Fig. 4. The growth of strain HW5 in LB medium with different concentration of commercially available γ-terpinene. The growth (OD₆₀₀) was monitored every 3 h for 36 h. Concentrations of γ-terpinene were added to the LB medium as follows: 0 g L⁻¹ (■), 0.5 g L⁻¹ (●), 1 g L⁻¹ (▲), 2.5 g L⁻¹ (▼) and 5 g L⁻¹ (◀).