scholarly journals Monomyristin and Monopalmitin Derivatives: Synthesis and Evaluation as Potential Antibacterial and Antifungal Agents

Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3141 ◽  
Author(s):  
Jumina ◽  
Asma Nurmala ◽  
Anggit Fitria ◽  
Deni Pranowo ◽  
Eti Sholikhah ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Positive Control ◽  
Antifungal Activities ◽  
Amberlyst 15 ◽  
Antibacterial And Antifungal Activities ◽  
High Antibacterial Activity ◽  
Carbon Chains ◽  
Acyl Position ◽  
Antibacterial And Antifungal ◽  
Isopropylidene Glycerol

In the present work, monoacylglycerol derivatives, i.e., 1-monomyristin, 2-monomyristin, and 2-monopalmitin were successfully prepared from commercially available myristic acid and palmitic acid. The 1-monomyristin compound was prepared through a transesterification reaction between ethyl myristate and 1,2-O-isopropylidene glycerol, which was obtained from the protection of glycerol with acetone, then followed by deprotection using Amberlyst-15. On the other hand, 2-monoacylglycerol derivatives were prepared through enzymatic hydrolysis of triglycerides in the presence of Thermomyces lanuginosa lipase enzymes. The synthesized products were analyzed using fourier transform infrared (FTIR) spectrophotometer, gas or liquid chromatography-mass spectrometer (GC-MS or LC-MS), and proton and carbon nuclear magnetic resonance (1H- and 13C-NMR) spectrometers. It was found that monomyristin showed high antibacterial and antifungal activities, while 2-monopalmitin did not show any activity at all. The 1-monomyristin compound showed higher antibacterial activity against Staphylococcus aureus and Aggregatibacter actinomycetemcomitans and also higher antifungal activity against Candida albicans compared to the positive control. Meanwhile, 2-monomyristin showed high antibacterial activity against Escherichia coli. The effect of the acyl position and carbon chains towards antibacterial and antifungal activities was discussed.

scholarly journals Synthesis and Characterizations ofN2(Aryl)-N4,N6-bis (6, 7-dichloro-1, 3-benzothiazol-2-yl)-1, 3, 5-triazine-2, 4, 6-triamines as Biological Potent Agents

2010 ◽  
Vol 7 (1) ◽  
pp. 210-214 ◽  
Author(s):  
B. B. Baldaniya
Keyword(s):  
Antibacterial Activity ◽  
Mass Spectra ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Elemental Analyses ◽  
Frame Work ◽  
Different Strains ◽  
Antibacterial And Antifungal

Some novelN2-(Aryl)-N4,N6-bis (6, 7-dichloro-1, 3-benzothiazol-2-yl)-1, 3, 5-triazine-2, 4, 6-triamines (4a-u) have been synthesized and characterized by elemental analyses, IR, NMR, and mass spectra. The products have been tested for their antibacterial activity against gram (+)ve and gram (-)ve bacteria and also on different strains of fungi. Introduction of –OH, -OCH3, -NO2, -Cl and –Br groups to the heterocyclic frame work enhanced antibacterial and antifungal activities.

scholarly journals Antibacterial and Antifungal Activities of Rumex Confertus Willd

2021 ◽  
Vol 9 (12) ◽  
pp. 855-856
Author(s):  
G. D. Shermatova
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Gram Positive ◽  
Antifungal Activities ◽  
Gram Positive Bacteria ◽  
Root Part ◽  
Fungal Activity ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal

Abstract: The leaves and roots of Rumex confertus Willd were tested in vitro for antibacterial and fungal activity in the fractions of gasoline, chloroform, ethyl acetate and butanol. As a result, it was found that the leaves of the Rumex confertus Willd plant, chloroform and ethyl acetate fractions of the root part have antibacterial activity against fungi and gram-positive bacteria. Keywords: Rumex confertus Willd, fractions, extracts, antibacterial, antifungal

scholarly journals BIOACTIVE COMPOUNDS, ANTIBACTERIAL AND ANTIFUNGAL ACTIVITIES OF TWO Cirsium SPECIES

