Plant Preservative Mixture (PPM), is a broad-spectrum biocide/ for plant tissue culture. PPM™ is the ultimate solution to the never-ending struggle against microbial airborne, waterborne and endogenous contamination.
PPM™ is a heat stable preservative/biocide which can be used to effectively prevent or reduces microbial contamination in plant tissue culture.
Despite the most stringent use of sterile techniques, the contamination of plant cell and plant tissue cultures remain a persistent problem that can result in losses ranging from small number of cultures to the loss of whole batches.
So just to test the ability of the PPM to resist microbial contaminants - I dosed two plates of media, one with and one without, with several drops of actively aerated compost tea. In 7 days the plate without PPM was entirely overrun with fungi and bacteria - the plate with PPM has had zero visible growth at 1ml/l. Every culture I have placed in PPM media - has had no problems with unwanted contamination. Some magic stuff here.
I am very grateful to have found PPM. In the past I was averaging a 70% contamination rate. Since using PPM I'm holding steady at a 5% contamination rate.
I'm new to micropropagation. I was concerned about contaminated cultures. I've use PPM in the first several media batches and all have been contamination-free. For me, PPM is a required ingredient in a media formulation.
I am a beginner hobbyist in tissue culture, still experimenting to get reliable results. There is a notable improvement in contamination rates when using PPM. I recommend it and will continue to use it in my culture medium.
Had fungal growth in my latest batch of water-germinated VFT seeds. After rinsing the seeds w/0.5% bleach and then plating it into MS+PPM, they germinated without any contaminants. PPM works.
Talk about making tissue culture a breeze!!! I haven't had any contamination problem since I started using ppm! Good prices and fast shipping! Keep up the awesome work!
We use PPM everyday in our business’s tissue culture division. A high throughput approach is capped off by PPM cementing the successes and helping convert them to profit. Thanks.
Quick shipping and amazing customer service as well as competitive pricing. Highly recommended to anyone looking to reduce the contamination possibilities. Opened up my package and they even tossed in a free shirt, only thing I wish is that it would have been a little bigger size so I could rep it out and about.
Have used another companies ppm and excited to try out this one from other reviews. Got to me super quick and was securely shipped with no damage.