Socotroside, a New Pentacyclic Cucurbitane Glycoside from Dendrosicyos socotrana

2008 ◽  
Vol 63 (12) ◽  
pp. 1415-1420 ◽  
Author(s):  
Osama B. Abdel Halim ◽  
El-Sayed M. Marawan ◽  
Ali A. El-Gamal ◽  
Mona G. Zaghloul
Keyword(s):  
Ethyl Acetate ◽  
Cytotoxic Activity ◽  
Spectral Data ◽  
Ethyl Acetate Extract ◽  
Phytochemical Investigation

Phytochemical investigation of the ethyl acetate extract of the stem of Dendrosicyos socotrana Balf. f. resulted in the isolation of a new pentacyclic cucurbitane glycoside Socotroside, in addition to the three known cucurbitacins, dihydrocucurbitacin D, dihydrocucurbitacin F and cucurbitacin G. The structures of the isolated compounds were established on the basis of their spectral data. The isolated cucurbitacin aglycones showed marked cytotoxic activity.

scholarly journals CYTOTOXIC BIOACTIVE COMPOUNDS FROM CALOTROPIS GIGANTEA STEM BARK

2016 ◽  
Vol 8 (9) ◽  
pp. 111
Author(s):  
Kartini Hasballah ◽  
Murniana . ◽  
Erya . ◽  
Ardian .
Keyword(s):  
Ethyl Acetate ◽  
Cytotoxic Activity ◽  
Ethyl Acetate Extract ◽  
Leukemia Cell ◽  
Stem Bark ◽  
Hexane Extract ◽  
Leukemia Cell Line ◽  
Calotropis Gigantea ◽  
Murine Leukemia Cell ◽  
Main Components

<p><strong>Objective: </strong>The present study deals with the cytotoxic activity of n-hexane and ethyl acetate extracts of <em>Calotropis gigantea</em> L. stem bark and its fractions such as A, B, C, D and E fractions on murine leukemia cell line P388.</p><p><strong>Methods: </strong>The crude extracts of <em>C. gigantea</em> stem bark were prepared using n-hexane and ethyl acetate solvents. The plant extracts were subjected to vacuum liquid chromatography followed by TLC. According to the similarity of stain patterns, the fractions were combined. The extracts and its combined fractions were then subjected for the phytochemical test. Cytotoxic activity of those extracts and its combined fractions were tested using MTT assay. Fraction D was subjected to gravity column chromatography followed by TLC. Then, fractions A, B, and D2 were crystallized and subjected to GC-MS.</p><p><strong>Results: </strong>The qualitative screening of n-hexane extract of <em>Calotropis gigantea</em> L. stem bark for secondary metabolites showed the presence of terpenoid, flavonoids, phenolics and coumarins. While the ethyl acetate extract contained phenolics, steroids, flavonoids, saponins and coumarins compounds. IC<sub>50 </sub>values for n-hexane extract and E fraction are 76.29 µg/ml and 18.48 µg/ml, respectively. In the ethyl acetate extract and C fraction obtained IC<sub>50</sub> values 57.05 µg/ml and 52.58 µg/ml.</p><p><strong>Conclusion: </strong>Cytotoxic activity from E fraction of n-hexane extract of <em>C. gigantea</em> stem bark is the most potent and containing flavonoids, phenolics and coumarins. The main components from several compounds of n-hexane extract of <em>C. gigantea</em> are germacrane-A, (-)-globulol, urs-12-ene and veridiflorol. </p>

scholarly journals CONTRIBUTE TO STUDY ON CHEMICAL CONSTITUENTS OF URENA LOBATA (L.) OF VIETNAM

2019 ◽  
Vol 57 (2) ◽  
pp. 162
Author(s):  
Quan Minh Pham ◽  
Hoai Van Thi Tran ◽  
Lam Tien Do ◽  
Phuong Lan Doan ◽  
Inh Thi Cam ◽  
...  
Keyword(s):  
Mental Disorders ◽  
Ethyl Acetate ◽  
Ethyl Acetate Extract ◽  
Chemical Constituents ◽  
2D Nmr ◽  
Spectroscopic Methods ◽  
Tree Roots ◽  
Chemical Structures ◽  
Phytochemical Investigation ◽  
First Time

