60 results about "CORN GRAIN" patented technology

The low-damage corn threshing device comprises a roller main body and an upper cover plate arranged on the upper side of the roller main body, a main shaft connected with external driving equipment is arranged in the roller main body, the main shaft and the roller main body are coaxially arranged, and a spiral feeding opening is formed in an inlet of the roller main body; and a spiral blade is arranged at the spiral feeding port. Corn is threshed through the rigid-flexible combined threshing element and the thumb-preventing threshing element, the collision striking force on corn ears can be reduced, the kernel breakage rate is reduced, the corn threshing income is improved, meanwhile, the concave grid is innovatively designed, a conventional grid type concave grid is changed, and the threshing efficiency is improved. The round tube sleeve type combined concave grid with the square holes is innovatively designed, a nylon sleeve is installed on a round tube of the round tube sleeve type combined concave grid, a cylindrical steel tube is welded to the square holes of the square hole of the round tube sleeve type combined concave grid, the number of times of contact with corn ears is further increased, collision to grains is reduced, and the threshing rate of the corn grains is improved.

The invention provides application of a Zm00001eb378820 gene in molecular marker-assisted breeding for regulating and controlling the hundred-grain weight of corn grains, and relates to the technical field of agricultural biology. A backbone maize inbred line Ye107 is used as a male parent and hybridized with three excellent inbred lines (D39, R-2-1-1 and YML1218), a multi-parent group with remarkable hundred-grain weight difference is constructed, and SNP27712538 positioned on a chromosome 9 is a remarkable associated site by measuring hundred-grain weight phenotype data in multiple environments and combining high-density SNP (Single Nucleotide Polymorphism) markers, GWAS analysis and QTL (Quantitative Trait Loci) positioning. And the functional gene Zm00001eb378820 which is closely related to the regulation and control of the corn hundred-grain weight is excavated. A new insight is provided for a genetic regulation mechanism of the corn hundred-grain weight, and a key target spot is provided for breeding of high-yield corn varieties, so that the breeding efficiency is remarkably improved.

An epigenetic regulatory factor ZmULT1 related to corn grain size regulation and heat stress response and the use thereof, which solve the technical problems of how to increase the grain size and / or heat resistance and / or lodging resistance of corn. Use of a substance for reducing the content of the protein ZmULT1 or a substance for inhibiting the expression of the encoding gene of the protein ZmULT1, which use is any one of the following: P1, the use in increasing the grain size of corn; P2, the use in improving the heat resistance of corn; P3, the use in increasing the lodging resistance of corn; and P4, the use in plant breeding. The homozygous mutant strain with knockout of the ZmULT1 gene has a reduced plant height and an increased grain size, and exhibits significant heat stress resistance, this indicates that the research on the gene can further enrich the use of epigenetics in crops and is of important significance for improving the grain size, heat resistance and lodging resistance of corn.

The utility model relates to the technical field of corn processing equipment, in particular to multi-stage screening equipment for corn seed processing, which comprises a shell, supporting legs, a feeding hopper and the like. The shell is a square shell with an opening in the front side, four supporting legs are fixedly connected to the bottom of the shell at intervals, a feeding hopper is fixedly connected to the left side of the top of the shell, a cover plate is installed on the front side of the shell, and the screening assembly used for conducting classified screening on corn is arranged in the shell. By arranging the screening assembly and the dust removal assembly, corn cobs, corn kernels, corn kernel shred residues and dust can be screened and separated through the screening assembly, screening and separation are thorough, follow-up processing of corn is facilitated, raised dust and deposited dust can be effectively cleaned through the dust removal assembly, and after a cover plate is opened, the whole screening assembly can be taken out of the shell, so that the whole screening assembly is convenient to use. And the sieve plate and the interior of the shell are conveniently cleaned.

