| Background: Scrophularia umbrosa is a plant used as a traditional herb.
Objectives: This study was designed to investigate the antimalarial activity and free radical scavenging of methanol, DCM and nHexane
extract of aerial parts and seed, as well as total phenol, total flavonoid content, and phytochemical identification.
Methods: GC-MS techniques were used for identification of the chemical composition of the DCM and n-Hexane extract as well
as HPLC and NMR techniques for methanolic extract. The hemozoin formation has been suggested as a desirable drug target to
antimalaria sieve scheme. In the present study, we used the spectrophotometric assay to screen plant extracts. The DPPH method
has been used for antioxidant activity screening of the extracts and fractions. AlCl3 and Folin -Ciocalteu reagents, respectively, were
used for total flavonoid and total phenol content of the samples.
Results: Our results showed that n-hexane and the MeOH extracts, aerial part, and seed did not display any impressive prevention
of heme biocrystallization confidants, however, the DCM extract of aerial part, in comparison with the blank, showed slightly antimalarial
effects. Furthermore, fractions (20%, 40%, and 60%) of MeOH extracts of aerial part and seed of S. umbrosa had moderate to
strong antioxidant activity and it is possible to conclude that there is a positive relation between phenolic and flavonoid composition
as well as antioxidant activity. GC-MS data showed that volatile portions of DCM and n-Hexane extracts of various organs from
S. umbrosa are containing few identifiable compounds. In addition, Aucubin and Luteolin-7-O-rutinoside were also recognized from
MeOH extracts.
Conclusions: Based on the results, the fractions of extracts could be evaluated by 1HNMR for predicting of groups of natural compounds
as well as interfacing chemical and biological assessments. |