Urena lobata L. is used in Vietnamese traditional medicine for the treatment of several diseases. Tree roots are used to treat rheumatism, dysentery, poor digestion, flu, tonsils, malaria, asthma, goiter. Flowers are used to treat chickenpox, fever, and mental disorders. Branches, leaves or whole trees used to treat injuries bruises, rheumatism, mastitis, bites. Phytochemical investigation of the n-hexan and ethyl acetate extract of Urena lobata L. led to the isolation of β-sitosterol (1), β-sitosterol-3-O-β-D-glucopyranoside (2), a-acetylamino-phenylpropyl a-benzoylamino-phenylpropanoate (3), quercetin (4), and trans-tiliroside (5). Their chemical structures were determined by spectroscopic methods including MS, 1D, 2D NMR and comparing with those reported in previous papers. Two compounds 3, 5 were isolated for the first time from Urena lobata plant.

scholarly journals Profil Fraksi Sitotoksik terhadap Sel Murine Leukemia P-388 dari Ekstrak Biji Honje (Etlingera elatior)

2017 ◽  
Vol 3 (1) ◽  
pp. 79-87
Author(s):  
Alfindah Rusanti ◽  
Dede Sukandar ◽  
Tarso Rudiana ◽  
Adawiah Adawiah
Keyword(s):  
Ethyl Acetate ◽  
Cytotoxic Activity ◽  
Mtt Assay ◽  
Chemical Structure ◽  
Ethyl Acetate Extract ◽  
Artemia Salina ◽  
Cytotoxic Compounds ◽  
Murine Leukemia ◽  
Etlingera Elatior

The research characterization of cytotoxic fraction against P-388 leukemia murine cells from the extract honje (Etlingera elatior) seed have been reported. This research lead to isolated and characterization of cytotoxic compounds against P-388 leukemia murine cells from the extract E. elantior seed. The extract of E. elantior seed was maserated by methanol, n-hexane, and ethyl acetate, respectively and estimated their cytotoxic activity against P-388 leukemia murine cell with 3- (4, 5-dimetiltiazol-2-yl) -2,5-difeniltetrazolium bromide (MTT) assay guided toxicity test against of shrimp Artemia salina Leach. Brine shirmp Lethality Test (BSLT) method. The active extracts will be separated by fractionation using column chromatography, radial chromatography, and for analyzing the purity of isolate will estimate by HPLC. The chemical structure of pure isolate will be identified by spectroscopies data UV Vis, FTIR, NMR and MS. The ethyl acetate extract from honje seed have cytotoxic activity by leukemia P-388 cell  with IC50 19.21 µg/mL. The compound toxic as cytotoxicagainst P-388 leukemia murine cells is flavonoid compouds their is resveratrol, lapachol, apigenin, methylated chrysin, 6,2’-dihydroxyflavanone, 3-hydroxy-3,4’-dymethoxyflavone and 4’-hydroxy-5,7-dimethoxyflavanone.DOI: http://dx.doi.org/10.15408/jkv.v0i0.3640

In Vitro Tracing of Cytotoxic Compounds in Jarak Cina Stem Bark (Jatropha Multifida Linn.)

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Sista Werdyani ◽  
Annisa Fitria ◽  
Sari Rakhmawati
Keyword(s):  
Ethyl Acetate ◽  
Cytotoxic Activity ◽  
Cancer Cells ◽  
Cancer Cell ◽  
Ethyl Acetate Extract ◽  
Soxhlet Extraction ◽  
Ethanol Extract ◽  
Jatropha Multifida ◽  
Mcf 7

Cancer remains one of the diseases with increasing number of sufferers, but research on compounds that act as anti-cancer is also ongoing. Terpenoids have been known as a compound that can inhibit the proliferation of cancer cells. One of the medical plants that produce terpenoids is Jarak cina (Jatropha multifida Linn.). Therefore, the possibility of Jarak cina (Jatropha multifida Linn.) to have an cytotoxic activity on cancer cell proliferation is reasonably high. This study was conducted to determine the cytotoxic activity of Jarak cina (Jatropha multifida Linn.) bark extracts against cancer cell MCF-7. Jarak cina bark was extracted using the multilevel soxhlet extraction method with n-hexane, ethyl acetate, and ethanol as the solvents. All the three extracts were then tested against MCF-7 cancer cells using MTT (3-(4,5-dimethylthiazol-2-yl) - 2,5-diphenyltetrazolium bromide) method. Data analysis was performed for IC50 (ppm) parameter. The results showed that the IC50 of n-hexane extract was 313.21 ppm, while the ethyl acetate extract reached 258.38 ppm of IC50, and the IC50 of ethanol extract was 418.51 ppm. The highest potential of cytotoxicity was found in the ethyl acetate extract, so further testing would be required to optimize the proliferation inhibitory activity.

scholarly journals Bioactivity-guided isolation of alkamides from a cytotoxic fraction of the ethyl acetate extract of Anacyclus pyrethrum (L.) DC. roots.

