scholarly journals Phytochemical screening and in-vitro antibacterial and DPPH free radical scavenging activities of methanol extract of root of Combretum album Pers.

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Sunanda Burman ◽  
Goutam Chandra
Keyword(s):  
Functional Groups ◽  
Methanol Extract ◽  
Methanolic Extract ◽  
Radical Scavenging ◽  
Chloroform Fraction ◽  
Active Ingredients ◽  
Ic50 Value ◽  
Ft Ir ◽  
Ir Analysis

The objective of the study was to investigate in-vitro antibacterial and antioxidant activities of methanolic extract of Combretum album Pers. root. In brief antibacterial efficacies of methanol extract and its petroleum ether fraction (MePET), chloroform fraction (MeCH), ethyl acetate fraction (MeEA) and water fraction (MeAQ) were determined by agar well diffusion assay along with Minimum Inhibitory Concentrations (MICs). In-vitro antioxidant efficacies were evaluated by DPPH radical scavenging method. Preliminary phytochemical assay, Fourier Transform Infrared Spectroscopy and Gas Chromatography-Mass Spectroscopy analyses were employed to detect the plausible active ingredients. Methanol extract showed broad spectrum antibacterial activity having highest inhibition zone against Staphylococcus aureus MTCC 2940 (21.67±0.58 mm) and MICs ranged from100 µg/ml to 250 µg/ml. The scavenging activity of methanol extract of root of C. album was concentration dependant and IC50 value was 136.08 µg/ml. The lowest MIC (5 µg/ml) was noted with MeCH against B. subtilis (MTCC 441). MeCH showed highest antioxidant activity with an IC50 value of 12.98 ?g/mL and MePET, MeEA, MeAQ and Ascorbic acid presented antioxidant potential with IC50 values of 16.10, 15.07, 17.44 and 13.40??g/mL respectively. Preliminary phytochemical tests and FT-IR analysis revealed presence of various phytochemicals and functional groups like hydroxyl, carboxylic acids, amidines, amines, aromatics and esters. Three compounds were elucidated from bioactive TLC fraction of MeCH in GC-MS analysis supported by presence of various functional groups in MeCH as detected in FT-IR analysis. It is concluded that methanolic extract of C. album root is a potential antibacterial and antioxidant agent where presence of N-[5-[4-pyridinyl)-1H-1,2,4-triazol-3-yl]-benzamide (compound 1), pyruvic acid (compound 2) and methyloacetone (compound 3) are responsible as possible active ingredients.

scholarly journals Vachellia farnesiana (L.) Wight & Arn. Growing in Bangladesh Exerts In-vitro Antioxidant and In-vivo Analgesic and Anti-diarrheal Activities

2020 ◽  
Vol 23 (2) ◽  
pp. 181-186
Author(s):  
Md Sadman Hasib ◽  
Md Sazzadul Bari ◽  
Akhteruzzaman Chowdhury ◽  
Md Aslam Hossain ◽  
Mohammad A Rashid
Keyword(s):  
Body Weight ◽  
Methanol Extract ◽  
Phenolic Content ◽  
Radical Scavenging ◽  
Total Phenolic ◽  
Tail Flick ◽  
Vitro Assay ◽  
Ic50 Value ◽  
Analgesic Activities

