Mulberry (Morus spp. L., Moraceae) fruit, leaves, bark and branches have been used in
traditional medicine as diuretic, hypoglycemic and hypotensive medicaments. The mechanism
of their effects is correlated with the content of active components. The objective of
this work was to evaluate and compare antioxidant properties of different extracts of two
Morus species growing in Serbia: Morus alba L. (white mulberry) and Morus nigra L. (black
mulberry). Potential antioxidant activity, content of antioxidant compounds (phenolics and
flavonoids) and radical scavenging capacity, tested by the DPPH method, were evaluated.
The phenolic and flavonoid composition of different Morus extracts was determined by the
HPLC method. The extracts prepared from fruits, leaves and roots of M. alba and M. nigra
exhibited different characteristics. The highest extraction yield was achieved by M. alba
leaves extraction (23.40%). M. nigra roots extract showed the highest total phenolics
(186.30 mg CAE/g), while the highest total flavonoids content (67.37 mg RE/g) was determined
for M. nigra leaves extracts. In addition, black mulberry leaf extracts with the highest
antioxidant activity had the highest phenolic acids contents. The dominant phenolic components
in the samples were rutin and chlorogenic acid. All investigated mulberry dry
extracts showed high content of phenolic compounds and significant antioxidant activity.
This work contributes to knowledge of the antioxidant properties of Morus species. The
obtained results may be useful in the evaluation of new dietary supplements and food
products.
Mulberry (Morus spp. L., Moraceae) fruit, leaves, bark and branches have been used intraditional medicine as diuretic, hypoglycemic and hypotensive medicaments. The mechanismof their effects is correlated with the content of active components. The objective ofthis work was to evaluate and compare antioxidant properties of different extracts of twoMorus species growing in Serbia: Morus alba L. (white mulberry) and Morus nigra L. (blackmulberry). Potential antioxidant activity, content of antioxidant compounds (phenolics andflavonoids) and radical scavenging capacity, tested by the DPPH method, were evaluated.The phenolic and flavonoid composition of different Morus extracts was determined by theHPLC method. The extracts prepared from fruits, leaves and roots of M. alba and M. nigraexhibited different characteristics. The highest extraction yield was achieved by M. albaleaves extraction (23.40%). M. nigra roots extract showed the highest total phenolics(186.30 mg CAE/g), while the highest total flavonoids content (67.37 mg RE/g) was determinedfor M. nigra leaves extracts. In addition, black mulberry leaf extracts with the highestantioxidant activity had the highest phenolic acids contents. The dominant phenolic componentsin the samples were rutin and chlorogenic acid. All investigated mulberry dryextracts showed high content of phenolic compounds and significant antioxidant activity.This work contributes to knowledge of the antioxidant properties of Morus species. The
obtained results may be useful in the evaluation of new dietary supplements and food
products.
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