Bubble Egg Waffle Maker,Egg Waffle Maker,Hong Kong Egg Waffle Maker,Bubble Egg Waffle Maker Machine Guangzhou New Power Catering Equipment Manufacturing Co.,Ltd , https://www.gznewpower.com
Edible fungi strain preservation
The following two methods are generally used for preservation: the cryogenic cryopreservation method. This is the simplest method of preservation. It is to store the growth-free, contaminated slant tube in the refrigerator at a low temperature of 4°C to 6°C, and then to transfer it to fresh slant medium every 2-3 months. On the cultivation, continue to preserve. The other is liquid paraffin preservation. This method is in the beveled test tube to be preserved, inject sterile liquid paraffin in a sterile room, and inject wax to 1 cm above the slope. Then stuffed with a cork or rubber stopper, sealed with wax, upright placed in a dry place indoors, can be stored for more than one year.