The present study was conducted to evaluate the antioxidant, antidiarrheal and analgesic activities of Vachellia farnesiana (L.) Wight & Arn. The methanol extract of V. farnesiana and its different fractionates were subjected to in-vitro assay for the determination of total phenolic content and antioxidative potential. The ethyl acetate soluble fraction (EASF) exhibited the highest free radical scavenging capacity (IC50 value of 21.49 ± 1.04 μg/ml) as compared to that exhibited by the standard butylated hydroxyl toluene (BHT) (IC50 value of 20.41 ± 0.05 μg/ml). Such prominent antioxidative potential was further reinforced by a phenolic content of 39.26 ± 0.85 mg of gallic acid equivalent per gram of extract. The plant extract, at the dose of 400 mg/kg body weight, reduced castor oil-induced diarrhea in mice model by a statistically significant (p < 0.05) margin of 47.62%, while the standard loperamide produced 66.67% reduction of diarrheal feces. The central and peripheral analgesic activities of the crude methanol extract of V. farnesiana (MEVF) was determined by tail flick- and acetic acidinduced writhing methods, respectively, in Swiss albino mice. In the tail flick method, oral administration of MEVF at doses of 200 and 400 mg/kg body weight exhibited 221.09 and 237.09% elongation of pain response time, respectively, after 90 minutes of administration whereas the standard morphine effectuated 518.34% elongation within the same time. Furthermore, the same doses of the extract illustrated 63.27 and 69.39% reductions, respectively, in the acetic acid-induced abdominal constrictions in mice. Compared to the standard acetylsalicylic acid with 75.51% inhibition, statistically significant (p < 0.05) peripheral analgesic activity was established. The results of the present investigations suggest that methanol extract of V. farnesiana possesses antioxidant, antidiarrheal and analgesic activities which eventually indicates the presence of biologically important phytoconstituents within the plant that needs further exploration. Bangladesh Pharmaceutical Journal 23(2): 181-186, 2020

scholarly journals Extraction of Dyes from Sunflower Petal and Their Fourier Transform Infrared Characterization

2022 ◽  
Vol 3 (2) ◽  
Author(s):  
Gboyega Oluwaseun Oyeleke ◽  
Ibraheem Abimbade Abdulazeez ◽  
Ajisola Agnes Adebisi ◽  
Kehinde Nasiru Oyekanmi ◽  
Segun Olaitan Akinbode
Keyword(s):  
Fourier Transform ◽  
Helianthus Annuus ◽  
Functional Groups ◽  
Methanolic Extract ◽  
Fourier Transform Infrared ◽  
Infrared Spectrometry ◽  
Fourier Transform Infrared Spectrometry ◽  
Naoh Solution ◽  
Ft Ir ◽  
Ir Analysis

Three solvents of different polarities (water, methanol and 1% NaOHsolution) were used to extract dyes that produced different shades fromdried sunflower (Helianthus annuus) petal. The extraction proceduresusing different solvent types were carried out separately. The dye extractswere thereafter subjected to Fourier Transform Infrared Spectrometry(FT-IR) analysis for characterization in terms of functional groups. Theintensities of the extracted dyes on the shade of colours obtained on piecesof cotton material varied from yellow in methanolic extract to light yellowin aqueous and black in 1% NaOH solution extracts. The results obtainedfrom the FT-IR analysis revealed the presence of several useful functionalgroups such as N-H, C=H, O-H and C=O in the extracts.

Phytochemical and antimicrobial analyses of Plectranthus amboinicus leaf extracts

2021 ◽  
pp. 6379-6384
Author(s):  
M.S. Sindhu ◽  
Poonkothai M.
Keyword(s):  
Antimicrobial Activity ◽  
Petroleum Ether ◽  
Functional Groups ◽  
Leaf Extract ◽  
Methanol Extract ◽  
Leaf Extracts ◽  
Fungal Isolates ◽  
Ft Ir ◽  
Ir Analysis ◽  
Plectranthus Amboinicus

The present study is to evaluate the phytochemical constituents and antimicrobial activity of Plectranthus amboinicus leaf extract using petroleum ether, methanol and water as solvents. The antimicrobial activity of P. amboinicus leaf extracts were examined against the selected bacterial and fungal isolates namely Escherichia coli, Staphylococcus aureus and Aspergillus niger, Candida albicans using agar well diffusion method. FT –IR analysis was performed to identify the presence of functional groups in the methanol extract. The results of the study revealed the presence of distinctive active secondary metabolites in the tested leaf extract. The results revealed that the methanol extract exhibited maximum antimicrobial activity against the tested bacterial and fungal isolates when compared with aqueous and petroleum ether extracts. The FT-IR analysis reveals the presence of functional groups such as hydroxyl, amines, alkynes, ketones and carboxylic acid in the methanolic extract of P. amboinicus. Thus, P. amboinicus leaves are effective against the selected microbes and recommends that the plant derived phytochemicals are comparatively safer than synthetic alternative, thereby contributing insightful remedial benefits for the treatment of diseases.

