Phytochemical investigation and anticholinesterase activity of ethyl acetate fraction of Myristica fragrans Houtt. seeds

2020 ◽  
pp. 1-7 ◽  
Author(s):  
Sahar Omidpanah ◽  
Yasaman Vahedi-Mazdabadi ◽  
Azadeh Manayi ◽  
Arezoo Rastegari ◽  
Roshanak Hariri ◽  
...  
2017 ◽  
Vol 12 (10) ◽  
pp. 1934578X1701201
Author(s):  
Bui Van Thanh ◽  
Nguyen Thi Van Anh ◽  
Do Hoang Giang ◽  
Nguyen Hai Dang ◽  
Luu Dam Ngoc Anh ◽  
...  

A phytochemical investigation of an ethyl acetate fraction of Mahonia bealei trunks led to the isolation of three new and four known compounds. By means of NMR and MS spectroscopic methods, the structure of the new compounds was elucidated as bishexadecyl epiphyllate (1), 3-(4-hydroxy-3,5-dimethoxyphenyl)-3-ethoxy-2-sulfopropane-1-ol (2), and 6α-acetoxystigmastan-3β-ol (3).


2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Isabela Francisca Borges Costa ◽  
Sanderson Dias Calixto ◽  
Marlon Heggdorne de Araujo ◽  
Tatiana Ungaretti Paleo Konno ◽  
Luzineide Wanderley Tinoco ◽  
...  

The genusOcotea(Lauraceae) is distributed mainly in tropical and subtropical regions. Some species of this genus asO. puberulaandO. quixoshave been described in the literature, showing antibacterial activity. AndOcotea macrophyllashowed anti-inflammatory activity with inhibition of COX-1, COX-2, and LOX-5. The purpose of this study was the phytochemical investigation of the plant speciesOcotea notatafrom Restinga Jurubatiba National Park, Macaé, RJ, Brazil, and the search for antimycobacterial fractions and compounds. The crude extract was evaluated for antimycobacterial activity and presented95.75±2.53% of growth inhibition at 100 µg/mL. Then, it was subjected to a liquid-liquid partition and subsequently was chemically investigated by HPLC, revealing the major presence of flavonoids. In this process the partition fractions hexane, ethyl acetate, and butanol are shown to be promising in the antimycobacterial assay. In addition, ethyl acetate fraction was chromatographed and afforded two flavonoids identified by MS and NMR as afzelin and isoquercitrin. The isolated flavonoids afzelin and isoquercitrin were evaluated for their antimycobacterial activity and for their ability to inhibit NO production by macrophages stimulated by LPS; both flavonoids isoquercitrin (Acet22) and afzelin (Acet32) were able to inhibit the production of NO by macrophages. The calculated IC50of Acet22 and Acet32 was 1.03 and 0.85 µg/mL, respectively.


2014 ◽  
Vol 9 (4) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
To Dao Cuong ◽  
Tran Manh Hung ◽  
Hyoung Yun Han ◽  
Hang Sik Roh ◽  
Ji-Hyeon Seok ◽  
...  

The anti-cholinesterase activity was evaluated of the ethyl acetate fraction of the methanol extract of Myristica fragrans Houtt (Myristicaceae) seeds and of compounds isolated from it by various chromatographic techniques. The chemical structures of the compounds were determined from spectroscopic analyses (NMR data). Thirteen compounds (1—13) were isolated and identified. Compound 8 {[(7S)-8′-(4′-hydroxy-3′-methoxyphenyl)-7-hydroxypropyl]benzene-2,4-diol} showed the most effective activity with an IC50 value of 35.1 μM, followed by compounds 2 [(8R,8′S)-7′-(3′,4′-methylenedioxyphenyl)-8,8′-dimethyl-7-(3,4-dihydroxyphenyl)-butane] and 11 (malabaricone C) with IC50 values of 42.1 and 44.0 μM, respectively. This is the first report of significant anticholinesterase properties of M. fragrans seeds. The findings demonstrate that M. fragrans could be used beneficially in the treatment of Alzheimer's disease.


