0000000001033926

AUTHOR

Valeria D'angelo

showing 1 related works from this author

Polyphenol Characterization, Antioxidant and Skin Whitening Properties of Alnus cordata Stem Bark

2019

In this study, we investigated the phenolic composition of the crude extract (MeOH 80 %) of Alnus cordata (Loisel.) Duby stem bark (ACE) and its antioxidant and skin whitening properties. RP-LC-DAD analysis showed a high content of hydroxycinnamic acids (47.64 %), flavanones (26.74 %) and diarylheptanoids (17.69 %). Furthermore, ACE exhibited a dose-dependent antioxidant and free-radical scavenging activity, expressed as half-maximal inhibitory concentration (IC50 ): Oxygen radical absorbance capacity (ORAC, IC50 1.78 μg mL-1 )>Trolox equivalent antioxidant capacity (TEAC, IC50 3.47 μg mL-1 )>2,2-Diphenyl-1-picrylhydrazyl (DPPH, IC50 5.83 μg mL-1 )>β-carotene bleaching (IC50 11.58 μg mL-1 )…

AntioxidantOxygen radical absorbance capacityDPPHmedicine.medical_treatmentTrolox equivalent antioxidant capacityBioengineeringAlnus cordata; antimelanogenic activity; Betulaceae; mushroom tyrosinase; polyphenols; RP-LC-DAD analysis; zebrafish; Alnus; Animals; Antioxidants; Biphenyl Compounds; Enzyme Inhibitors; Monophenol Monooxygenase; Picrates; Plant Bark; Plant Extracts; Polyphenols; Skin; ZebrafishAlnus01 natural sciencesBiochemistryAntioxidantschemistry.chemical_compoundPicratesmedicineAnimalsFood scienceEnzyme InhibitorsMolecular BiologyIC50ZebrafishSkinbiologyMonophenol MonooxygenasePlant Extracts010405 organic chemistryBiphenyl CompoundsPolyphenolsSkin whiteningGeneral ChemistryGeneral Medicinebiology.organism_classificationAlnus cordata0104 chemical sciences010404 medicinal & biomolecular chemistrychemistryPolyphenolPlant BarkMolecular Medicine
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