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Efficacy and effects of corn starch
Corn starch Corn starch, also known as six-grain flour, is a white to yellow powder that is commonly used in foods such as ice cream, meat products, and even vermicelli....
Efficacy and effects of corn starch
Corn starch Corn starch, also known as six-grain flour, is a white to yellow powder that is commonly used in foods such as ice cream, meat products, and even vermicelli....
Corn main by-product processing methods
By-product processing In the process of producing corn starch, corn starch, germ, residue, protein water and other intermediate products can be obtained, which can be used as by-products if processed. ...
Corn main by-product processing methods
By-product processing In the process of producing corn starch, corn starch, germ, residue, protein water and other intermediate products can be obtained, which can be used as by-products if processed. ...
Corn main by-product processing methods
By-product processing In the process of producing corn starch, intermediate products such as corn pulp, germ, residue and protein water can be obtained, all of which can be utilized as by-products if processed. The main maize by-products processing methods are as follows.(1) corn pulp: soak corn with sulfur dioxide solution counter-current, and finally pump out the soaking water containing 6-7% dry matter, which can be evaporated using a three-effect vacuum to concentrate it to a thick liquid containing 50% dry matter, called corn pulp. According to the chemical composition of corn pulp determination results are as follows: moisture 48 ~ 50% reducing sugar more than 5.5% ammonia content of more than 3.6%Inorganic matter more than 10% Ammonia nitrogen more than 0.9% Lactic acid more than 9-12%In addition to being used as a raw material for the cultivation of yeast and antimicrobial nutrients and the manufacture of fermen and inositol, corn pulp is also a good animal feed when mixed with recovered corn protein and coarse and fine residues.(2) Corn germ: the germ cleaned from the sieving section contains about 50-60% moisture, and it can be dried to a moisture content of 4% by a drum dryer or boiling machine. Usually three stages of drying are used, the first stage is dried until the germ contains about 35% moisture; the second stage is 10%; the third stage reaches the moisture content specified for the germ.The dried germ contains 45 to 50% oil. It has a higher oil content than soybeans (soybeans contain about 20% oil), so it is a very good oilseed. The crude corn oil obtained by the oil press is yellow in color and contains free fatty acids, which is then refined to obtain refined corn oil that can be consumed, and the oil cake can be used as feed.
Corn main by-product processing methods
By-product processing In the process of producing corn starch, intermediate products such as corn pulp, germ, residue and protein water can be obtained, all of which can be utilized as by-products if processed. The main maize by-products processing methods are as follows.(1) corn pulp: soak corn with sulfur dioxide solution counter-current, and finally pump out the soaking water containing 6-7% dry matter, which can be evaporated using a three-effect vacuum to concentrate it to a thick liquid containing 50% dry matter, called corn pulp. According to the chemical composition of corn pulp determination results are as follows: moisture 48 ~ 50% reducing sugar more than 5.5% ammonia content of more than 3.6%Inorganic matter more than 10% Ammonia nitrogen more than 0.9% Lactic acid more than 9-12%In addition to being used as a raw material for the cultivation of yeast and antimicrobial nutrients and the manufacture of fermen and inositol, corn pulp is also a good animal feed when mixed with recovered corn protein and coarse and fine residues.(2) Corn germ: the germ cleaned from the sieving section contains about 50-60% moisture, and it can be dried to a moisture content of 4% by a drum dryer or boiling machine. Usually three stages of drying are used, the first stage is dried until the germ contains about 35% moisture; the second stage is 10%; the third stage reaches the moisture content specified for the germ.The dried germ contains 45 to 50% oil. It has a higher oil content than soybeans (soybeans contain about 20% oil), so it is a very good oilseed. The crude corn oil obtained by the oil press is yellow in color and contains free fatty acids, which is then refined to obtain refined corn oil that can be consumed, and the oil cake can be used as feed.
Characteristics of corn starch
Characteristics of corn starch 1. Corn starch powder is delicate and smooth, which can better shape the ingredients intact, increase the luster, and steam a good taste.2. It is sticky...
Characteristics of corn starch
Characteristics of corn starch 1. Corn starch powder is delicate and smooth, which can better shape the ingredients intact, increase the luster, and steam a good taste.2. It is sticky...
The seventh step in making cornstarch
The seventh step in making cornstarch Centrifugal separation and dryingThe starch milk from the spin separator contains 78% moisture and can be sent directly to the starch sugar plant if...
The seventh step in making cornstarch
The seventh step in making cornstarch Centrifugal separation and dryingThe starch milk from the spin separator contains 78% moisture and can be sent directly to the starch sugar plant if...
The sixth step in making corn starch
The sixth step in making corn starch Protein separation and starch cleaningThe starch milk after separation of coarse and fine residues has a concentration of 6 to 8 BoM and contains about 11 to 14% dry matter. The chemical composition of the starch here is analyzed in the table below.As can be seen from the above table, the dry matter in the starch milk is mainly protein and water-soluble substances in addition to starch, so protein separation and starch cleaning must be performed.The separation of protein is generally done by flow separation, which is gradually changed to centrifuge separation due to the large area and low separation efficiency. However, it is required that the starch milk contains less residue to prevent the nozzles in the disc from clogging and causing mechanical vibration.After separating the protein crude starch milk must be cleaned. Most of the starch cleaning is done in the cleaning pool, but the cleaning time is long and the starch loss is large. Starch cleaning in modern corn starch plants is carried out with a cyclone separator, which is generally treated with a 9 to 14-stage cyclone separator. It is measured that the protein content of starch milk from the centrifuge is not more than 2.5%, and after the 9-stage spin-liquid separator treatment, the protein content in the finished starch can be reduced to 0.35%.
The sixth step in making corn starch
The sixth step in making corn starch Protein separation and starch cleaningThe starch milk after separation of coarse and fine residues has a concentration of 6 to 8 BoM and contains about 11 to 14% dry matter. The chemical composition of the starch here is analyzed in the table below.As can be seen from the above table, the dry matter in the starch milk is mainly protein and water-soluble substances in addition to starch, so protein separation and starch cleaning must be performed.The separation of protein is generally done by flow separation, which is gradually changed to centrifuge separation due to the large area and low separation efficiency. However, it is required that the starch milk contains less residue to prevent the nozzles in the disc from clogging and causing mechanical vibration.After separating the protein crude starch milk must be cleaned. Most of the starch cleaning is done in the cleaning pool, but the cleaning time is long and the starch loss is large. Starch cleaning in modern corn starch plants is carried out with a cyclone separator, which is generally treated with a 9 to 14-stage cyclone separator. It is measured that the protein content of starch milk from the centrifuge is not more than 2.5%, and after the 9-stage spin-liquid separator treatment, the protein content in the finished starch can be reduced to 0.35%.