On November 16-17, 2019, the Enzyme Engineering Academic Seminar hosted by the National Key Laboratory of Microbial Metabolism was successfully held at the School of Life Sciences, Shanghai Jiao Tong University. The conference was jointly organized by Shanghai Jiao Tong University, the Joint Laboratory of Metabolism and Development, and the Shanghai Society of Bioengineering.

The conference conducted in-depth discussions on cutting-edge fields such as enzyme engineering research theory, strategies, technical methods, and translational applications, bringing a total of 20 exciting presentations. More than 200 domestic and foreign experts, scholars, frontline researchers, graduate students, and others participated in this conference.

(Mr. Sheng Haoyue, Technical Director of Shanghai Qiaofeng, is ranked first on the left side of the first row.)

Invited by the State Key Laboratory of Microbial Metabolism of Shanghai Jiaotong University, Shanghai Qiaofeng Industrial Co., Ltd. took the low-temperature spray drying technology at home and abroad to participate in the academic seminar of enzyme engineering.
Enzymes are proteins or RNAs produced by living cells that exhibit high specificity and catalytic activity towards their substrates. In short, the essence of an enzyme is an active protein. Without activity, enzymes lose their value. In reality, many enzymes lose their activity at high temperatures, such as in animal tissues where the optimal temperature for various enzymes is 37-40 ℃, and in microorganisms where the optimal temperature for various enzymes is 25-60 ℃.

Qiao Feng broke through the traditional thinking of high-temperature evaporation and innovatively put forward the idea of removing water from the air, so that the air entering the spray tower can become dry air. During the process of atomization drying, the dry air carries the solvent away, reducing the evaporation of solvent, and realizing low-temperature drying.
Qiao Feng's low-temperature spray technology is an advanced technology at home and abroad, which fully utilizes the following technical principles:
1. Dew point difference principle
At a fixed air pressure, the temperature at which gaseous water in the air reaches saturation and condenses into liquid water is called the dew point.At a certain air pressure, the lower the temperature, the lower the dew point, and the higher the temperature, the higher the dew point.
In the spray drying system, the principle of dew point difference is used to condense the gas, reduce the air temperature, reach the air dew point, separate out the moisture in the air, dry the air, heat the cold and dry air before entering the spray tower, increase its dew point, become unsaturated gas, and increase its water carrying capacity. During spray drying, the unsaturated gas will carry a part of the solvent, reduce the evaporation of the solvent, so as to achieve low-temperature drying;

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2. Principle of Physical Dry Wind
In order to achieve the ideal dry air state, the condensed air is treated again, allowing the air to pass through the dry molecular material with water absorption *, and the dry molecular material adsorbs the moisture in the air, achieving the purpose of re drying. The dry wind state after secondary physical treatment is more ideal and has a stronger carrying capacity.The automatic dehumidification system equipped with drying molecular materials can ensure continuous operation of the machine.

3. Closed loop circulation system
The low temperature spray drying system adopts a closed cycle mode to recycle the gas and reduce the wet air inhaled from the outside. The moisture content of the external wet air is high. The closed cycle system reduces the solvent evaporation pressure and better realizes the drying of materials;

35 ° low temperature spray drying_Application in industrial production of enzymes
Qiaofeng can achieve 35 ° low temperature spray drying, which is a great blessing for thermosensitive enzymes,Instant powder production, continuous production, uniform drying, industrial scaling upWaiting for advantages can definitely bring qualitative changes to enterprise production!!!
Qiao Feng's low-temperature spray technology provides a new process choice for the industrial production and application of enzymes. Once thrown out at the enzyme engineering academic seminar, it caused extensive and enthusiastic discussions, and experts and scholars came to consult in an endless stream.
Executive Director of the Chinese Society of Biochemistry and Molecular Biology, Director of the Enzymology Professional Committee of the Chinese Society of Biochemistry and Molecular Biology, National 973 Program Scientist,Professor Feng YanThe principle of Qiao Feng's low-temperature spray technology was inquired in detail. When he learned that Qiao Feng was a domestic manufacturer with low-temperature spray drying technology, he expressed great recognition and encouraged the technical director of Qiao Feng in Shanghai盛浩月先生We hope that we can continue to maintain the spirit of innovation in the future, and make China's industry bigger and stronger. We express our hope that low-temperature spray drying technology will be widely used in the field of enzyme engineering.
Director of the former State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Vice President of the College of BioengineeringProfessor Xu JianheMuch attention was paid to the production capacity, production cycle and industrial production expansion of Qiao Feng's low-temperature spray dryer. Qiao Feng's technical director took out early cases and conducted in-depth discussions with Professor Xu Jianhe. Professor Xu Jianhe said that deep cooperation could be carried out later.

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