A novel bacteriocin-like substance producing strain was screened from yellow-liquor samples by anaerobic isolation and scrip method and cylinder-dish method and was named CF10. The supernatant of CF10 culture have strong bacteriostasis activity against the gram-positive pathogenic bacteria and the gram-negative pathogenic bacteria and some fungi and microzyme. The strain was identified as Lactobacillus buchneri by morphologic characteristics and physiological-biochemical testing and molecular-biological tes...