scholarly journals ANTIFUNGAL APPRAISAL OF BURKHOLDERIA GLADIOLI STRAIN VIMP03 (JQ867372) AGAINST CERATOCYSTIS PARADOXA

2017 ◽  
Vol 10 (3) ◽  
pp. 221
Author(s):  
Shrikumar Vijaykumar Mahamuni ◽  
Nitin Sadashiv Shinde ◽  
Prakash Vitthal Wani ◽  
Ashok Sitaram Patil
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Ethyl Acetate ◽  
Culture Filtrate ◽  
Ethyl Acetate Extract ◽  
Gas Chromatography Mass Spectrometry ◽  
Dual Culture ◽  
Chromatography Mass Spectrometry ◽  
Burkholderia Gladioli ◽  
Ceratocystis Paradoxa

ABSTRACTObjective: The purpose of the present investigation was to assess antifungal characterization of Burkholderia gladioli strain VIMP03 (JQ867372), anisolate from sugar beet rhizosphere.Methods: Antifungal characterization was carried out by biochemical, dual culture, and agar well diffusion methods against Ceratocystis paradoxa, asoilborne pathogen of sugarcane and other crops. Culture filtrate and ethyl acetate extract obtained from culture supernatant were analyzed by highperformanceliquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) analyses, respectively.Results: The culture filtrate and ethyl acetate extract exhibited effective antifungal activity. Organic acid profile of the culture filtrate was determined.Acetic acid was mainly produced by the culture under study. The GC-MS analysis of ethyl acetate extract documented the presence of compoundsincluding tetratetracontane, 9-nonadecene, erucic acid, and other hydrocarbon derivatives.Conclusion: The GC-MS, HPLC, and biochemical profiles of B. gladioli strain VIMP03 (JQ867372) revealed its agro clinical-antifungal potential.Keywords: Antifungal, Burkholderia gladioli, High-performance liquid chromatography, Gas chromatography-mass spectrometry.

scholarly journals GCMS ANALYSIS OF ENDOPHYTIC FUNGI CURVULARIA AERIA MTCC-12847 ISOLATED FROM TRIBULUS TERRESTRIS L.

2019 ◽  
pp. 26-32
Author(s):  
Kamana Sahani ◽  
DEEPENDRA THAKUR
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Secondary Metabolites ◽  
Ethyl Acetate ◽  
Endophytic Fungi ◽  
Active Compound ◽  
Ethyl Acetate Extract ◽  
Gas Chromatography Mass Spectrometry ◽  
Tribulus Terrestris ◽  
Chromatography Mass Spectrometry

Objective: The objective of the present investigation was to perform the Gas Chromatography-mass spectrometry (GCMS) analysis of endophytic fungi Curvularia aeria MTCC-12847 isolated from Tribulus terrestris L. to find out the active compound present in the extract. Methods: The endophytic fungi were isolated from the plant Tribulus Terrestris L., leaf which was cultivated in optimized media for the production of secondary metabolites and was extracted using ethyl acetate. Ethyl acetate extract was used for the Gas Chromatography-mass spectrometry (GCMS) analysis. Results: GC-MS analysis of ethyl acetate extract of endophytic fungi revealed the presence of various secondary metabolites, the highest amount present was Palmitic acid (24.54%) and Lowest was Dimethyl 1-phenyl-7-methyl-1-hydroxy-1,4-dihydronaphthalene-2,3-dicarboxylate (5.76%). Conclusion: The endophytic fungal Curvularia aeria MTCC-12847 extract isolated from the Tribulus terrestris L. shows the presence of various bioactive compounds.

scholarly journals GC-MS Analysis of Methanol and Ethyl Acetate Extract of fruits of Sphaeranthus indicus

2019 ◽  
Vol 9 (2) ◽  
pp. 28-30
Author(s):  
Kalpana Garg ◽  
Birendra Shrivastava ◽  
Anurag Bhargava
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Ethyl Acetate ◽  
Methanol Extract ◽  
Ethyl Acetate Extract ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Ms Analysis ◽  
Sphaeranthus Indicus

Introduction: To identify the various phytoconstituents present in the plant Sphaeranthus indicus by using gas chromatography and mass spectrometry. Meth­ods: The fruits of Sphaeranthus indicus were extracted with Different solvents of increasing polarity. The methanol and ethylacetate extract were subjected to GCMS analysis to detect the phytoconstituents. Results: Totally 26 compounds were identified. Among these 13 constituents in methanol extract and 13 constituents in ethylacetate extract were identified during the GC-MS analysis. Stigmasterol and lupeol which were identified in the plant is considered to have antiarthritic properties. Keywords: Sphaeranthus indicus, Gas chromatography, Mass spectrometry.

