@article {1701, title = {Tyrosinase Inhibitory Activity of Garcinia latissima Miq. Extracts}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {December 2021}, pages = {1673-1677}, type = {Research Article}, chapter = {1673}, abstract = {

Background: Tyrosinase is an enzyme that plays an essential part in the process of melanin synthesis. High exposure to ultraviolet (UV) radiation or high stimulation of melanocytes could cause excessive melanin pigments to lead to hyperpigmentation. Objective: This study aimed to find potential natural skin lightening ingredients from Garcinia latissima Miq. Methods: Stem bark, fruits, and leaves of Garcinia latissima Miq. were extracted with successive maceration. The tyrosinase inhibitory activity test was measured spectrophotometrically at 490 nm using 3,4-dihydroxy-L-phenylalanine (L-DOPA) as substrate and kojic acid as a positive control. Results: The tyrosinase inhibitory activity test at a concentration of 100 ppm showed that the bark ethyl acetate extract 15.94\% {\textpm} 7.70, bark methanol extract of 28.94\% {\textpm} 5.73, fruit n-hexane extract 25.16\% {\textpm} 10.22, fruit methanol extract 23.26\% {\textpm} 9.10; and leaf methanol extract 30.59\% {\textpm} 0.63 with kojic acid inhibition 65.07\%. Conclusion: Methanol extract of leaf from Garcinia latissima Miq was the most active extract as a tyrosinase inhibitor.

}, keywords = {Extract, Garcinia latissima Miq., Succesive maceration, Tyrosinase}, doi = {10.5530/pj.2021.13.215}, author = {Neneng Siti Silfi Ambarwati and Berna Elya and Yesi Desmiaty and Ayun Erwina Arifianti and Islamudin Ahmad} } @article {1115, title = {Anti-Elastase, Anti-Tyrosinase and Anti-Oxidant of Rubus Fraxinifolius Stem Methanolic Extract}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {March 2020}, pages = {271-275}, type = {Original Article}, chapter = {271}, abstract = {

Introduction: Some Rubus were reported had anti-skin aging activity. Rubus fraxinifolius was one of Rubus genus which lives in Indonesian highland. Objective: This study was to examine elastase, tyrosinase, and oxidant inhibitory activity of R. fraxinifolius stem (RFS) extract. Methods: Extraction was done by a Soxhlet apparatus using methanol as solvent. Elastase inhibition activity was determined, which based on the formation of p-nitroaniline. Tyrosinase inhibition activity evaluated based on inhibition of mushroom tyrosinase by the sample with L-DOPA as substrate. The activity of antioxidant was determined using the DPPH radical scavenger method. LC-MS was used for prediction of naturally occurring phytochemicals. Results: The RFS extract yield was 9.03 \%. The RFS extract revealed inhibition activity against elastase and tyrosinase with IC50 128.85 ppm, and 155.19 ppm, respectively. DPPH radical scavenging activity gave IC50 63.04 ppm. Total phenolic content of the extract was 387.99+3.21 mg GAE/g extract. The LC-MS analysis showed the presence of at least 13 different organic compounds in RFS extract, which might contribute to the bioactivity. Conclusion: Therefore, this experiment further proved that RFS extract might be useful as a natural product ingredient of anti-photoaging skincare products because of its ability to inhibit elastase, tyrosinase, and as an antioxidant.

}, keywords = {Anti-Elastase, Anti-tyrosinase, Antioxidant, Rubus fraxinifolius stem}, doi = {10.5530/pj.2020.12.42}, author = {Yesi Desmiaty and Fadlina Chany Saputri and Muhammad Hanafi and Rini Prastiwi and Berna Elya} } @article {1101, title = {The Antioxidant Activity of Sterculia stipulata Korth Woods and Leaves by FRAP Method}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {March 2020}, pages = {236-239}, type = {Original Article}, chapter = {236}, abstract = {

Background: Phenol compounds and flavonoids are known have antioxidant activity. Sterculia genus has secondary metabolite rich of phenols and flavonoids. Objective: The aim of this study of the activity antioxidants of Sterculia stipulata Korth. Woods and leaves by FRAP method. Materials and methods: Extraction done using n-hexane, ethyl acetate, and methanol. The methanol extract was determined antioxidant activity using the FRAP method and also determined the total phenols content, total flavonoids, and phytochemical screening. Results: The antioxidant activity of wood extract was 4.74 {\textpm} 1.03 FeEAC (mol/g) while leaves extract 41.17 {\textpm} 1.99 FeEAC (mol/g). Total phenols content for wood extract 16.46 {\textpm} 3.51 mg GAE/g, for leaves extract 141.62 {\textpm} 10.54 mg GAE/g. The total flavonoids content for woods extract was 27.99 {\textpm} 0.62 mg QE/g for leaf extract 41.45 {\textpm} 5.83 mg QE/g. The compounds of woods and leaves are the same; it is consist of terpenoids, alkaloids, phenols, flavonoids, saponins, terpenoids, and negatives for anthraquinone. Conclusion: The antioxidant activity of the leaves of Sterculia stipulata Korth. is greater than its wood activities.