2019 ◽  
Vol 19 (3) ◽  
pp. 58-63
Author(s):  
Ilham Maulana ◽  
Binawati Ginting ◽  
Nurdin Nurdin ◽  
Saiful Fakri

Antioxidant activity test for the extract of ethyl acetate nutmeg stem bark (Myristica fragrans Houtt) was carried out using 2,2-diphenyl-1picrylhydrazil (DPPH). The test results of antioxidant activity of ethyl acetate nutmeg stem bark extract with DPPH method at a concentration of 25 ppm, 50 ppm and 100 ppm obtained IC50 value = 68.14 ppm with IC50 value of vitamin C (as positive control) 3.657 ppm. The results of column chromatographic separation of ethyl acetate nutmeg stem bark extract obtained 5 combined fractions namely MFEK 1, MFEK 2, MFEK 3, MFEK 4 and MFEK 5. The test results of the fraction antioxidant activity in a good category were the MFEK 1 fraction. The MFEK 2 fraction to MFEK 5 showed an antioxidant activity lower than compared  to the ethyl acetate extract. This shows that the ethyl acetate nutmeg stem bark extract has a better inhibitory activity, because there are several active compounds contained in the extract which can inhibit free radicals, so the IC50 value of the extract is better than the fractions.


2018 ◽  
Vol 17 (1) ◽  
pp. 98-106
Author(s):  
Ankita Mishra ◽  
Syed Ziaur Rahman ◽  
Rahat Ali Khan

Objective: To evaluatethe role of Myristica fragrans Houtt. for its analgesic, sedative and anxiogenic activity.Method: Charles Foster rats were administered orally the ethanolic extract (EEMF) and fractions of extract in ethyl acetate (EAMF), chloroform (CMF), and n-hexane (HMF). They were screened for sedative activity using Pentobarbitone sleep potentiation test, analgesic activity using Eddy’s hot plate and Tail flick test; and anxiogenic or anxiolytic activity using Open field test.Result: In pentobarbitone induced sleep potentiation test, the ethanolic extract (EEMF) and ethyl acetate fraction (EAMF) showed significant decrease in latency of sleep and highly significant increase in duration of sleep. In Open field test, EEMF, EAMF and HMF showed highly significant decrease in locomotion parameters as shown by decrease in rearing, preening and ambulation. In Eddy’s hot plate test and Tail flick test, highly significant increase in reaction time was seen in EEMF, EAMF, HMF groups.Conclusion: The observed results suggest that Myristica fragrans has analgesic, anxiogenic and sedative activity.Bangladesh Journal of Medical Science Vol.17(1) 2018 p.98-106


2017 ◽  
Vol 12 (1) ◽  
pp. 51 ◽  
Author(s):  
Fazle Rabbi ◽  
Amir Zada ◽  
Achyut Adhikari ◽  
Almas Jabeen ◽  
Amna Nisar ◽  
...  

<p class="Abstract">The present study was aimed to evaluate the methanolic extract and subsequent solvents soluble fractions of <em>Sterculia </em>diversifolia bark for cytotoxic, anti-cancer and immunomodulatory activities. Phytochemical investigation confirmed the presence of alkaloids, flavonoids, saponins, glycosides, etc. In the cytotoxic activity, n-hexane showed potent activity (LD<sub>50</sub>: 7.0 µg/mL) followed by dichloromethane fraction (LD<sub>50</sub>: 16.2 µg/mL). In the anti-cancer activity, dichloromethane fraction showed potent activity (IC<sub>50</sub>: 5.9 µg/mL) followed by ethyl acetate fraction (IC<sub>50</sub>: 9.5 µg/mL). While in the immunomodulatory assay, ethyl acetate fraction showed a very significant activity (IC<sub>50</sub>: 21.0 µg/mL) followed by dicloromethane and n-butanol fractions (IC<sub>50</sub>: 25.0 and 25.3 µg/mL respectively). Hence, it is clear that <em>S. </em>diversifolia has anti-cancer and immunomodulatory agents.</p>


Author(s):  
Omer H Ahmed ◽  
Maha N Hamad ◽  
Noor S Jaafar

  Objective: The aim of our study was to investigate chemical constituents of leaves of Chenopodium murale since no phytochemical investigation had been done previously in Iraq.Methods: Leaves of C. murale were macerated in absolute methanol for 2 days and fractionated by petroleum ether, chloroform, ethyl acetate, and n-butanol. The ethyl acetate fraction was analyzed by high-performance liquid chromatography (HPLC) and high-performance thin-layer chromatography (HPTLC) for its phenolic acid and coumarins contents. Coumarin derivative and phenolic acid were isolated from this fraction and identified by gas chromatography/mass spectrometry, infrared, ultraviolet, HPLC, and HPTLC.Results: The different chromatographic and spectroscopic results revealed the presence of gallic acid and coumarin.Conclusion: The results of the current study showed the presence of scopoletin and gallic acid in the ethyl acetate fraction of C. murale.


