Antibacterial constituents of Neohyptis paniculata

Antibacterial constituents of Neohyptis paniculata.

A new α-pyrone, 6R-[5R,6S-diacetyloxy-1Z,3E-heptadienyl]-5,6-dihydro-2H-pyran-2one (1), along with six known compounds including an α-pyrone, flavones and terpenes was isolated from the aerial parts of Neohyptis paniculata. The structure of 1 was established unambiguously by MS and a series of 1D and 2D-NMR spectroscopic analyses. The antibacterial activity of the compounds (1-7) was investigat...

Antibacterial Activity of Salvia reuterana Constituents

Two flavonids: 5-hydroxy-6,7,4 ́-trimethoxy flavone (salvigenin), 5-hydroxy-7,4 ́-dimethoxy flavone(thitonine) and a labdane type diterpenoid: 8,13-epoxy-14 labdene (manoyl oxide) isolated from the solventextract of the aerial part of Salvia reuterana Boiss.The proposed structure were stablished by 1HNMR,13CNMR, 2DNMR( C-H-Cosy, HMQC),DEPT and Mass spectroscopy and confirmed in accordance withbib...

Antibacterial constituents from Uncaria tomentosa

traditionally used for treatment of several diseases including its theoretic use in microbial We have isolated three flavonoids (Artochamin C, 5'Hydroxycudraflavone A and Dihydrocudraflavone B) based on bioactivity guided isolation. All compounds showed significant antibacterial activities against Escherchia coli, Staphylococcus aureus, Klebsiella pneumoniae and Bacillus subtilis. Artochamin C ...

Antibacterial Activity of Ethanol Extract of Andrographis paniculata

In the present study the ethanol extract of the aerial part of Andrographis paniculata was prepared and evaluated for antimicrobial activity against eleven bacterial strains by determining minimum inhibitory concentration and zone of inhibition. Minimum inhibitory concentration values were compared with control and zone of inhibition values were compared with standard ciprofloxacin in concentra...

Andrographis paniculata (Burm.f) Wall. ex Ness: A Potent Antibacterial Plant