, MgSO40.5g/L, ethanol 16.2ml/L.Add Acetobacter
Xylinus DS398 (acetobacter xylinum, Shaanxi Tech Univ's food and Biological Engineering College's fermented food practice training centre offer), it is quiet
Put ferment at constant temperature and BC (bacteria cellulose) film is taken out after 6~10 days, deionized water rinsing surface is soaked in concentration for 1%NaOH
In solution, 2h is boiled, the removal of impurity (thalline and raffinate) is gone, translucent, the deionized water immersion 30min until film is creamy white,
Repeat 4~5 times, until mycoderm pH is neutrality；
Infrared test is carried out to the BC that fermenting and producing is distinguished with cornstarch yellow seriflux and coconut juice, sample A as shown in Figure 2 exists
3600~3250cm-1Place has than larger absorption region, and O-H stretching vibration absworption peak is in 3347.16cm-1, half-peak breadth reaches
560cm-1, show to contain a large amount of hydrogen bond associations in molecule, thereby increases and it is possible to which sample includes a small amount of crystallization water, 1428.38cm-1The suction at place
Receive peak and represent O-H flexural vibrations peaks；2899.07cm-1The absworption peak at place is produced by C-H stretching vibrations, 1366.97cm-1
The absorption band at place produces for the flexural vibrations of c h bond；1648.35cm-1The absworption peak at place is the hemiacetal held by cellulose 4 '
Base causes；1161.88cm-1For C-O-C characteristic peaks；In 1018.16~1102.20cm-1Locate as flexible the shaking of cellulose C-O keys
Dynamic absworption peak, 1062.54cm-1Caused by constituting cellulose unit glucose C6 primary alconol stretching vibrations, 1102.20cm-1With
1018.16cm-1It is probably to be caused by secondary alcohol stretching vibration, the reason for secondary alcohol peak is deviated to the right is probably hydrogen bond work between C1 and C3
With；900cm-1It is the characteristic peak of glycosidic bond at absworption peak.Above cellulose character functional group substantially with coconut juice fermenting and producing sample B
(NATA) it coincide substantially, it is the higher cellulose of purity to show sample A.
Fig. 3 is the microscopic appearance photo of bacteria cellulose；Wherein, (a) is the thin of cornstarch yellow wastewater fermenting and producing
Fungin；(b) it is the bacteria cellulose of coconut juice fermenting and producing；As can be seen that (a) is suitable with the filament thickness of (b), and it is aobvious
Show that microfibre congestion is wound, network structure is fine and close.
From Fig. 2 and Fig. 3, the mycoderm that the culture medium of optimization is produced is bacterial cellulose product, trade name NATA, production
Product are as shown in Figure 4.Compared with former corn gluten water, the fermentation medium after optimization makes 1.59 times of BC output increaseds, and yield is reachable
869.2g/L.Ferment, remove after BC films by BC per L zymotic fluids, fermentation raffinate volume is 40~50mL, available for crude protein
4g/L extraction and the extraction of lactic acid；
5) fermentation raffinate adds quick lime adjustment pH value 8~9, and precipitating proteins are filtrated to get crude protein；
6) method one：Step 5) obtained filtrate adds quick lime and adjusts pH value to 10~11, staticly settle and obtain thick breast
Sour calcium, reclaims filtrate；Method two：Step 5) obtained filtrate is by anion exchange resin, and hot water elution obtains lactic acid solution,
Reclaimed post liquid；
7) step 5) obtained filtrate volume can be used for step 3 for 30~40mL) precipitation Phytin uses.
Embodiment 1
A kind of method of cornstarch yellow wastewater processing, comprises the following steps：
1) cornstarch yellow wastewater is placed 10~15 days under anaerobic and carries out spontaneous fermentation, fermentation process to pH
Then waste water after fermentation process filtered to less than 3, obtain clear filtrate by value with the filter screen of 150~200 mesh；
2) using polyamines base weak-base ion exchange resin dress post, clear filtrate is crossed into post processing, post liquid was collected；Its
In, the packed column volume ratio of polyamines base weak-base ion exchange resin and clear filtrate is 1：7；Flow velocity：Every gram of many amido per minute
Weak-base ion-exchange resin crosses 0.5mL clear filtrate, and exchange capacity is 1：6；Then, hydrochloric acid 1:8 dilutions, dosage is 2
Times amount of resin, soaks 10~20 minutes, the deionized water rinsing of 6~8 times of amount of resin；Eluent is neutralized to pH value with milk of lime
For 6.5, after staticly settling, filtering is precipitated as Phytin.
3) by culture medium based on post liquid, acetobacter xylinum is added into basal medium, is stood, ferment at constant temperature 6~
After 10 days, fermentation raffinate is collected, and takes out bacteria cellulose film, is by bacteria cellulose film deionized water rinsing surface, elder generation
Be soaked in the NaOH solution that concentration is 1%, boil, remove thalline and raffinate, until bacteria cellulose film be creamy white it is semi-transparent
Bright shape, is then soaked with deionized water cyclic washing, until the pH value of bacteria cellulose film is neutrality；
4) to step 3) fermentation raffinate in add quick lime, regulation pH value to 8~9, precipitating proteins, filtering is obtained
Crude protein, and collect filtrate；
5) middle addition quick lime is added to filtrate, regulation pH value is staticly settled to 10~11, and crude lactic acid calcium is made；Or, will
Filtrate crosses anion exchange resin, and lactic acid solution is made in hot water elution.
