scholarly journals Inhibitory Activity of HEp-2 Cells by Honey from Indonesia

2019 ◽  
Vol 22 (6) ◽  
pp. 317-325
Author(s):  
La Ode Sumarlin ◽  
Anna Muawanah ◽  
Farhan Riza Afandi ◽  
Adawiah Adawiah
Keyword(s):  
Ethyl Acetate ◽  
Anticancer Activity ◽  
Laryngeal Cancer ◽  
Inhibitory Activity ◽  
Ethyl Acetate Extract ◽  
Cytotoxicity Test ◽  
Inhibition Activity ◽  
Tetrazolium Bromide ◽  
Mtt Method ◽  
Diphenyl Tetrazolium Bromide

Indonesian local honey contains active compounds that have the potential as an antioxidant and anticancer, primarily as a laryngeal anticancer through the inhibition of HEp-2 cells. This study aims to determine the anticancer activity of several types of honey in Indonesia through the inhibition of HEp-2 cells. Samples used in the form of Trigona, Longan, Rambutan, and Kaliandra honey obtained from honey farmers in Sulawesi and Java, Indonesia. Honey samples extracted by using methanol, then liquids partition was carried out consecutively using n-hexane and ethyl acetate. The cytotoxicity test for HEp-2 cells was carried out using the MTT method (3- (4,5-dimethyl thiazol-2-il) -2,5-diphenyl tetrazolium bromide). The results showed that all honey samples were active against preventing HEp-2 cells with the highest inhibition activity from longan honey with ethyl acetate extract at 65.18% at 100 ppm. Longan honey has decreased HEp-2 cell inhibitory activity after fractionation. Indonesian local honey, namely trigona honey, kaliandra honey, rambutan honey, and longan honey, can be used as a supplementary supplement for patients with laryngeal cancer.

A Flavonoid compound of Turbinaria decurrens Bory with The Potential Antioxidant and Anticancer Activity

2021 ◽  
pp. 6207-6210
Author(s):  
Fitriyanti Jumaetri Sami ◽  
Nunuk Hariani Soekamto ◽  
Tatsufumi Okino ◽  
Firdaus Firdaus ◽  
Jalifah latip
Keyword(s):  
Ethyl Acetate ◽  
Anticancer Activity ◽  
Ethyl Acetate Extract ◽  
Flavonoid Compound ◽  
Mtt Method ◽  
South Sulawesi ◽  
Isolation And Characterization ◽  
Ic50 Value ◽  
Dpph Method ◽  
Ft Ir

Isolation and characterization of quercetin flavonoid compound from Dutungan Island, South Sulawesi Province, Indonesia has been successfully done from ethyl acetate extract. Extraction method used maceration, isolation used chromatography, anticancer activity with MTT method and antioxidant test used DPPH radical. Structure was discussed with the FT-IR, NMR spectrophotometer and compared with the literature. Total flavonoids from ethyl acetate extract were 4.8 mgEQ/g, IC50 value of antioxidant activity was 4.23 μg/ml using the DPPH method (2,2-diphenyl-1-picrylhydrazyl), and anticancer activity of H460 cells IC50 value was 10.95 μg/ml. The quercetin compound is potential as an anticancer and was first report in the T. decurrens Bory species.

scholarly journals ANGIOTENSIN CONVERTING ENZYME INHIBITORY ACTIVITY OF MELINJO (GNETUM GNEMON L.) SEED EXTRACTS AND MOLECULAR DOCKING OF ITS STILBENE CONSTITUENTS

2017 ◽  
Vol 10 (3) ◽  
pp. 243
Author(s):  
Abdul Mun'im ◽  
Muhammad Ashar Munadhil ◽  
Nuraini Puspitasari ◽  
Azminah . ◽  
Arry Yanuar
Keyword(s):  
Molecular Docking ◽  
Angiotensin Converting Enzyme ◽  
Ethyl Acetate ◽  
Inhibitory Activity ◽  
Phenolic Content ◽  
Ethyl Acetate Extract ◽  
Total Phenolic ◽  
Converting Enzyme ◽  
Gnetum Gnemon ◽  
Ace Inhibitory

ABSTRACTObjectives: To evaluate the angiotensin converting enzyme (ACE) inhibitory activity of melinjo (Gnetum gnemon) seed extract and to study moleculardocking of stilbene contained in melinjo seeds.Methods: Melinjo seed powders were extracted with n-hexane, dichloromethane, ethyl acetate, methanol, and water successively. The extracts wereevaluated ACE inhibitory activities using ACE kit-Wist and the phenolic content using Folin–Ciocalteu method. The extract demonstrated the highestACE inhibitory activity was subjected to liquid chromatography-mass spectrometry (LC-MS) to know its stilbene constituent. The stilbene constituentsin melinjo seed were performed molecular docking using AutoDock Vina, and ligand-receptor Interactions were processed using Ligand Scout.Results: The ethyl acetate extract demonstrated the highest ACE inhibition activity with inhibitory concentration 50% value of 9.77 × 10−8 μg/mLand the highest total phenolic content (575.9 mg gallic acid equivalent/g). Ultra-performance LC-MS analysis of ethyl acetate extract has detected theexistency of resveratrol, gnetin C, ε-viniferin, and gnemonoside A/B. These compounds displayed similar physiochemical properties to lisinopril (ACEinhibitor), as in silico molecular docking studies demonstrated that they fit into the lisinopril receptors.Conclusion: In vitro analysis ethyl acetate extract from melinjo seeds demonstrated the highest ACE inhibitory activity. Molecular docking analysisindicated that resveratrol dimers, gnetin C and gnemonoside A can be considered ACE inhibitor.Keywords: Angiotensin converting enzyme inhibitor, Gnetum gnemon, Melinjo, Total phenolic, Antihypertension, Molecular docking.

