Abstract
Convolvulus L. is a member of Convolvulaceae family which have been utilized for their biological activities in folk medicine. The aim of this study is to investigate the inhibitory effect on tyrosinase activity of two Convolvulus species as well as their nitric oxide (NO) scavenging activity potentials. Up to now, no reports have been found on their anti-tyrosinase and NO scavenging activity properties in the literature. C. galaticus and C. phrygius aerial parts were extracted with methanol and then NO scavenging activity assay was utilized for the assurance of radical scavenging activity of the extracts. A nti-tyrosinase activity of the extracts was determined using the modified 96-well microplate method. The highest NO scavenging and anti-tyrosinase activity were found in C. galaticus as 55.20% and 53.16%, respectively.
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