The invention provides a cleaning device with an adjustable screening behavior suitable for densely-planted corn, and belongs to the field of corn harvesting machinery. Comprising an upper screen box, a shaking plate, a centrifugal fan, a crank connecting rod mechanism and a lower screen box, the centrifugal fan is fixedly connected with a harvester, the shaking plate is arranged above the centrifugal fan, one end of the shaking plate corresponds to a discharging port of a threshing device, the other end of the shaking plate is provided with the upper screen box, and the lower screen box is arranged below the upper screen box. The ends, close to the centrifugal fan, of the upper screen box and the lower screen box are connected through crank connecting rod mechanisms, the crank connecting rod mechanisms are symmetrically arranged on the two sides of the upper screen box and the two sides of the lower screen box, and a structural unit of the vibrating screen with the adjustable screen penetrating behavior is composed of an upper-section screen plate, a middle-section screen plate, a lower-section screen plate and an inclination-angle-adjustable screen plate. The throwing force of the front end area of the vibrating screen on mixture particles and the vertical speed of air flow on the screen are increased, the separation effect of impurities and grains is promoted, the grain penetrating through the screen is improved, and the low-loss and high-cleanliness purposes of corn grain cleaning are achieved.

The invention provides application of a Zm00001d028188 gene in corn breeding, and relates to the technical field of agricultural biology. The Zm00001d028188 gene can be applied to regulation and control of the hundred-grain weight of corn grains and can be applied to molecular marker-assisted breeding, the nucleotide sequence of the Zm00001d028188 gene is shown as SEQ ID NO.1, and the amino acid sequence of protein coded by the gene is shown as SEQ ID NO.2. The invention further discloses a preparation method of the Zm00001d028188 gene. The defects in the prior art are overcome, the functional gene Zm00001d028188 associated with the hundred-grain weight of the corn grains is excavated, and a theoretical basis is provided for molecular marker-assisted selection and regulation of the hundred-grain weight of the corn grains.

A corn harvester grain tipping device includes a corn grain storage bin, a main support connecting rod, a storage bin mounting platform, a tipping drive hydraulic cylinder, and a limiting connecting rod. The storage bin mounting platform has an agricultural machinery mounting platform on one side and a lower main connecting rod mounting platform on the other side. A lower connecting rod mounting platform is located at the top of the storage bin mounting platform. The lower connecting rod mounting platform has a lower limiting rod connection hole and a lower hydraulic cylinder connection hole at its top. The lower limiting rod connection hole is located on the side of the lower hydraulic cylinder connection hole closest to the lower main connecting rod mounting platform. A corn grain storage bin is mounted on the top of the storage bin. The side of the corn grain storage bin facing the lower main connecting rod mounting platform has a side reinforcing rod and a connecting rod mechanism mounting groove. The side reinforcing rod is located at the top of the connecting rod mechanism mounting groove, and the top of the connecting rod mechanism mounting groove has an upper reinforcing plate.

The utility model relates to the technical field of discharge winnowing of corn threshers, in particular to a discharge winnowing device for a corn thresher, which comprises a hopper and a transverse plate, the surface of the hopper is fixedly connected with the surface of the transverse plate, a corn threshing discharge wind power adjusting structure is arranged on the surface of the hopper, and a fan is fixedly connected to the upper surface of the transverse plate. The draught fan is communicated with the transverse pipe, the transverse pipe penetrates through the hopper and is connected with the hopper in a sealed mode, and a corn threshing dust filtering structure is arranged on the surface of the hopper. According to the discharging winnowing device for the corn thresher, through cooperation of a corn threshing discharging wind power adjusting structure and a draught fan, a motor is started to drive a first gear to rotate in a second box body, the first gear rotates to drive a second gear to rotate anticlockwise in the second box body, and the second gear rotates anticlockwise to drive a transverse rod to move anticlockwise; a corn threshing and discharging wind power adjusting structure is additionally arranged, so that the situation that wind power does not reach the standard when too many corn kernels are conveyed in the receiving hopper is avoided, and the dust removal and sorting quality is improved.

