Nutra-pharmaceutical efficacy appraisal of Lavandula stoechas leaves extracts in different solvents

Asad Rauf, Syeda Mona Hassan and Sania Rafique

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Present study was conducted to determine the antioxidant and antibacterial properties of L. stoechas leaves. Four solvents (80% methanol, 80% ethanol, 100% methanol and 100% ethanol) were used to extract the phytochemical, antifungal, and antioxidant components of L. stoechas leaves. In an 80% methanolic solvent, L. stoechas Leaves produced the highest extract yield (40.1 g/100g DW). Antioxidant examination of L. stoechas Leaves extracts in terms of total phenolic and total flavonoid contents revealed that the 80% methanolic extract had higher total phenolic content (33.2 mg GAE/g DW), as well as the higher total flavonoid content (46.5 mg CE/g DW. The DPPH radical scavenging activity and reduction power were used to assess antioxidant capacity. According to the findings, the 80% methanolic extract showed low potential and strong radical scavenging activity. The antimicrobial properties of L. stoechas leaves were determined by disc diffusion method. The antibacterial and antifungal potential of 80% methanolic extract against E. coli (30 mm DIZ) and A. Paraciticus (29 mm DIZ), respectively was observed. The results showed that 80% methanolic L. stoechas Leaves extract are potent source of nutra-pharmaceuticals agents for practical applications.