scholarly journals Anacardium excelsum phytochemical analysis and in vitro antimicrobial activity against oral cavity microorganisms

2021 ◽  
Vol 34 (2) ◽  
pp. 127-135
Author(s):  
Andrés Rojas ◽  
Clara Durango ◽  
Solanlly García ◽  
Diego Castañeda-Peláez ◽  
Dabeiba García ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Oral Cavity ◽  
Ethyl Acetate ◽  
Leaf Extract ◽  
Antimicrobial Effect ◽  
Botanical Garden ◽  
Antimicrobial Treatment ◽  
Phytochemical Analysis ◽  
Anacardium Excelsum

Infections of the oral cavity have a broad microbial etiological profile that varies according to each microenvironment in the mouth. Such infections often require antimicrobial treatment, which can lead to the development of resistance. There is thus a need to find new therapeutic strategies based on natural plant-derived compounds. The aim of this study was to determine the phytochemical nuclei and the antimicrobial effect of Anacardium excelsum leaf and stem extracts, and of fractions derived from the leaf extract, against Streptococcus mutans ATCC 25175, Staphylococcus aureus ATCC 35548, Escherichia coli ATCC 25922, Enterococcus faecalis ATCC 19433 and Candida albicans ATCC 10231. The plant material was collected from the Quindío Botanical Garden (Calarcá, Quindío-Colombia), located at an altitude of 1500 meters above sea level. Hydroalcoholic extracts of A. excelsum leaves and stems, and fractions of the hydroalcoholic leaf extract, were obtained by percolation extraction. Phytochemical nuclei were identified by thin layer chromatography. The antimicrobial activity of the extracts and fractions (at concentrations of 2, 5, 10, 20 and 40 mg / ml) against the five ATCC reference strains was evaluated using the well diffusion technique on Mueller-Hinton agar. The leaf extract showed no antimicrobial activity against E. coli, but it did show antimicrobial activity against S. mutans, S. aureus, E. faecalis and C. albicans, at a concentration of 10 mg/ml, with zones of inhibition of 9 to 11 mm. The ethyl acetate and acetone fractions obtained from A. excelsum leaf extract had greatest antimicrobial activity at 10 mg/ml. In conclusion, (1) the A. excelsum leaf extract, and the ethyl acetate and acetone fractions obtained from the leaf extract, had the greatest antimicrobial activity on all the study microorganisms, and (2) the phytochemical nuclei in the fractions (ethyl acetate and acetone) were found to contain phenolic-type compounds, tannins, triterpene-type terpenes and steroidal-type terpenes, which might explain the antimicrobial activity observed.

Antimicrobial potentials, phytochemical screening and determination of bioactive compounds from Three Indian folk medicinal plants

2020 ◽  
Vol 16 ◽  
Author(s):  
V. Vanitha ◽  
S. Vijayakumar ◽  
S. Rajalakshmi
Keyword(s):  
Antimicrobial Activity ◽  
Ethyl Acetate ◽  
Leaf Extract ◽  
Antimicrobial Agents ◽  
Ethyl Acetate Extract ◽  
Diffusion Method ◽  
Dilution Method ◽  
Phytochemical Analysis ◽  
Leaf Extracts ◽  
Ft Ir

Aim: To investigate the antimicrobial efficacy of various solvents leaf extracts of Aegle marmelos, Plumbago zeylanica and Rhinacanthus nasutus against human pathogenic organisms such as Acinetobacter baumannii, Salmonella enteriditis, Bacillus cereus, Streptococcus pneumonia, Mycobacterium tuberculosis and Aspergillus fumigatous by agar well diffusion method. Background: Also, this is the first time report on MIC and MBC/MFC activities and identify the phytochemicals and functional groups using HPLC, GC-MS and FT-IR analysis. Objective: Minimum inhibitory concentration (MIC), minimum bactericidal (MBC/MFC) values were also carried out by the micro dilution method. Methods: Ethyl acetate extract of P. zeylanica showed better antimicrobial activity against the tested pathogens, especially for S. pneumoniae (40 mm) followed by ethyl acetate extract of R. nasutus (36 mm) against S. pneumoniae. While least inhibition was observed for aqueous extract of P.zeylanica against S. enteritis (10 mm). Results: The MIC ranged from 3.75 µg/ml to 60µg/ml and MBC/MFC 7.5 µg/ml to 60 µg/ml. Phytochemical analysis exhibited the presence of alkaloids, steroids, saponins, flavonoids, tannins, terpenes, phenolics and cardiac glycoside in all samples of selected plant extracts. Tannins, phenolics and glycoside were found only in the ethyl acetate extract of P.zeylanica. HPLC and GC-MS analysis of ethyl acetate leaf extract of P. zeylanica exposed ten major peaks and eleven compounds respectively. Chemical nature of the leaf extract was analysed by FT-IR spectrum. Conclusion: Ethyl acetate leaf extract of P. zeylanica showed better antimicrobial activity than other extracts as well as standard drugs. Therefore, this plant could be studied in detail for the identification of active biomolecules for antimicrobial agents.