The invention discloses a cleaning device of a corn kernel harvester with adjustable screen inclination angle and amplitude. The cleaning device comprises a screen box device, a screen inclination angle adjusting device and a screen box driving device, the screen inclination angle adjusting device is used for adjusting the inclination angle of a screen in the screen box device in real time; the screen box driving device is used for adjusting the vibration amplitude of the screen box device by adjusting the rotating speed of the driving belt wheel; the screen box driving device can obtain different amplitudes by adjusting the adjusting nut on the screen box fixing jacket bolt of the screen box driving device, so that the vibration amplitude of the screen box device is changed; through the arranged screen inclination angle adjusting device, the inclination angle of the upper screen of the cleaning device can be adjusted in real time along with the change of the inclination angle of the machine tool, and the problems that when the machine tool works in the complex slope environment, materials are accumulated on the screen face, and the cleaning time of the screen face is short are solved. And the adaptability of the cleaning device to a complex working environment and the cleaning performance of the machine tool are improved.

The invention discloses a corncob removing device which comprises a separating box, a separating plate is fixed in the separating box, a net-shaped V-shaped plate is fixed to the separating plate and the separating box, a driving shaft is arranged on the separating plate, a first spiral blade, a dispersing rod and a second spiral blade are sequentially arranged on the driving shaft, a flow guide cover is fixed to the V-shaped plate, and a first spiral blade and a second spiral blade are sequentially arranged on the flow guide cover. The first spiral blade, the dispersing rod and the second spiral blade are covered with the flow guide cover, an extrusion conveying channel is formed between the flow guide cover and the V-shaped plate, a transmission cavity is formed between the isolation plate and the separation box, and a motor is installed on the separation box. The problem that traditional drum screen equipment cannot thoroughly remove impurities similar to corn in particle size and physical property is solved, forced separation of corn and corncobs is achieved, and the corn impurity removal precision is improved; meanwhile, the dust raising phenomenon on the working site is reduced through the dustproof design, the working environment is improved, and the health of operators is guaranteed.

The present invention discloses a method for establishing an operating parameter combination model of a corn grain harvester based on an orthogonal experiment, comprising: step one, analyzing the entire operating process of the corn harvester, and preliminarily determining key operating factors that affect the operating quality of the corn harvester; step two, determining orthogonal experimental factors and levels; step three, formulating an orthogonal experimental plan; step four, carrying out a corn harvester harvesting experiment according to the orthogonal experimental plan determined in step three, and analyzing the experimental data; step five, performing experimental data processing and analysis; and step six, applying the optimized parameter combination to the actual operation of the harvester for verification. The present invention obtains an optimized operating parameter combination through this model, so that the harvester works under the optimized operating parameter combination, and can obtain better operating quality and operating efficiency, thereby providing a new solution for improving the operating quality and operating efficiency of the harvester. The operating parameter combination model can be used for the design and development of an intelligent control system for the harvester.

The utility model relates to the field of grain storage, in particular to a corn grain storage ventilation device which comprises a grain storage barrel. The lower end of the grain storage barrel is provided with the ventilation assembly, the upper end of the grain storage barrel is fixedly connected with evenly-distributed supporting frames, the upper ends of the supporting frames are fixedly connected with a second mounting frame, the lower end of the inner wall of the grain storage barrel is fixedly connected with the ventilation barrel in a penetrating mode, and the inner wall of the second mounting frame is fixedly connected with a first motor. The lower end of the output end of the first motor is fixedly connected with an air duct, and the outer wall of the grain storage barrel is fixedly connected with two limiting strips. By starting the first motor, the output shaft of the first motor drives the air cylinder to rotate, so that the ventilation cylinder on the grain storage barrel can ventilate the inside of the grain storage barrel, and meanwhile, the ventilation assembly is started to ventilate the lower part of the grain storage barrel; in the whole process, the interior and the lower end of the grain storage barrel are subjected to dual ventilation treatment, the interior of the grain storage barrel can be effectively kept dry, and corn deterioration caused by moisture is prevented.