2019 ◽  
Vol 18 (5) ◽  
pp. 213-221 ◽  
Author(s):  
Dumrul Gulen ◽  
Temine Sabudak ◽  
Hakime H. Orak ◽  
Hilmican Caliskan ◽  
Merve Ozer
Keyword(s):  
Antibacterial Activity ◽  
Antifungal Activity ◽  
Bioactive Compounds ◽  
Antifungal Activities ◽  
E Coli ◽  
Inhibition Effect ◽  
Antibacterial And Antifungal Activities ◽  
Hexane Extracts ◽  
Phytochemical Compounds ◽  
Antibacterial And Antifungal

In the GC-MS analysis, 81 bioactive phytochemical compounds were identified in the hexane extracts of Cirsium creticum and Cirsium italicum. Terpenoids constituted the main fractions of C. italicum (70.95 %) while hydrocarbons were most abundant compounds of C. creticum (41.11 %). The antibacterial activity and antifungal activity of extracts from two Cirsium species was tested by using microdilution methods. According to the results of antibacterial activity, highest inhibition effect of C. creticum was found on B. subtilis, E. coli and P. aeruginosa. The highest inhibition effect of C. italicum was found on B. subtilis. In the results of antifungal activity, highest inhibition effect of C. creticum was found on P. chrysogenum and highest inhibition effect of C. italicum was found on C. krusei. The present work is the first report on hexane extracts compounds of two Cirsium species as well as the antibacterial and antifungal activities.

scholarly journals Evaluation of Antimicrobial Activity of Sida cordifolia Leaf Extract

2019 ◽  
pp. 1-7 ◽  
Author(s):  
Dhanapal Venkatachalam ◽  
Samuel Thavamani ◽  
Aneesh C. Sebastian ◽  
V. B. Anju ◽  
Christy Mathew ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Pathogenic Fungus ◽  
Chloroform Extract ◽  
Diffusion Method ◽  
Zone Of Inhibition ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Sida Cordifolia ◽  
Antibacterial And Antifungal

Objective: The objective of the study was to evaluate in-vitro efficacy of antibacterial, and antifungal activities of chloroform extract of leaf of Sida cordifolia L. against some human pathogenic bacterial and fungal strains. S. cordifolia (Malvaceae) is used as anti-rheumatic, analgesic, antipyretic, anti-asthmatic, nasal decongestant, antiviral, laxative, diuretic, aphrodisiac, hypoglycemic, hepatoprotective and in the treatment of Parkinson disease. Methodology: Chloroform extract of S.cordifolia was used for antimicrobial screening. Antibacterial activity was tested against pathogenic bacterial strains Eschericha coli and Staphylococcus aureus. Also antifungal activity was tested against one human pathogenic fungal strain i.e. Candida albicans. Antibacterial and antifungal activities of S. cordifolia extract was carried out by using disc diffusion method. Results: Chloroform extract of S. cordifolia showed the largest zone of inhibition (10mm) against S. aureus at 50µgm/mL and no zone of inhibition against E.coli at 50µgm/ml. Chloroform extract has shown more potent antibacterial activity against S.aureus. Chloroform extract was found to be more effective against human pathogenic fungus C. albicuns. The zone of inhibition of chloroform extract was 10mm.The phytochemical screening demonstrated the presence of different types of compounds like alkaloids, tannins and phenolic compounds which may contribute for the anti-microbial action of this plant.  Conclusions: The results concludes that chloroform extract of S. cordifolia leaf possess antimicrobial activity.

scholarly journals Synthesis and Antimicrobial Activity of 7-Hydroxy-3',4'-Methylenedioxy- and 7-Benzyloxy-3',4'-Methylenedioxy Flavanones

2017 ◽  
Vol 9 (3) ◽  
pp. 297-306 ◽  
Author(s):  
R. Ali ◽  
A. Rahim ◽  
A. Islam
Keyword(s):  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Antifungal Activity ◽  
Elemental Analysis ◽  
The Other ◽  
Antifungal Activities ◽  
Fungal Strains ◽  
Antibacterial And Antifungal Activities ◽  
Other Hand ◽  
Antibacterial And Antifungal

