Preparation of microorganisms that are laid. Preparation of nitrile resin Then bring the bacteria enter into the test tube 3 tube silicate, nitrate nanam section into the tube just 250 and 1000 concentration.
Preparation of microorganisms that are prepared curing nisin then microorganisms put into a test tube and three tubes of nisin put a tube concentration and 250 in 1000.
Preparation of microbial incubation. Prepare nisin. Then microorganisms put into the tube ทดลองทั้ง 3 tube. The nisin concentration and just put tube 250 1000.