scholarly journals GC-MS ANALYSIS OF PHYTOCHEMICAL CONSTITUENTS IN THE PETROLEUM ETHER LEAF EXTRACTS OF MILLETTIA PEGUENSIS

2017 ◽  
Vol 8 (9) ◽  
pp. 144-150 ◽  
Author(s):  
Manikandan G ◽  
Vimala Rani A ◽  
Divya C ◽  
Ramasubbu R
Author(s):  
Ruthiran Papitha ◽  
Lokesh Ravi ◽  
Chinnadurai Immanuel Selvaraj

Objective: The present study was performed to identify the phytochemical constituents of leaves and flowers of a plant Spermadictyon suaveolens extracted with four different solvents.Methods: Dried and powdered samples were subjected to soxhlation based on the polarity of the solvents. The extracts were scanned using Ultra Violet-visible (UV-Vis) spectrophotometry with the wavelength ranging from 200–800 nm by comparing the absorption spectrum with the spectra of known compounds, Fourier Transform Infrared (FT-IR) spectrometry was used to find out the functional groups of the compounds and GC-MS system consisting of a Perkin Elmer Technologies Model Clarus 680 GC equipped with Clarus 600 (EI) was used to identify the metabolites by matching their recorded mass spectra with the standard mass spectra from National Institute of Standards and Technology (NIST05. LIB) libraries provided by the software of the GCMS system (TurboMass version 5.4.2).Results: The phytochemical tests indicated the presence of carbohydrates, alkaloids, flavonoids, phenols, tannins, saponins and terpenoids from the chloroform extract of leaves and flowers. UV-visible spectrophotometer results indicated a wavelength range between 230–660 nm for the flower and leaf extracts for major peaks. FT-IR analysis indicated major functional groups such as aromatic, primary, secondary and aliphatic amines, alkanes, carboxylic acids and amides. GC-MS analysis results revealed major bioactive compounds in the crude extracts.Conclusion: Presence of secondary metabolites has been identified from the phytochemical studies. Many phyto-compounds have been identified from the leaves and flowers of using GC-MS analysis. Hence, this medicinal plant may be used as a source for treating many diseases.


Author(s):  
Prabhat Kumar Das ◽  
Jai Singh Vaghela ◽  
Narendra Badore

Objective: The aim of the study is to investigate the Phytochemical, Pharmacognostical, Fluorescence analysis and heavy metal testing of the plant Bougainvillea spectabilis (WILLD.). Methods: The plant powder was extracted with different solvents such as petroleum ether, chloroform, ethyl acetate, ethanol, and water. The different extracts were tested qualitatively for the identification of various phytochemical constituents. The plant powder was subjected to fluorescence analysis in daylight and in ultraviolet-light (254 nm and 365 nm) and heavy metal testing. Results: Water soluble extractive value was found to be higher than ethanol, Ethyl acetate, chloroform and petroleum ether. The total ash values were found to be higher followed by water soluble ash and acid insoluble ash. From the phytochemical screening result showed the presence of various phytochemical constituents such as alkaloid, glycoside, Carbohydrate, Flavonoids, Saponins, Terpenoids, Taninns and phytosterols. Fluorescence analysis of leaf powder of Bougainvillea spectabilis showed characteristic coloration with various chemicals. The presence of heavy metals like cobalt, mercury, nickel, silver and zinc were found negative. Conclusion: Thus the bioactive natural products in leaf extracts of Bougainvillea spectabilis can be used in the development of new pharmaceuticals that enhances therapeutic use.


Author(s):  
Shubhaisi Das ◽  
Sunanda Burman ◽  
Goutam Chandra

Background: The only remedy for up surging problem of antibiotic resistance is the discovery of antibacterial agents of natural origin. Objective: The present study was aimed at finding antibacterial potential of crude and solvent extracts of mature leaves of Plumeria pudica. Methods: Antibacterial activity of three different solvent extracts were evaluated in four human and four fish pathogenic bacteria by measuring the zone of inhibition and determining Minimum Inhibitory Concentration and Minimum Bactericidal Concentration values. Standard antibiotics were used as positive control. Preliminary phytochemical screening of most effective extract i.e., ethyl acetate extract, Fourier Transform Infra Red analysis and GC-MS analysis of the Thin Layer Chromatographic (TLC) fraction of ethyl acetate extract were done meticulously. All experiments were done thrice and analyzed statistically. Results: Crude leaf extracts and solvent extracts caused good inhibition of bacterial growth in all selected bacteria. Ethyl acetate extract showed highest inhibition zones in all tested strains with maximum inhibition (19.50±0.29 mm) in Escherichia coli (MTCC 739). MBC/MIC of the extracts indicated that all three solvent extracts were bactericidal. Preliminary phytochemical tests revealed the presence of tannins, steroids and alkaloids and FT-IR analysis revealed presence of many functional groups namely alcoholic, amide, amine salt and aldehyde groups. From the GC-MS analysis of TLC fraction of ethyl acetate extract five different bioactive compounds e.g., 2,4-ditert –butylphenyl 5-hydroxypentanoate, Oxalic acid; allyl nonyl ester, 7,9-Ditert-butyl-1-oxaspiro(4,5)deca-6,9-diene-2,8-dione, Dibutyl phthalate and 2,3,5,8-tetramethyl-decane were identified. Conclusion: Leaf extracts of P. pudica contain bioactive compounds that can be used as broad spectrum bactericidal agent.


2021 ◽  
Vol 50 (1) ◽  
pp. 61-68
Author(s):  
Tahseen Ghous ◽  
Kalsoom Akhtar ◽  
Saiqa Andleeb ◽  
Saira Khizar ◽  
Shaukat Ali ◽  
...  