In vitro antimicrobial activity and phytochemical analysis of fruits of Syzygium aromaticum (L.) Merr. & L.M.Perry - An important medicinal Plant

2016 ◽  
Vol 5 (4) ◽  
pp. 137-140
Author(s):  
Duraisamy Kayal Vizhi ◽  
◽  
Kokkaiah Irulandi ◽  
Palanichamy Mehalingam ◽  
Natarajan Nirmal Kumar ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Medicinal Plant ◽  
Ethyl Acetate ◽  
Diffusion Method ◽  
Phytochemical Analysis ◽  
Syzygium Aromaticum ◽  
Active Components ◽  
Methanol Extracts ◽  
Important Medicinal Plant

The fruit of Syzygium aromaticum is an important medicinal plant was subjected to phytochemical screening and antimicrobial effect of methanol, ethyl acetate and acetone extracts. Antimicrobial activity was analyzed by agar well diffusion method against gram positive and gram negative bacteria. The phytochemical analysis carried out revealed the presence of alkaloids, coumarins, catechins, flavanoids, phenols, saponins, terpenoids, tannins and steroids in various solvent extracts. Methanol extract of S. aromaticum showed good antimicrobial activity against Bacillus subtilis, Pseudomonas aeruginosa and Staohylococcus aureus. It has been showed that the methanol extracts had wider range of activity on these organisms than the acetone and ethyl acetate extracts, which indicates that the methanol extracts of selected plants may contain the active components. The use of plant extracts with known antimicrobial properties can be of great significance in therapeutic treatments.

scholarly journals In vitro inhibition of multi-drug resistant Pseudomonas efflux pump by Xylopia aethiopica (Dunal) A. Rich

2021 ◽  
Vol 1 (2) ◽  
pp. 20-27
Author(s):  
Jeremiah John Oloche ◽  
◽  
Bolaji Bosede Oluremi ◽  
Temiloluwa Oyindamola Koya
Keyword(s):  
Antimicrobial Activity ◽  
Ethyl Acetate ◽  
Bacterial Infections ◽  
Efflux Pump ◽  
Ethyl Acetate Fraction ◽  
Botanical Garden ◽  
Stem Bark ◽  
Antibiotics Resistance ◽  
Xylopia Aethiopica

Global health is under constant threat due to antimicrobial drug resistance. Bacterial Infections caused by Pseudomonas aeruginosa are of importance because of their antibiotics resistance. This study aimed at evaluating the effects of extracts of Xylopia aethiopica (XA) on multidrug-resistant (MDR) Pseudomonas isolates. Fresh samples of XA leaf, stem bark and roots were collected from the botanical garden, University of Ibadan, Nigeria. Dried and pulverized samples were extracted with methanol and partitioned into n-hexane, dichloromethane and ethyl acetate. Phytochemical screening of the extracts was performed by standard methods. Antimicrobial activity and synergistic interaction were determined using microdilution and checkerboard broth dilution methods, respectively. The results revealed that crude methanol extracts of XA leaf, stem bark and root significantly (p<0.05) inhibited the growth of all tested MDR Pseudomonas isolates at 10 mg/mL. At 1 mg/mL, the ethyl acetate fraction of the leaf, and dichloromethane fraction of the roots produced clear zones of inhibition of 12 – 20 mm, and minimum inhibitory concentrations (MICs) of 1 µg/mL and 0.5 mg/mL, respectively. The modulation factor (MF) of ciprofloxacin, dichloromethane fraction of XA roots and ethyl acetate fraction of XA leaf were 4, 8, and 4 on MDR isolates E01006, OAU058 and P. aeruginosa ATCC 27853, respectively. In all tested isolates, but not E01006 and E01024, the fractional MICs of ciprofloxacin/ethylacetate fraction of XA leaf extract combination was not significantly different (p>0.05) compared with ciprofloxacin/verapamil combination. In conclusion, the root and leaf fractions Xylopia aethiopica that demonstrated antimicrobial activity against MDR P. aeruginosa and synergised with ciprofloxacin have the potential to rejuvenate the antimicrobial activity of ciprofloxacin in MDR P. aeruginosa.

