Antioxidative Activities of Aqueous and Ethanolic Extracts of Licorice Roots

Additive Effect of a Combination of Artocarpus lakoocha and Glycyrrhiza glabra Extracts on Tyrosinase Inhibition in Melanoma B16 Cells

“…Extraction of Al using water, methanol, ethanol, propanol and butanol demonstrated that ethanol was the most effective solvent for isolating oxyresveratrol and resveratrol [ 43 , 44 ]. Similarly, Glycyrrhiza glabra (Gg) extracted with ethanol had higher total phenolic and flavonoid contents than water extraction [ 45 ]. Glabribin and glycyrrhizic were more abundant from Gg extracted in ethanol compared to extracted that with water, methanol, acetonitrile, and chloroform [ 46 ].…”

“…Many plant extracts that show in vitro inhibitory activity against mushroom tyrosinase are unable to reduce pigmentation in cells [ 51 ]. Previously, crude extracts isolated from A. lakoocha and G. glabra have been found to have tyrosinase inhibitory activities and the ability to reduce melanin pigmentation as well as containing antioxidant and antimicrobial activities [ 34 , 41 , 42 , 43 , 45 , 52 , 53 ]. Similarly, Al and Gg extracts in this study were able to inhibit both mushroom and cellular tyrosinase activities and reduce melanin pigments in B16 cells.…”

Molecular Identification, Antioxidant Efficacy of Phenolic Compounds, and Antimicrobial Activity of Beta-Carotene Isolated from Fruiting Bodies of Suillus sp

“…The reducing power of the phenolic extract was determined according to Refs. [21,22], by mixing 1 mL of phenolic extract which prepared at different concentrations (1, 2.5, and 5 mg/mL) with 2.5 mL of Potassium ferric cyanide solution, then 2.5 mL of phosphate buffer solution at a concentration of 0.2 M at a pH 6.6 was added to the mixture, the mixture was incubated for 20 min at 50 C then 2.5 mL of 10% Trichloroacetic acid (TCA). A centrifugation step was performed at 3000 rpm for 10 min, then 2.5 mL of distilled water was added to 2.5 mL of phenolic extract solution and 1 mL of 1% of ferric chloride, then the mixture was left for 30 min.…”

Effect of different solvents on phytochemical and antimicrobial potential of licorice extract

“…The endpoint is a green color that indicates the presence of quinones. Total phenolic and flavonoid content: Determination of total phenolic content of licorice extract was carried out by procedure described previously (Mohammed, 2014). Firstly, standards of the Gallic acid were made and used for the calibration curve.…”

“…The absorbance was calculated as mg/Gallic acid equivalents/g of extract. Estimation of total flavonoid content was done according to the method described earlier (Mohammed, 2014). Firstly, standards of Quercetin were made and used for the calibration curve.…”