The Huakan bioreactor can accurately regulate key factors such as temperature, pH value, and dissolved oxygen level. For example, bacteria usually grow well at 30-37 ℃, while mammalian cells are suitable for an environment of 37 ℃; For processes such as yeast fermentation that require acidic conditions, a stable pH environment is maintained through an acid-base regulation system; Meanwhile, aerobic organisms are ensured to obtain sufficient dissolved oxygen through methods such as ventilation, stirring, or pure oxygen supplementation. In addition, it will continue to supply nutrients such as carbon sources, nitrogen sources, and inorganic salts to meet the metabolic needs of organisms.

Mixing and Mass Transfer: In order to achieve uniform distribution of substances in the reaction system and avoid significant local concentration differences affecting reaction efficiency, a stirring system is equipped, which can be in the form of mechanical stirring or gas bubbling. This design promotes the effective transfer of oxygen, nutrients, and metabolites, especially in the gas-liquid mass transfer process, which is particularly important for aerobic fermentation.

Metabolic regulation: By accurately controlling environmental parameters such as dissolved oxygen levels and feeding rates, organisms can be guided along predetermined metabolic pathways, such as inducing the synthesis of target products and inhibiting the production of unnecessary by-products, thereby improving product yield and purity. For example, in the process of ethanol fermentation, reasonable control of sugar concentration can avoid the accumulation of excessive by-products.

Aseptic operation: In order to prevent contamination by miscellaneous bacteria and ensure the purity of the culture, the bioreactor uses high-temperature sterilization (such as 121 ℃ steam sterilization) or filtration sterilization (such as air filters) to maintain the sterile state of the system.

Precautions for using Huakan bioreactor:

1. Compliance with sterile operating procedures

-Strict adherence to aseptic operating procedures is necessary to prevent external contamination and cross infection within the reactor. This includes using aseptic techniques for operation, regularly cleaning and disinfecting equipment, and regularly inspecting and replacing consumables.

2. Maintenance of parameter stability

-During the operation, attention should be paid to maintaining the stability of parameters such as temperature, pressure, stirring speed, and ventilation in the reactor to ensure the normal progress of the biological process.

3. Avoid introducing interfering factors

-When adding culture medium or other substances, attention should be paid to avoiding the generation of bubbles and vigorous stirring to avoid affecting biological processes; When collecting samples or performing other operations, attention should also be paid to avoiding interference with biological processes, such as excessive stirring or ventilation.

4. Safety performance check

-Before use, it is essential to check the safety performance of the equipment. Ensure good sealing of the equipment, normal operation of mechanical components, and no abnormalities in power wiring to avoid potential hazards.

5. Preparation of emergency response measures

-Prepare emergency response measures: While operating the bioreactor, remain vigilant and prepare measures to deal with emergency situations at all times. Familiar with emergency shutdown procedures, anti electric shock and first aid methods, as well as emergency information in the laboratory.

6. Preprocessing and post-processing specifications

-Before operation, the bioreactor should be disinfected and cleaned to avoid contamination and cross infection; After use, the equipment should also be cleaned and maintained according to the correct procedures to extend its service life and ensure its effectiveness for the next use.