FIG. 5.

Degradation of H₂O₂ by cultures of L. jensenii CECT 4306. Cultures were grown for 16 h in MRS medium prior to the addition of H₂O₂ (2.5 mM). Results shown are for replicate cultures that were supplemented with 2 mM Fe³⁺ (▪) or grown without supplements (×), the same unsupplemented cultures to which 2 mM Fe³⁺ and H₂O₂ were added with a 30-min interval (▴), and uninoculated MRS medium with (♦) and without (•) added Fe³⁺. Error bars show standard deviations.