scholarly journals Phytochemical investigation, antioxidant and antibacterial activities, and GC-MS analysis of ethanol extract of Terminalia chebula Retz. dried seeds

2020 ◽  
Vol 5 (3) ◽  
pp. 92-102
Author(s):  
Saraswathi Krishna ◽  
Priyadarshini . ◽  
Arumugam Perumal
Keyword(s):  
Ethanol Extract ◽  
Antibacterial Activities ◽  
Terminalia Chebula ◽  
Ms Analysis ◽  
Phytochemical Investigation

scholarly journals Phytochemical investigation GC-MS analysis and in vitro antimicrobial activity of Coleus forskohlii

2015 ◽  
Vol 10 (4) ◽  
pp. 924 ◽  
Author(s):  
Krishnamoorthy Rajkumar ◽  
Ramaswamy Malathi
Keyword(s):  
Antimicrobial Activity ◽  
Antimicrobial Properties ◽  
Ethanol Extract ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Klebsiella Pneumonia ◽  
Coleus Forskohlii ◽  
Ms Analysis ◽  
Phytochemical Investigation

<p class="Abstract">The aim of this study was to investigate the phytochemical constituents, gas chromatography-mass spectrometry (GC-MS) analysis and antimicrobial activity of <em>Coleus forskohlii</em>. The different solvents such as ethanol, chloroform, acetone and aqueous extracts were identified pharmacologically as important bioactive compounds and their antimicrobial properties were studied. In the phytochemical investigation almost all the ethanol extract of leaf, stem and root having secondary metabolites like alkaloids, flavonoids, tannins, saponins, terpenoids, and steroids. The active constituents of the ethanol extract of <em>C. forskohlii</em> root was studied by GC-MS analysis. According to the antimicrobial results ethanol extract of <em>C. froshkolii</em> root showed highest antibacterial activity compared with stem and leaf. The highest antimicrobial activity was observed against <em>Klebsiella pneumonia</em> (19 mm) and <em>Candida albicans </em>(16 mm) in ethanol extract of root. Among the above extracts of leaf, stem and root, ethanol extract of root having antimicrobial activities due to the presence of phytoconstituents.</p><p class="FigureLegend"> </p>

scholarly journals Phytochemical profiles of Iris unguicularis Poir. with antioxidant, antibacterial, and anti-Alzheimer activities

2020 ◽  
Vol 7 (2) ◽  
pp. 74-87
Author(s):  
Souheir Bensari ◽  
Rayene Ouelbani ◽  
Mustafa Abdullah Yilmaz ◽  
Chawki Bensouici ◽  
Esma Gokalp ◽  
...  
Keyword(s):  
Ion Trap ◽  
Biological Activities ◽  
Folk Medicine ◽  
Ethanol Extract ◽  
Antibacterial Activities ◽  
Endemic Plant ◽  
Phytochemical Content ◽  
Flight Mass Spectrometry ◽  
Phytochemical Investigation ◽  
Quantitative Screening

AbstractPhytochemical investigation of medicinally important plants has gained great attention, lately. This study aims to investigate the phytochemical constituents of the partitioned extracts (ethyl acetate (AI), dichloromethane (CI) and n-butanol (BI)) derived from the 70% ethanol extract of the rhizomes (RI) of Iris unguicularis Poir. an Algerian-Tunisian endemic plant and to evaluate their biological activities. Seventy constituents of these partitioned extracts were qualitatively characterized by liquid chromatography ion trap time of flight mass spectrometry (LC-MS-IT-TOF) technique. Moreover, quantitative screening of phenolic acids and flavonoids in the studied extracts was accomplished by a previously validated LC-MS/MS method. It was determined that, AI and CI, which were the richest extracts in terms of phytochemical content, showed high antioxidant and antibacterial activities in parallel with their identified constituents, while AI extract was rich in protocatechuic (1080.4 µg analyte/g), 4-OH-benzoic (2218.2 µg/g), syringic (1218.6 µg/g) and pcoumaric (1071.2 µg/g) acids, CI extract has been found to be rich in naringenin (1453.4 µg/g) and ferulic acid (1088.4 µg/g). These results revealed and confirmed the importance of the species and especially the genus rhizomes which have largely been used in folk medicine for the treatment of many diseases. However, all extracts of this endemic plant were inactive at all concentration against acetyl-and butyrylcholinesterase enzymes.

scholarly journals Study and comparison of antibacterial activities of extracts of Zataria multiflora and Teucrium polium on Penibacillus alvei

2019 ◽  
Vol 70 (1) ◽  
pp. 1421
Author(s):  
E. REZVANNEJAD ◽  
E. NASIRIFAR ◽  
S. LOTFI ◽  
M. ABDOLINASAB
Keyword(s):  
Honey Bee ◽  
Ethanol Extract ◽  
Antibacterial Activities ◽  
Diffusion Method ◽  
Dilution Method ◽  
Lethal Effects ◽  
Zataria Multiflora ◽  
Methanol Extracts ◽  
Paenibacillus Alvei ◽  
Teucrium Polium