scholarly journals PRELIMINARY PHYTOCHEMICAL SCREENING AND IN VITRO ANTIMICROBIAL ACTIVITY OF THE LEAF EXTRACT OF THUNBERGIA COCCINEA (FAMILY-ACANTHACEAE)

2019 ◽  
pp. 111-114
Author(s):  
NARGIS SULTANA ◽  
SUMIT DAS
Keyword(s):  
Antimicrobial Activity ◽  
Plant Extract ◽  
Leaf Extract ◽  
Test Organism ◽  
Diffusion Method ◽  
Phytochemical Analysis ◽  
Gram Positive Bacteria ◽  
Fungal Activity ◽  
Anti Fungal

Objective: To estimate the antimicrobial activity of the leaf extract of Thunbergia coccinea in association with phytochemical analysis. Methods: The extraction of the leaves of Thunbergia coccinea was done by using a various solvent like petroleum ether, chloroform and methanol. The phytochemical constitutes are investigated by using standard methods. Antimicrobial activity of leave extract was carried out against gram positive bacteria (Staphylococcus aureus) and one gram negative bacteria (Escherichia coli). The anti-fungal activity of the plant extract was evaluated on Candida albicans. The testing was done by using disc diffusion method. The zone of inhibition was compared with standard Amikacin for anti-bacterial activity and fluconazole for anti-fungal activity. Results: The present investigation shows the phytochemical analysis which revealed the presence of alkaloid, flavonoid, cardiac glycoside, saponin glycoside, tannin and phenolics. The antimicrobial activity of plant extract is showed significant result against all three of the test organism. Conclusion: The present study concluded that the leaf extract of Thunbergia coccinea contain various phytochemicals and possess promising antimicrobial activity when compared with the standards.

scholarly journals Comparative Antimicrobial Activity Study of Brassica oleceracea

Proceedings ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 64 ◽  
Author(s):  
Sandeep Waghulde ◽  
Nilofar Abid Khan ◽  
Nilesh Gorde ◽  
Mohan Kale ◽  
Pravin Naik ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Streptococcus Pyogenes ◽  
Antimicrobial Agents ◽  
Antimicrobial Effect ◽  
Significant Inhibition ◽  
Phytochemical Analysis ◽  
Gram Negative Bacteria ◽  
Gram Positive Bacteria ◽  
White Cabbage

Medicinal plants are in rich source of antimicrobial agents. The present study was carried out to evaluate the antimicrobial effect of plants from the same species as Brassica oleceracea namely, white cabbage and red cabbage. The preliminary phytochemical analysis was tested by using a different extract of these plants for the presence of various secondary metabolites like alkaloids, flavonoids, tannins, saponins, terpenoids, glycosides, steroids, carbohydrates, and amino acids. The in vitro antimicrobial activity was screened against clinical isolates viz gram positive bacteria Staphylococcus aureus, Streptococcus pyogenes, gram negative bacteria Escherichia coli, Pseudomonas aeruginosa. Extracts found significant inhibition against all the pathogens.

scholarly journals Novel Derivatives of 4-Methyl-1,2,3-Thiadiazole-5-Carboxylic Acid Hydrazide: Synthesis, Lipophilicity, and In Vitro Antimicrobial Activity Screening

2021 ◽  
Vol 11 (3) ◽  
pp. 1180
Author(s):  
Kinga Paruch ◽  
Łukasz Popiołek ◽  
Anna Biernasiuk ◽  
Anna Berecka-Rycerz ◽  
Anna Malm ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Carboxylic Acid ◽  
Bacterial Infections ◽  
Acid Hydrazide ◽  
Antimicrobial Effect ◽  
In Vitro Antimicrobial Activity ◽  
Research Goal ◽  
New Compounds ◽  
Derivatives Of

Bacterial infections, especially those caused by strains resistant to commonly used antibiotics and chemotherapeutics, are still a current threat to public health. Therefore, the search for new molecules with potential antimicrobial activity is an important research goal. In this article, we present the synthesis and evaluation of the in vitro antimicrobial activity of a series of 15 new derivatives of 4-methyl-1,2,3-thiadiazole-5-carboxylic acid. The potential antimicrobial effect of the new compounds was observed mainly against Gram-positive bacteria. Compound 15, with the 5-nitro-2-furoyl moiety, showed the highest bioactivity: minimum inhibitory concentration (MIC) = 1.95–15.62 µg/mL and minimum bactericidal concentration (MBC)/MIC = 1–4 µg/mL.