scholarly journals SKRINING SENYAWA METABOLIT SEKUNDER DAN UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETILASETAT DAUN WEDUSAN (Eupatorium odoratum)

Molekul ◽  
2009 ◽  
Vol 4 (2) ◽  
pp. 94
Author(s):  
Purwati Purwati ◽  
Undri Rastuti
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Research Method ◽  
Oxidation Process ◽  
Ethyl Acetate Extract ◽  
Natural Process ◽  
Inhibition Activity ◽  
Octadecanoic Acid ◽  
Fat Quality

Oxidation process is a natural process which always occurs in fat. The process affects and decreases the fat quality. Oxidation in fat can be hampered by the addition of antioxidant. Antioxidant activity of wedusan leaf has to be studied to know the possibility of wedusan leaf as an antioxidant. Hence, the aims of the research were to determine the antioxidant activity of ethyl acetate extract of wedusan leaf using TBA method, and to compare the antioxidant activity of wedusan leaf and that of BHT. The research method consisted of sample preparation, extraction, and determination of antioxidant activity using TBA method. Wedusan leaf was extracted by maceration using n-hexane and ethyl acetate solvents. The n-hexane extract was 2.90 gram, whereas ethyl acetate extract was 13.12 gram. Based on qualitative screening on secondary metabolites, ethyl acetate extract contained flavonoid. The results from GC-MS indicated that ethyl acetate extract contained methyl heptadecanoic, methyl-13-octadecenoic, 14,16-octadecadienal, and octadecanoic acid. The order of inhibition activity of antioxidant were 0.05% (w/v) of BHT > 0.15% (w/v) of ethyl acetate extract > 0.10% (w/v) of ethyl acetate extract > 0.05% (w/v) of ethyl acetate extract.

SECONDARY METABOLITES FROM RICE CULTURE OF ASPERGILLUS SP. ISOLATED FROM MELALEUCA SUBULATA (CHEEL) CRAVEN LEAVES AND THEIR ANTICANCER ACTIVITY

2020 ◽  
pp. 52-61
Author(s):  
HAITHAM ALI IBRAHIM ◽  
REHAM RAGAEI IBRAHIM ◽  
REEM ALAA KAMEL ◽  
SHAHENDA METWALLY EL-MESSERY ◽  
FATMA ABDELKADER MOHARRAM
Keyword(s):  
Secondary Metabolites ◽  
Ethyl Acetate ◽  
Anticancer Activity ◽  
Ethyl Acetate Extract ◽  
Moderate Activity ◽  
Hep G2 ◽  
Rice Culture ◽  
Aspergillus Sp ◽  
Hsp 90 ◽  
Mcf 7

Objective: Aspergillus fungus is a rich source of natural products with broad biological activities. This study was conducted to identify secondary metabolites from the rice culture of Aspergillus species isolated from Melaleuca subulata leaves and evaluated their anticancer activity. Methods: Ethyl acetate extract was fractionated on silica gel and Sephadex columns. Structures of the compounds were established using physical and chemical methods. Cytotoxic activities of the extract and pure compounds against two human cancer cell lines (Mcf-7and Hep G2) were evaluated using microculture tetrazolium assay as well as the mode of the cytotoxicity was evaluated. Molecular docking studies have been performed using the Hsp 90 enzyme as an anticancer target. Results: Methyl linoleate (1), arugosin C (2), ergosterol (3), sterigmatocystin (4), diorcinol (5), alternariol-5-O-methyl ether (6), averufin (7), averufanin (8), and alternariol (9) were identified from ethyl acetate extract. All tested compounds exhibit week activity against MCF-7 and Hep G2 cell lines but a mixture of compounds 7 and 8 is considered to be more active towards both MCF-7 and Hep G 2 in comparison to other compounds. Compound 4 exhibits moderate activity against Hep G2 only as well as the ethyl acetate extract exerts moderate activity against MCF-7 cell line Moreover, compound 4 and a mixture of 7 and 8 caused a decrease in the number of Hep G2 cancer cells due to apoptotic and necrotic processes. Most active anticancer candidates 7 and 8 showed binding to the active site similar to geldanamycin reference ligand. Conclusion: Secondary metabolites identified from Aspergillus sp. and their anticancer activity were evaluated. Molecular docking suggested active candidates as Hsp 90 inhibitors.

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