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Abstract Title:

Evaluation of anti-tyrosinase activity of Allium ursinum extracts and their metal complexes.

Abstract Source:

Acta Sci Pol Technol Aliment. 2018 Jul-Sep;17(3):219-226. PMID: 30269461

Abstract Author(s):

Mohammad Nikkhahi, Effat Souri, Parisa Sarkhail, Maryam Baeeri, Negar Mohammadhosseini

Article Affiliation:

Mohammad Nikkhahi

Abstract:

BACKGROUND: A. ursinum is found to contain high levels of some beneficial phenolic and poly phenolic compounds were found to be effective in scavenging DPPH radicals and tyroinase inhibition. The aim of this study was to evaluate the anti-tyrosinase and antioxidant activity of three different extracts from the ultrasound-assisted method and their metal complexes from A. ursinum to discover new candidates for food additives, cosmetic and pharmaceutical products.

METHODS: Water, 70% ethanol and absolute ethanol extract of Allium ursinum and their man- ganese and zinc-complexes were characterized by FT-IR and UV-Vis spectra and their antioxidant and anti- tyrosinase activity determined using DPPH radical scavenging and mushroom tyrosinase assay.

RESULTS: The antioxidant activity of the water extract was superior to other samples, while the 70% ethanol extract exhibited the highest anti-tyrosinase activity. Metal complex formation of the extracts led to a signifi- cantly lower antioxidant effect. The tyrosinase inhibition strongly related to the metal ion and extraction sol- vent. All the zinc complexes had lower anti-tyrosinase activity than their extracts, while the manganese com- plex of the water and absolute ethanol extracts exhibited higher anti-tyrosinase activity than related extracts.

CONCLUSIONS: This study shows that Mn complex of A. ursinum extracts, based on the solvent extraction, could increase tyrosinase inhibition activity and could be a good candidate for intended cosmetic applications and food additives.

Study Type : In Vitro Study

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