CN107348322A - A kind of vomitoxin poison-removing method during corn deep processing - Google Patents
A kind of vomitoxin poison-removing method during corn deep processing Download PDFInfo
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Abstract
The present invention relates to the vomitoxin poison-removing method during a kind of corn deep processing, belong to corn deep processing field.Raw material corn enters each corn soaking tank after testing, after purification, and squeezing into the recycled process water to corn soaking tank carries out pre-soaking, and 48~52 DEG C of temperature, the mass ratio of process water and raw material corn is 0.9：1, it is 48~52 DEG C to keep steeping tank temperature using circulating-heating during immersion, after process water pre-soaking, into sulfurous acid soak process.It is an advantage of the invention that：The vomitoxin content of maize raw material declines to a great extent, it is final obtain whitewashing feed product vomitoxin detoxification efficiency it is notable, virus elimination rate is up to 50%~70%；Do not change original technological process of production, less investment, it is quick, facilitate feasible, greatly improve economic benefit.Be advantageous in corn wet milling deep processing industry popularization and application.
Description
Technical field
The invention belongs to corn deep processing technology field, refers in particular to maize raw material in a kind of corn deep processing production process
The poison-removing method of vomitoxin.
Background technology
The existing production method of corn (starch) deep processing is mainly：Corn uses wet-milling processing technology, is the side with physics
Method, each main component of corn is separated by iblet by the technique such as sulfurous acid soak, broken, separation, dry, obtains phase
Answer product.Five kinds of Main Components can be obtained by this process, that is, whitewash maize peel, corn protein powder, corn germ cake,
Crude maize oil and starch.
Mycotoxin is inevitably present in maize raw material, along with global weather is unusual in recent years, a large amount of corns
Raw material faces the problem of mycotoxin contamination and is on the rise, and it is exceeded to directly result in corn deep processing various products toxin.Wherein vomit
Tell toxin, aflatoxin and zeranol influences maximum to corn deep processing industry product.It is mesh that especially vomitoxin is exceeded
The subject matter of preceding product：In cornstarch processing technology link, because the water soluble characteristic of vomitoxin is in corn sulfurous acid
It is dissolved in immersion process in corn steep liquor, corn byproducts maize peel needs to whitewash, to improve its protein content, to cause with the plumule dregs of rice
Vomitoxin content overproof is serious in whitewashing maize peel, the plumule dregs of rice.
Because vomitoxin is distributed in the plumule and respiration channel of the crops such as iblet, skewness, maize
Portion almost accounts for 1/3rd of wholegrain volume, accounts for 10%-the 12% of wholegrain weight, and because its respiratory intensity is big, hygroscopicity is strong, band
Bacterium amount is big, easily becomes sour, and for toxin total amount existing for epidermis and plumule portion up to more than 80%, endosperm content of toxins accounts for 20%.It is beautiful
The existing wet-milling production and processing technology of rice deep processing industry, does not carry out revolutionary process modification for toxin, just for
High content of toxins byproduct takes dilution method to carry out simple mixture, provisional solution quality problems, causes toxin to be dispersed throughout whole
In individual production and processing system pipeline, do not solve problem from root, so as to cause to be too dependent on maize raw material quality
Passive situation.The height and vomitoxin content of an index that mildews for data analysis shows maize raw material are largely detected through factory
Not inevitable direct correlation, therefore factory can not be vomitted by pressing acquisition criteria when purchasing maize raw material to maize raw material
Content of toxins is effectively controlled, in existing cornstarch wet-milling process also without effective detoxification process measure with
Method, form a kind of very urgent situation, the situation is tense for endotoxin contamination.
Vomitoxin (DON) also known as deoxynivalenol, the Typical Representative of toxin produced by belonging to sickle-like bacteria, because
Vomiting occurs after animal poisoning and gains the name.Livestock and poultry feeding can be caused to raise after the corn of vomitoxin pollution or its processing feed
Fowl immunity function reduces, is slow-growing, production performance reduces even death, can also enter human foods by products such as meat, eggs and milks
Chain, endanger human health.It is 3ppm that most of feed producers, which purchase corn byproducts vomitoxin limit standard, at present.