The invention relates to the technical field of agricultural machinery, in particular to a distributed electric drive lifting and cleaning all-in-one machine which comprises a square through pipe used for conveying materials, a discharge pipe used for discharging fine impurities in the materials, a suction mechanism used for sucking grass leaves in the materials and a fishing-up mechanism, and one end of the square through pipe is of an opening structure. According to the corn thresher disclosed by the invention, threshed corn grains are fed into the square through pipe from the feeding opening, then grass leaves mixed in the corn grains can be sucked by the suction mechanism and are minced and discharged, and the corn grains, impurities and the grass leaves mixed in the corn grains can be fished up and thrown through the fishing-up mechanism; the corn grains, impurities and grass leaves are closer to the suction mechanism so as to be sucked and discharged, the grass leaves can be more easily fished up by the fishing-up mechanism so as to be close to the suction mechanism through the fishing-up mechanism, and then the residual impurities in the corn grains can be blown away through the blower, so that the cleaning effect on the corn grains is improved, and the subsequent treatment on the corn grains is reduced; the use by a user is convenient.

The utility model relates to the technical field of seeding devices, and discloses a corn seeding device which comprises a U-shaped frame and a seeding cylinder, a storage hopper is arranged at the upper end of the seeding cylinder, a seeding shovel is arranged at a discharge port in the lower end of the seeding cylinder, a limiting round shell is arranged at the upper end of the seeding cylinder and located below the storage hopper, and a handheld pipe is arranged in the center of the front face of the limiting round shell. A discharging control assembly is arranged at the upper end of the seeding cylinder through a limiting round shell and a handheld pipe, and rolling wheels are rotatably arranged at the lower ends of the two side walls of the outer surface of the U-shaped frame. According to the corn sowing device, corn kernels to be sown can be stored through the arranged storage hopper, a worker holds the handheld pipe, the corn sowing device can be pulled or pushed to move under the cooperation of the rolling wheels, and time and labor are saved.

The invention relates to the technical field of gene engineering, in particular to application of a corn MYBR47 gene in regulation and control of grain traits and variety breeding and a transgenic plant cultivation method, and the sequence of the MYBR47 gene is shown as SEQ ID NO: 1. According to the application, a nitrogen response gene MYBR47 is found in corn, and MYBR47 mutation can influence the grain size, starch content and protein content; yeast one-hybridization results show that the gene regulates and controls development of corn kernels by influencing cell division / expansion. By utilizing the gene MYBR47, new varieties with different grain sizes and improved nitrogen utilization efficiency can be cultivated, and a foundation is laid for application practice of corn breeding.

The utility model discloses crushed corn grain recycling equipment, which belongs to the technical field of corn, and adopts the technical scheme that the crushed corn grain recycling equipment comprises an equipment frame, a limiting block is fixedly connected to the top of the inner wall of the equipment frame, a supporting frame is fixedly connected to the interior of the equipment frame, a crushing barrel is arranged at the top of the equipment frame, and a feeding mechanism is arranged at the top of the crushing barrel; the feeding mechanism comprises a cover plate, a bearing, a sealing groove and two feeding pipes, the top of the bearing extends into the cover plate and is rotationally connected with the interior of the cover plate, the top of the crushing barrel extends into the sealing groove and is in close contact with the interior of the sealing groove, and the bottom of the feeding pipe fixedly communicates with the top of the cover plate; the problems that most existing crushed corn grain recycling devices directly scatter bran on the ground after crushing the crushed corn, cleaning is inconvenient, time needs to be spent on mixing the bran with other feed for livestock to eat, and time and labor are wasted are solved.

