Author(s): Behera BC, Verma N, Sonone A, Makhija U
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Abstract Various solvent extracts of the lichen Usnea ghattensis showed good antioxidant activity. A methanol extract prevented lipid peroxidation by 87\% followed by 65\% in Trolox at 20 microg/ml. It also showed superoxide anion scavenging activity and free radical scavenging activity 56\% and 73\%, respectively. The known antioxidants butylated hydroxytoluene (BHT), butylated hydroxyanisol (BHA) and quercetin at similar concentrations showed superoxide anion scavenging activity of 68, 59 and 47\% and free radical scavenging activity 83, 77 and 69\%, respectively. In addition, these extracts were inhibitory against Bacillus licheniformis, Bacillus megaterium, Bacillus subtilis and Staphylococcus aureus with MIC values of 5-10 microg/ml.
This article was published in Biotechnol Lett
and referenced in Medicinal & Aromatic Plants