At present, the poison-removing method of vomitoxin mainly includes chemistry, biology and physics detoxicity method in feed.Traditional chemical side
Although method can partly remove mycotoxin, there is the shortcomings that inevitable：It is to utilize toxin that chemical method, which eliminates mycotoxin,
Chemical characteristic, under strong acid and strong base or oxidant effect, it is allowed to be converted into nontoxic material.Although chemical method has certain go
Toxic effect fruit, but generally there is corrosivity, and this kind of method has operating difficulties in actual applications, to the color of feed with
And nutritional ingredient has different degrees of destruction and harmful effect；It is heat-treated the nutrition of food or feed of the high temperature of needs
Value, and the toxicity of vomitoxin thermal decomposition product is still unknown；The addition of chemical reagent can introduce uncertain hazard factor；
Large batch of feed and raw material operating difficulties etc. in aforementioned manners.
Biological detoxication method is mainly acted on using caused enzyme in certain micro-organisms and vegetable metabolic process with vomitoxin,
It is destroyed the toxophore included in latter configuration, so as to generate non-toxic degradation products.Biological detoxication method has effect bar
Part is gentle, it is not necessary to which, using harmful chemical agents, sensory properties, palatability on raw material etc. influence minimum, increase raw material nutrition
Value, the advantages that will not producing accumulative environmental pollution, be one of focus direction studied both at home and abroad, but detoxification efficiency needs
Improve, and microorganism also lacks safety evaluation, and existing research only exists in laboratory stage, from practical application also have one section away from
From.It is that its specificity is not high to a problem of mycotoxin detoxification using bacterial strain, can not be to most concerned about, most important toxin
Rapid detoxification, and bacterial strain screening cost is too high in R＆D process, the detoxification time is longer during application, to temperature and pH sensitiveness etc.
Defect is the huge challenge to factory technics and detoxification cost.
The vomitoxin adsorbent that added in feed in physical method is the feed mould poison being most widely used at present
Plain poison-removing method.Mold toxin sorbent can be divided into activated carbon class, mannanses, Aluminosilicates according to the difference of its component
Deng.Clay and activated carbon etc. are non-specific adsorbents, while absorbing mycotoxin, are also adsorbed micro in abundance of food
Nutriment, reduce the nutritional quality and palatability of feed and raw material.Adsorbent toxin, in situation about can not be decomposed
Under can cause to pollute again；《A kind of efficiently amalgamation mycotoxins in feed adsorbent and its application method》(number of patent application：
201310040205.8) using composite nano modified ultrapure montmorillonite as primary raw material, addition yeast cell extract, PVPP crosslinkings
Detoxicated dose of compound fungus made of PVP, complex immunity polysaccharide, experiment in vitro are shown to aspergillus flavus poison
Plain B1, vomitoxin, the adsorption effect of zearalenone are respectively 100%, 68-70%, 91-93%, and its addition manner is
It is directly added into feed and mixes, its shortcoming is that the mixing uniformity of adsorbent and feed is difficult in heavy industrialization application process
Control, due to the complexity of feed ingredient, its adsorption effect does not reach experiment in vitro ideal effect, and after adsorbent absorbing toxin
Still it is stored in feed not degraded and removes toxin, stability and security in other complex environments that may be present has
It is uncertain.
Maize raw material vomitoxin poison-removing method is one of problem of the outer corn deep processing industry tackling key problem of Current Domestic, beautiful
Successfully industry will be had great significance for the research and development of rice deep processing industry detoxification technology and profound influence.
The content of the invention
The present invention provides the vomitoxin poison-removing method during a kind of corn deep processing, to solve current corn deep processing
Industry because maize raw material vomitoxin is seriously polluted, and existing production method can not effectively detoxification cause corn byproducts to vomit
The underproof problem of toxin.
The present invention adopts the technical scheme that：Comprise the following steps：
Raw material corn enters each corn soaking tank after testing, after purification, squeezes into the recycled process water to corn soaking tank and enters
Row pre-soaking, the process water is in zein enrichment process, overflow goes out after last one of seitan concentrates centrifuge
Process water, 48~52 DEG C of temperature, the mass ratio of process water and raw material corn is 0.9：1, keep process water liquid level in tank not have
Corn, and whether corn all submerges in regular check tank；
Soak time：Damp grain is soaked 1 hour, and solid food soaks 2 hours, and steeping tank temperature is kept using circulating-heating during immersion
Spend for 48~52 DEG C；The tank corn of process water circulation immersion two：After a tank corn pre-soaking, by process water in the tank with following
Ring pump is squeezed into next tank, and after next tank corn carries out process water pre-soaking, the process water is emitted into waste water plate-frame filtering
Process, after solid content in big plate-frame filtering waste liquid, it is emitted into Sewage Disposal；
The raw material corn is after process water pre-soaking, into sulfurous acid soak process.