The present invention provides a grain drying boiler heat exchange device, comprising: a circular ring; a heat exchange unit, the heat exchange unit being disposed on one side of the circular ring; a loading unit, the loading unit being disposed above the circular ring; and a discharge unit, the loading unit transferring the grain into the heat exchange unit for drying, and the discharge unit discharging the dried grain from the heat exchange unit. The heat exchange unit comprises a fixed base, the fixed base being disposed on the ground. The present invention drives the frame to rotate by a rotating driving member a, thereby driving the receiving tube to rotate to a horizontal state. The heat exchange tube is connected to a night trough. The boiler discharges hot water into the heat exchange tube through a water inlet pipe and a night trough, and then discharges it through the night trough and a drain pipe. The circulating hot water realizes heat exchange in the heat exchange tube, drying the corn grains in the receiving tank. The corn grains can be dried even on cloudy, rainy, and snowy days, making the device easy to use.

The present invention relates to the technical field of corn processing, and specifically to a high-efficiency corn grain harvester with an arranged conveying structure, comprising an outer frame and a positioning frame, a feeding trough being provided at one end of the top surface of the outer frame, and the positioning frame being fixedly installed at the middle section inside the outer frame, a rotating rod being rotatably provided at the center of the inner portion of the positioning frame, and a storage plate being fixedly installed at one side of the rotating rod inside the positioning frame; in the present invention, firstly, multiple groups of corn cobs are dynamically clamped so as to be compatible with corn cobs of different specifications and achieve a parallel multi-cob threshing effect; secondly, a coordinated mode of axial rotation and transverse and longitudinal radial slicing is adopted to achieve multi-directional composite threshing, forcing the corn cob threshing rate to be steadily improved; finally, through integrated sorting and discharging, the secondary threshing and screening processes are forced to be completed synchronously, effectively controlling the broken core mixing rate and improving the corn harvesting quality and efficiency.

The invention discloses a control method and system for the slowing processing temperature of fresh corn, which specifically relates to the technical field of food preservation and processing, and is used to solve the problem of different sterilization effects caused by uneven steam transmission in existing slowing and sterilization processes; stress data of the internal structure of corn kernels are collected before slowing treatment, and stress distribution parameters are calculated based on a finite element analysis algorithm; temperature parameters of the slowing process are set in stages through a proportional-integral-differential control algorithm according to the stress distribution parameters; steam temperature data in a sterilization device are collected after the slowing is completed, and steam flow field parameters are generated based on computational fluid dynamics algorithm analysis; heating power output and steam pressure are dynamically adjusted according to the flow field parameters; steam residence time distribution is monitored, and steam residence time uniformity deviations are classified using an adaptive resonance theory network; steam injection parameters are controlled based on the classification results; temperature control from slowing to sterilization is achieved, and the efficiency of sterilization is improved.

The utility model belongs to the technical field of corn seed processing and discloses small threshing equipment for corn seed processing. The small threshing equipment comprises a machine body, two first motors are arranged on the right side of the machine body, rotating shafts are fixedly connected to the left sides of the first motors, a fixing frame is fixedly connected to the top of the machine body, and an air cylinder is fixedly connected to the bottom of the fixing frame. The bottom of the machine body is fixedly connected with a collecting box, the interior of the collecting box is movably connected with a drawing box, the interior of the drawing box is slidably connected with a push plate, the first motor is started, the rotating shaft is driven to rotate, the corn cobs are made to rotate on the rotating shaft, and the air cylinder and the hammering head are started to hammer the corn cobs; corn kernels are hammered to fall into a drawing box in a collecting box, a push plate is moved, the corn kernels are pushed to the left side in the drawing box, rapid threshing and collecting are facilitated, and the corn threshing efficiency is improved; and a second motor is started, a threaded rod runs to drive a sliding block to move in a sliding groove, and convenience is brought to automatic pushing operation of a pushing plate.

