A molasses-type corn flour, its preparation method and application
By preparing molasses-type corn flour and combining it with soybean molasses, the problem of insufficient nutrition in traditional corn flour has been solved, achieving balanced and efficient absorption of nutrients, and improving animal production performance and economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN DEBANG ANIMAL HUSBANDRY CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional corn flour has low protein content, an unbalanced essential amino acid profile, and its nutrients are easily lost during processing, limiting its application in scenarios with high nutritional requirements.
Molasses-based corn flour is prepared by combining soybean molasses with corn flour. The process includes spraying, natural adsorption, drying, cooling, pulverizing, and sieving, resulting in a more nutritious and balanced corn flour.
It significantly improves the nutritional composition and digestibility of corn flour for animals, enhances animal growth performance, reduces production costs, and has higher protein content and energy value.
Smart Images
Figure CN120959330B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of feed technology, and in particular to a molasses-type corn flour, its preparation method, and its application. Background Technology
[0002] Traditional corn flour, a powdered product made from corn through processes such as hulling and grinding, has long had inherent limitations that restrict its application value: not only is its protein content low, but its essential amino acid composition is also unbalanced, making it difficult to meet the needs of high-nutrition applications. More importantly, in subsequent processing stages, both the mechanical action during grinding and the temperature effects during heat treatment can damage the starch crystal structure, further accelerating the loss of nutrients and further diminishing its already limited nutritional value.
[0003] This dual problem of inherent deficiencies and acquired losses has become a key bottleneck restricting the in-depth application of corn flour in food processing, feed production, and other fields. For the modern food industry, which pursues nutritional balance, and the livestock industry, which increasingly demands feed efficiency, how to overcome the limitations of traditional processes and develop technical solutions that can fundamentally improve the nutrient content of corn flour is both a practical need for industry development and a crucial issue that urgently needs to be addressed. Therefore, this field urgently needs a technical solution that can optimize the nutrient content of corn flour. Summary of the Invention
[0004] The purpose of this invention is to provide a molasses-type corn flour, its preparation method, and its application. This molasses-type corn flour integrates the functional characteristics of soybean molasses and corn flour, solving the limitations of traditional feed in terms of nutrition, functionality, and resource utilization, while improving animal production performance and economic benefits of breeding.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:
[0006] This invention provides a molasses-type corn flour, comprising the following raw materials in parts by weight: 60-70 parts corn flour and 30-40 parts soybean molasses.
[0007] The present invention also provides a method for preparing the molasses-type corn flour, comprising the following steps:
[0008] (1) Spray soybean molasses onto corn flour, mix, and obtain primary material;
[0009] (2) The primary material is naturally adsorbed, dried, cooled, crushed and sieved to obtain molasses-type corn flour.
[0010] Preferably, the corn flour in step (1) has a moisture content ≤12%, a crude protein content ≥9%, a crude fat content ≥3%, a crude fiber content ≤7%, and a particle size of 40-60 mesh; the soybean molasses has a moisture content ≤50%, a total sugar content ≥55%, and a crude protein content ≥9%.
[0011] Preferably, in step (1), the corn flour is stirred during spraying, the stirring speed is 20-30 rpm, the temperature of the concentrated soybean molasses is 40-50℃, the spraying pressure is 0.3-0.5 MPa, the spraying time is 5-10 min, the mixing time is 3-5 min, and the mixing speed is 20-30 rpm.
[0012] Preferably, the temperature for natural adsorption in step (2) is 20–30°C and the time for natural adsorption is 22–36 h.
[0013] Preferably, the drying temperature in step (2) is 60-70°C and the drying time is 30-60 min.
[0014] Preferably, the cooling time in step (2) is 30 to 50 minutes, and the aperture of the sieve plate for crushing is 0.8 to 0.9 mm.
[0015] Preferably, the sieving instrument in step (2) is a double-layer sieve, wherein the mesh size of the upper sieve is 15-25 mesh and the mesh size of the lower sieve is 35-45 mesh.