}, keywords = {Antioxidant, Flavonoids, FRAP, Phenols, Sterculia stipulata Korth}, doi = {10.5530/pj.2020.12.36}, author = {Rini Prastiwi and Berna Elya and Muhammad Hanafi and Yesi Desmiaty and Rani Sauriasari} } @article {715, title = {Arginase Inhibitory, Antioxidant Activity and Pharmacognosy Study of Sterculia macrophylla Vent. Leaves}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {August 2018}, pages = {1109-1113}, type = {Original Article}, chapter = {1109}, abstract = {

Objective: The purpose of this study was to investigate the arginase inhibitory activity, antioxidant activity, and also pharmacognostical study of Sterculia macrophylla leaves. The main component of genus Sterculia was flavonoid that was well known to demonstrate arginase inhibitory activity. Methods: Sample was extracted gradually using n-hexane, ethyl acetate, and methanol solvents, subsequently. The n-hexane, ethyl acetate, and methanol extract were determined for their arginase inhibitory activity. The most active extract was methanol extract. This extract was determined for its antioxidant activity, arginase inhibitory activity, identification of chemical compound, chromatogram profile and determined the content of total flavonoid. The leaves and powder of Sterculia macrophylla were identified with microscopic and macroscopic evaluation. Results: The most active extract was methanol extract with IC50 114,659 \μg/mL for arginase inhibitory activity and IC50 78.47 \μg/mL for DPPH scavenging activity. The secondary metabolite of methanol extract presence compound of alkaloid, flavonoid, tannin, terpene, and glycoside. The total flavonoid content was 141.10 mg/gram extract. The star-shape trichoma was identified as a specific fragment. Conclusion: The methanol extract of Sterculia macrophylla showed activity as arginase inhibitor and antioxidant.

}, keywords = {Antioxidant, Arginase, Flavonoid, Pharmacognostical, Sterculia macrophylla}, doi = {10.5530/pj.2018.6.188}, author = {Rini Prastiwi and Berna Elya and Rani Sauriasari and Muhammad Hanafi and Yesi Desmiaty} } @article {567, title = {Inhibitory Effect of Lantana camara L., Eclipta prostrata (L.) L. and Cosmos caudatus Kunth. Leaf Extracts on ADP-Induced Platelet Aggregation}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {March 2018}, pages = {581-585}, type = {Original Article}, chapter = {581}, abstract = {

Objective: The leaves of Lantana camara L., Eclipta prostrata (L.) L. and Cosmos caudatus Kunth. are rich in flavonoids, saponins and essential oils. This study was carried out to determine the antiplatelet effect of the three plant extracts on ADP-induced platelet aggregation. Methods: The samples consisted of clopidogrel as positive control, aquadest as negative control and test extracts with concentrations of 40, 60, 80 and 100 mg/ml. Platelet Rich Plasma (PRP) was added for each extract concentration. The absorbance test of the samples was measured at 600 nm, before and after the addition of 20 \μL adenosine diphosphate (ADP) 5 mM. After ADP added, then measured again the plasma absorbance was measured of the same wavelength. Antiplatelet aggregation activity was determined by calculating plasma absorbance before and after addition of ADP. Results: The results showed that the inhibitory percentage of platelet aggregation with extract concentrations of 100, 80, 60 and 40 mg/ml were Lantana camara L. leaf extract (91.17\%; 73.27\%; 72.86\% and 37.15\%), Eclipta prostrata (L.) L. leaf extract (74.55\%; 65.60\%; 48.00\% dan 39.08\%) and Cosmos caudatus Kunth. Leaf extract (59.17\%; 52.56\%; 14.25\% dan 13.82\%), respectively. The test extracts inhibited in vitro ADP-induced platelet aggregation with IC50 value were as follows: 47.09 mg/ml (Lantana camara L), 59.02 mg/ml (Eclipta prostrata (L.) L.) and 87.26 mg/ml (Cosmos caudatus Kunth.) Conclusion: The present work demonstrated that the three extracts could inhibit in-vitro ADP-induced platelet aggregation and the best potency was shown by Lantana camara L leaf extract. }, keywords = {Anti-platelet aggregation, Cosmos caudatus kunth, Eclipta prostrata (L.) L., Lantana camara L.}, doi = {10.5530/pj.2018.3.95}, url = {http://fulltxt.org/article/528}, author = {Ni Made Dwi Sandhiutami and Yesi Desmiaty and Noviyanti} }