Culture Tubes 5mL Capacity with Attached Dual Position Cap Sterile PP PS Tissue 5ml Cell Culture Tube with Cap Graduated

Working Principle:

A shaker uses continuous oscillation (circular or orbital) to agitate the culture medium within the tube, significantly increasing the contact area between the liquid and air. This allows for efficient gas exchange (oxygen supply), while also keeping the bacteria suspended and nutrient distribution uniform.

Function of Tube Caps: Tube caps are typically designed to be breathable or have adjustable breathability, preventing contamination from external bacteria while allowing air to enter.

Common cap types include:

Breathable caps: Contain a built-in hydrophobic, breathable membrane that allows gas exchange while blocking microorganisms and droplets.

Press/Snap Caps: Provide a good seal and can sometimes be manually loosened to adjust the airflow.

Screw Caps: Provide the best seal and can be manually loosened to leave a gap for ventilation.