[0016] The present invention also provides the application of the molasses-type corn flour or the molasses-type corn flour prepared by the above preparation method in feeding livestock and poultry.
[0017] Preferably, when the livestock or poultry are laying hens or broilers, the method of using molasses-type corn flour is as follows: replace 5-10 wt% of the traditional feed corn flour in the basic daily diet with molasses-type corn flour and then mix it evenly before feeding.
[0018] When the livestock or poultry is pigs, the method of using molasses-type corn flour is as follows: replace 10-30 wt% of the traditional feed corn flour in the basic daily diet with molasses-type corn flour and then mix it evenly before feeding.
[0019] When the livestock and poultry are ruminants, the method of using molasses-type cornmeal is as follows: replace 5-30 wt% of the traditional feed cornmeal in the basal diet with molasses-type cornmeal and then mix it evenly before feeding.
[0020] The beneficial effects of this invention are as follows:
[0021] This invention produces a soybean molasses-based corn flour using an innovative formula. This flour is not only more nutritious and higher in energy, with a significantly improved caloric value and a more comprehensive and balanced nutritional composition, but also boasts advantages such as lower production costs and higher protein content. Adding it to poultry and livestock feed can effectively improve animal digestibility and absorption, and enhance animal growth performance.
[0022] The soybean molasses-based corn flour of this invention has good stability. It uses only soybean molasses and corn flour as raw materials throughout the entire process, without adding any other materials. It is superior to traditional corn flour in terms of energy level, palatability, cost reduction and efficiency improvement, and product stability. Attached Figure Description
[0023] Figure 1 A flowchart illustrating the production process of molasses-based cornmeal feed;
[0024] Figure 2 This is a picture of the finished product of molasses-type corn flour. Detailed Implementation
[0025] This invention provides a molasses-type corn flour, comprising the following raw materials in parts by weight: 60-70 parts corn flour and 30-40 parts soybean molasses (liquid).
[0026] The present invention also provides a method for preparing the molasses-type corn flour, comprising the following steps:
[0027] (1) Spray soybean molasses onto corn flour, mix, and obtain primary material;
[0028] (2) The primary material is naturally adsorbed, dried, cooled, crushed and sieved to obtain molasses-type corn flour.
[0029] In this invention, the moisture content of the corn flour in step (1) is preferably ≤12%, more preferably 10%, the crude protein content is preferably ≥9%, more preferably 10%, the crude fat content is preferably ≥3%, more preferably 4%, the crude fiber content is preferably ≤7%, more preferably 6%, and the particle size of the corn flour is preferably 40-60 mesh, more preferably 50 mesh; the moisture content of the soybean molasses is preferably ≤50%, more preferably 40%, the total sugar content is preferably ≥55%, more preferably 60%, and the crude protein content is preferably ≥9%, more preferably 10%.
[0030] In this invention, the corn flour is in a stirring state during spraying in step (1), the stirring speed is preferably 20-30 rpm, more preferably 25 rpm, the temperature of the soybean molasses is preferably 40-50℃, more preferably 45℃, the spraying pressure is preferably 0.3-0.5 MPa, more preferably 0.4 MPa, the spraying time is preferably 5-10 min, more preferably 8 min, the mixing time is preferably 3-5 min, more preferably 4 min, and the mixing speed is preferably 20-30 rpm, more preferably 25 rpm.
[0031] In this invention, the temperature of natural adsorption in step (2) is preferably 20-30°C, more preferably 25°C, and the time of natural adsorption is preferably 22-36h, more preferably 24-32h, and even more preferably 28h.
[0032] In this invention, the drying temperature in step (2) is preferably 60-70°C, more preferably 65°C, and the drying time is preferably 30-60 min, more preferably 40-50 min, and even more preferably 45 min.
[0033] In this invention, the cooling time in step (2) is preferably 30 to 50 minutes, more preferably 40 to 50 minutes, and even more preferably 45 minutes. The cooling instrument is preferably a counter-flow cooler, and the aperture of the sieve plate for crushing is preferably 0.8 to 0.9 mm, and more preferably 0.85 mm.
