What are the deep processing technologies of corn?

China is the second largest corn producer in the world, and its processing industry has broad prospects. However, at present, there is an unbalanced structure of "big raw materials" and "small processing" in China's corn processing industry, and the actual utilization rate of corn and its nutrients is very low. It is an important task for China's corn industry to make full and comprehensive use of corn raw materials, improve the utilization rate of raw materials and realize clean production. Most of the patents of corn in China are related to food, while the patents of corn deep-processed products such as citric acid, monosodium glutamate, corn starch containing modified starch and corn alcohol account for a small proportion. However, corn deep processing products will be the development direction encouraged by the state. Corn: Little things make great things. Corn has always been used as food and feed. It is an important traditional food and is known as the "king of feed". In the tenth five-year development plan of food industry jointly issued by the State Planning Commission, the State Economic and Trade Commission and the Ministry of Agriculture, "three meals a day" instant nutritious food is regarded as the focus of developing corn products. In addition to developing new corn food, corn can also be deeply processed to produce corn starch, modified starch, starch sugar, alcohol, monosodium glutamate, citric acid, fat substitute, dried corn flour, corn oil, feed and other products. Now, corn has become an important industrial raw material. Because the starch content in corn seeds is as high as 70% or more, the prospect of deep processing is broad. The main products are starch sugar, modified starch, organic chemicals and so on. Starch sugar is gradually replacing the consumption of sucrose because of its special quality. Modified starch can change the properties of starch through effective methods, which can meet the needs of many industries. At present, it has been widely used in papermaking, textile, food, medicine and other industries. Organic chemicals are derivatives of corn processing, and the largest output is fuel ethanol, which is mainly used as automobile fuel. Due to the limited oil resources and renewable corn resources, this product has attracted the attention of many countries. Therefore, from the development trend of international corn industry, corn processing in developed countries such as the United States has moved towards automation, refinement and comprehensive utilization. The main features are high technology maturity, advanced technology and high degree of enterprise intensification. As a major corn production province, Jilin has greatly improved the level of corn deep processing, and has great development space and production potential. However, there is still a big gap with the international advanced level in terms of technical level and enterprise status. Corn deep processing technology: rapid development and small advantages. In domestic patent applications, the number of patent applications related to corn processing is on the rise, which shows that China pays more and more attention to corn processing, and the research and development on how to improve the added value and comprehensive utilization of corn products is in a booming stage. Among them, Jilin Province has the largest number of applications, which shows that Jilin Province, as a major corn province, has a strong research on corn. However, domestic applications in this field are very scattered, and the units with the largest number of applications have only applied for four patents, and no dominant enterprises have yet formed. From the technical hotspot, corn is the most patented food. There are many patents for deep processing products in China, and the number is increasing year by year, which shows that the domestic demand for corn deep processing technology is increasing. However, through the statistics of foreign corn processing patents, it is found that the number of patent applications for corn deep processing began to increase gradually in the early 1970 s, which shows that at this time, countries fully realized the importance and urgency of corn deep processing, vigorously developed the development potential of this cash crop, and joined the research army one after another. With the continuous investment of countries in the research and development of corn starch deep processing technology, the number of applications reached the highest in history in the early 1990 s, and then the total number of applications decreased slightly, and has remained relatively stable since then, marking that the technology has entered a mature stage. The United States and Japan are the absolute leaders of corn deep processing technology, and the technical strength of Britain, Germany and the former Soviet Union is equivalent to that of China. This is extremely disproportionate to China's position as the second largest corn producer. The technical hotspots of corn deep processing mainly involve corn harvesting machinery, various foods made from corn, sweets, cakes and drinks, corn feed, corn protein, the application of corn in medicine, corn processing, the preparation of corn starch, corn fermentation and so on. The technology of producing ethanol from corn is not only a research hotspot in various countries, but also the development direction of technology in the future. Expert advice: learn more and develop more. Through the statistical analysis of the technology in the field of corn deep processing, experts believe that the future development of corn deep processing industry will still focus on introduction, absorption, digestion and innovation, so as to rapidly improve the technical level and production capacity. At the same time, learn from foreign advanced technologies, vigorously develop applicable technologies, make full use of advantages, select areas with strong technical strength, implement key breakthroughs, and quickly form independent intellectual property rights. When learning from foreign patent technology, we should focus on the patents of the United States and Japan. Because there are many patent applications filed by American companies in China, it is suggested that domestic companies pay more attention to the patents of American companies such as NAT Starch & Chem Investment, Cpcintincdupontdenemoors & COEI, and Japanese companies such as Takeda Chemind Ltd and Kyowahakkogyokokk.