scholarly journals Evaluation of antioxidant activity and cytotoxic potential of Cryp-tocoryne ciliata

2013 ◽  
Vol 2 (2) ◽  
pp. 38-41
Author(s):  
Ummey Jannatun Nahar ◽  
Shah Marzia Mahjabin Lina

Cryptocoryne ciliata belonging to the Araceae family has been investigated for isolation of its secondary metabolites and evaluation of biological activities of the crude extractives with special emphasis to the antioxidant activity and brine shrimp lethality bioassay. The whole plant was extracted with methanol and concentrated extract was partitioned using petroleum ether, carbon tetrachloride and ethyl acetate. Aqueous soluble fraction of the methanolic extract showed the highest antioxidant activity. The carbon tetrachloride soluble fraction of the methanolic extract and the ethyl acetate soluble fraction of the methanolic extract showed moderate antioxidant activity as compared to free antioxidant activity of tert-butyl-1-hydroxytolunene. In the brine shrimp lethality bioassay, among all extracts of whole plant of C. ciliata, the carbon tetrachloride soluble fraction of the methanolic extract showed strong cytotoxic activity. Aqueous soluble fraction of the methanolic extract, methanolic crude and ethyl acetate soluble fraction of the methanolic extract showed mild cytotoxity as compared to that of vincristine sulphate. The study confirms the mild to moderate antioxidant and moderate potent cytotoxic activities of C. ciliata plant extract as compared to reference standards and therefore demands the isolation of active principles and thorough bioassay.DOI: http://dx.doi.org/10.3329/icpj.v2i2.13196 International Current Pharmaceutical Journal 2013, 2(2): 38-41

2015 ◽  
Vol 3 (1) ◽  
pp. 1-5
Author(s):  
Rokeya Siddiqui ◽  
Md Masud Alam ◽  
Mohammad Ruhul Amin ◽  
AFM Shahid Ud Daula ◽  
MM Hossain

Bangladesh possesses a rich flora of medicinal plant. Out of the estimated 5000 species of phanerogams and pteridophytes growing in this country, more than a thousand are regarded as having medicinal properties. The aim of this study was to evaluate the in vitro antimicrobial activity and brine shrimp lethality of the whole plant extracts of Spilanthes paniculata, a plant belonging to the family Asteraceae. The crude extract, n-Hexane, chloroform and ethyl acetate soluble fraction of crude extract showed significant to moderate antimicrobial activity against three Gram positive and three Gram negative microorganisms. The zones of inhibition produced by the crude extract (methanolic extract), n-hexane, choloform and ethyl acetate soluble fractions were found to be 14.89 mm-19.40 mm, 14 mm-19.40 mm, 10.66 mm-13.50 mm and 9.50 mm-13.26 mm, consecutively at a concentration of 30 µg/disc. N-Hexane, chloroform and ethyl acetate soluble fractions of methanolic extract of Spilanthes paniculata were screened for antitumor properties using brine shrimp lethality bioassay. From the results of the brine shrimp lethality bioassay, it can be well predicted that n-hexane, chloroform and ethyl acetate soluble fractions of methanolic extract possess mild cytotoxicity on shrimp naupalii. The median lethal concentration (LC50, the concentration at which 50% mortality of brine shrimp nauplii occurred) of n-hexane, chloroform and ethyl acetate were 48.978 mg/ml, 92.61 mg/ml and 216.770 mg/ml, respectively, comparison with positive control vincristine sulphate with 0.839 mg/ml. DOI: http://dx.doi.org/10.3329/sjm.v3i1.22743 Stamford Journal of Microbiology, Vol.3(1) 2013: 1-5


2012 ◽  
Vol 28 (2) ◽  
pp. 52-56 ◽  
Author(s):  
Rahman M Minhajur ◽  
M Masud Alam ◽  
A F M Shahid Ud Daula ◽  
Mohammad Shahriar ◽  
Md Mizanur Rahman Moghal ◽  
...  

