Corn Starch

Corn Starch Process



The purpose of cleaning is to remove iron, sand and stone from corn to ensure normal operation of equipment and improve the quality of starch. Corn is conveyed by bucket elevator into the classifying screener and magnetic separator in turn for screening and metal removing. Properly cleaned corn enters the jigging machine for wet destoning.
Main equipment: Rotary Magnetic Separator, Plate-type Magnetic Separator, Rotary Screener.


Sulfite Solution Preparation

Sulfite solution is commonly prepared from sulfur combustion. Tail gas concentration reaches emission requirements after three-stage washing treatment. Liquid sulfur dioxide or sodium bisulfite can also be used as raw materials for acid preparation to meet with higher local standards.



Steeping is the key process of corn starch production. It directly affects yield and quality of starch. The purpose of steeping is to change the structure and physical and chemical properties of endosperm, extract soluble substances, and inhibit microbial growth.


Corn Steep Liquid Concentration

After removing impurities, the steeping liquid containing solid content enters secondary heat evaporation system for evaporation and concentration until the solid content is no less than 43%. The concentrated solids are added to fiber and dried together to be used as protein feed. The evaporator uses secondary steam from tube bundle dryer as the heat source without live steam consumed.
Main equipment: Falling Film Evaporator, Multi-effect Evaporation System


Corn Crushing and Germ Separation

The steeped corn enters wet corn storage hopper through conveying pump, and then enters the 1st stage degerming mill to be cracked into 4~6 pieces. In the process 75%~89% of corn germ is separated while 20%~25% of total starch is extracted. The cracked corn is pumped to the 1st stage germ cyclone. Germ flowing out from the top of cyclone goes to the washing system while the bottom outflow enters the 2nd stage degerming mill to be further cracked to 10~12 pieces.
Main equipment: Degerming Mill, Washing Cyclone


Fine Grinding

After separating the germ by the 2nd stage germ cyclone, the slurry goes through bend screener to get crude starch milk, which merges with the crude starch slurry separated by fiber washing and then enters the starch separation process. The oversize products enter the pin mill for fine grinding for maximum separation of the free starch from the fiber.
Main equipment: Pin Mill, Bend Screener


Fiber Washing

Slurry after fine grinding enters the fiber washing tank, where it is sent to the 1st stage bend screener together with the washing water. The oversize products pass through 6 stages bend screeners for countercurrent washing. Washing water is added to the 6th stage bend screener to carry free starch washed down to move forward step by step until it arrives at the fiber washing tank, and then merges with the slurry after fine grinding, enter the 1st stage bend screener to separate the crude starch milk.


Starch Separation and Refining

After impurities are removed by sand remover and rotary filter, crude starch separated from the screeners enters the gluten separator, and the bottom outflow from the gluten centrifugal separator is sent to the washing cyclone for washing and refining.
Main equipment: Centrifugal Separator, Washing Cyclone


Starch Drying

The refined starch milk is dewatered by scraper centrifuge, and is then dried by flash dryer. The finished starch is sent to the packing plant.
Main equipment: Flash Dryer


Protein Drying

Gluten contained in the discharged overflow is sent to the gluten concentrator, and then dewatered by vacuum drum filter or plate-and-frame filter press.
Main equipment: Tube Bundle Dryer


Germ Dewatering and Drying

The germ flowing out from the top of 1st stage germ cyclone is washed by three stages of bend screener by which wet powder particles adhering to the germ are washed away. Germ then enters the screw press for dewatering, and the tube bundle dryer for drying. Product germ is sent to warehouse for packing after cooling.
Main equipment: Screw Press, Tube Bundle Dryer


Fiber Drying

The washed fiber is dewatered and then dried by tube bundle dryer. The dried fiber feed is crushed and sent to the warehouse for packaging after cooling.
Main equipment: Screw Press, Tube Bundle Dryer

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Myande News & Insights

3,000TPD Corn Starch Milk Production Line

Following the successful construction, installation and commissioning of its 1st 3,000TPD corn starch milk production line supplied by Myande as a turnkey project, Qiqihar Biotechnology Co., Ltd entrusted Myande again for the supply of its 2nd 3,000TPD corn starch milk production line.   Before the conclusion, the contract for the first line, the customer's technical and managerial teams inspected Myande manufacturing facilities and were pleased with what they saw. They were impressed by Myande’s management concept, strict quality management, and persistent pursuit for improvement. Consequently, they chose Myande to build a 1st 3,000TPD corn milk processing line. As this production line was to provide intermediate material for downstream processing of crystalline sugar, liquid sugar and monosodium glutamate, reliability and desirable quality of the product is absolutely important. Both during commissioning and actual production, Myande's automatic control system met with complete satisfaction.