2018 ◽  
Vol 31 (4) ◽  
pp. 180-185
Author(s):  
Souad Hamimed ◽  
Nadji Boulebda ◽  
Hocine Laouer ◽  
Abdelmalik Belkhiri
Keyword(s):  
Ethyl Acetate ◽  
Cytotoxic Activity ◽  
Cell Lines ◽  
Cancer Cell ◽  
Ethyl Acetate Extract ◽  
Human Cancer ◽  
Colorectal Cancer Cell Line ◽  
Cytotoxic Activities ◽  
Root Extract ◽  
Alcohol Extract

Abstract Introduction. The alcohol extract of Pellitory (Anacyclus pyrethrum) roots has been previously shown to exert anticancer activities on the Human Colorectal Cancer Cell Line (HCT) by targeting apoptosis, metastasis and cell cycle arrest. However, the nature of the cytotoxic molecules associated with this activity remains unexplored. Aims. This study aims to reinvestigate Pellitory root extract as regard to its cytotoxic activity and to proceed to a bioguided fractionation to explore its active fraction and to give new insight in their phytochemical constituents. Methods. Powdered roots were subjected to repeated extraction with Petroleum ether (Pe), Chloroform (Ch), Ethyl acetate (Ea) and Methanol (Me). Pellitory extracts were then screened for cytotoxic activity using the Brine Shrimp Lethality (BSL) bioassay. Results. Ea extract exhibited a marked cytotoxic activity, with LC50 of 249.26 μg/mL in the BSL bioassay. The remaining extracts (Pe,Ch,Me) treated groups exhibited no or low mortality in the range of tested concentrations (1-1000 µg/mL). BSL assay-guided chromatographic fractionation of Ea active Extract revealed a highly cytotoxic fraction (F11) with LC50 of 42.5 µg/mL. Multistep purifications of the active F11 fraction afforded four alkamides, namely N-isobutyldeca-2,4-dienamide or Pellitorine (I), N-propyldodeca- -2,8-dienamide (II), N-isobutyltetradeca-2,4-dienamide (III) and N-propylnona-2,5- -dienamide (IV). Conclusions. This study suggests that cytotoxic activity is localized mainly in the ethyl acetate extract (Ea) of pellitory roots. BSL assay fractionation of this active extract leads to the isolation of four alkamides, including pellitorine (I). While this isobutyl alkamide has previously shown strong cytotoxic activities against human cancer cell lines, the other compounds (II to IV) were not previously reported as cytotoxic. Subsequently, the isolated alkamides will be considered in future study as candidates for in depth in-vitro evaluation of their cytotoxicity against cancer and normal cell lines. Finally, through this study, BSL assay demonstrate again its usefulness as bench-top assay in exploring plant extracts for cytotoxic compounds.

scholarly journals IN VITRO BIOACTIVITY TEST OF IRRADIATED MAHKOTA DEWA BARK [Phaleria macrocarpa (Scheff.) Boerl.] AGAINST HUMAN CANCER CELL LINES

2012 ◽  
Vol 12 (1) ◽  
pp. 43-48
Author(s):  
Ermin Katrin Winarno
Keyword(s):  
Ethyl Acetate ◽  
Gamma Irradiation ◽  
Cytotoxic Activity ◽  
Cell Lines ◽  
Irradiation Dose ◽  
Ethyl Acetate Extract ◽  
Human Cancer ◽  
Cytotoxic Potential ◽  
Ic50 Values ◽  
Phaleria Macrocarpa