The present invention is through Mycotoxin identification, cleaning procedure during original corn (starch) deep process in raw material corn
After going impurity removal procedure using the method for screening, using after rotary screen and tandem magnet preliminary clearning corn again desanding, desilt, except stone
Jigging machine Hydraulic transportation carries out corn soaking detoxification, due to vomitoxin to pre-soaking method of the present invention after steeping tank, is implemented afterwards
Belong to trichothecene, there is chemical property soluble in water and be distributed mainly on the plumule of corn and its breathe logical
Among road, according to above-mentioned characteristic, the present invention utilizes the dilute seitan liquid storage of overflow of main centrifuge in existing zein enrichment process
Rotated filter filtering, then the production technology water that overflow goes out after seitan concentrates centrifuge, corn soaking is squeezed into through circulating pump
In tank, in suitable temperature by the raw material corn pre-soaking regular hour, vomitoxin in corn is mainly dissolved in water, soak
Bubble process water can be after big plate-frame filtering falls solid content, to be discharged into sewage disposal after the tank corn of circulation immersion two.
The positive effect of the present invention：
(1) during the present invention is cornstarch production technique for deep processing, maize raw material is carried out using pre-soaking method
After vomitoxin detoxification, the vomitoxin content of maize raw material declines to a great extent, the final vomitoxin for obtaining whitewashing feed product
Detoxification efficiency is notable, and virus elimination rate is up to 50%~70%.
The present invention is to make a large amount of corn rinsing detoxification process experiments, finished product feedstuff addition adsorbent progress physical absorption
On the basis of its detoxification efficiency is inapparent after experiment, experimental result is constantly summarized, constantly breaks through thinking, according to vomitoxin
Physicochemical property and its characteristic distributions in corn kernel：Plumule accounts for 10%-the 12% of wholegrain weight, because its respiratory intensity is big,
Hygroscopicity is strong, and content of molds is big, easily becomes sour, and up to more than 80%, endosperm toxin contains toxin total amount existing for epidermis and plumule portion
Amount accounts for 20%, it is understood that only the toxin inside corn respiration channel is dissolved in process water by soaking, it is a large amount of by carrying out
Corn soaking experiment, with reference to traditional starch production technology, grope most suitable steep parameters and determine that pre-soaking production detoxification process obtains
Obtained the success of detoxification experiment.
(2) present invention only need to carry out simple process transformation on original wet method corn deep processing production line, that is, soak
Protein concentration overflow process water feed-line and water-delivery pump are connected on tank, three are added by the daily required increased wastewater flow rate of processing
Big plate filter, does not change original technological process of production, less investment, it is quick, facilitate feasible, be advantageous to wet in corn
Grind deep processing industry popularization and application.
(3) Improving The Quality of Products：
A. the vomitoxin of maize raw material can be effectively removed, ensures the qualification rate of feed product；
B. the dust, soil, reduction cornstarch ash content of corn can effectively be removed；
C. reduce bacterial content, lift the whiteness of starch；
D. the color and luster of corn steep liquor can be improved, and then ensure the bright yellow color of feed.
(4) economic benefit is greatly improved：The Starch Production factory that corn treatment scale is 600,000 tons per year calculates economical point
Analysis, using the present invention, calculated, by water and corn 0.9 by daily 2000 tons of corns of processing：1 dosage, soaking technology water can utilize 2
Secondary calculating, then although more 900~1000 tons of process waters of consumption daily, these water are process recycled water category waste water reuse,
Increase 5 yuan of an addition sheet equivalent to whitewashing maize peel per ton, the high dregs of rice, but because whitewashing maize peel and high dregs of rice vomitoxin content will be big
Width declines, high-quality to sell goods at a high figure, then and production marketing price per ton will increase by 50 yuan, and enterprise can make a profit 6,300,000 yuan for 1 year,
Economic benefit is considerable.
Brief description of the drawings
Fig. 1 is the flow chart that the present invention is applied in corn (starch) deep processing.