[0034] In this invention, the pulverizing instrument used in step (2) is preferably a hammer mill.
[0035] In this invention, the sieve used in step (2) is preferably a double-layer sieve, wherein the mesh size of the upper sieve is preferably 15 to 25 mesh, more preferably 20 mesh, and the mesh size of the lower sieve is preferably 35 to 45 mesh, more preferably 40 mesh.
[0036] The present invention also provides the application of the molasses-type corn flour or the molasses-type corn flour prepared by the above preparation method in feeding livestock and poultry.
[0037] In this invention, when the livestock or poultry are laying hens or broilers, the preferred method of using molasses-type corn flour is to replace 5-10 wt% of the traditional feed corn flour in the basic daily ration with molasses-type corn flour and then mix them together before feeding; more preferably, to replace 8 wt% of the traditional feed corn flour in the basic daily ration with molasses-type corn flour and then mix them together before feeding.
[0038] When the livestock or poultry is a pig, the preferred method of using molasses-type corn flour is to replace 10-30 wt% of the traditional feed corn flour in the basic daily ration with molasses-type corn flour and then mix them together before feeding; a more preferred method is to replace 20 wt% of the traditional feed corn flour in the basic daily ration with molasses-type corn flour and then mix them together before feeding.
[0039] When the livestock and poultry are ruminants, the method of using molasses-type corn flour is as follows: replace 5-30 wt% of the traditional feed corn flour in the basic daily diet (concentrate) with molasses-type corn flour and then mix and feed it; more preferably: replace 15 wt% of the traditional feed corn flour in the basic daily diet with molasses-type corn flour and then mix and feed it.
[0040] The production process of the soybean molasses-type corn flour of the present invention is as follows: Figure 1 As shown.
[0041] The technical solutions provided by the present invention will be described in detail below with reference to the embodiments, but they should not be construed as limiting the scope of protection of the present invention.
[0042] Example
[0043] 1. Raw material selection
[0044] 65 kg of high-quality corn flour is selected: moisture content is 12%, crude protein content is 9.5%, crude fat content is 5%, and crude fiber content is 6.5%. The particle size is 60 mesh, and it is free from mold, lumps, and insect infestation.
[0045] 35kg of high-quality soybean molasses (concentrated soybean molasses) is selected: the moisture content is 50%, the total sugar content is 55%, and the crude protein content is 8%. It has good adhesion, palatability and nutritional value.
[0046] 2. Mother liquor spraying premix
[0047] Weigh the corn flour and put it into a twin-shaft paddle mixer. While stirring (25 rpm), use a pressure spray gun (0.4 MPa) to evenly and slowly spray the preheated soybean molasses (45°C) onto the flowing corn flour.
[0048] Spraying should be completed within 8 minutes to ensure the molasses is evenly dispersed and initially contacts the corn flour. After spraying, continue mixing for 4 minutes to ensure the materials are initially and evenly mixed.
[0049] 3. Natural adsorption
[0050] Discharge the premixed material from the mixer and transfer it to a clean, well-ventilated silo or spread it on a clean workshop floor. Allow it to stand naturally at room temperature (25°C) for 24 hours to ensure that no obvious free molasses seeps out and that the material is loose and not sticky to the touch.
[0051] 4. Drying
[0052] The material that has completed natural adsorption is evenly fed into a multi-layer mesh belt dryer and dried with hot air at 65℃ for 45 minutes. The drying continues until the material is loose, without obvious lumps, uniform in color, and ranges from light brown to golden yellow, with a moisture content of 12%.
[0053] 5. Cooling
[0054] The dried hot material (temperature 55±2℃) is immediately sent to a counter-flow cooler to cool for 40 minutes to ensure that the material temperature drops to close to room temperature.
[0055] 6. Crushing
[0056] The cooled material is fed into a hammer mill, and a 0.8mm aperture sieve is used to control the particle size. The crushed material should be uniform and free of large particles.
[0057] 7. Sieve
[0058] The crushed material is screened through a vibrating screen.