scholarly journals EVALUATION OF ANTIOXIDANT, ANTIBACTERIAL, AND GAS CHROMATOGRAPHY-MASS SPECTROMETRY ANALYSIS OF ETHYL ACETATE EXTRACT OF STREPTOMYCES OMIYAENSIS SCH2

2018 ◽  
Vol 11 (7) ◽  
pp. 271 ◽  
Author(s):  
Janpen Tangjitjaroenkun
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Ethyl Acetate ◽  
Ethyl Acetate Extract ◽  
Chemical Constituents ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Antioxidant Power ◽  
Chromatography Mass Spectrometry ◽  
Ms Analysis

Objective: The aim of this study was to evaluate the antibacterial and antioxidant properties of ethyl acetate extract of Streptomyces omiyaensis SCH2. The chemical constituents of the extract were investigated using gas chromatography-mass spectrometry (GC-MS).Methods: Secondary metabolites from S. omiyaensis were produced by submerge fermentation using ISP2 medium with 3% NaCl (w/v) for 21 days. The culture filtrate was extracted with ethyl acetate. The chemical constituents were detected in the GC-MS analysis. Antibacterial activity was performed using disc diffusion and broth microdilution methods. Antioxidant activity was evaluated by determining the reducing power capacity and free radical scavenging assays.Results: The GC-MS analysis of the SCH2 extract revealed the presence of four compounds. The main constituents were 2-phenylacetamide (79%). The extract exhibited the highest zone of inhibition against some pathogenic bacteria such as Enterobacter cloacae, Klebsiella pneumoniae, and Bacillus subtilis. In addition, the lowest minimum inhibitory concentration (IC) and minimum bactericidal concentration values of extract were obtained for E. cloacae (0.125 and 4 mg/ml). The extract showed antioxidant potential with IC50 values of 2.078.13±24.58 μg/ml and 475.74±4.56 μg/ml for 2,2-diphenyl-1-picryl-hydrazyl and 2,2′-azino-bis[3-ethylbenzothiazoline-6-sulphonic acid] assays, respectively. The ferric reducing antioxidant power value of extract was 110.36±1.75 mmol FeSO4.7H2O/g extract.Conclusion: This study indicated that S. omiyaensis extract possesses antibacterial and antioxidant activities. GC-MS analysis revealed the presence of major chemical constituents, acetamide, and pyrrolopyrazine which could be responsible for the biological activities. S. omiyaensis extract could be used as a potential of natural antibacterial and antioxidant agents for pharmaceutical and medical applications.

BRINE SHRIMPS LETHALITY TEST OF ETHANOL EXTRACT AND GAS CHROMATOGRAPHY-MASS SPECTROMETRY ANALYSIS OF ETHYL ACETATE FRACTION OF BLIGHIA SAPIDA

2020 ◽  
pp. 208-212
Author(s):  
ADEKOLA MB ◽  
AREOLA JO ◽  
ORIYOMI OV ◽  
APATA JT ◽  
APALOWO OE ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Ethyl Acetate ◽  
Brine Shrimp ◽  
Ethanol Extract ◽  
Ethyl Acetate Fraction ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Ms Analysis ◽  
Blighia Sapida

Objective: The objective of the study was to evaluate brine shrimp lethality of Blighia sapida stem-bark extract and its fractions and identify the bioactive constituents in the ethyl acetate fraction (EAF) using gas chromatography-mass spectrometry (GC-MS) technique. Methods: The ethanol extract (EE) and its fractions were subjected to lethality assay, and GC-MS analysis of EAF was carried out. Results: The lethality test showed a concentration-dependent mortality rate in the brine shrimp nauplii for the EE and its fractions. GC-MS analysis of EAF of the extract revealed the existence of 13 peaks of the GC-MS chromatogram with only one prominent compound, n-hexadecanoic acid (peak area of 10.13%). Conclusion: The result revealed the presence of 13 bioactive components in the EAF of the extract, the majority of which have been reported for different biological activities, hence, justifies the use of the plant in the treatment and management of different diseases ethnomedicinally.