Embodiment
Embodiment 1
Comprise the following steps：
Raw material corn enters each corn soaking tank after testing, after purification, squeezes into the recycled process water to corn soaking tank and enters
Row pre-soaking, the process water is in zein enrichment process, overflow goes out after last one of seitan concentrates centrifuge
Process water, 48 DEG C of temperature, the mass ratio of process water and raw material corn is 0.9：1, keep process water liquid level in tank not have corn,
And whether corn all submerges in regular check tank；
Soak time：Damp grain is soaked 1 hour, and solid food soaks 2 hours, and steeping tank temperature is kept using circulating-heating during immersion
Spend for 48 DEG C；The tank corn of process water circulation immersion two：After a tank corn pre-soaking, by process water circulating pump in the tank
Squeeze into next tank, after next tank corn carries out process water pre-soaking, the process water be emitted into waste water plate-frame filtering process,
After solid content in big plate-frame filtering waste liquid, Sewage Disposal is emitted into；
The raw material corn is after process water pre-soaking, into sulfurous acid soak process.
Embodiment 2
Comprise the following steps：
Raw material corn enters each corn soaking tank after testing, after purification, squeezes into the recycled process water to corn soaking tank and enters
Row pre-soaking, the process water is in zein enrichment process, overflow goes out after last one of seitan concentrates centrifuge
Process water, temperature 50 C, the mass ratio of process water and raw material corn is 0.9：1, keep process water liquid level in tank not have corn,
And whether corn all submerges in regular check tank；
Soak time：Damp grain is soaked 1 hour, and solid food soaks 2 hours, and steeping tank temperature is kept using circulating-heating during immersion
Spend for 50 DEG C；The tank corn of process water circulation immersion two：After a tank corn pre-soaking, by process water circulating pump in the tank
Squeeze into next tank, after next tank corn carries out process water pre-soaking, the process water be emitted into waste water plate-frame filtering process,
After solid content in big plate-frame filtering waste liquid, Sewage Disposal is emitted into；
The raw material corn is after process water pre-soaking, into sulfurous acid soak process.
Embodiment 3
Comprise the following steps：
Raw material corn enters each corn soaking tank after testing, after purification, squeezes into the recycled process water to corn soaking tank and enters
Row pre-soaking, the process water is in zein enrichment process, overflow goes out after last one of seitan concentrates centrifuge
Process water, 52 DEG C of temperature, the mass ratio of process water and raw material corn is 0.9：1, keep process water liquid level in tank not have corn,
And whether corn all submerges in regular check tank；
Soak time：Damp grain is soaked 1 hour, and solid food soaks 2 hours, and steeping tank temperature is kept using circulating-heating during immersion
Spend for 52 DEG C；The tank corn of process water circulation immersion two：After a tank corn pre-soaking, by process water circulating pump in the tank
Squeeze into next tank, after next tank corn carries out process water pre-soaking, the process water be emitted into waste water plate-frame filtering process,
After solid content in big plate-frame filtering waste liquid, Sewage Disposal is emitted into；
The raw material corn is after process water pre-soaking, into sulfurous acid soak process.
Following Binding experiment is tried to further illustrate the effect of the present invention.