scholarly journals Assessment of Antioxidant effect of the essential oil and methanol extract of Centaurea dimorpha Viv. aerial parts from Algeria.

2019 ◽  
Vol 6 (1) ◽  
pp. 54-62
Author(s):  
Abdelwahab Belkassam ◽  
Amar Zellagui ◽  
Noureddine Gherraf ◽  
Guido Flamini ◽  
Pier Luigi Cioni ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Methanol Extract ◽  
Methanolic Extract ◽  
Radical Scavenging ◽  
Gas Chromatography Mass Spectrometry ◽  
Tetradecanoic Acid ◽  
Aerial Parts ◽  
In Vitro Antioxidant Activity

Abstract The essential oils obtained by hydrodistillation of aerial parts of Centaurea dimorpha Viv. were analyzed by means of gas chromatography-mass spectrometry (GC-MS). The main constituents were Caryophyllene oxide (09.88%), limonene (5.73%), tetradecanoic acid (5.68%), spathulenol (5.44%), methyl hexadecanoate (4.45%), and α-pinene (03.08%). To our best knowledge this is the first study of essential oils from the aerial parts of Centaurea dimorpha growing in Algeria. Moreover the essential oil and methanolic extract were screened for their possible in vitro antioxidant activity by DPPH free radical-scavenging test. The findings showed that the percentage inhibition is 10.67 and 77.01 respectively at a concentration of 1mole/L.

scholarly journals XANTHINE OXIDASE INHIBITORY ACTIVITY OF RHUS MYSORENSIS LEAVES

2018 ◽  
Vol 11 ◽  
Author(s):  
Vivekanandan K ◽  
Bhavya E ◽  
Stalin C
Keyword(s):  
Xanthine Oxidase ◽  
Leaf Extract ◽  
Methanol Extract ◽  
Methanolic Extract ◽  
Inhibiting Activity ◽  
Inhibition Concentration ◽  
Ic50 Value ◽  
Essential Enzyme ◽  
Preclinical And Clinical Studies

Objective: The objective of this study was to assess the in vitro xanthine oxidase (XO) inhibiting activity of the methanolic leaf extract of the Rhusmysorensis.Methods: Uric acid is synthesized in the presence of XO which is an essential enzyme. Various concentrations of the leaf extract were taken. XO inhibiting activity was spectrophotometrically assayed. By increasing absorbance at 295 nm, the degree of enzyme spontaneity was determined.Results: Inhibition concentration 50 (IC50) of the methanolic extract of R. mysorensis leaves was 45.24±0.34 μg/ml, compared with IC50 value of the standard allopurinol of 7.8±1.28 μg/ml.Conclusion: Methanol extract of R. mysorensis can be used to treat hyperuricemia and gout after proper preclinical and clinical studies.

scholarly journals In –vitro Antioxidant Activity of Methanolic Extract of the Roots of Bergenia ciliata

2018 ◽  
Vol 1 (4) ◽  
pp. 31-34
Author(s):  
Suman Lal Shrestha ◽  
Suresh Awale ◽  
Surya Kant Kalauni
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Methanolic Extract ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Ic50 Value ◽  
Free Radical Scavenging Assay ◽  
Radical Scavenging Assay ◽  
In Vitro Antioxidant Activity

