Abstract
UDK: 547.56:582.711.714
 582.711.714:581.45/.47
 Phenolic contents of methanolic extracts prepared from leaves and fruits of Crataegus monogyna Jacq. and Crataegus macrocarpa Hegetschw. were determined. The antioxidant capacity was assessed by DPPH, ABTS and FRAP assay. The results showed that leaves were richer in the content of phenols (59.23 - 91.91 GAE g-1), flavonoids (2.38 - 4.08 mg QE g-1 and 5.24 - 8.9 mg RE g-1) , phenolic acids (33.40 - 68.98 CAE g-1) and proanthocyanidins (26.15 - 48.60 CE g-1) while in fruits anthocyanins dominateted (0.43 - 0.80 CG g-1). Leaves also had higher antioxidant capacity than fruits for both species. Generelly, C. monogyna fruits had higher content of anthocyanins. Total phenols, phenolic acids and proanthocyanidins were highly corelated with DPPH (r2 = 0.8703 - 0.9618), ABTS (r2 = 0.7833 - 0.9443) and FRAP (r2 = 0.903 - 0.9695) assay. The results suggests that these compounds were the major contributors to the antioxidant capacity in leaves and fruits extracts of both species.
 Higher contents of bioactive compounds and higher antioxidant capacity were determined for C. x macrocarpa samples. Therefore, C. x macrocarpa leaves and fruits are valuble source of antioxidant polyphenols with high potential for use in preparation of different natural health products.
Highlights
F Crataegus monogyna Jacq. and Crataegus macrocarpa Hegetschw. were determined
Compering content of investigated compounds between two species we can conclude that C. x macrocarpa leaves are richer in the content of phenols, flavonoids, phenolic acids, proanthocyanidins and anthocyanins while fruits of C. monogyna have only higher content of monomeric anhtocyanins
Antioxidant capacities determined with DPPH, ABTS and Ferric reducing antioxidant power (FRAP) were higher for C. x macrocarpa leaves and fruits samples than C. monogyna samples
Summary
F Crataegus monogyna Jacq. and Crataegus macrocarpa Hegetschw. were determined. The antioxidant capacity was assessed by DPPH, ABTS and FRAP assay. The results suggests that these compounds were the major contributors to the antioxidant capacity in leaves and fruits extracts of both species. In this work we investigated phenolic contents and antioxidant activity of C. monogyna and C. x macrocarpa leaf and fruit methanolic extracts.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