Experimental example 1 is using cornstarch deep working method of the invention
Referring to Fig. 1, comprise the following steps：
1st, raw material corn selects, using Starch Production corn or stock's corn；
2nd, Mycotoxin identification, the sampling of raw material corn carries out moldy kernel content detection or vomitoxin content detection, wherein vomitting
Content of toxins detection is told to be detected using enzyme linked immunosorbent assay or high performance liquid chromatography.Enzyme linked immunosorbent assay, inspection
Survey method is：The measure of deoxynivalenol in GB/T 5009.111-2003 Grain and its products；High-efficient liquid phase color
Spectrometry detects, and detection method is：The measure immune affinity column of deoxynivalenol is net in GB/T 30956-2014 feeds
Change-high performance liquid chromatography；
3rd, raw material corn purifies, and corn purification divides preliminary clearning and purified again, and it is defeated through scrapper conveyor, bucket elevator that preliminary clearning refers to corn
Rotary screen is sent to, the removal of impurity is gone using the method for screening, using rotary screen and tandem magnet, purifies corn；Purify again be will be pre-
The corn of purification purifies again, again the sandstone and dust and impurity except de-iron, smaller than corn particle size, to reach complete
The purpose of purification；
The raw material corn sent through drag conveyor (L2101), into corn elevating hopper, then claim by corn weighing balance
Enter corn feeding bucket after weight, little particle sandstone etc. are removed by desanding material feeding jar, afterwards into gravity curved screen, by sieving,
By silt it is further in separate, be sent into jigging machine afterwards and remove stone, the stone in corn is removed, it is logical except the corn after stone
Corn feeding pump is crossed, is fed using Hydraulic transportation to steeping tank；
4th, pre-soaking detoxification treatment
12 corn soaking tanks are taken, squeezing into the recycled process water to corn soaking tank carries out pre-soaking, and the process water is
In step 16 in zein enrichment process, the process water that overflow goes out after last one of seitan concentrates centrifuge, temperature
50 DEG C, the mass ratio of process water and raw material corn is 0.9：1, keep process water liquid level in tank not have corn, and regular check tank
Whether interior corn all submerges；
Soak time：Damp grain is soaked 1 hour, and solid food soaks 2 hours, and steeping tank temperature is kept using circulating-heating during immersion
Spend for 50 DEG C；The tank corn of process water circulation immersion two：After No. 1 tank corn pre-soaking, process water in No. 1 tank is circulated
Pump is squeezed into No. 2 tanks, and squeezing into sulfurous acid to No. 1 tank carries out step 6 sulfurous acid soak process, and process water is carried out in No. 2 tank corns
After pre-soaking, the process water is emitted into waste water plate-frame filtering process, after solid content in big plate-frame filtering waste liquid, is emitted into
Sewage Disposal, squeeze into sulfurous acid to No. 2 tanks and carry out step 6 sulfurous acid soak process, remaining each tank is by that analogy；
5th, sulfurous acid processed, sulfurous acid preparation section are mainly made up of sulfur dioxide absorbing tower, air-introduced machine and combustion furnace, purpose
It is to provide certain density sodium hydrogensulfite for corn soaking system；
Acid manufacturing processes：Dry sulphur is added in combustion furnace and burnt, air-introduced machine makes caused sulfur dioxide gas from bottom to top
By the absorption tower equipped with multiple shower nozzles, and with pump conveying process water counter current contacting, absorb into sulfurous acid and enter pans,
Unabsorbed sulfur dioxide is absorbed with diluted sodium hydroxide solution, and the sodium hydrogensulfite soak made enters pans, by
Sulfurous acid basin is pumped into, because the corn through pre-soaking in immersion process absorbs a certain amount of water 10% (damp grain), 20% (dry
Grain), the immersion original concentration of acid solution sulfurous acid can suitably lift 10% (damp grain), 20% (solid food)；
6th, sulfurous acid soak, sulfurous acid immersion process is primarily to soften corn particle, so as to relatively easily from corn
Plumule, fiber and albumen are isolated in particle, empirical evidence, is soaked using in soak containing the adverse current of lactic acid bacteria and sulfurous acid
Process, it can reach preferably immersion effect；
Because the species of maize raw material, quality are different, the control parameter of immersion process is also different, and ordinary circumstance is to protect
Hold corn particle with concentration be 0.07-0.15%, the sulfurous acid soaking water that temperature is 50 ± 2 DEG C contact, soaked, during immersion
Between >=30 hours；
7th, filter, light soak of the corn after sulfurous acid soak removes solid impurity by filter；
8th, light soak evaporation, in order to reclaim the valuable components in soak, dilute soak for being discharged from steeping tank