The purpose of the present study is to examine the antibacterial and cytotoxic properties of methanol extract of leaves of Stephania japonica. The crude methanolic extract of S. japonica, n-hexane, chloroform and ethyl acetate soluble fractions of methanolic extract were screened for their antimicrobial activity against a wide range of both Gram-positive and Gram-negative bacteria by disc diffusion method. The crude extract showed moderate and n-Hexane, chloroform soluble fraction of crude extract showed mild antibacterial activity against both Gram-positive and Gram-negative bacteria. Ethyl acetate soluble fraction of the extract showed significant antimicrobial activity against Salmonella typhi, Escherichia coli and Bacillus cereus. The zones of inhibition produced by the crude methanolic extract, n-hexane, chloroform and ethyl acetate soluble fractions were found to be 12.80-16.55 mm, 12.60 mm, 5-14.30 mm and 10-20.25 mm, respectively, at a concentration of 30 g/disc. Chloroform, n-hexane and ethyl acetate soluble fractions of methanolic extract of S. japonica were screened for antitumor properties using brine shrimp lethality bioassay. A reputed cytotoxic agent vincristine sulphate was used as a positive control. From the results of the brine shrimp lethality bioassay, it can be well predicted that chloroform and ethyl acetate soluble fractions of methanolic extract of S. japonica possess cytotoxic principles (with LC50 66.488 mg/ml and LC50 45.662 mg/ml, respectively) comparison with positive control vincristine sulphate (with LC50 0.839 mg/ml). But n-hexane soluble fractions of methanolic extract of S. japonica exhibited no lethality effect on shrimp nauplii. DOI: http://dx.doi.org/10.3329/bjm.v28i2.11816 Bangladesh J Microbiol, Volume 28, Number 2, December 2011, pp 52-56


2014 ◽  
Vol 12 (2) ◽  
pp. 153-158
Author(s):  
Aminrul Islam ◽  
SM Masud Rana ◽  
Abhijit Das ◽  
Monika Rani Saha ◽  
Sultan Md Gias Uddin

The present study was carried out to investigate the methanolic extract of leaf of Erioglossum rubiginosum and its fractionates (petroleum ether, carbontetrachloride and chloroform fractions) for their in vitro antioxidant, thrombolytic and cytotoxic activities. Among the different fractions, the carbontetrachloride soluble fraction (CTF) showed significant antioxidant activity (IC50=30.32±0.08 ?g/ml) as compared to standard ascorbic acid (IC50=5.87±0.21 ?g/ml) and BHT (IC50=27.50±0.64 ?g/ml). The extract also inhibited 58.44±0.97% lipid from peroxidation and reveled excellent phenolic profile of about 128.56±1.02 mg of GAE /g of extract. In the thrombolytic assay the highest % of clot lysis was exhibited by the chloroform soluble fraction (CF) (28.57±0.83%), while for streptokinase it was about 66.77±0.92%. The LC50 values were found within the range of 12.92 to 80.06 ?g/ml, while different solvent fractions were tested for cytotoxicity against brine shrimp nauplii. This is the first report of antioxidant, thrombolytic and cytotoxic activities of E. rubiginosum. Dhaka Univ. J. Pharm. Sci. 12(2): 153-158, 2013 (December) DOI: http://dx.doi.org/10.3329/dujps.v12i2.17612


2012 ◽  
Vol 5 (1) ◽  
pp. 201-205
Author(s):  
M. A. Alam ◽  
T. K. Pal ◽  
M. A. Chowdhury ◽  
M. A. Rashid ◽  
M. S. Rahaman

The n-hexane, carbon tetrachloride, dichloromethane soluble fractions of methanol extract of the whole plant of Desmodium motorium were subjected to antioxidant activity by indicated method, inhibition of microbial growth by disc diffusion method and cytotoxicity by brine shrimp lethality bioassay. The methanol i.e., crude extract showed highest antioxidant activity having IC50 9.5 ?g/ml as compared to 9.0 ?g/ml for standard agent BHT. The n-hexane, carbon tetrachloride and dichloromethane soluble fraction showed moderate inhibitory activity to microbial growth, while all the extractive exhibited strong cytotoxic property with the carbon tetrachloride soluble materials revealed the strongest cytotoxicity with LC50 1.54 ?g/ml.© 2013 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi: http://dx.doi.org/10.3329/jsr.v5i1.10955         J. Sci. Res. 5 (1), 201-205 (2013)


2016 ◽  
Vol 15 (1) ◽  
pp. 69-71 ◽  
Author(s):  
Ridwan Bin Rashid ◽  
Farhan Nur Towsif ◽  
Farhana Ahmed Bushra ◽  
Faiza Tahia