Invention name: A posture-controlled guided high-speed precision corn seeding device Abstract: The present invention discloses a posture-controlled guided high-speed precision corn seeding device, including a trouser-shaped seed guide tube, a front shell, a rear shell, a seeding wheel, a seed protection plate, a mirror-image seed protection plate, an edge curved surface, a mirror-image edge curved surface and a transmission shaft. The present invention adopts a posture-adjusting groove structure formed by a seed protection plate and a shell wall, which effectively overcomes the adverse effect of a large amount of seed accumulation and arching in the seed chamber on seed filling; by adjusting the seed posture before seed filling, the problem that the mechanical seeding device cannot fill the seeds due to different seed postures and mismatched hole structures during seed filling is effectively solved; the fixed posture of the seeds is used to carry out directional seed filling along the direction of the hole opening, which can effectively separate excess seeds and ensure reliable seed cleaning under high-speed operation conditions. The present invention has a simple and compact structure, has good adaptability to the complex shape of corn kernels, and can significantly improve the high-speed operation quality of precision seeders.

The invention relates to the field of grain drying, in particular to a method for improving corn starch resistance through hot air and microwave combined drying. The method comprises the following steps: drying corn kernels with the moisture content of 22-30% by using microwaves and hot air at the same time; the method comprises the following steps: soaking dried corn kernels, extracting starch through a wet grinding procedure, and drying to obtain the high-resistance corn starch. The microwave enables the interior of the material to rise quickly, and hot air is combined for synergistic heating, so that drying uniformity and heat and mass transfer efficiency can be improved. Meanwhile, due to the combined action of heat and moisture, the starch structure is changed, so that the resistance of the starch is improved. The resistance of the corn starch is improved through drying processing, the subsequent tedious processing flow can be simplified, the production cost is reduced, and the method has remarkable energy-saving and environment-friendly advantages.

The application discloses a method for promoting Jinliangnu No.1 kaffir corn to increase amylopectin content by using arbuscular mycorrhizal fungi, and the arbuscular mycorrhizal mixed fungicide is pelletized with the sterilized Jinliangnu No.1 kaffir corn seeds, and the treated kaffir corn seeds form a symbiotic body with the arbuscular mycorrhizal fungi in the growth and development process, so that the amylopectin content of the kaffir corn grains can be significantly improved. In addition, the application can improve the germination rate and the growth phenotype index of the Jinliangnu No.1 kaffir corn in the seedling stage, and solves the problem of large dosage of the arbuscular mycorrhizal fungicide in the prior art. The application is simple and convenient, has good economic benefit, social benefit and ecological benefit, and also provides technical support for sustainable planting of a Guizhou karst farmland ecological system.

The invention belongs to the field of molecular biology, and particularly relates to a gene ZmPAB1 capable of regulating and controlling the size of a corn kernel as well as a mutant and application of the gene ZmPAB1. The invention specifically discloses application of a protein, a substance for regulating and controlling the expression of a coding gene of the protein or a substance for regulating and controlling the activity or content of the protein in regulating and controlling the size of a plant seed and / or preparing a product for regulating and controlling the size of the plant seed and / or plant breeding and / or preparing a plant breeding product. The protein is a protein as shown in SEQ ID NO.3 or SEQ ID NO.6 in a sequence table. It is found that the corn ZmPAB1 gene can regulate and control the size of corn kernels, specifically, a ZmPAB1 gene mutant is prepared, and the mutant shows that the length, the width, the thickness and the hundred-kernel weight of the kernels are all obviously reduced. The invention not only provides a theoretical basis for analyzing the development mechanism of the grains, but also plays an important role in corn grain size variety improvement and biological breeding.

The utility model relates to the field of crop harvesting, and discloses a corn harvester auxiliary device for harvesting fallen corn, which comprises a corn harvester, a conveyor belt is fixedly mounted at the front end of the corn harvester, a corn harvesting auxiliary device is fixedly arranged at the front end of the corn harvester, and a corn kernel collecting tank is arranged at the top of the corn harvester. A baffle used for preventing corn kernels from falling off is fixedly arranged on the side edge, corresponding to the conveying belt, between the inner walls of the two sides of the corn kernel collecting tank, a driving motor is fixedly installed on one side of the corn harvester, and the corn harvester further comprises a corn kernel screening assembly and a shaking assembly. The two sets of hinged supports can shake the collecting iron box left and right through the connecting rod, so that corn kernel chippings in the collecting iron box are screened through the multiple sets of corn holes, the cost of manually screening the corn kernel chippings is effectively reduced, the working efficiency and quality of corn during harvesting are improved, and the profit during corn harvesting is increased.