[0059] The sieve mesh size is 20 mesh (0.85 mm), used to remove any small amount of large particles or lumps that may not be properly ground. The lower sieve mesh is 40 mesh (0.42 mm), used to remove excess fine powder and dust, ultimately yielding molasses-type corn flour. Its nutritional indicators are shown in Table 1. See the finished product image below. Figure 2 .
[0060] 8. Screw conveyor, automatic packaging and finished product delivery
[0061] The sieved, qualified finished materials are smoothly conveyed to the automated packaging section via an auger conveyor. The conveying process should avoid violent impacts and long-distance lifting to reduce particle breakage and grading. An automatic quantitative packaging scale is used, set to a weight of 40kg per bag. The material is filled into woven or composite bags lined with plastic film, sealed, and then released from storage.
[0062] Characteristics of the obtained product: The molasses-type corn flour obtained in this embodiment is a uniform light brown to golden yellow granular product with a rich molasses caramel aroma. It is free from lumps and mold, has a moisture content of 12.0%, uniform particle size (30±2 mesh), good flowability, and is easy to mix evenly in subsequent complete feed production. This product is rich in sugars, organic acids, minerals from molasses and energy from corn, which can significantly improve the palatability and nutritional value of livestock and poultry feed.
[0063] Table 1 Nutritional Composition
[0064] project index Ash ≤11％ Moisture ≤13％ fiber ≤5％ crude protein ≤10％
[0065] Application Example 1
[0066] Forty whole male lambs with an initial average weight of 20.7 ± 2.5 kg and an age of approximately 120 days were used. The male lambs were divided into four treatments (0 wt%, 10 wt%, 20 wt%, and 30 wt% molasses-based cornmeal) and then into five randomized blocks based on their initial weight. The lambs were acclimatized for 16 days, and their diets contained the corresponding amount of molasses-based cornmeal.
[0067] Table 2. Effects of molasses-based cornmeal addition on lamb production performance.
[0068]
[0069] The study in Table 2 shows that replacing molasses cornmeal with 10 wt% can increase lambs' final body weight and average daily weight gain. This indicates that molasses cornmeal can, to some extent, replace cornmeal and improve lamb growth performance.
[0070] Application Example 2
[0071] Forty dairy cows of the same parity, similar body weight, lactation days and milk production, and within 20 days postpartum were randomly divided into two groups and fed separately. The control group was fed a basal diet, while the experimental group was fed a mixed feed supplemented with 15 wt% molasses cornmeal.
[0072] Table 3 Grouping of Experimental Cattle
[0073] Group experimental group control group Head count 20 20 Average body weight / kg 562.5 553.4 Average parity 2 2 Average number of days of lactation / day 21 17 Average daily milk production / kg 28.8 28.5
[0074] The study in Table 3 shows that, all other things being equal, the addition of molasses cornmeal to the diet increased the body weight, average daily milk yield, and average number of days of lactation of dairy cows during peak lactation. This indicates that molasses cornmeal can replace cornmeal to some extent and has an advantage in dairy cow production performance.
[0075] Application Example 3
[0076] Twelve healthy castrated sheep (6 months old, average weight 36.6 kg) with normal growth and development, good appetite, and no disease were purchased and implanted with permanent rumen fistulas. A single-factor experimental design was used, and the 12 sheep were randomly divided into four groups of three sheep each. The control group was fed a basal diet, while the experimental groups received 2 wt%, 5 wt%, and 8 wt% molasses-based cornmeal as supplements to their basal diet, respectively. Initial conditions were kept identical across all groups.
[0077] The experimental sheep were housed in groups in separate pens. Each sheep was fed twice a day, at 08:00 and 16:00, with each feeding consisting of 500g of hay and 300g of concentrate. Molasses-based cornmeal was added to the diet according to the group and mixed evenly. They had free access to water. The sheep pen and manure were cleaned once before each feeding.