Embodiment 2
Embodiment 1
A kind of method of cornstarch yellow wastewater processing, comprises the following steps：
1) cornstarch yellow wastewater is accessed into lactic acid bacteria (lactobacillus bulgaricus or thermophilus under anaerobic
Bacterium), temperature is normal temperature, and fermentation time is 3~5 days, fermentation process to pH value to less than 3, then by the waste water after fermentation process
Filtered with the filter screen of 150~200 mesh, obtain clear filtrate；
2) using polyamines base weak-base ion exchange resin dress post, clear filtrate is crossed into post processing, post liquid was collected；Its
In, the packed column volume ratio of polyamines base weak-base ion exchange resin and clear filtrate is 1：7.5；Flow velocity：Every gram of polyamines per minute
Base weak-base ion exchange resin crosses 0.8mL clear filtrate, and exchange capacity is 1：7；Then, hydrochloric acid 1:8 dilutions, dosage is
2 times of amount of resin, soak 10~20 minutes, the deionized water rinsing of 6~8 times of amount of resin；Eluent is neutralized to pH with milk of lime
It is worth for 6.5, after staticly settling, filtering is precipitated as Phytin.
3) by culture medium based on post liquid, acetobacter xylinum is added into basal medium, is stood, ferment at constant temperature 6~
After 10 days, fermentation raffinate is collected, and takes out bacteria cellulose film, is by bacteria cellulose film deionized water rinsing surface, elder generation
Be soaked in the NaOH solution that concentration is 1%, boil, remove thalline and raffinate, until bacteria cellulose film be creamy white it is semi-transparent
Bright shape, is then soaked with deionized water cyclic washing, until the pH value of bacteria cellulose film is neutrality；
4) to step 3) fermentation raffinate in add quick lime, regulation pH value to 8~9, precipitating proteins, filtering is obtained
Crude protein, and collect filtrate；
5) middle addition quick lime is added to filtrate, regulation pH value is staticly settled to 10~11, and crude lactic acid calcium is made；Or, will
Filtrate crosses anion exchange resin, and lactic acid solution is made in hot water elution.
Embodiment 3
A kind of method of cornstarch yellow wastewater processing, comprises the following steps：
1) cornstarch yellow wastewater is accessed into lactic acid bacteria (lactobacillus bulgaricus or thermophilus under anaerobic
Bacterium), temperature is 40~44 DEG C, and fermentation time is 1~2 day, fermentation process to pH value to less than 3, then by after fermentation process
Waste water is filtered with the filter screen of 150~200 mesh, obtains clear filtrate；
2) using polyamines base weak-base ion exchange resin dress post, clear filtrate is crossed into post processing, post liquid was collected；Its
In, the packed column volume ratio of polyamines base weak-base ion exchange resin and clear filtrate is 1：7.5；Flow velocity：Every gram of polyamines per minute
Base weak-base ion exchange resin crosses 0.8mL clear filtrate, and exchange capacity is 1：7；Then, hydrochloric acid 1:8 dilutions, dosage is
2 times of amount of resin, soak 10~20 minutes, the deionized water rinsing of 6~8 times of amount of resin；Eluent is neutralized to pH with milk of lime
It is worth for 6.5, after staticly settling, filtering is precipitated as Phytin.
3) by culture medium based on post liquid, acetobacter xylinum is added into basal medium, is stood, ferment at constant temperature 6~
After 10 days, fermentation raffinate is collected, and takes out bacteria cellulose film, is by bacteria cellulose film deionized water rinsing surface, elder generation
Be soaked in the NaOH solution that concentration is 1%, boil, remove thalline and raffinate, until bacteria cellulose film be creamy white it is semi-transparent
Bright shape, is then soaked with deionized water cyclic washing, until the pH value of bacteria cellulose film is neutrality；
4) to step 3) fermentation raffinate in add quick lime, regulation pH value to 8~9, precipitating proteins, filtering is obtained
Crude protein, and collect filtrate；
5) middle addition quick lime is added to filtrate, regulation pH value is staticly settled to 10~11, and crude lactic acid calcium is made；Or, will
Filtrate crosses anion exchange resin, and lactic acid solution is made in hot water elution.
In summary, a kind of method for recycling treatment corn starch wastewater that the present invention is provided, can not only be reclaimed useless
Water nutrition material, reaches the purpose of processing sewage, and can produce high value added product, environmental protection and economic benefit phase
Benefit evident.
