Antimicrobial agents active against multi-resistant Gram-positive bacteria are considered to be of major commercial potential. Commercially viable agents that have been included in recent successful trials include the streptogramins, novel glycopeptides, oxazolidinones and potent quinolones. Cationic peptides have generated much interest, but their utility as successful drug candidates remains ...

Ward Taifi (Taif rose) is considered one of the most important economic products of Taif, Saudi Arabia. In this study both fresh and dry Taif rose were biologically and phytochemically investigated. The 80% methanol extracts and n-butanol fractions of dry and fresh Taif rose had high radical scavenging activity toward artificial 1,1-diphenyl picrylhydrazyl (DPPH)(•) radical with SC50 values ran...

In order to investigate essential oils with biological activity from local wild plants, two valerianaceous species, Nardostachys chinensis and Valeriana officinalis, were screened for their antimicrobial and antioxidant activity. The essential oils were obtained from the roots and rhizomes of the two plants by hydro-distillation, and were analyzed for their chemical composition by gas chromatog...

Skin is the outermost cover and first line of defense human body. cosmeceuticals are therapeutic agents used to maintain flawless skin prevent disorders. Considering ill effects synthetic active agents, natural metabolites preferred for skincare. Cyanobacterium was known produce various secondary with potential. This study focuses on screening whole-cell extract Leptolyngbya valderiana Isolatio...

Abstract The aim of the presented research was to evaluate antimicrobial, anti-tuberculosis and antioxidant activity thiosemicarbazone derivatives. thermal stability degradation nineteen compounds were determined. results obtained in vitro tests indicate potential selected against Staphylococcus aureus , epidermidis Mycobacterium tuberculosis . Some turned out be active free radical scavengers ...

PURPOSE The present study was carried out to evaluate antimicrobial and antioxidant activities from Eriobotrya japonica stems as well investigation of its chemical composition. METHODS Methanol 80% extract of Eriobotrya japonica stems was tested for antimicrobial activity against bacterial and fungal strains and for antioxidant activity using oxygen radical absorbance capacity (ORAC) and the ...