In this study, the antibacterial activity of ethanol and methanol extracts of Zataria multiflora and Teucrium polium was determined against Paenibacillus alvei by disc diffusion method. Paenibacillus alvei is one secondary bacterium for the European foulbrood disease in honey bee. Minimum inhibitory concentration and minimum bactericidal concentration were determined by using the serial dilution method. For this, Z. multiflora and T. polium are collected from different areas of Iran then they are dried and extracted in lab. The antibacterial effect of alcoholic extracts of Z. multiflora and T. polium was lower than usual standard antibiotics (P<0.01), but the ethanol and methanol extracts of Z. multiflora at a concentration of 60mg/ml, have inhibitory and lethal effects on P. alvei. Also, 100mg/ml concentrations of ethanol extract of T. polium has inhibitory and lethal effects on this bacterium. But, the no one of used concentrations of its methanol extract has inhibitory and lethal effects. Results indicated that used extracts of Z. multiflora have the higher antibacterial effects than extract of T. polium on Paenibacillus alvei. It can be concluded that regarding the high antibacterial power of Z. multiflora, it is necessity to work on how they can be used in control and treatment of bacterial honey bee diseases.

scholarly journals GC-MS Analysis of Bio-active Compounds in Ethanol Extract of Putranjiva roxburghii Wall. Fruit Peel

2019 ◽  
Vol 11 (1) ◽  
pp. 146-149
Author(s):  
Md. Mahmudul Hasan ◽  
Md. Rezuan Al Mahmud ◽  
Md. Gaziul Islam
Keyword(s):  
Ethanol Extract ◽  
Fruit Peel ◽  
Active Compounds ◽  
Ms Analysis ◽  
Putranjiva Roxburghii

scholarly journals Antibacterial Compounds from Glycosmis puberula Twigs

2014 ◽  
Vol 9 (12) ◽  
pp. 1934578X1400901
Author(s):  
Cholpisut Tantapakul ◽  
Tawanun Sripisut ◽  
Wisanu Maneerat ◽  
Thunwadee Ritthiwigrom ◽  
Surat Laphookhieo
Keyword(s):  
Antibacterial Activities ◽  
Gram Negative Bacteria ◽  
Isolation And Identification ◽  
Gram Positive ◽  
Antibacterial Compounds ◽  
Gram Negative ◽  
Spectroscopic Analyses ◽  
Phytochemical Investigation ◽  
Reported Data

The first phytochemical investigation of Glycosmis puberula twigs led to the isolation and identification of a new quinolone alkaloid, glycosmispuberulone (1), along with ten known compounds (2–11). The structures were elucidated by spectroscopic analyses and comparison with previously reported data. Their antibacterial activities against Gram-positive and Gram-negative bacteria were also evaluated.

scholarly journals Phytochemical Investigation of the Australian Lichens Ramalina glaucescens and Xanthoria parietina

2009 ◽  
Vol 4 (7) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Daniel A. Dias ◽  
Sylvia Urban
Keyword(s):  
Antibacterial Properties ◽  
Usnic Acid ◽  
2D Nmr ◽  
Antibacterial Activities ◽  
2D Nmr Spectroscopy ◽  
Full Characterization ◽  
Phytochemical Investigation ◽  
Xanthoria Parietina ◽  
Shift Assignment

Phytochemical investigation of the Australian lichen, Ramalina glaucescens resulted in the isolation of a new halogenated depside, 5-chlorosekikaic acid 5, together with (+)-usnic acid 1, sekikaic acid 2, atranorin 6 and parietin 7, the latter of which was isolated from the associated (co-occurring) lichen, X. parietina. Compound 5 is suspected to be an artifact of the isolation procedure. All structures were assigned using spectroscopic methods and mass spectrometry. In addition to the full characterization of 5, this report represents the first application of 2D NMR spectroscopy to complete the unequivocal chemical shift assignment for compounds 2 and 7. Compounds 1-2 and 5-7 all displayed varying degrees of antitumor activity (ranging from an IC50 of 15 μM to >44 μM) with compounds 1, 2 and 5 also displaying antibacterial properties. Of these, (+)-usnic acid 1 displayed the most significant antitumor and antibacterial activities.

scholarly journals Synthesis, Antimicrobial and Antioxidant Activities of 2-Isoxazoline Derivatives

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4271
Author(s):  
Asma Alshamari ◽  
Mahmoud Al-Qudah ◽  
Fedaa Hamadeh ◽  
Lo’ay Al-Momani ◽  
Sultan Abu-Orabi
Keyword(s):  
Antioxidant Activity ◽  
Sulfonic Acid ◽  
Antioxidant Activities ◽  
Bacterial Species ◽  
Antibacterial Activities ◽  
Ms Analysis ◽  
Diammonium Salt ◽  
New Compounds ◽  
Derivatives Of

A series of derivatives of trans-3-(2,4,6-trimethoxyphenyl)4,5-dihydroisoxazolo-4,5-bis[carbonyl-(4′phenyl)thiosemicarbazide (9) and of trans-3-(2,4,6-trimethoxyphenyl)-4,5-dihydro isoxazolo-4,5-bis(aroylcarbohydrazide) (10a–c) were synthesized from trans-3-(2,4,6-trimethoxyphenyl)-4,5-dihydro-4,5-bis(hydrazenocarbonyl)isoxazole (8). The structures of the compounds were elucidated by both elemental and spectral (IR, NMR, and MS) analysis. Compound 9 shows activity against some bacterial species. No antibacterial activities were observed for compounds 10a–c. The antioxidant activity of the new compounds has been screened. Compound 9 showed higher antioxidant activity using the DPPH (1,1-diphenyl-2-picrylhydrazyl) and ABTS (2’-azino–bis(3-ethylbenzoline-6-sulfonic acid) diammonium salt methods.

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