• Syed Inayatullah Agha

• Shafique Ahmed

• Muhammad Asif

• Sara Naudhani

• Shah Jahan Shabir Ahmed

• Habiba Yar Muhammad

• Muhammad Shafee

Abstract

Rosmarinus officinalis L. is a perennial herb that belongs to the Lamiaceae family. It is used as a food flavoring agent, and well known medicinally for its powerful antibacterial and chemo preventive properties. Essential oils were extracted by hydro distillation at Arid Zone research Centre, Quetta, and antimicrobial effect of the oil were evaluated by applying on four different bacterial isolates using disc diffusion assay and measuring the diameter of zone inhibition (mm). The results exhibited that the essential oil of Rosemarium had effective antimicrobial potency against both gram positive and gram-negative bacteria.

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