The compound isolated from the n-BuOH
fraction of Androsace umbellata MeOH extract was identified as Saxi A (Fig.
In Figure 2, the DPPH radical scavenging activities of various investigated extract n-Butanol and Ethyl acetate of Catha Edulis with age 50 years were in order of n-BuOH
Table 1: Antimicrobial activity of n-BuOH
extract at different concentrations on five bacteria and one fungus.
This assay as shown in Figure 5, indicated that both AcOEt and n-BuOH
extracts of P.
6) showed good activity of n-BuOH
fraction against Aspergillus flavus and Aspergillus fumigatus whereas other fraction were little or ineffective compared to standard which was sufficiently active against both fungal strains.
humile EtOAc, n-BuOH
, and n-hexane extracts on superoxide scavenging activity were 84.
A previous study suggested phenolic compounds found in the n-BuOH
fraction as responsible for the vasodilating activity of C.
This showed an activity enhancement for the fractions, specially the EtOAc and n-BuOH
fractions, in comparison to the crude MeOH extract.
9 M); group III, rats receiving glucose (4 gikg) plus Et0Ac fraction (100 and 200 mg/kg); and group IV, rats receiving glucose (4 g/kg) plus n-BuOH
fraction (100 and 200 mg/kg); group V, rats receiving glucose (4 gikg) plus aqueous extract of green mate infusion (50, 100 and 200 mg/ml); group VI, rats receiving glucose (4 g/kg) plus aqueous extract of roasted mate infusion (50, 100 and 200 mg/ml) of
fraction (205g) was subjected to column chromatography on a silica gel column using mixtures of n-hexane-EtOAc-MeOH of increasing polarity as eluents to give 13 fractions (BI-BXIII).
2]O and partitioned with EtOAc and n-BuOH
successively, to afford EtOAc (120 g), n-BuOH
3], EtOAc and n-BuOH
and observed that only AJEA, EtOAc fraction, significantly stimulated the spontaneous contractility of DCLM.