0.2μm Weldable EPTFE Membrane For Edible Fungus Spore Bag Garden Supplies

Product Specification

With the advancement of technology, many places now use techniques for edible mushroom ,which involves placing the culture medium into sealed plastic bags, followed by sterilization, inoculation, and fungus growth, ultimately forming mushroom sticks that produce mushrooms.

Since the sealed mushroom bags do not allow gas exchange between the inside and outside, fresh air from the outside cannot enter to supply the mycelium's growth needs, and waste gas produced by the metabolism of mycelium inside cannot be expelled. Toxic substances accumulate inside the bag, and the heat produced by metabolism cannot be promptly discharged, leading to a harsh environment for fungus cultivation inside the bag. This results in hindered growth of the fungus strain, aging of the mycelium, and poor stress resistance.

To ensure normal growth of the edible mushroom strain and efficient production capacity, gas exchange between the inside and outside of the bag is necessary while also preventing bacterial contamination. Typically, breathable holes are made on the mushroom culture bags and breathable membranes are welded to allow free gas exchange between the inside and outside of the bag while blocking bacteria.

The micro-pore size of this breathable membrane needs to be controlled below 0.5μm to prevent bacterial invasion. Moreover, suitable breathable membranes can effectively suppress the respiration of edible mushrooms like bisporus mushrooms, delaying maturity and aging, and helping maintain their post-harvest quality. By improving the energy metabolism of post-harvest edible mushrooms and ensuring sufficient energy supply, their post-harvest aging is delayed. This indicates that breathable membranes not only promote mycelial growth during the cultivation stage but also play an important role in the post-harvest preservation stage.

XINNA's weldable ePTFE membrane

XINNA recommends the PTFE breathable membrane, which is also known as the PTFE bacterial filtration membrane or PTFE sterile sealing breathable membrane. It is made from PTFE polymer through a special process into a breathable sealing membrane with properties of bacteria isolation and hydrophobicity. It can vent and depressurize effectively, preventing bacterial entry while ensuring an adequate supply of oxygen, thereby promoting the healthy growth of cultures. With high air permeability, heat resistance, and suitability for various high-temperature sterilization processes, it ensures stability and reliability during microbial culture, guaranteeing the quality and safety of the cultivative bag.

Specifications:

Advantages:

• The uniform distribution of micro-pores allows for waterproofing and breathability while effectively blocking dust.
• It has good air permeability, allowing for sealed filtration while still enabling the free flow of air.
• With superior hydrophobic properties, it can quickly restore breathability after contact with water, oil, and other liquids, making it suitable for sealing and sterilizing various types of tissue culture bottles.
• It can balance pressure, preventing air and moisture around the sealed components from entering the system, thereby protecting the integrity of the seal.
• It is resistant to ultraviolet rays and has strong chemical inertness, withstanding high temperatures up to 135°C. The membrane can be repeatedly sterilized at high temperatures and used for gas filtration.
• It has strong corrosion resistance, maintaining its filtering and sterilizing performance in various harsh environments, keeping sensitive equipment parts safely exposed outdoors.
• Available in multiple specifications to meet the application needs of different scenarios.

Applications :

• Culture media cap
• Culture vessel
• Cell shaker flask
• Edible fungi spore bag