ANALYSIS OF SOLVOLYZABLE STEROIDS IN HUMAN PLASMA BY COMBINED GAS CHROMATOGRAPHY - MASS SPECTROMETRY

1968 ◽  
Vol 57 (2) ◽  
pp. 247-260 ◽  
Author(s):  
J. Sjövall ◽  
R. Vihko
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Ethyl Acetate ◽  
Human Plasma ◽  
Sulphuric Acid ◽  
Gas Chromatography Mass Spectrometry ◽  
Peripheral Plasma ◽  
Chromatography Mass Spectrometry ◽  
Steroid Conjugates

ABSTRACT Solvolyzable steroids in human peripheral plasma were separated by chromatography on Sephadex LH-20 into two fractions having the elution volumes of mono- and disulphates, respectively. The steroid conjugates in the latter fraction had the mobility of steroid disulphates on TLC. After solvolysis in ethyl acetate acidified with sulphuric acid the steroids were analyzed by gas chromatography and combined gas chromatography - mass spectrometry. Cholesterol, dehydroepiandrosterone, androsterone, epiandrosterone, aetiocholanolone, pregnenolone, pregn-5-ene-3β,20α-diol, androst-5-ene-3β,17β-diol, androst-5-ene-3β,17α-diol and an androstanediol, most probably 5α-androstane-3α,17β-diol were found in the monosulphate fraction. Androst-5-ene-3β,17β-diol, androst-5-ene-3β,17α-diol and pregn-5-ene-3β,20α-diol were found in the disulphate fraction. The ratio of C19 to C21 diols was higher in the disulphate than in the monosulphate fraction.

scholarly journals Determination of Bitertanol Residues in Strawberries by Liquid Chromatography with Fluorescence Detection and Confirmation by Gas Chromatography/Mass Spectrometry

1998 ◽  
Vol 81 (6) ◽  
pp. 1252-1256 ◽  
Author(s):  
Yoshie Yamazaki ◽  
Takahiro Ninomiya
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Liquid Chromatography ◽  
Ethyl Acetate ◽  
Fluorescence Detection ◽  
Solid Phase ◽  
Internal Standard ◽  
Gas Chromatography Mass Spectrometry ◽  
Internal Standard Method ◽  
Chromatography Mass Spectrometry

Abstract A simple and rapid method was developed for determining bitertanol residues in strawberries. Bitertanol was extracted from samples with ethyl acetate. Bitertanol acetate was added prior to extraction as a surrogate standard. The ethyl acetate extract was cleaned up by passing through tandem solid-phase extraction columns consisting of anion-exchange (SAX) and aminopropyl (NH2) bonded silica. The eluate was evaporated to dryness and reconstituted with methanol. Bitertanol residues were determined by liquid chromatography with fluorescence detection. Recoveries at 4 fortified levels (0.05,0.25,0.5, and 1.0 (µg/g), calculated by the internal standard method, ranged from 92.1 to 99.1 %, with coefficients of variation ranging from 0.3 to 4.0%. The detection limit was 0.01 µg/g. Of 25 commercial strawberry samples analyzed for bitertanol residues, 5 contained bitertanol residues at concentrations ranging from 0.02 to 0.51 µg/g. Positive samples were confirmed by gas chromatography/mass spectrometry with mass-selective detection (m/z 170 and 168).

scholarly journals GAS CHROMATOGRAPHY-MASS SPECTROMETRY ANALYSIS, IN VITRO CYTOTOXIC AND ANTIOXIDANT EFFICACY STUDIES ON CLEOME GYNANDRA L. (LEAVES): A TRADITIONAL DRUG SOURCE

2017 ◽  
Vol 10 (10) ◽  
pp. 84
Author(s):  
Renuka Saravanan ◽  
Brindha Pemaiah ◽  
Mahesh Narayanan ◽  
Sivakumar Ramalingam
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Free Radical ◽  
Ethyl Acetate ◽  
Ethyl Acetate Extract ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Gas Chromatography Mass Spectrometry ◽  
Cleome Gynandra ◽  
Mcf 7

  Objective: This study was aimed to assess the phytoconstituents, cytotoxic, and antioxidant efficacy of ethyl extract of Cleome gynandra leaves.Methods: Qualitative phytochemical analysis with different solvent extracts was performed. Quantitative and gas chromatography-mass spectrometry (GC-MS) analysis of the extract was performed with ethyl acetate extract. The cytotoxic effect of the ethyl acetate extract was determined by 3-[4,5-dimethylthiazol-2-yl]2,5-diphenyltetrazolium bromide (MTT) assay on Michigan Cancer Foundation-7 (MCF-7) cells using taxol as standard and free radical scavenging ability using 1,1-diphenyl-2-picrylhydrazyl (DPPH).Results: Leaves extracts with different solvents revealed the presence of alkaloids, cardiac glycosides, flavonoids, phenols, and tannins. GC-MS analysis of ethyl acetate of the plant leaves showed the presence of n-hexadecanoic acid. The IC50 value of the ethyl acetate extract was found to be 90.2 μg/ml on MCF-7 cell line, and the extract was found to possess significant DPPH free radical scavenging activity.Conclusion: From the results, we conclude that the C. gynandra extract possesses antioxidant and antiproliferating activity against MCF-7 cells.

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