Bergenia ciliata is an essential medicinal plant used in regions where western medicines are inaccessible due to their unavailability and high cost. The methanolic extract of Bergenia ciliataroots was separated for phytochemical elements and in-vitro antioxidant activity. The plant extract showed the rich outgrowth of secondary metabolites that play the role for biological activities. The higher antioxidant functioning of the plant is due to the occurrence of reactive elements like phenols and flavonoids. The antioxidant functioning of the plant extract was measured by DPPH free radical scavenging assay. In DPPH free radical scavenging assay the IC50 value of Bergenia ciliata was found to be 11.21μg/mL, while the IC50 value of standard ascorbic acid was found to be 45.93μg/mL

scholarly journals Spectral analysis, in vitro cytotoxicity and antibacterial studies of bioactive principles from the leaves of Conocarpus lancifolius, a common tree of Jazan, Saudi Arabia

2023 ◽  
Vol 83 ◽  
Author(s):  
S. S. Moni ◽  
M. F. Alam ◽  
M. H. Sultan ◽  
H. A. Makeen ◽  
H. A. Alhazmi ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Breast Cancer Cells ◽  
In Vitro Cytotoxicity ◽  
Coumaric Acid ◽  
Ic50 Value ◽  
Ft Ir ◽  
Ir Analysis ◽  
Common Tree ◽  
Mcf 7

Abstract The objective of the present study was to analyse the bioactive compounds of the leaves of Conocarpus lancifolius (C. lancifolius). The GC-MS analysis of the hot methanolic extract of the leaves (HMEL) of C. lancifolius exhibited the bioactive compounds such as 1-(3-Methoxy-2-nitrobenzyl) iso quinoline, morphin-4-ol-6,7-dione, 1-bromo-N-methyl-, phytol, hexadecanoic acid, 2,3-dihydroxypropyl ester, 2,2':4',2”-terthiophene, ethyl iso-allocholate, caryophyllene oxide, campesterol, epiglobulol, cholestan-3-ol, 2-methylene-, (3á,5à)-, dasycarpidan-1-methanol, acetate (ester) and oleic acid, eicosyl ester. The FT-IR analysis of HMEL of C. lancifolius showed a unique peak at 3184, 2413, 1657 cm-1 representing coumaric acid, chlorogenic acid and ferulic acid. The HMEL of C. lancifolius was actively inhibiting the proliferation of breast cancer cells MCF-7 ATCC at the concentration of 72.66 ± 8.21 µg/ml as IC50 value. The HMEL of C. lancifolius also revealed a good spectrum of activity against Gram-positive and Gram-negative bacterial cultures screened in this work. The activity observed has shown more or less similar effects against screened bacteria. However, the magnitude of potentiality was significantly lesser compared to standard ciprofloxacin disc at p< 0.001 level (99% confidence intervals). Furthermore, the study demonstrating the bioactive compounds can be isolated from the leaves of C. lancifolius.

scholarly journals GC-MS Profiling, Invitro Antidiabetic, Antioxidant and Antimicrobial Activities of a Novel Polyherbal Formulation

2020 ◽  
pp. 590-596
Author(s):  
Chandra Mohan Shanmugavadivelu ◽  
Namrata Jain ◽  
Anand Thirupathi ◽  
Priya Murugesan
Keyword(s):  
Methanol Extract ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Antimicrobial Activities ◽  
Inhibitory Effects ◽  
Related Condition ◽  
Polyherbal Formulation ◽  
Ic50 Value ◽  
Dpph Scavenging

In the present study the methanol extract of a novel polyherbal formulation (PHF) was studied for alpha (α)- amylase and alpha (α)-glucosidase inhibition using an in vitro antidiabetic model. The polyherbal extract were also examined for its antioxidant activity by using free radical 1,1-diphenyl-2-picryl hydrazyl (DPPH) scavenging method. The study revealed that the polyherbal formulation exhibit potent radical scavenging activity using DPPH as substrate. The methanol extract exhibited significant α-amylase and α-glucosidase inhibitory activities with an IC50 value 31.52±0.74µg and 53.13±0.97µg respectively and well compared with standard acarbose drug. Further, antibacterial activity of methanol extract of PHF valuated against standard strains, the tested extract showed more potent inhibitory effects on both Gram (+) bacteria and  Gram (-) bacteria. Thus, it could be concluded that due the presence of antioxidant components the plant extract have well prospective for the management of diabetes and the related condition of oxidative stress. This knowledge will be useful in finding more potent antidiabetic principle from the natural resources for the clinical development of antidiabetic therapeutics.