7-Hydroxy-3',4'-methylenedioxy- and 7-benzyloxy-3',4'-methylenedioxy flavanones have been synthesized starting from 2,4-dihydroxyacetophenone. Subsequently biocidal activities of the flavanones have been investigated along with their corresponding chalcones against some bacterial and fungal strains. 2'-Hydroxy-4'-benzyloxy-3,4-methylenedioxy chalcone (5) and its corresponding flavanone (7) showed good antibacterial and antifungal activities against some selected bacterial and fungal strains. On the other hand, 2',4'-dihydroxy-3,4-methylenedioxy chalcone (4) showed no antibacterial and antifungal activities while its corresponding flavanone (6) showed a little antibacterial activity only at higher concentration but did not show antifungal activity. The synthesized chalcones and flavanones have been characterized using UV-Vis, IR and 1H NMRspectral data together with elemental analysis.

scholarly journals Synthesis, Antibacterial, and Antifungal Activities of Novel Pyridazino Carbazoles

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Ghazala Yaqub ◽  
Abdul Hannan ◽  
Erum Akbar ◽  
Muhammad Usman ◽  
Almas Hamid ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Antifungal Activity ◽  
Functional Groups ◽  
Antibacterial Activities ◽  
Positive Control ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal

Strategy to synthesize novel carbazole, that is, 2,3-dihydro-2-phenyl-6H-pyridazino[4, 5-b]carbazole-1,4-dione (2), is developed as key reaction. This novel compound showed ideal reactivity toward different functional groups like methyl, carboxylic, nitro, piperazine, and amine; thus series of its derivatives are synthesized sequentially with the aim to fuel up the carbazole compounds with new versatile derivatives. All compounds were investigated for their activity against bacteria (MRSA andS. typhi) and fungi (Candida albicans). Among tested compounds3,6, and8exhibited pronounced antibacterial activities while2,5, and9also showed moderate activities.2,3,5,7, and9showed stronger antifungal activity againstCandida albicanscomparable to positive control.

scholarly journals Antimicrobial Activities of Mint Lemonade Plant Extracts from Salt and Heavy Metal Stressed Plants

2021 ◽  
pp. 112-122
Author(s):  
Asima Khan ◽  
Qurban Ali ◽  
Muhammad Awais Javeid ◽  
Arif Malik
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Antifungal Activity ◽  
Bacillus Cereus ◽  
Plant Extracts ◽  
Aeromonas Hydrophila ◽  
Zone Of Inhibition ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal

Aim of present research was to evaluate the anti-bacterial, anti-fungal, anti-oxidant and multi-stress activities of a medicinal plant Mint Lemonade plant extract. Fresh mint was purchased from the nearest market. The samples were cleaned with distilled led water and its leaves, stem and roots were separated them all. The material was dried in shade at room temperature (24ºC). The three types of extracts were prepared for each sample of mint plantviz, ethanol, n-hexane and water. The antibacterial and antifungal activities of ethanolic, n-haxene and aqueous mint extract was determined on Escherichia coli, Bacillus cereus, Pseudomonas, Aeromonas hydrophila, Aspergillus niger, Aspergillus flavous and Rhizopus stolonifer respectively. From the results of the antibacterial and antifungal activities it was clear that the aqueous extract showed no inhibitory effect on test these microorganisms. In ethanolic extract of antibacterial activity Escherichia coli showed the maximum zone of inhibition with diameters of 3.90 cm at 50 µl dose. Bacilluscereus showed the zone of inhibition diameter 4.9 cm. Pseudomonas showed the maximum zone of inhibition in diameter 3.86mm.Aeromonas hydrophila expressed the maximum zone of inhibition in diameter 3.86mm. The n-hexane extracts antibacterial activity of E. coli, Bacillus cereus, Pseudomonas and Aeromonas hydrophila showed the zone of inhibition 3.86 cm, 4.5 cm, 7.90 mm and 4.71 cm respectively, while the positive control showed inhibition zone about 0.0 cm. The antifungal activity in n-haxene extract showed the maximum result in Aspergillus flavous 18 cm of the area of inhibition. In ethanol extracts antifungal activity showed the maximum result in Aspergillus flavous 4.8 cm of the zone of inhibition. The inhibitory action of mint plant extracts indicated that the plant may be used as potential antibacterial agent.