The results of antioxidant assays with Gymnema sylvestre leaf extracts revealed that methanol, acetone, and aqueous extracts possessed maximum DPPH (83, 83, and 75%) and ABTS scavenging potential (85, 71, and 82%). Chloroform possessed maximum total flavonoid (24.6 mg/100 ml) and total iron contents (435.3 ± 0.0125 mg FeSO4 E/G). The extracts of n-hexane, ethyl acetate, and chloroform of Gymnema sylvestre leaves displayed an IC50 value of 170.2, 44.4, 131.6 μg/ml, respectively in α-glucosidase inhibition assay. Methanol and aqueous extracts showed maximum inhibition of E. ammni (17 ± 2.0 and 19.6 ± 0.57 mm), E. coli (15.3 ± 0.57 and 17.6 ± 0.57 mm), and S. aureus (16.6 ± 1.52 and 19.3 ± 1.15 mm). It may be concluded that all potential effects of G. sylvestre leaf extracts were due to the presence of phytochemical constituents such as flavonoids, steroids, quinones, phenols, triterpenoids, tannins, alkaloids, and saponins. Present findings suggest that these extracts present a satisfactory source for the preparation of antioxidant and antidiabetic medicines.


Author(s):  
Vinodhini Velu ◽  
Swagata Banerjee ◽  
Vidya Rajendran ◽  
Gaurav Gupta ◽  
Dinesh Kumar Chellappan ◽  
...  

Aims: The present investigation was aimed at exploring the phytoconstituents using Gas Chromatography Mass Spectroscopy and to evaluate antioxidant and anti-inflammatory properties of the leaf extracts. Materials and Methods: The extracts were obtained sequentially with petroleum ether, ethyl acetate and water using soxhlet apparatus. The anti-inflammatory property of the identified compounds using GC- MS spectroscopy was evaluated in silico. The antioxidant activity was performed by DPPH and H2O2 method whereas anti-inflammatory study was carried out by HRBC membrane stabilization method. Terpenoids were found to be major constituents in petroleum ether extract while, phenols and flavonoids were predominantly found in ethyl acetate extract. Results and Discussion: The GC-MS analysis of the extract revealed six major molecules including Squalene, 19β, 28- epoxyleanan-3-ol and 2-tu-Butyl-5-chloromethyl-3-methyl-4-oxoimidazolidine-1-carboxylic acid. The ethyl acetate extract showed a significant antioxidant activity (P<0.01) in both DPPH method (70.87 %) and H2O2 method (73.58%) at 200 µg mL-1 . Increased membrane stabilization of petroleum ether extract was observed in the in vitro anti-inflammatory activity study. A strong relationship between the terpenoid content and anti-inflammatory activity was obtained from the correlation (0.971) and docking study. Conclusion: These results justify T. involucrata to be a rich source of terpenoids with potent antiinflammatory property.


Author(s):  
D. Muthuselvam ◽  
Kathick Kathick

Delonix elata L., belongs to family Fabaceae used by the traditional various medicinal practices to cure jaundice, skin disease, heart disease, cancer cell formation, physiological abnormalities, heptoprotective, bronchial and rheumatic problems. The present study was screen the antimicrobial and phytochemical activity of alkaloid leaf extracts. This extracts was assessed on multidrug resistant clinical isolated from both gram positive, gram negative and antifungal strains including Bacillus subtilis, Staphylococcus aureus, Escherchia coli, Pseudomonas aeruginosa, Candida albicans and Aspergillus niger. The zone of inhibition was determined by Agar well diffusion method with various concentration. GC- MS analysis was performed to identify major bioactive compounds present in the extracts. The GC – MS studies shown the present of 25 compound were identified in the leaf extract composition. The antimicrobial analysis revealed that C. albicans showed a highest zone of inhibition 25mm at 100 mg/ml of extracts. Present finding suggest that D. elata as plant pharmaceutical and pharmacological importance.


Author(s):  
PAULA ALEJANDRA GIRALDO VILLAMIL ◽  
ANDRÉS CAMILO ANDRADE BURBANO ◽  
LUIS POMBO OSPINA ◽  
JANETH ARIAS PALACIOS ◽  
ÓSCAR EDUARDO RODRÍGUEZ AGUIRRE

Objective: The objective of the study was to determine the antimicrobial activity of leaf and flower extract in Chromolaena scabra (L. f.) R.M. King and H. Rob., against selected strains of bacteria and fungi. Methods: The agar diffusion method with plate perforation was developed; the microorganisms used were strains of Staphylococcus aureus and Escherichia coli, Aspergillus niger, and Penicillium digitatum. Rifampicin was used as a positive control. The evaluation was performed by measuring the diameter of the growth inhibition zones around the holes. The inhibitory effect of the plant extracts was obtained by its efficiency compared to the positive control. A comparison with fluconazole and ketoconazole was performed to determine how much of the extract is required to cause inhibition of fungal growth from the standard. Results: IC50 was determined by relating the ln of mass evaluated with respect to the square of the inhibition halo; ethanolic extracts of leaves and flowers of petroleum ether with IC50 values of 85.8 mg/ml and 50.3 mg/ml showed the highest inhibitory effect against S. aureus; the extract of petroleum ether and ethanol from leaves with IC50 of 64 mg/ml and 60 mg/ml, respectively. They were effective with A. niger. Leaf petroleum ether extract showed the best relative antifungal activity against A. niger with respect to fluconazole equivalent to 459.51 when fluconazole is 1.0. Conclusion: The extracts with high potential to inhibit the growth of microorganisms were determined to be ether flowers of petroleum and ethanol leaf extracts.


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