scholarly journals Microwave-Assisted Synthesis, Characterization, Antimicrobial and Antioxidant Activity of Some New Isatin Derivatives

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
G. Kiran ◽  
T. Maneshwar ◽  
Y. Rajeshwar ◽  
M. Sarangapani
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Radical Scavenging ◽  
Microwave Assisted Synthesis ◽  
Stable Free Radical ◽  
Ft Ir ◽  
Antimicrobial And Antioxidant Activity ◽  
New Compounds ◽  
Isatin Derivatives

A series of β-Isatin aldehyde-N,N′-thiocarbohydrazone derivatives were synthesized and assayed for theirin vitroantimicrobial and antioxidant activity. The new compounds were characterized based on spectral (FT-IR, NMR, MS) analyses. All the test compounds possessed a broad spectrum of activity having MIC values rangeing from 12.5 to 400 μg/ml against the tested microorganisms. Among the compounds3e,3jand3nshow highest significant antimicrobial activity. The free radical scavenging effects of the test compounds against stable free radical DPPH (α,α-diphenyl-β-picryl hydrazyl) and H2O2were measured spectrophotometrically. Compounds3j,3n,3l, and3e, respectively, had the most effective antioxidant activity against DPPH and H2O2scavenging activity.

scholarly journals Hepatoprotective studies on methanolic extract fractions of Lindernia ciliata and development of qualitative analytical profile for the bioactive extract

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Praneetha Pallerla ◽  
Narsimha Reddy Yellu ◽  
Ravi Kumar Bobbala
Keyword(s):  
Methanolic Extract ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Liver Homogenate ◽  
Reducing Power ◽  
Hepatoprotective Activity ◽  
Total Phenolic ◽  
Effective Fraction

Abstract Background The objective of the study is to evaluate the hepatoprotective activity of methanolic extract fractions of Lindernia ciliata (LC) and development of qualitative analytical profile of the bioactive fraction using HPLC fingerprinting analysis. All the fractions of methanolic extract of Lindernia ciliata (LCME) are assessed for their total phenolic, flavonoid contents and in vitro antioxidant properties by using DPPH, superoxide, nitric oxide, hydroxyl radical scavenging activities and reducing power assay. Acute toxicity study was conducted for all the fractions and the two test doses 50 and 100 mg/kg were selected for the hepatoprotective study. Liver damage was induced in different groups of rats by administering 3 g/kg.b.w.p.o. paracetamol and the effect of fractions were tested for hepatoprotective potential by evaluating serum biochemical parameters and histology of liver of rats. The effective fraction was evaluated for its antihepatotoxic activity against D-Galactosamine (400 mg/kg b.w. i.p.) and in vivo antioxidant parameters viz., Glutathione (GSH), Melondialdehyde (MDA) and Catalase (CAT) levels are estimated using liver homogenate. Results Among all the fractions, butanone fraction of LCME, (BNF-LCME) has shown better hepatoprotective activity and hence it is selected to evaluate the antihepatotoxicity against D-GaIN. The activity of BNF-LCME is well supported in in vitro and in vivo antioxidant studies and may be attributed to flavonoidal, phenolic compounds present in the fraction. Hence, BNF-LCME was subjected to the development of qualitative analytical profile using HPLC finger printing analysis. Conclusions All the fractions of LCME exhibited significant hepatoprotective activity and BNF-LCME (50 mg/kg) was identified as the most effective fraction.

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