The utility model provides a corn grain crushing device, which belongs to the technical field of corn grain crushing, and comprises a crushing cylinder and a crushing mechanism arranged in the crushing cylinder, the crushing mechanism comprises a mounting port arranged in the middle of the upper end face of the crushing cylinder, an electric telescopic rod is arranged in the mounting port, and the lower end of the telescopic end of the electric telescopic rod is rotatably connected with a crushing head. The crushing head is matched with an inner cavity of the crushing barrel, and a pre-crushing assembly is further arranged at the upper end of the crushing barrel. Through the two-stage synergistic effect of the pre-crushing assembly and the crushing mechanism, corn particles can be preliminarily cut and crushed, the time needed for crushing the corn particles is shortened to a certain degree, effective and efficient crushing treatment of the corn particles is achieved, the corn particles can be controlled to reach the needed fine crushing degree, and the corn crushing efficiency is improved. The working efficiency of corn particle crushing is greatly improved, and the problem that the corn particles need to be crushed again due to the fact that the corn particles are not crushed in place is solved.

The utility model relates to a threshing device for corn seed processing. The threshing device comprises a shell, a rotating device arranged in the shell and a threshing slope arranged on the inner side of the shell. According to the threshing device, the first rotating roller is used for driving corn to rotate and make contact with the separation teeth on the threshing slope, corn kernels are stripped, corn cobs obtained after preliminary separation enter the second rotating roller, the second rotating roller is of a circular truncated cone structure, the distance between the second rotating roller and the threshing slope is gradually reduced, the corn kernel stripping efficiency is improved, and stripping is more thorough.

The present disclosure provides systems and methods for the recovery of protein species from wet mill grain process streams. Systems and methods of the present disclosure may be integrated with a wet mill grain process to separate out protein species that may limit efficiency of the grain process and produce one or more product streams comprising these separated protein species. A feed stream may be fractionated by at least two membranes into retentate and permeate streams. Removing larger proteins through the membrane fractionation may allow previously soluble prolamin products in the permeate stream(s) to precipitate. The recovered protein species may include prolamin, such as zein from a corn grain feed.

A method for producing alcoholic beverages from alkaline cooking, using as a basis the increase in pH in the medium to cook cacahuazintle corn grains, other similar mealy corn or any other grain, which offers a different proposal due to the generation of flavors, aromas and sensory characteristics that differentiate the products obtained by the methods herein disclosed from existing alcoholic beverages. A method for producing alcohol for human consumption and / or industrial use from the recovery and treatment of nejayote obtained from alkaline cooking residues, also known as nixtamalization of corn, applied to any alkaline cooking residue in the alimentary field.

The utility model discloses a controllable corn flail knife mechanism which comprises a gear box assembled on a corn kernel harvester or a corn ear picking harvester. The flail knife mechanism is used for cutting off corn stalks, the clutch mechanism is used for controlling the working state of the flail knife mechanism, the returning mechanism is used for being matched with the flail knife mechanism to smash and return the corn stalks to the field, the flail knife mechanism is assembled at the output end of the gear box, and the clutch mechanism is arranged between the flail knife mechanism and the gear box. The header has the advantages that the structure is simple, the flail knife mechanism is arranged to be matched with the clutch mechanism, the working mode of the flail knife mechanism can be adjusted, and therefore the header can be suitable for a corn kernel harvester or a corn ear picking harvester. And the working state of the flail knife mechanism is adjusted according to different working conditions, so that the harvesting efficiency of the harvester is effectively improved, and the gearbox is prevented from being damaged due to overhigh pressure.