Deliver to evaporization process to be concentrated, into dilute soak 4.0-9.0% containing dry of evaporator, be concentrated into 35-45%, concentrate
Corn steep liquor, which is mainly added in fiber, afterwards is made corn gluten feed, and remainder, which adds, produces Quality Protein Maize embryo in the plumule dregs of rice
The bud dregs of rice, evaporization process imitate evaporator+MVR evaporators using used heat；
9th, broken and germ separation, it is that waterpower is defeated to crushing system feed course of conveying after corn sky after immersion is starched
Send, corn is pumped into wet corn basin by conveying after the leaching in steeping tank, by extracting embryo to the broken of corn after leaching
Bud, it is divided to first step corase grind and second step to refine two steps and carry out, each step is all along with " gravity " (or " buoyancy) " formula separates, this
The broken corn of kind method, the plumule of damage is few, can improve the separating effect of plumule suspension, the often step of technical process is all protected
Hold low fat content；
10th, germ washing, dehydration, germ washing process are countercurrent washing process, and plumule is fed in the second level from the first order
Leave system.And wash water feeds from the second level and leaves system in the first order, by this process, starch is washed out and together with wash water
Into basin is ground off, the process water of technique water pot is used as wash water, wash water and material cross flow one in system, forms adverse current, work
Skill water adds system by the second level, and through entering plumule wash water tank under sieving, the first order is squeezed into as wash water by germ washing pump；
Into the plumule of dewatering squeezer aqueous about 85%；The aqueous 50-55% of plumule after dehydration, plumule is sent after dehydration
To drying system；
11st, plumule is dried, and the plumule after dewatering squeezer is dehydrated, rotating tube bank drying machine is transported to through conveying worm
In be dried, plumule is through Geldart-D particle to pre- squeezing process after drying；
12nd, refining, fiber separation, the starch in corn, into before fine grinding, a part is still the state of granule materials,
After grinding, substantial amounts of starch is extracted from fiber and protein net, in order to which starch is withdrawn to greatest extent, it is necessary to will
Starch in fiber thoroughly washes out, and the fines content in starch should reduce as much as possible；
Material after grinding flows into tank by gravity, is pumped up into fiber wash system, and fiber wash is countercurrent washing process,
Starch and albumen are washed out from fiber；
13rd, fiber wash, fiber enter system from the bent sieve of the first order, and into the second level and later each as oversize
Level, at afterbody song sieve, oversize fiber leaves system in the presence of pump；
Wash water is added in the feeder compartment of the bent sieve of afterbody, and (only this one-level) is mixed with the screenings of song sieve, is formed
Suspension containing starch and the bent sieve of afterbody that system is left as filtrate, the feeder compartment of the bent sieve of previous stage is overflowed to, most
The filtrate as the bent sieve of the first order leaves system eventually, and the filtrate with pressure curved sieve before three mills equally enters coarse starch milk tank；
14th, fiber is dehydrated, whitewashes, dried：Extruder dehydration after fiber it is aqueous≤65%, add concentration after soak
After (corn steep liquor), batch mixing conveying worm is delivered to through conveying worm.To receive whirlwind point simultaneously at batch mixing conveying worm
From the fiber of device recovery and the fiber of circulation, it is sufficiently mixed so that the material into drying machine contains relatively low moisture；
Gluten feed is dried to aqueous 8~12% in aforementioned manners, then through Geldart-D particle to dry feed bunker, then passed through
Sledge mill enters electronic scale, by being packed after metering；
15th, starch and Protein Separation：Coarse starch milk after broken contains two kinds of materials of starch and albumen, it is necessary to by him
Separated, separation separated using Alfa Laval seperator, coarse starch milk by starch milk desanding device removing starch milk
In tiny silt, remove fiber fines etc. into revolving filter, separated afterwards into main seperator, seperator due to
The proportion of starch is more than albumen, so under seperator centrifugal action, albumen and starch separation, overflow are albumen, and underflow is shallow lake
Powder；
16th, protein concentration：The overflow (seitan containing Trace Starch) of main centrifuge flows into dilute seitan fluid reservoir, enters through pump
Revolving filter is filtered, and to prevent from bringing impurity into thickener, centrifuge is concentrated subsequently into seitan, seitan concentration centrifuge
Under the influence of centrifugal force, the seitan particle of suspension is separated from water material, and overflow is process water, and underflow is the bran discharged through nozzle
