An investigation, on the roots of Piper nigrum and the aerial parts of Piper betle, has yielded several alkaloids. The dried root sample of Piper nigrum was extracted using various solvents in increasing polarity. The dried aerial part of Piper betle was extracted using the Soxhlet extraction method. The alkaloids isolated were pellitorine(1), (E)-1-[3’,4’(Methylenedioxy)cinnamoyl]piperidine(2)...

BACKGROUND The growth-inhibiting and morphostructural effects of seven constituents identified in Asarum heterotropoides root on 14 intestinal bacteria were compared with those of the fluoroquinolone antibiotic ciprofloxacin. METHOD A microtiter plate-based bioassay in sterile 96-well plates was used to evaluate the minimal inhibitory concentrations (MICs) of the test materials against the or...

Aqueous leachates and a CHCl3-MeOH (1:1) extract of roots of Stauranthus perforatus showed a significant phytotoxic effect on Amaranthus hypochondriacus and Echinochloa crus-galli. Bioassay-directed fractionation of the active organic extract led to the isolation and characterization of ten secondary metabolites, which included two pyranocoumarins [xanthyletin (1) and 3-(1',1'-dimethylallyl)-xa...

Malaria is still a serious cases all over the world especially in tropical country with predict number 300-500 millions people infected per year. The resistence of these anti-malaria substance make new effort to find strategy against malaria. This study aim summarize potential Piper genus as source antimalarial compound and recent research callus induction piper plant obtain metabolites.The rep...

Abstract Background The cattle farming parasite Rhipicephalus australis is the main tick and one of most important in world from an economic point view. Various studies have been developed order to find plant extracts with effective acaricidal properties environmentally friendly. Studies involving for control on commercial animal herds a developing area New Caledonia. Bioactive natural products...