Claims (9)
1. a kind of method of cornstarch yellow wastewater processing, it is characterised in that comprise the following steps：
1) by cornstarch yellow wastewater fermentation process to pH value to less than 3, then by the waste water filtering after fermentation process, obtain
Clear filtrate；
2) using polyamines base weak-base ion exchange resin dress post, clear filtrate is crossed into post processing, post liquid was collected；
3) by culture medium based on post liquid, acetobacter xylinum is added into basal medium, is stood, ferment at constant temperature 6~10 days
Afterwards, fermentation raffinate is collected, and takes out bacteria cellulose film, by bacteria cellulose Membrane cleaning, removal of impurities, immersion, until bacterial fibers
The pH value of plain film is neutrality；
4) to step 3) fermentation raffinate in add quick lime, regulation pH value to 8~9, precipitating proteins, filtering obtains thick egg
In vain, and filtrate is collected；
5) middle addition quick lime is added to filtrate, regulation pH value is staticly settled to 10~11, and crude lactic acid calcium is made；Or, by filtrate
Anion exchange resin is crossed, lactic acid solution is made in hot water elution.
2. the method for cornstarch yellow wastewater processing according to claim 1, it is characterised in that step 1) in, by jade
Rice starch yellow wastewater fermentation process is to pH value to less than 3, and concrete operations are method one, method two or method three：
Method one：Cornstarch yellow wastewater is placed 10~15 days under anaerobic and carries out spontaneous fermentation, temperature is normal temperature；
Method two：Cornstarch yellow wastewater is accessed into lactic acid bacteria under anaerobic, temperature is normal temperature, and fermentation time is 3~5
My god；
Method three：Cornstarch yellow wastewater is accessed into lactic acid bacteria under anaerobic, temperature is 40~44 DEG C, and fermentation time is
1~2 day.
3. the method for cornstarch yellow wastewater processing according to claim 2, it is characterised in that the lactic acid bacteria is guarantor
Plus Leah lactobacillus or streptococcus thermophilus.
4. the method for cornstarch yellow wastewater processing according to claim 1, it is characterised in that step 1) filtering
It is to be filtered the waste water after fermentation process with the filter screen of 150~200 mesh.
5. the method for cornstarch yellow wastewater according to claim 1 processing, it is characterised in that step 2) in, with many
Amido weak-base ion-exchange resin fills post, and the actual conditions that post processing is crossed to clear filtrate is：
1., applied sample amount：The packed column volume ratio of polyamines base weak-base ion exchange resin and clear filtrate is 1：(7~7.5)；
2., flow velocity：Every gram of polyamines base weak-base ion exchange resin per minute crosses 0.5~1mL clear filtrate, and exchange capacity is
1：(6~8)；
3., eluent：Hydrochloric acid 1:8 dilutions, dosage is 2 times of amount of resin, soaks 10~20 minutes, 6~8 times of amount of resin go from
Sub- water is rinsed；
4. it is 6.5 that eluent, is neutralized into pH value with milk of lime, after staticly settling, filtering, and precipitation is Phytin.
6. the method for cornstarch yellow wastewater processing according to claim 5, it is characterised in that step 4) obtained filter
Liquid is used to precipitate Phytin.
7. the method for cornstarch yellow wastewater processing according to claim 1, it is characterised in that contain in basal medium
Have：Sucrose 33.2g/L, CaCl23g/L, KH2PO41.2g/L, MgSO40.5g/L, ethanol 16.2ml/L.
8. the method for cornstarch yellow wastewater processing according to claim 1, it is characterised in that add in basal medium
The amount for entering acetobacter xylinum is 1%.
9. the method for cornstarch yellow wastewater according to claim 1 processing, it is characterised in that step 3) in, be by
Bacteria cellulose film uses deionized water rinsing surface, be first soaked in concentration be 1% NaOH solution in, boil, remove thalline and
Raffinate, translucent, the then use deionized water cyclic washing immersion, until bacterial fibers until bacteria cellulose film is creamy white
The pH value of plain film is neutrality.
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| CN108395562A (en) * | 2018-05-30 | 2018-08-14 | 陕西科技大学 | A kind of preparation method of high-crystallinity bacteria cellulose powder |
| CN108395563A (en) * | 2018-05-30 | 2018-08-14 | 陕西科技大学 | A kind of preparation method of bacteria cellulose powder |
| CN113135954A (en) * | 2021-04-24 | 2021-07-20 | 诸城市浩天药业有限公司 | Process method for preparing calcium phytate and calcium lactate by using corn soaking water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395562A (en) * | 2018-05-30 | 2018-08-14 | 陕西科技大学 | A kind of preparation method of high-crystallinity bacteria cellulose powder |
| CN108395563A (en) * | 2018-05-30 | 2018-08-14 | 陕西科技大学 | A kind of preparation method of bacteria cellulose powder |
| CN108395562B (en) * | 2018-05-30 | 2020-11-20 | 陕西科技大学 | Preparation method of high-crystallinity bacterial cellulose powder |
| CN108395563B (en) * | 2018-05-30 | 2021-03-09 | 陕西科技大学 | Preparation method of bacterial cellulose powder |
| CN113135954A (en) * | 2021-04-24 | 2021-07-20 | 诸城市浩天药业有限公司 | Process method for preparing calcium phytate and calcium lactate by using corn soaking water |
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