Matter, technique water circulation are used for corn pre-soaking detoxification, fiber wash, germ washing and relieving haperacidity；
17th, albumen is dehydrated, dried：Seitan enters in dense seitan basin, and subsequently into seitan flame filter press, filter cake leans on certainly
Flump in conveying scrapper conveyor, into drier.The dried forms of seitan drying machine and plumule drying machine are essentially identical, after drying
Aqueous 7-10% seitan is discharged by discharging spiral conveyor, and into rotary screen, screenings one is through wind model to packaging
Basin, finished product maize gluten feed is packaged as after electronic scale measures, another part does back powder and returns to drying machine, and oversize is through hammer
Be milled it is broken after enter drier；
18th, starch washing：The starch isolated by seperator contains some albumen, and this will influence yield and the shallow lake of albumen
The qualification rate of powder, so to be removed, starch enters ten two level head tanks, the washing point of starch after being isolated by seperator
For ten two levels, it is made up of per one-level thousands of individual cyclones, the ten two levels washing of starch is similarly countercurrent washing, and Crude starch is by first
Level is added, and fresh water is added by ten two levels, and the albumen washed out is flowed out by the overflow of the first order.Top stream and previous stage per one-level
Charging is fed to previous stage together, and ten two levels add fresh water and washed, and washing water heater is passed through before addition and is heated to
43-45 DEG C, to increase clean result, the 6th grade of ten two levels add starch dairy milk cooler and cooled down, and prevent temperature among ten two levels
The gelatinization of high starch milk is spent, ten two level overflows go to ten two level tops to flow tank, subsequently into clarifying centrifuge) isolate seitan, 12
Ten two level underflow tanks are removed in level underflow, are sent into starch dehydrating, drying process；
19th, starch dehydrating, drying：After the underflow of starch washing system enters tank, eight gravity tanks, overflow portion are fed by pump
Recycling, high-order pot bottom adjust pneumatic operated valve equipped with automatic control and are dehydrated to scraper centrifugal machine feed, and starch is through chute after dehydration
The doses of drier is fed equipped with the control of speed governing pressure feeding spiral conveyer into batch mixing spiral bottom；
Starch drier drying mode is Flash Type, and starch, in the drying process, moment (1-2 are dried using thermal current
Second) fall moisture evaporation, to prevent starch gelatinization, in drying process, the heating to air-flow is very important, because drier
The height of interior temperature can all influence the moisture of final products, so should strictly control, starch forms sediment through Geldart-D particle to dry after drying
Powder bunker, finished product cornstarch is packaged as after being measured by electronic scale；
20th, plumule is squeezed and leached in advance：The plumule come out from plumule drier enters flaker, rolls the embryo piece after embryo and enters embryo
Bud pre-squeezer is squeezed in advance, and a part of grease is squeezed out, and is sent to corn oil tank after filtering；
The pre- squeezing dregs of rice after pre- squeezing enter infuser and pass through the progress corn oil leaching of n-hexane solvent, and the corn oil of leaching passes through
Corn oil tank is sent to after filter, is reused after solvent recovery, the corn dregs of rice of leaching are sent to the corn dregs of rice and add slurry process；
21st, low dregs of rice spray corn steep liquor：The dregs of rice are sent into the dregs of rice and added in slurry tube bank drier after the next corn leaching of process is leached, with dense jade
Dried after Rice ＆ peanut milk mixing, corn germ cake feed is obtained after packaged；
22nd, starch and feed package：By production schedule requirement, size packages needed for preparation, starch packaging bag in advance needs
Standby after being sterilized between packaging bag sterilization, workshop squad leader requires adjustment electronic scale, dried starch or feeding according to the production schedule
Material pass through be packaged as after automatic packaging machine quantitative weighing finished product edible corn starch or finished product corn protein powder, whitewashing maize peel,
Corn germ cake；Sampler presses the sampling of control gauge journey before product packaging, and censorship finished product laboratory is examined；Production after packaging
Product, on request after coding product batch number and order of classes or grades at school, pouch starch product is detected by metal detector, as detection has metal fillings,
Answer individually placed and identify, such as can't check metal fillings, stacking is carried out by stacking rule；
Feed product seals personnel it is noted that observing the complete situation of sealing pin, and the product after packaging, on request coding is given birth to
After producing lot number and order of classes or grades at school, stacking is carried out by stacking rule.