Author(s):  
Ankita Dey ◽  
Adrija Tripathy ◽  
Debidas Ghosh

Objective: The investigation has been conducted to find out the threshold dose of ethyl acetate fraction prepared from aqueous-methanol (40:60) extract of seed of Myristica fragrans (Houtt.) from the dose dependent experiment by noting the remedial effects of the said fraction on different complications developed in streptozotocin induced diabetic rat.Methods: Diabetic condition was made by single intramascular injection of streptozotocin at a dose of 4 mg/0.1 ml citrate buffer/100 g body weight. Treatment was conducted at different doses for 28 d on diabetic rat. Efficacy of the fraction on fasting blood glucose (FBG) and serum insulin levels, activities of key carbohydrate metabolic enzymes such as hexokinase, glucose-6-phosphate dehydogenase, glucose-6-phosphatase of hepatic and skeletomuscular tissue as well as antioxidative enzymes like catalase, superoxide dismutase (SOD) in connection with the levels of oxidative stress end products such as thiobarbituric acid reactive substances (TBARS), conjugated diene (CD) in hepatic and renal tissue and gene expression of hexokinase-1, SOD, Bax, Bcl-2 in hepatic tissue were assessed.Results: After different doses of fraction treatment to the diabetic animals; FBG, serum insulin levels and activities of carbohydrate metabolic enzymes i.e. hexokinase, glucose-6-phosphate dehydrogenase and glucose-6-phosphatase were rectified towards the control at the level of p<0.05. There is a significant (p<0.05) recovery in the activities of antioxidant enzymes such as catalase and SOD in respect to the vehicle treated diabetic group. Oxidative stress end products such as CD and TBARS levels were increased significantly (p<0.05) in vehicle treated diabetic rats and was rectified significantly (p<0.05) after fraction treatment at the dose of 10 mg or 20 mg or 40 mg fraction treated group. Gene expression of hexokinase-1, superoxide dismutase, bax and bcl-2 was rectified towards vehicle treated control significantly at the level of p<0.05 after treatment of different doses of fractions to the diabetic animals.Conclusion: The study indicates that the seeds of Myristica fragrans at the dose of 20 mg/100 g body weight possess most effective outcome to manage diabetic disorders in streptozotocin induced diabetic rats.


2018 ◽  
Vol 8 (3) ◽  
pp. 103-107 ◽  
Author(s):  
Adelina Simamora ◽  
Adit Widodo Santoso ◽  
Kris Herawan Timotius

2013 ◽  
Vol 68 (7-8) ◽  
pp. 285-292 ◽  
Author(s):  
Islam Mostafa ◽  
Ehsan Abd El-Aziz ◽  
Samia Hafez ◽  
Assem El-Shazly

The phytochemical investigation of an aqueous ethanolic extract of Galinsoga parviflora Cav. (Asteraceae) resulted in the isolation and identification of eleven compounds namely: triacontanol, phytol, β-sitosterol, stigmasterol, 7-hydroxy-β-sitosterol, 7-hydroxystigmasterol, β-sitosterol-3-O-β-D-glucoside, 3,4-dimethoxycinnamic acid, protocatechuic acid, fumaric acid, and uracil. Furthermore, 48 volatile constituents were identified in the hydrodistilled oil of the aerial parts. The ethanolic extract at a content of 400 mg/kg body weight (BW) exerted 87% reduction in the alanine aminotransferase enzyme level in cirrhotic rats compared with the standard silymarin (150 mg/kg BW) and also exerted a reduction in the blood glucose level equivalent to that of glibenclamide (5 mg/kg BW) in diabetic rats. The ethanolic extract, light petroleum and ethyl acetate fractions exhibited substantial antimicrobial activity against Bacillus subtilis, Pseudomonas aeruginosa, Escherichia coli, Aspergillus niger, and Candida albicans. The ethyl acetate fraction showed strong antioxidant activity at a concentration of 150 mg/mL as compared with 0.1 M ascorbic acid. The cytotoxic effect against the MCF-7 cell line was found to be weak


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