Kurumun Atıf Alan Makalesi
Atıf Alan Yayın
Antioxidant potentials and anticholinesterase activities of methanolic and aqueous extracts of three endemic Centaurea L. species
Scopus
Toplam 223 atıf DOI
The methanol and aqueous extracts of three endemic Centaurea species (C. polypodiifolia var pseudobehen, C. pyrrhoblephara and C. antalyense) were investigated for their antioxidant and cholinesterase inhibitory activities. The antioxidant activities of these extracts were evaluated by in vitro models including, phosphomolybdenum assay, free radical scavenging assays (DPPH and ABTS), β-carotene/linoleic acid test system, metal chelating assay, FRAP assay, ferric and cupric reducing power. Cholinesterase inhibitory activities were examined using Ellman's colorimetric method. Total phenol, flavonoid, and saponin contents were also measured. Among the six Centaurea extracts evaluated, the highest antioxidant abilities were obtained from C. polypodiifolia var pseudobehen. Methanolic extracts from C. polypodiifolia var pseudobehen and C. antalyense had a noticeable inhibition towards AChE and BChE. These findings suggest that Centaurea species could be an anticholinesterase agent and antioxidant resource in some industries, such as food, pharmacology, and cosmetics. © 2013 Elsevier Ltd.
Atıf Kaynağı
Atıf Yapan Yayın
Total phenolics, flavonoids, condensed tannins content of eight centaurea species and their broad inhibitory activities against cholinesterase, tyrosinase, α-amylase and α-glucosidase
Scopus
Havuzumuzda Open Access 52 atıf almış
Several bioactive compounds originate from natural sources and their uses are generally related with traditional or folk medicine. Synthetic drugs can have adverse side effects and, for this reason, the investigation of novel, safe, and naturaloccurring products can account for the development of new drugs. The genus Centaurea L. is one of the most important genera of the Asteraceae family, containing more than 200 species in the Turkish flora, about 140 of which are endemic. The aim of the present work was to determine enzyme inhibitory potentials of two extracts (chloroform and ethyl acetate) from eight Centaurea species against cholinesterase, tyrosinase, amylase, and glucosidase. The total phenolics, flavonoids and condensed tannin contents were also reported for each extract. These components in the extracts varied according to species and extraction solvents as well as enzyme inhibitory effects. The highest level of phenolics was found to be in the chloroform extract of C. pulchella (119.23 mg GAEs/g extract). Generally, chloroform extracts exhibited stronger enzyme inhibitory effects as compared to ethyl acetate. Additionally, possible correlations with total phenolics, flavonoids, and condensed tannins content were also highlighted. This paper is the first report of the inhibitory capacities of the eight Centaurea species on the selected enzymes. The present results may be a valuable starting point in the development of new bioactive formulations.
Atıf Yapan Makale Bilgileri
Kurumlar (4)
Interuniversity Consortium of Structural and Systems Biology
Rome, Italy
Selçuk Üniversitesi
Selçuklu, Turkey
Universitatea de Medicina si Farmacie Iuliu Hatieganu din Cluj-Napoca
Cluj Napoca, Romania
University of G. d'Annunzio Chieti and Pescara
Chieti, Italy