Figure 3From: Chemical composition, antimicrobial and antibiofilm activity of the essential oil and methanol extract of the Mediterranean cypress (Cupressus sempervirens L.) Image of intravenous infusion tube colonized by Klebsiella pneumoniae biofilm: from left to right, (A) not colonized negative control, (B) treated positive control, (C) treated with 500 μg/ml methanol extract of C. sempervirens , (D) treated with 500 μg/ml Eo of C. sempervirens and (E) treated with 500 μg/ml ceftriaxone as reference antibiotic. Back to article page