scholarly journals Synthesis and Antimicrobial Activity of Novel 4-Hydroxy-2-quinolone Analogs

Molecules ◽  
2020 ◽  
Vol 25 (13) ◽  
pp. 3059 ◽  
Author(s):  
Thitiphong Khamkhenshorngphanuch ◽  
Kittipat Kulkraisri ◽  
Alongkorn Janjamratsaeng ◽  
Napasawan Plabutong ◽  
Arsa Thammahong ◽  
...  
Keyword(s):  
Antimicrobial Agents ◽  
Antimicrobial Activities ◽  
Positive Control ◽  
Side Chain ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Structure Activity ◽  
Privileged Scaffold ◽  
Antibacterial And Antifungal ◽  
Further Development

Alkyl quinolone has been proven to be a privileged scaffold in the antimicrobial drug discovery pipeline. In this study, a series of new 4-hydroxy-2-quinolinone analogs containing a long alkyl side chain at C-3 and a broad range of substituents on the C-6 and C-7 positions were synthesized. The antibacterial and antifungal activities of these analogs against Staphylococcus aureus, Escherichia coli, and Aspergillus flavus were investigated. The structure-activity relationship study revealed that the length of the alkyl chain, as well as the type of substituent, has a dramatic impact on the antimicrobial activities. Particularly, the brominated analogs 3j with a nonyl side chain exhibited exceptional antifungal activities against A. flavus (half maximal inhibitory concentration (IC50) = 1.05 µg/mL), which surpassed that of the amphotericin B used as a positive control. The antibacterial activity against S. aureus, although not as potent, showed a similar trend to the antifungal activity. The data suggest that the 4-hydroxy-2-quinolone is a promising framework for the further development of new antimicrobial agents, especially for antifungal treatment.

scholarly journals Synthesis, Antibacterial and Antifungal Activities ofsDerivatives

2009 ◽  
Vol 6 (3) ◽  
pp. 673-680 ◽  
Author(s):  
B. B. Baldaniya ◽  
P. K. Patel
Keyword(s):  
Antibacterial Activity ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Frame Work ◽  
Different Strains ◽  
Antibacterial And Antifungal

SeveralNʹ-{4-[(3-chloro-4-fluorophenyl) amino]-6-[(-aryl) amino] -1, 3, 5-triazin-2-yl} isonicotinohydrazides (6a-r) andN2-(Aryl)-N4,N6-dipyrimidin-2-yl-1,3,5-triazine-2,4,6-triamines (4a-o) were prepared. All newly synthesized compounds have been tested for their antibacterial activity against gram (+)ve and gram (-)ve bacteria and also on different strains of fungi. Introduction of -OH, -OCH3, -NO2, -Cl and -Br groups to the heterocyclic frame work enhanced antibacterial and antifungal activities.

scholarly journals Spirobisnaphthalenes from the Endophytic Fungus Dzf12 of Dioscorea zingiberensis and Their Antimicrobial Activities

2009 ◽  
Vol 4 (11) ◽  
pp. 1934578X0900401 ◽  
Author(s):  
Xiaoyue Cai ◽  
Tijiang Shan ◽  
Peiqin Li ◽  
Yongfu Huang ◽  
Lijian Xu ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Endophytic Fungus ◽  
Antimicrobial Activities ◽  
Spectrometric Analysis ◽  
Antifungal Activities ◽  
Dioscorea Zingiberensis ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal ◽  
Diepoxin Ζ

Five spirobisnaphthalenes, namely palmarumycin CP17 (1), diepoxin κ (2), diepoxin η (3), diepoxin ζ (4), and diepoxin γ (5), were isolated from the endophytic fungus Dzf12 associated with the medicinal plant Dioscorea zingiberensis C. H. Wright. Their structures were identified by physicochemical and spectrometric analysis. Among these spirobisnaphthalenes, 2 was found to have antibacterial activity, and the mixture of 3 and 4 was detected to have both antibacterial and antifungal activities.

Sign in / Sign up

Export Citation Format

Share Document