Gamma irradiation has been used to preserve an herbal medicine, but it has not been known the effects of gamma irradiation on their bioactivity as an anticancer agent yet. In the previous study, the gamma irradiation on mahkota dewa bark with the optimum dose of 7.5 kGy could be used for decontamination of bacteria and fungus/yeast. In this report, the effect of gamma irradiation with the dose of 7.5 kGy on the bioactivities of mahkota dewa (Phaleria macrocarpa (Scheff) Boerl.) bark against leukemia L1210 cells was studied. The control and irradiated samples were successively macerated with n-hexane and ethyl acetate. In the previous results, silica gel column chromatography of ethyl acetate extract of non irradiated sample (control) gave 8 fractions. Among these fractions, fraction 6 indicated the most cytotoxic-potential fraction, so that in this experiment, the ethyl acetate extract of irradiated and non irradiated sample were fractionated with the same manner as previous fractionation. The fraction 6 obtained both from control and irradiated samples were then assayed their inhibitory activities against 4 kinds of human cancer lines, i.e. HeLa, THP-1, HUT-78 and A-549. The results showed that the fraction 6 from control sample gave IC50 values of 3.65, 5.59, 3.55, and 4.06 µg/mL, against HeLa, THP-1, HUT-78 and A-549, respectively, meanwhile fraction 6 from irradiated sample gave IC50 values of 8.26, 7.02, 5.03, and 5.59 µg/mL, respectively. Gamma irradiation dose of 7.5 kGy on mahkota dewa bark could decreased the cytotoxic activity of fraction 6 as the most cytotoxic-potential fraction against HeLa, THP-1, HUT-78 and A-549 cancer cell lines, but decreasing the cytotoxic activity has not exceeded the limit of an extract and the fraction declared inactive. So that the irradiation dose of 7.5 kGy can be use for decontamination of bacteria and fungus/yeast without eliminating the cytotoxic activity.

scholarly journals Antioxidant Properties and Cytotoxic Activity of Ethyl Acetate Fraction of Plectranthus amboinicus (Lour.) Spreng. Leaves on HeLa and T47D Cell Lines

2019 ◽  
Vol 10 (1) ◽  
pp. 37
Author(s):  
Poppy Anjelisa Zaitun Hasibuan ◽  
Panal Sitorus ◽  
Denny Satria ◽  
Rizka Damela Sibuea
Keyword(s):  
Ethyl Acetate ◽  
Cytotoxic Activity ◽  
Cell Lines ◽  
Mcf7 Cell ◽  
Ethyl Acetate Extract ◽  
Antioxidant Properties ◽  
T47d Cell ◽  
Flavonoid Content ◽  
Dpph Method ◽  
Plectranthus Amboinicus

Research into plants with anticancer effects is actively encouraged in orderto discover new drugs with lessertoxicity but more potent effects. The aims of study are to evaluate the antioxidant properties and to investigate the cytotoxic activity of Plectranthus amboinicus (Lour.) Spreng. leaves ethyl acetate fractions on HeLa,T47D and MCF7 cell lines. The extract was prepared by graded maceration using n-hexane and ethyl acetate. The ethyl acetate extract was fractionated in vacuum liquid chromatography with n-hexane: ethyl acetate; and ethyl acetate: methanol as mobile phase. Then, the fractions were analyzed with thin layer chromatography (TLC). The free radical scavenging activity was measured by DPPH method, the total flavonoid content was calculated by quercetin equivalent and the absorbance is measured by using UV-Visible spectrophotometry. The cytotoxic activity were determined using MTT assay. The fractions contained 5 sub fractions with same TLC profile. The fractions showed antioxidant activity by DPPH method with different IC50 values, namely: 130 µg/mL(I), 127 µg/mL(II), 137 µg/mL(III), 129 µg/mL(IV), and 124 µg/ mL(V), respectively. The measurement of total flavonoid content showed 118 mg QE/g (I), 50 mg QE/g (II), 207 mg QE/g (III), 56 mg QE/g (IV), and 55 mg QE/g (V). The IC50 of each sub fractions on HeLa cell were 77 µg/mL, 46 µg/mL, 93 µg/mL, 71 µg/mL and 476 µg/mL; for T47D cell were 1621 µg/mL, 111 µg/mL, 128 µg/mL, 150 µg/mL and 209 µg/mL; and for MCF7 were 259 µg/mL, 343 µg/mL, 575 µg/mL, 408 µg/mL and 250 µg/mL. Based on the results, the fractions derived from ethyl acetate extract of Plectranthus amboinicus (Lour.) Spreng. leaves exhibit antioxidant. The Fraction II from ethyl acetate extract of Plectranthus amboinicus (Lour.) Spreng. was the most cytotoxic on HeLa, T47D and MCF7 cell lines. It is potential to undergo further isolation of its cytotoxic compounds.Keywords : antioxidant, cytotoxic, Plectranthus amboinicul (Lour.) Spreng., ethyl acetate fractions