The rinsing detoxification process experiment of the corn of experimental example 2
In the rinsing detoxification experiment of China Oil and Food Import and Export Corporation the biochemistry energy (Gongzhuling) company maize raw material, with certain process water by feeding
Corn carries out circulated in countercurrent and washed 15 minutes, simply removes the toxin of corn epidermis, the toxin inside corn kernel can not have
Detoxification is imitated, thus the change of corn content of toxins is small, detoxification efficiency is 0%~13%.Experimental data is shown in Table 1
Table 1：Corn rinsing detoxification process vomitoxin content (ppb) detection data
| Sequence number | Maize raw material | Corn after rinsing | Virus elimination rate % |
| 1 | 1155 | 1004 | 13.07 |
| 2 | 1784 | 1663 | 6.78 |
| 3 | 1458 | 1510 | 0.00 |
| 4 | 2219 | 2062 | 7.08 |
| 5 | 2545 | 2490 | 2.16 |
| 6 | 2560 | 2659 | 0.00 |
| 7 | 1780 | 1652 | 7.19 |
| 8 | 1645 | 1700 | 0.00 |
| 9 | 2884 | 2663 | 7.66 |
| 10 | 1936 | 2158 | 0.00 |
| 11 | 1973 | 1675 | 15.10 |
| 12 | 2466 | 2460 | 0.24 |
| 13 | 2880 | 2617 | 9.13 |
| 14 | 950 | 880 | 7.37 |
| 15 | 875 | 757 | 13.49 |
Conclusion：Detoxification efficiency is not notable.
The finished product feedstuff of experimental example 3 addition adsorbent carries out physical absorption experiment
Commercially available suction is added in China Oil and Food Import and Export Corporation the biochemistry energy (Gongzhuling) company corn byproducts whitewashing maize peel, corn germ cake
Attached dose of progress adsorption experiment, its content of toxins does not decline relation with the linear ratio of addition, without detoxification efficiency.Experiment
Data are shown in Table 2：
Table 2：Corn germ cake addition adsorbent detoxification experiment vomitoxin content (ppb) detection data
I is noted：Vomitoxin detection method, error information detection is ± 10%
Conclusion：Detoxification efficiency is not notable.
Experimental example 4 is contrasted using the detoxification efficiency of the inventive method and conventional production methods
For corn deep processing conventional production methods and the inventive method processing are respectively adopted with a collection of raw material corn,
Carry out industrialization continuous production experiment in one month by a definite date, after its maize raw material and soaked for detoxification corn content of toxins Comparative result and
Whitewashing feed product vomitoxin content balance the results are shown in Table 3.
Table 3：Starch processing product vomitoxin content (ppb) detection data are carried out using pre-soaking detoxification process
As a result vomitoxin detoxification efficiency is good after showing present invention implementation, and whitewashing feed product vomitoxin index reaches
Below, qualification rate lifts 2-3 times to 3ppm (national standard 5ppm), meets the requirement of vast feed client.
Claims (1)
1. the vomitoxin poison-removing method during a kind of corn deep processing, it is characterised in that comprise the following steps：
Raw material corn enters each corn soaking tank after testing, after purification, and squeezing into the recycled process water to corn soaking tank is carried out in advance
Immersion, the work that the process water is in zein enrichment process, overflow goes out after last one of seitan concentrates centrifuge
The mass ratio of skill water, 48~52 DEG C of temperature, process water and raw material corn is 0.9：1, keep process water liquid level in tank not have corn,
And whether corn all submerges in regular check tank；
Soak time：Damp grain soaks 1 hour, and solid food soaks 2 hours, is using circulating-heating holding steeping tank temperature during immersion
48~52 DEG C；The tank corn of process water circulation immersion two：After a tank corn pre-soaking, by process water circulating pump in the tank
Squeeze into next tank, after next tank corn carries out process water pre-soaking, the process water be emitted into waste water plate-frame filtering process,
After solid content in big plate-frame filtering waste liquid, Sewage Disposal is emitted into；
The raw material corn is after process water pre-soaking, into sulfurous acid soak process.
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| CN109651516A (en) * | 2018-12-21 | 2019-04-19 | 北安象屿金谷生化科技有限公司 | A kind of dolantin Asia raw material cornstarch processing technology |
| CN111328962A (en) * | 2018-12-19 | 2020-06-26 | 吉林中粮生化有限公司 | Method for degrading vomitoxin in corn deep processing process |
| CN112679622A (en) * | 2020-12-11 | 2021-04-20 | 伊犁川宁生物技术股份有限公司 | Corn pretreatment and soaking process |
| CN113604274A (en) * | 2021-07-26 | 2021-11-05 | 山东三星玉米产业科技有限公司 | Method for removing vomitoxin in corn germ |
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| CN113604274A (en) * | 2021-07-26 | 2021-11-05 | 山东三星玉米产业科技有限公司 | Method for removing vomitoxin in corn germ |
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