Determination of antimicrobial peptides activity
The condition of detecting antimicrobial peptides activities that produced by lactobacillus paracasei HD1.7 by agar diffussion assay were studied,the sample was Nisin.The optimal detecting conditions are as follows:No.2 medium,0.75% agar concentration,bacillus subtilis suspension concentration of 106cfu/mL.Under this condition,peptides activities is 1.6×104IU/g.