scholarly journals IN VITRO - ANTIOXIDANT AND PRELIMINARY PHYTOCHEMICAL ANALYSIS OF AEGLE MARMELOS (L.) CORREA. LEAF EXTRACT

2017 ◽  
Vol 10 (6) ◽  
pp. 367
Author(s):  
Samidha M Pawaskar ◽  
Sasangan Kc
Keyword(s):  
Hydroxyl Radical ◽  
Leaf Extract ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Total Phenolic ◽  
Phytochemical Analysis ◽  
Aegle Marmelos ◽  
Leaf Powder ◽  
Phenolic And Flavonoid

Objective: In this study, the leaf powder of Aegle marmelos (L.) Correa. was subjected to preliminary phytochemical and in vitro antioxidant analysis. Methods: The freshly prepared plant leaf extract was subjected to preliminary phytochemical screening, which revealed the presence of alkaloids, tannins, saponins, flavonoids, glycosides, phenolic compounds, terpenoids, and steroids. Reducing power, superoxide (SO) anion radical, nitric oxide (NO) radical, and hydroxyl radical scavenging assays were carried out to evaluate the antioxidant potential of the methanolic leaf extract of this plant. The amounts of total phenolic and flavonoid compounds were also determined. Results: This study has revealed that the A. marmelos (L.) Correa. leaf extract showed considerably high amounts of most of the phytochemicals, total antioxidant capacity, total phenolic, and flavonoid content. The study also indicated that the A. marmelos (L.) Correa. showed comparatively good scavenging activity, i.e., inhibition of hydroxyl radical, NO and SO anion scavenging and reducing power activities when compared with the respective standards. Conclusion: The leaf powder of A. marmelos (L.) Correa. can be used as easily accessible source of natural antioxidant and as a possible food supplement or in pharmaceutical industry.

scholarly journals Preliminary Phytochemical Analysis and In vitro Anti-helmenthic activity of Achyranthes aspera Leaf extract

2015 ◽  
Vol 7 (6) ◽  
pp. 397-399
Author(s):  
Kamal Hasan ◽  
Thangavelu Lakshmi ◽  
Thirumalai Kumaran Rathinam
Keyword(s):  
Leaf Extract ◽  
Phytochemical Analysis ◽  
Achyranthes Aspera

scholarly journals Phytochemical analysis and in vitro antioxidant stress properties of methanol acetate and ethyl extracts of Tirmania Nivea and Tirmania Pinoyi

2020 ◽  
Vol 11 (3) ◽  
pp. 4814-4820
Author(s):  
Houda Attjioui ◽  
Hamadoun Abba Touré ◽  
Amine Cheikh ◽  
Hafid Mefetah ◽  
Mustapha Draoui ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Free Radical ◽  
Ethyl Acetate ◽  
Nutritional Value ◽  
Phytochemical Analysis ◽  
The World ◽  
Antioxidant Stress ◽  
Different Cultures ◽  
Ethyl Acetate Extracts

For thousands of years, truffles have been used as essential foods in different cultures around the world because of their rich nutritional value and their pleasant and characteristic smell. We have studied the effect of truffles (Tirmania Nivea and Tirmania Pinoyi) extracts on the antioxidant stress properties issued from the Moroccan desert. Antioxidant and anti-free radical activities were studied using three analytical methods: trapping capacity of 1,1-diphenyl-2-picrylhydrazyl, phosphomolybdate, and reducing ferric antioxidant capacity; in addition, phenol and flavonoid levels were measured. The results of the FRAP, DPPH and PPM tests of T. Nivea were respectively 4.112±0.217, 0.142±0.006, 2.235±0.110 mg/mL for methanols and 3.424±0.034, 0.137±0.025, 0.858±0.010 mg/mL for ethyl acetate extracts. The results of the tests of T. pinoyi were respectively 3.670±0.572, 0.102±0.004, 0.907±0.014 mg/mL for methanols and 3.404±0.096, 0.080±0.003, 0.693±0.057 mg/mL for ethyl acetate extracts. For this work, we propose a valorization of the Moroccan truffle in the prevention of oxidative stress.

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