Annually 100,000 Tons F55 Fructose Production Line

On 28 May, 2017, Anhui Pinqing 100,000T/A F55 fructose production line undertaken by Myande was successfully put into trial operation. On June 2017 the line started to yield qualified fructose which meets Coca-Cola quality standard. Since then, the complete plant has been in smooth operation with stable product quality.   Myande provided integrated services including design, manufacture and installation of main equipment, including evaporation, ion exchange, chromatographic system of the entire production line as well as design, supply, and installation of the automatic control system.   Established in 1999 in Taiwan, Pinqing Biological Technology Co., Ltd specializes in research & development, production, and sales of high fructose starch syrup. It is the first enterprise to produce syrup with fructose content of 55% and above in mainland China. Its main products include F42, F55, F90 and various other fructose products.   As long-term partner of Pinqing, Myande has undertaken quite a few engineering projects for Pingqing, which include supply and installation of all custom-made equipment in the syrup conveying system for Kunshan Pinqing, evaporation system for 100,000T/A F55 fructose, F00, F42, F55 syrup project, ion exchange and chromatographic system for 100,000T/A F55 fructose project, installation of DCS, MCC, instrumentation and cables for 100,000T/A F55 fructose project.   After years of research & development and market application of starch sugar technology, Myande has formed a complete product design system capable of meeting highly individualized customer requirements. Myande is committed to providing integrated solutions in the fields of liquid glucose, crystalline glucose, maltose syrup, maltodextrin and fructose syrup.  

3,000TPD Corn Starch Turnkey Plant

After Heilongjiang customer and Myande Group cooperated in the core equipment of 3,000TPD corn starch project, in the extraordinarily cold winter of 2017, the commissioning of the equipment line was carried out. Through unremitting efforts of customer and Myande engineers, this 3,000TPD corn starch production line started running successfully.   Based on automation operations of the corn feeding circulating water, the automatic feeding system, the soaking tank corn level, the monitoring of tank liquid level, the monitoring of all the motors and pneumatic valve instrument interlock, under skillful control of customer and through the full cooperation of Myande engineers, after 1 hour, the project started running normally and finished starch milk has entered the following liquid sugar section.   Actually, the temperature of winter in Heilongjiang Province is close to 30 degrees below zero, and working conditions of plant are also very hard, which are all the challenge for Myande's on-site commissioning team. In order to complete this project successfully, all team members with strong fighting spirit stuck to the work site of commissioning.   After more than ten years' development, Myande automatic control department has formed a professional team composed of more than 30 engineers, and has completed more than 200 automatic control projects in the field of starch, edible oil, fermentation, energy saving and evaporation. Through these projects, the unique qualities of Myande’s automatic control have been gradually formed.   Combination of automation and process Every automation engineer of Myande will be involved in the process design, on-site installation, project commissioning and other sections.   Comprehensive technical ability Myande automatic control includes low voltage electrical design, PLC system design, DCS system design, electrical installation design, on-site commissioning of electrical and automatic control system and other parts, which can provide one-stop electrical and automation solutions for customers to save time and improve efficiency.   Integration of automation and 3D design Myande’s electrical material list is formed after the 1:1 3D design is finished, which can eliminate waste materials, reduce the purchasing cycle, and reduce investment.   Guarantee capability of project implementation All the projects of Myande have standard project management process. At the same time, each step of the project has record, tracking and feedback, which greatly guarantee the quality and punctual delivery of the project.   Perfect after-sales service system Myande automatic control system provides customers with a lasting and life-long after-sales service to solve the worries of customers.  

