Identification and Screening of Bacteriocin-producing Tetragenococcus halophilus
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Abstract:
Twelve strains lactococcus was isolated from the traditional Chinese soy. the physiological and biochemical characteristics and the 16SrDNA sequence of the screened strain were then analyzed, based on which the strain was identified as Tetragenococcus halophilus. The supernatant of WZ-3 strain eliminate the organic acids exhibited strong antibacterial activity against the gram-positive and gram-negative bacteria. The antibacterial activity decreased slightly after treatment with pepsin and trypsin, therefore, we think the strain was a bacteriocin-producing Tetragenococcus halophilus.