The methanol extracts of whole plant of Cissus adnata (Roxb.) and their organic and aqueous soluble partitioning materials were evaluated for antioxidant, cytotoxic and membrane stabilizing properties. In the DPPH free radical scavenging assay, the aqueous extract of whole plant of C. adnata displayed the highest free radical scavenging activity with IC50 value of 4.17 ?g/ml, while the pet ether soluble fraction showed significant lethality to brine shrimps having LC50 value of 1.02 ?g/ml, as compared to the standard vincristine sulphate (LC50 value of 0.44 ?g/ml). In the evaluation for membrane stabilizing property, the pet ether soluble fraction of methanol extract of the whole plant inhibited 67.43 % and 56.60 % hypotonic solution- and heat-induced haemolysis of RBCs, respectively.Dhaka Univ. J. Pharm. Sci. 15(1): 69-71, 2016 (June)


2007 ◽  
Vol 62 (9-10) ◽  
pp. 656-660 ◽  
Author(s):  
Farid A. Badria ◽  
Madiha Ameen ◽  
Mohamed R. Akl

Calligonum comosum (Polygonaceae), an Egyptian desert plant, was extracted and fractionated using petroleum ether, methylene chloride, and ethyl acetate. The total methanolic extract and other fractions were tested for their anticancer activity using Ehrlich ascites, brine shrimp and antioxidant assays. Ethyl acetate fraction proved to be the most active in all assays. Eight compounds were isolated, purified, and identified from this fraction as (+)- catechin (1), dehydrodicatechin A (2), kaempferol-3-O-rhamnopyranoside (3), quercitrin (quercetin-3-O-rhamnopyranoside) (4), β-sitosterol-3-O-glucoside (5), isoquercitrin (quercetin- 3-O-glucopyranoside) (6), kaempferol-3-O-glucuronide (7), and mequilianin (quercetin-3- O-glucuronide) (8). All isolated compounds were tested for their cytotoxicity and antioxidant activity. Compound 2 showed the best cytotoxic and antioxidant activity.


2011 ◽  
Vol 3 (2) ◽  
pp. 445-450 ◽  
Author(s):  
M. K. Islam ◽  
J. A. Chowdhury ◽  
I. Z. Eti

The work described in this paper details the biological investigation on Bombax ceiba, species of Malvaceae. The methanol crude extract of Bombax ceiba was fractionated with kupchan method and n-hexane, carbon tetrachloride, chloroform fraction were made for  screening the antimicrobial and antitumor potentials using disc diffusion method and brine shrimp lethality bioassay respectively. An established antibiotic (kanamycin, 30µg/disc) and cytotoxic agent (vincristine sulphate) were used to compare the results. From the graphs the concentration of methanolic crude extract give LC50 (50% mortality) value of 3.90mg/ml. LC90 was also determined from the graph to establish the therapeutic index and the value was found 150.0mg/ml. The four fractions were assayed for antimicrobial screening and the carbon tetrachloride fraction showed most prominent zone of inhibition against a number of bacterial and fungal strains.Keywords: Bombax ceiba; Brine shrimp lethality bioassay; Disc diffusion method.© 2011 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi:10.3329/jsr.v3i2.5162                J. Sci. Res. 3 (2), 445-450 (2011)


PHARMACON ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 315
Author(s):  
Selin Widjaya ◽  
Widdhi Bodhi ◽  
Adithya Yudistira

