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Table 3 Effect of trypsin, catalase, and pH 6.5 on the antagonistic property of cell-free supernatant isolates obtained from second fermentation on indicator organisms

From: Screening and molecular identification of potential probiotic lactic acid bacteria in effluents generated during ogi production

Indicator organisms

Isolates

Untreated supernatant

Trypsin treated

Catalase treated

pH treated

Escherichia coli DMST 4212

AA101

+++

−

+

+

AA106

++

−

+

+

AA107

+++

−

+

+

BB101

+++

−

+

++

BB102

+++

−

+

++

BB104

++

−

+

+

BB101

++

−

+

+

CC102

+++

−

+

++

Staphylococcus aureus DMST 4745

AA101

++

−

+

+

AA106

++

−

++

++

AA107

+++

−

+

++

BB101

++

−

+

++

BB102

++

−

+

+

BB104

++

−

+

+

BB101

++

−

+

++

CC102

+++

−

+

+

Salmonella typhimurium PSU.SCB.16S.11

AA101

++

−

+

+

AA106

++

−

+

+

AA107

+++

−

+

++

BB101

++

−

+

++

BB102

++

−

+

+

BB104

+++

−

+

+

BB101

++

−

+

++

CC102

++

−

+

+

  1. (−) no zone of inhibition; (+) zones of inhibition < 7 mm in diameter; (++) zones of inhibition between 7 to 10 mm, (+++) zones of inhibition of > 10 mm. AA: effluents of the second fermentation in ogi production from maize grains, BB: effluents of the second fermentation in ogi production from sorghum grains, CC: effluents of the second fermentation in ogi production from millet grains