[0078] Table 4. Dynamic changes in rumen pH at different time points
[0079]
[0080]
[0081] Table 5. Effects of molasses-type corn flour on rumen NH3-N concentration
[0082]
[0083] The experimental results in Tables 4 and 5 show that replacing molasses-type corn flour with 5 wt% in the feed can increase the concentration of rumen propionic acid and NH3-N, increase the amount of microbial protein, improve the rumen environment, promote rumen fermentation, and benefit the metabolism and growth of sheep.
[0084] As can be seen from the above embodiments, the present invention provides a molasses-type corn flour, its preparation method, and its application. The molasses-type corn flour comprises the following raw materials in parts by weight: 60-70 parts corn flour and 30-40 parts soybean molasses. The molasses-type corn flour of the present invention uses only soybean molasses and corn flour as raw materials, without adding any other materials. It is superior to traditional corn flour in terms of energy level, palatability, cost reduction and efficiency improvement, and product stability, and has outstanding application value in animal feed. This feed can effectively solve the limitations of traditional feed. When using it, it can replace conventional corn-based raw materials according to nutritional indicators, and the dosage can be adjusted according to different livestock and poultry species and growth stages, thereby significantly improving the production performance of various livestock and poultry such as pigs, poultry, and ruminants.
[0085] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A molasses-type corn flour, characterized in that, It contains the following ingredients by weight: 60-70 parts corn flour and 30-40 parts soybean molasses; The method for preparing the molasses-type corn flour includes the following steps: (1) Spray soybean molasses onto corn flour, mix, and obtain primary material; (2) The primary material is naturally adsorbed, dried, cooled, crushed and sieved to obtain molasses-type corn flour; The drying temperature in step (2) is 60~70℃ and the drying time is 30~60min.
2. The method for preparing molasses-type corn flour according to claim 1, characterized in that, Includes the following steps: (1) Spray soybean molasses onto corn flour, mix, and obtain primary material; (2) The primary material is naturally adsorbed, dried, cooled, crushed and sieved to obtain molasses-type corn flour; The drying temperature in step (2) is 60~70℃ and the drying time is 30~60min.
3. The preparation method according to claim 2, characterized in that, The corn flour in step (1) has a moisture content of ≤12%, a crude protein content of ≥9%, a crude fat content of ≥3%, a crude fiber content of ≤7%, and a particle size of 40~60 mesh; the soybean molasses has a moisture content of ≤50%, a total sugar content of ≥55%, and a crude protein content of ≥9%.
4. The preparation method according to claim 3, characterized in that, In step (1), the corn flour is in a stirring state during spraying, the stirring speed is 20~30 rpm, the temperature of the soybean molasses is 40~50℃, the spraying pressure is 0.3~0.5MPa, the spraying time is 5~10min, the mixing time is 3~5min, and the mixing speed is 20~30 rpm.
5. The preparation method according to claim 4, characterized in that, The temperature for natural adsorption in step (2) is 20~30℃, and the time for natural adsorption is 22~36h.
6. The preparation method according to claim 2, characterized in that, The cooling time in step (2) is 30~50 min, and the sieve plate aperture of the pulverizer is 0.8~0.9 mm.
7. The preparation method according to claim 6, characterized in that, The sieving instrument mentioned in step (2) is a double-layer sieve, with the upper sieve mesh having a mesh size of 15-25 and the lower sieve mesh having a mesh size of 35-45.
8. The application of the molasses-type corn flour according to claim 1 or the molasses-type corn flour prepared by any one of claims 2 to 7 in feeding livestock and poultry.
9. The application according to claim 8, characterized in that, When the livestock and poultry are laying hens or broilers, the method of using molasses-type cornmeal is as follows: replace 5-10 wt% of the traditional feed cornmeal in the basic daily diet with molasses-type cornmeal and then mix it evenly before feeding. When the livestock or poultry is pigs, the method of using molasses-type corn flour is as follows: replace 10-30 wt% of the traditional feed corn flour in the basic daily diet with molasses-type corn flour and then mix it evenly before feeding. When the livestock and poultry are ruminants, the method of using molasses-type cornmeal is as follows: replace 5-30 wt% of the traditional feed cornmeal in the basic daily diet with molasses-type cornmeal and then mix it evenly before feeding.