ABSTRACTKersen (Muntingia calabura L.) is a plant that has begun to be eliminated and was rarely used because it is often considered to have no economic value and lack of knowledge about its utilization, whereas kersen plants contain flavonoids, saponins, and tannins which were have high benefit for health. The content of metabolites is affected by soil nutrient elements and difference place of growth. This study aims to determine the potential of kersen leaves grown in North Minahasa based on phytochemical content, ability of antioxidant activity, and toxicity. Kersen leaves were extracted using sequential maceration method with n-hexane, ethyl acetate, and ethanol as solvents. Phytochemical Screening using several reagents which tailored to the type of phytochemical test. 1.1-diphenyl-2-picrylhydrazyl (DPPH) method is used to evaluate antioxidant activity, and Brine Shrimp Lethality Test (BSLT) method is used to evaluate toxicity. The result of this study indicate that the n-hexane extract contains phenols, flavonoids, and tannins, with IC50 value 12.54 μg/mL, and LC50 value 881 μg/mL. Ethyl acetate extract contains phenols, flavonoids, tannins, and saponins, with IC50 value 61.3 μg/mL, and LC50 value 1758 μg/mL. Ethanol extract has phenol, flavonoid, tannin, saponin, and terpenoid content, with IC50 value 9.01 μg/mL, and LC50 value 106 μg/mL. Keywords : Kersen leaves, Antioxidant, Toxicity, IC50, LC50 ABSTRAKKersen (Muntingia calabura L.) merupakan tanaman yang sudah mulai tersingkirkan dan jarang dimanfaatkan karena sering dianggap tidak punya nilai ekonomis dan kurangnya pengetahuan tentang pemanfaatannya, padahal tanaman kersen memiliki kandungan flavonoid, saponin, dan tanin yang bermanfaat tinggi untuk kesehatan. Kandungan senyawa metabolit dipengaruhi oleh unsur hara tanah dan perbedaan tempat tumbuh. Penelitian ini bertujuan untuk mengetahui potensi dari daun kersen yang tumbuh di Minahasa Utara berdasarkan kandungan fitokimia, kemampuan aktivitas antioksidan, dan toksisitasnya. Ekstrak daun kersen diekstraksi dengan metode maserasi sekuensial menggunakan pelarut n-heksan, etil asetat, dan etanol.  Skrining fitokimia menggunakan beberapa reagen yang disesuaikan dengan jenis uji fitokimia. Metode 1.1-diphenyl-2-picrylhydrazyl (DPPH) digunakan untuk mengevaluasi aktivitas antioksidan, dan metode Brine Shrimp Lethality Test (BSLT) digunakan untuk mengevaluasi toksisitas. Hasil penelitian ini menunjukkan bahwa ekstrak n-heksan memiliki kandungan fenol, flavonoid, dan tanin, nilai IC50 12,54 μg/mL, dan nilai LC50 881 μg/mL. Ekstrak etil asetat memiliki kandungan fenol, flavonoid, tanin, dan saponin, nilai IC50 61,3 μg/mL, dan nilai LC50 1758 μg/mL. Ekstrak etanol memiliki kandungan fenol, flavonoid, tanin, saponin, dan terpenoid, nilai IC50 9,01 μg/mL, dan nilai LC50 106 μg/mL. Kata kunci : Daun Kersen, Antioksidan, Toksisitas, IC50, LC50


2015 ◽  
Vol 16 (2) ◽  
pp. 131-135
Author(s):  
M Sekendar Ali ◽  
Kazi Omar Faruq ◽  
Atiqul Islam ◽  
AMM Nurullah ◽  
Kazi Ashfak Ahmed Chowdhury ◽  
...  

The present study was designed to investigate the thrombolytic activity and cytotoxic potential of the methanolic extract of bark of Terminalia bellerica Roxb. The cytotoxicity was assessed with the brine shrimp lethality bioassay and thrombolytic effect with human blood. The brine shrimp lethality bioassay was used to evaluate cytotoxicity (LC50 = 3.21 ?g/ml) compared to vincristine of sulphate (LC50 = 0.512 ?g /ml). It was also evaluated as thrombolytic agent as compared to streptokinase. It has significant thrombolytic activity (32.95%) compared to standard streptokinase (70%). DOI: http://dx.doi.org/10.3329/bpj.v16i2.22293 Bangladesh Pharmaceutical Journal 16(2): 131-135, 2013


2015 ◽  
Vol 17 (2) ◽  
pp. 177-181
Author(s):  
Sanjoy Chandra Dey ◽  
Mohammd Firoz Khan ◽  
Mohammad S Rahman ◽  
Mohammad A Rashid

Bangladesh is a good repository of natural products. Numerous plants are available to facilitate the traditional treatments. Proper scientific evaluations are essential to explore the plant derived drugs. With this view, the crude methanol extract of leaves of Aganosma dichotoma (Roth) K. Schum. and its Kupchan fractions were screened for free radical scavenging, brine shrimp lethality, antimicrobial and thrombolytic activities. Among all extractives, the chloroform soluble fraction demonstrated the highest free radical scavenging activity with IC50 value 18.21 ?g/ml. Moreover, the chloroform soluble fraction showed significant brine shrimp lethality having LC50 value of 3.98 ?g/ml. On the other hand, the petroleum ether, carbon tetrachloride and chloroform soluble materials revealed mild to moderate antimicrobial activity with the zone of inhibition ranging from 7 to 14 mm. In the thrombolytic assay, the carbon tetrachloride soluble partitionate showed the highest clot lysis (30.48%). This is the first report of the comprehensive investigations of different extractives of A. dichotoma for the abovementioned bioassays. DOI: http://dx.doi.org/10.3329/bpj.v17i2.22337 Bangladesh Pharmaceutical Journal 17(2): 177-181, 2014


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