|
KMID : 0903520080510010049
|
|
Journal of the Korean Society of Agricultural Chemistry and Biotechnology
2008 Volume.51 No. 1 p.49 ~ p.54
|
|
|
Biological And Antimicrobial Activity of Portulaca oleracea
|
|
Cho Young-Je
Ju In-Sik
Kwon O-Jun
Chun Sung-Sook
An Bong-Jeun
Kim Jeung-Hoan
|
|
|
Abstract
|
|
|
|
The concentration of total phenolic compounds of the water extracts and 80% ethanol extracts form Portulaca oleracea were 3.05 μg/ml and 6.33 μg/ml, respectively. The total antioxidant activities of water extracts and 80% ethanol extracts of Portulaca oleracea were 89.2% and 72.9% in DPPH assay, 69.0% and 96.5% in ABTS assay, antioxidant protection factor of the water and 80% ethanol extracts were each 2.73 PF and 3.63 PF. Tyrosinase inhibitory activities were water extracts and 80% ethanol extracts of Portulaca oleracea were 20.2% and 38.7%. Portulaca oleracea showed high antimicrobial activites against Helicobater pylori, Staphylococcus epidermidis, Staphylococcus aureus, Eschericia coli and Streptococcus mutans. Minimum inhibitory concentrations (MICs) on Helicobacter pylori, Staphylococcus epidermidis, Staphylococcus aureus, Escheichia coli and Streptococcus mutans were 200, 50, 100, 100 and 150 μg/ml, respectively. The result suggest that Portulaca oleracea extracts may be useful as potential source as antioxidant and antimicrobials.
|
|
|
KEYWORD
|
|
|
antioxidant, Escherichia coli, Helicobacter pylori, Portulaca oleracea, Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus mutans, tyrosinase
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|
|