How to Choose the Right Manufacturer of Corn Starch Plant Equipment

Corn starch is a versatile and widely used ingredient in various industries including food, pharmaceutical, paper, and textiles. The demand for corn starch has been growing steadily, making it a profitable business opportunity. However, for entrepreneurs looking to venture into the corn starch processing industry, choosing the right manufacturer of equipment is critical to ensure the success of the enterprise. In this article, we will discuss the factors to consider when selecting the right manufacturer of corn starch plant equipment.   Expertise The manufacturer's technical expertise is an important factor to consider. The manufacturer should have a team of experienced engineers and technicians who are knowledgeable about corn starch processing and can provide technical support and guidance throughout the project. Additionally, the manufacturer should use the latest technology and equipment to ensure the highest quality products.   Quality The quality of the equipment is the most essential factor to consider when choosing a manufacturer. Investing in high-quality equipment ensures that the machines last long, reducing maintenance costs and downtime. It is crucial to select the manufacturer who uses top-quality materials and components, adherence to international standards, and has a strong track record of producing reliable equipment. A reputable manufacturer will provide proof of quality certifications, third-party inspection reports, and references from satisfied customers.   Customization Every corn starch processing facility has unique requirements and specifications, and hence the right manufacturer should be able to customize the equipment to meet the specific needs of the client. Customization also ensures that the equipment maximizes efficiency while minimizing production costs. The manufacturer should be able to provide design solutions, technical support, and flexibility to make adjustments according to changing requirements. Price and Delivery Time Price and delivery time are also important factors to consider when choosing a manufacturer of corn starch plant equipment. The manufacturer should offer competitive pricing without compromising on quality, and should be able to deliver the equipment within a reasonable timeframe. However, it is important not to compromise on quality in favor of a lower price.   After-sales Service A manufacturer's after-sales services are crucial in ensuring the smooth running of the corn starch processing plant. After-sales services include installation, commissioning, training, and maintenance support. The manufacturer should have a team of experienced technicians who can provide 24/7 remote support, on-site repair and maintenance, spare parts, and upgrade services to minimize downtime and increase productivity.   Reputation A manufacturer's reputation speaks volumes about the quality of their equipment and services. A reputable manufacturer has positive reviews and feedback from satisfied customers. Researching the company's history, customer reviews, and ratings on independent review sites can give valuable insights into their reputation.   Technology and Innovation The corn starch processing industry is constantly evolving, and manufacturers should keep up with the latest technology and innovation to ensure that their equipment remains competitive and efficient. A manufacturer that invests in research and development, and has a team of engineers and designers to develop innovative solutions, is likely to produce better quality equipment. Corn starch processing requires a significant investment in equipment, and selecting the right manufacturer is crucial to ensure that the investment pays off. A reliable manufacturer should provide high-quality equipment, customization options, competitive pricing, excellent after-sales services, and a good reputation. Investing in the right equipment leads to increased productivity, reduced downtime, and lower maintenance costs, ultimately leading to higher profits.   In addition to the factors mentioned above, other considerations when choosing a manufacturer include the company's experience and expertise, the range of equipment offered, and the geographical location. It is also essential to consider the manufacturer's environmental policies, sustainability practices, and social responsibility. These factors can add value to the business and improve its reputation.   Myande Group provides complete equipment and engineering solutions for the corn starch processing industry. With over 20 years of experience in the industry, Myande Group offers high-quality equipment, customized solutions, competitive pricing, excellent after-sales services, and a proven track record of success. Myande Group invests heavily in research and development, innovation, and sustainability practices, making it a reliable and responsible partner for businesses looking to venture into the corn starch processing industry.   Conclusion Choosing the right manufacturer of corn starch plant equipment is essential for anyone venturing into the corn starch processing industry. Expertise, quality, customization, price and delivery time, after-sales service, reputation, technology and innovation are critical factors to consider when selecting a manufacturer. Researching the company's history, customer reviews, and customer cases can provide valuable insights into their reputation. Myande Group offers complete equipment and engineering solutions for corn starch processing industry, making it an excellent choice for businesses looking for reliable and responsible partners.

600,000 T/A Wheat Starch Deep Processing Project Successfully Launched

Recently, the 1st phase of Henan Hanyong's 600,000 tons (annual output) wheat starch deep processing project, designed by and installed under the guidance of Myande, has been smoothly commissioned, and contract for the 2nd phase was signed with Myande, marking the further extension of the domestic wheat deep processing industry chain.   Henan Hanyong Biotechnology Co., Ltd. is one of the leading enterprises in agricultural industrialization of Henan province. It mainly produces edible alcohol with strong competitiveness and a high reputation in the market.   Starch deep processing is one of Myande’s important business segments. After years of technology and experience accumulation in the field of starch deep processing, Myande has formed a complete set of production design system with a high degree of automation, stable operation and high product quality. In recent years, Myande has successfully established long-term strategic cooperative relations with multiple famous domestic and international enterprises.   Combining with Hanyong's own industrial advantages, after in-depth research, efficient communication and repeated demonstrations, Myande has designed a set of production plan (as shown in the following figure) specially for the customer, and it can not only produce gluten and wheat starch, but also make better use of the mixed nutrient solution of process water and pentosan to produce alcohol, which will bring considerable economic benefits.   The 1st phase project is a 500tpd wheat flour processing project, including a 3tpd gluten drying system and a 12tpd starch drying system. From beginning to end, the whole project lasted for 10 months. During the whole implementation process, from the plant layout planning, process design, intelligent automation design in the early stage, project service in the mid-term, to the installation, commissioning and training in the post stage, Myande’s rigorous, attentive and efficient one-stop service has won the unanimous praise of Hanyong. Through the joint efforts of Myande and Hanyong employees, a brand-new starch deep processing production line was successfully commissioned and started running smoothly, and all indicators were superior to the technical level of the same industry.   In view of the pleasant cooperation in the 1st phase, Hanyong decided to cooperate with Myande again to expand its wheat starch deep processing output, and signed the 2nd phase project with Myande resolutely, namely 5t/d gluten drying system and 20t/h starch drying system. After which, Hanyong will become a high-quality gluten high-value conversion base with "the largest scale, the best environment protection and the highest level of research and development" in the industry in Asia.  

Myande Awards 2022 “Spring Sunshine” Scholarship

In order to motivate employees' children to study hard and to enhance employees’ sense of belonging and happiness, on August 19, Myande held 2022 Myande Spring Sunshine Education Scholarship ceremony. Mr. Wangmu, vice chairman and Mr. Mao Weijiang, director in charge of manufacturing, participated in this ceremony and on behalf of the company presented scholarship stipends to children of Myande employees who are enrolled by four-year universities this year.   In his speech, Mr. Wang highlighted that Spring Sunshine Scholarship is one of several company welfare benefits. It represents the company’s vision of moving forward with its employees and creating a better future together, and it reflects the company's care for the education of its employees' children and its high sense of social responsibility.  

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