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Hemin effect on growth of L. lactis strains PJ4700 (left) and PJ4662 (right). (A) SA agar plate + erythromycin (5 μg/ml). (B) SA agar plate + hemin (5 μg/ml) + erythromycin (5 μg/ml). (C) SA agar plate + nisin (16 ng/ml) + erythromycin (5 μg/ml).