scholarly journals Triterpenoids from the Stem Bark of Crataeva nurvala

1970 ◽  
Vol 7 (1) ◽  
pp. 71-74 ◽  
Author(s):  
Md Enamul Haque ◽  
Md Nahidul Islam ◽  
Dipankar Das Gupta ◽  
Mahbub Hossain ◽  
Hossain Uddin Shekhar ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Key Words ◽  
Silica Gel ◽  
1H Nmr ◽  
13C Nmr ◽  
Ethyl Acetate Extract ◽  
Stem Bark ◽  
First Report ◽  
Spectroscopic Analyses ◽  
Phytochemical Investigation

Two triterpenoids, phragmalin triacetate (1) and lupeol (2) were isolated from an ethyl acetate extract of the stem bark of Crataeva nurvala (Capparidaceae) by repeated chromatography over silica gel. The structures of these compounds were determined by spectroscopic analyses (UV, IR, 1H NMR, 13C NMR and EIMS). This is the first report of the systematic phytochemical investigation and the presence of these compounds 1 and 2 from this plant. Key words: Crataeva, Capparidaceae, Phragmalin triacetate and Lupeol.  DOI = 10.3329/dujps.v7i1.1221 Dhaka Univ. J. Pharm. Sci. 7(1): 71-74, 2008 (June)

scholarly journals Acanthomine A, a new Pyrimidine-β-Carboline Alkaloid from the Sponge Acanthostrongylophora Ingens

2008 ◽  
Vol 3 (2) ◽  
pp. 1934578X0800300 ◽  
Author(s):  
Sabrin R. M. Ibrahim ◽  
RuAngelie Ebel ◽  
Rainer Ebel ◽  
Peter Proksch
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Ethyl Acetate ◽  
Cytotoxic Activity ◽  
Cell Lines ◽  
Cancer Cell ◽  
Brine Shrimp ◽  
Ethyl Acetate Extract ◽  
Cancer Cell Lines ◽  
Chemical Investigation

Chemical investigation of the ethyl acetate extract of the sponge Acanthostrongylophora ingens afford one new pyrimidine-β-carboline alkaloid named acanthomine A (2), together with two known compounds annomontine (1) and 1,2,3,4-tetrahydronorharman-1-one (3). Their structures were unambiguously established on the basis of NMR spectroscopy (1H, 13C, 1H-1H COSY, HMQC and HMBC) and mass spectrometry. The isolated compounds were tested for cytotoxic activity using brine shrimp bioassay and different cancer cell lines.

scholarly journals Stigmasterol, rengyolone, 2-phenylethyl β-D-glucopyranoside and n-tetradecyl-β-D-glucopyranoside from the flowers of Nyctanthes arbor-tristis Linn

2019 ◽  
Vol 54 (3) ◽  
pp. 275-282 ◽  
Author(s):  
MM Haque ◽  
N Sultana ◽  
SMT Abedin ◽  
SE Kabir
Keyword(s):  
Ethyl Acetate ◽  
1H Nmr ◽  
13C Nmr ◽  
Ethyl Acetate Extract ◽  
Natural Sources ◽  
Chromatographic Techniques ◽  
Phytochemical Investigation ◽  
First Time

A phytochemical investigation was conducted on the flowers of Nyctanthesarbor-tristis Linn. For isolation of compounds, the dried flower’s powder was successively extracted with n-hexane, dichloromethane, ethyl acetate and methanol. The extracts were fractionated using different chromatographic techniques and four compounds were isolated. Stigmasterol (1) from n-hexane, rengyolone (2) from dichloromethane and two other compounds namely, 2-phenylethyl β-D-glucopyranoside (3) and n-tetradecyl-β-D-glucopyranoside (4) from ethyl acetate extract, were isolated. These compounds (1-4) were characterized on the basis of IR, 1H NMR, 13C NMR, DEPT-135 NMR. Compounds 1 and 3 were isolated for the first time from this plant while compound 4 has been isolated and completely characterized from this plant as well as from the natural sources. Bangladesh J. Sci. Ind. Res.54(3), 275-282, 2019

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