scholarly journals Tyrosinase inhibitory activity of Garcinia xanthochymus fruit pericarp extract

2021 ◽  
Author(s):  
Neneng Siti S. Ambarwati ◽  
Berna Elya ◽  
Yesi Desmiaty ◽  
Dwi Atmanto ◽  
Islamudin Ahmad
Keyword(s):  
Inhibitory Activity ◽  
Tyrosinase Inhibitory Activity ◽  
Garcinia Xanthochymus ◽  
Fruit Pericarp

The C‐terminally shortened analogs of a hexapeptide derived from Lingzhi hydrolysate with enhanced tyrosinase‐inhibitory activity

2021 ◽  
Author(s):  
Sucheewin Krobthong ◽  
Yodying Yingchutrakul ◽  
Pawitrabhorn Samutrtai ◽  
Kiattawee Choowongkomon
Keyword(s):  
Inhibitory Activity ◽  
Tyrosinase Inhibitory Activity

Essential oils bearing specialized metabolites with potential tyrosinase inhibitory activity

2021 ◽  
Author(s):  
Francesca Capetti ◽  
Cecilia Cagliero ◽  
Arianna Marengo ◽  
Giulia Mastellone ◽  
Carlo Bicchi ◽  
...  
Keyword(s):  
Essential Oils ◽  
Inhibitory Activity ◽  
Tyrosinase Inhibitory Activity ◽  
Specialized Metabolites

Tyrosinase Inhibitory Activity of Flavonoids from Artocarpus Lowii King

2014 ◽  
Vol 71 (1) ◽  
Author(s):  
Shajarahtunnur Jamil ◽  
Siti Awanis Abdullah ◽  
Siti Mariam Abdul Lathiff ◽  
Hasnah Mohd Sirat
Keyword(s):  
Inhibitory Activity ◽  
Kojic Acid ◽  
Mushroom Tyrosinase ◽  
Tyrosinase Inhibitory Activity ◽  
Crude Extracts ◽  
Ic50 Value ◽  
Microplate Reader

Tyrosinase inhibitory activity was studied on the crude extracts and flavonoids successfully isolated from the leaves and heartwoods of Artocarpus lowii King. The flavonoids were fully characterized spectroscopically as isobavachalcone (1), 4-hydroxyonchocarpin (2), 2',4'-dihydroxy-4-methoxy-3'-prenyldihydrochalcone (3), 2',4'-dihydroxy-3,4-(2",2"-dimethylchromeno)-3'-prenyldihydrochalcone (4), artocarpin (5), cycloheterophyllin (6) and 4',5-dihydroxy-6,7-(2,2-dimethylpyrano)-2'-methoxy-8-γ,γ-dimethyl allylflavone (7). Tyrosinase inhibitory activity of the samples was determined against mushroom tyrosinase using ELISA microplate reader. Cycloheterophyllin (6) exhibited an excellent inhibitory activity against mushroom tyrosinase comparable to the standard kojic acid with the IC50 value of 52.5 µg/mL (88.3%).

Tyrosinase inhibitory activity of three new glycosides from Breynia fruticosa

2017 ◽  
Vol 22 ◽  
pp. 1-5 ◽  
Author(s):  
Wei-Wen Peng ◽  
Zhu-Qiang Wang ◽  
Meng-Ying Ji ◽  
Zong-Lang Liao ◽  
Zhong-Qiu Liu ◽  
...  
Keyword(s):  
Inhibitory Activity ◽  
Tyrosinase Inhibitory Activity

Flavonols from Heterotheca inuloides : Tyrosinase Inhibitory Activity and Structural Criteria

2000 ◽  
Vol 8 (7) ◽  
pp. 1749-1755 ◽  
Author(s):  
Isao Kubo ◽  
Ikuyo Kinst-Hori ◽  
Swapan K Chaudhuri ◽  
Yumi Kubo ◽  
Yolanda Sánchez ◽  
...  
Keyword(s):  
Inhibitory Activity ◽  
Tyrosinase Inhibitory Activity

Myrothenones A and B, Cyclopentenone Derivatives with Tyrosinase Inhibitory Activity from the Marine-Derived Fungus Myrothecium sp.

ChemInform ◽  
2005 ◽  
Vol 36 (39) ◽  
Author(s):  
Xifeng Li ◽  
Min Kyung Kim ◽  
Uk Lee ◽  
Se-Kwon Kim ◽  
Jung Sook Kang ◽  
...  
Keyword(s):  
Inhibitory Activity ◽  
Tyrosinase Inhibitory Activity

scholarly journals STUDY OF TYROSINASE INHIBITORY ACTIVITY AND PHYTOCHEMICAL SCREENING OF CASSIA FISTULA L. LEAVES

2018 ◽  
Vol 10 (1) ◽  
pp. 384
Author(s):  
Caroline Wijaya ◽  
Berna Elya ◽  
Arry Yanuar
Keyword(s):  
Inhibitory Activity ◽  
Leaf Extract ◽  
Test Results ◽  
Phytochemical Screening ◽  
Cassia Fistula ◽  
Kinetic Assay ◽  
Tyrosinase Inhibitory Activity ◽  
Water Fraction ◽  
Ic50 Value ◽  
Phytochemical Constituents

Objective: This study was carried out to evaluate the phytochemical constituents and tyrosinase inhibitory activity of Cassia fistula leaves.Methods: A tyrosinase inhibitory activity assay was performed by measuring the decrease in the intensity of color suggestive of the inhibition ofdopachrome formation resulting from the L-DOPA-tyrosinase reaction.Results: The test results showed that the tyrosinase inhibitory activity of the water fraction of C. fistula leaf extract had the highest IC50 value(152.031 μg/mL) among other fractions (n-hexane, ethyl acetate, and n-butanol). An enzyme kinetic assay showed that the water fraction of C. fistulaleaf extract inhibited tyrosinase with mixed-type inhibition. Phytochemical screening showed that the water fraction of C. fistula leaf extract containedalkaloids, flavonoids, glycosides, phenols, and tannins.Conclusion: The current study indicated that C. fistula leaves possess significant tyrosinase inhibitory activity.

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