What is Plant Preservative Mix (PPM)? Plant Preservative Mixture (PPM) is a broad-spectrum biocide for plant tissue culture. PPM™ is the ultimate solution for the endless fight against airborne, waterborne and endogenous microbial contamination. About The Vegetable Preservative Blend (PPM) PPM™ is a heat-stable biocide/preservative that can be used to effectively prevent or reduce microbial […]
