scholarly journals Antibacterial and Antifungal Activities of Proteins Extracted from Seven Different Snails

2018 ◽  
Vol 8 (8) ◽  
pp. 1362 ◽  
Author(s):  
Selvakumari Ulagesan ◽  
Hak Kim
Keyword(s):  
Antimicrobial Activity ◽  
Polyacrylamide Gel Electrophoresis ◽  
Sodium Dodecyl ◽  
Land Snail ◽  
Land Snails ◽  
Diffusion Method ◽  
Antibacterial And Antifungal Activities ◽  
Snail Proteins ◽  
Antibacterial And Antifungal ◽  
Mic Minimum Inhibitory Concentration

Snails have been used both as a food and as a treatment for a variety of medicinal conditions. In this study, seven different snail proteins were evaluated for their antimicrobial activity. Fresh water and land snails of seven different live species were collected and identified. Crude proteins were extracted from seven different snails. The extracted proteins were estimated using Bradford’s method and snail proteins were displayed using a sodium dodecyl sulfate–polyacrylamide gel electrophoresis (SDS-PAGE) analysis. The seven different snail proteins were evaluated for their antimicrobial activity against various pathogenic bacterial and fungal cultures by agar well diffusion method and MIC (Minimum Inhibitory Concentration). One of the most active, crude proteins was from land snail Cryptozona bistrialis and its protein was capable of completely inhibiting the development of pathogenic bacterial and fungal cultures. This study shows that the land snail C. bistrialis proteins could be used as an antibiotic in biomedical research.

scholarly journals Phytochemical investigation and in vitro antimicrobial activity of Richardia scabra

2016 ◽  
Vol 11 (2) ◽  
pp. 248 ◽  
Author(s):  
Kathirvel Poonkodi ◽  
Subban Ravi
Keyword(s):  
Antimicrobial Activity ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Weed Species ◽  
Antibacterial And Antifungal Activities ◽  
Agar Plug ◽  
Phytochemical Investigation ◽  
Antibacterial And Antifungal ◽  
Simple Sugar

<p class="Abstract">The present study was aimed to evaluate the phytochemical screening and antimicrobial activity of the petroleum ether and methanol extracts from the mature leaves of <em>Richardia scabra</em> from India. Disc diffusion method was used to determine the zone inhibition of the tested samples for antibacterial and agar plug method was used to determine the antifungal activity, while the microtube-dilution technique was used to determine the minimum inhibitory concentration. Both extracts showed significant antibacterial and antifungal activities when tested against 10 bacterial and four fungal strains. The minimum inhibitory concentrations of the methanol extract of<em> R. scabra</em> ranged between 12.5–100 μg/mL for bacterial strains. Alkaloids, steroids, flavonoids, fatty acids, terpenoids and simple sugar were detected as phytoconstituents of extracts. To the best of our knowledge, this is the first report against antimicrobial activity of common weed species <em>R. scabra</em> found in India.</p><p> </p>

scholarly journals Evaluation of the antimicrobial activity of Gooseberry and Wild Apple fruit juices of the northeast region of India

2017 ◽  
Vol 3 ◽  
pp. 1 ◽  
Author(s):  
Kapil Punjabi ◽  
Vidushi K. Chitalia ◽  
Tehmeena Mukadam ◽  
Jaishankar Sharma ◽  
Jinesh Maniar ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Apple Fruit ◽  
Fruit Juices ◽  
Diffusion Method ◽  
Eastern Region ◽  
The North ◽  
Antibacterial And Antifungal Activities ◽  
Wild Fruits ◽  
North Eastern ◽  
Antibacterial And Antifungal

<span>A large number of wild fruits belonging to the North Eastern region of India are considered to be nutritionally abundant and traditionally used for the treatment of various ailments. In the present study, juices of Gooseberry and Wild Apple have been evaluated for their antimicrobial activity in its consumable form as a potential source of natural anti-infective agent. The fruit juices were screened for their antibacterial and antifungal activities qualitatively, using the agar well diffusion method followed by quantitative assessment by determining the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC). The study revealed that both the fruit juices exhibited broad spectrum antibacterial activity. Considerable activity against drug resistant pathogens such as Methicillin Resistant Staphylococcus aureus (MRSA), Vancomycin Resistant Enterococci (VRE) and Extended Spectrum β-Lactamases (ESBL) producing Gram Negative bacteria (GNB) was observed. Thus, this study highlights the antibacterial efficacy of Wild Apple and Gooseberry fruit juices and augments the beneficiary properties of highly nutritional fruit juices that are specific to the Indian region.</span>

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 Manumycin-type Derivatives from a Streptomyces sp. Associated with Meson Bee Osmia cornifrons

2018 ◽  
Vol 13 (6) ◽  
pp. 1934578X1801300
Author(s):  
Zhe Wang ◽  
Ai-Hong Peng ◽  
Dan-Dan Lu ◽  
Ya-Jie Song ◽  
Cheng-Lei Wang ◽  
...  
Keyword(s):  
Inhibitory Concentration ◽  
2D Nmr ◽  
Diffusion Method ◽  
Minimal Bactericidal Concentration ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Streptomyces Sp ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal ◽  
Mic Minimum Inhibitory Concentration

Two new manumycin-type derivatives named as cornifronin A and cornifronin B, and one known analogue antibiotic SW-B were isolated from the liquid fermentation of Streptomyces sp. OC1401 obtained from body surface of a meson bee Osmia cornifrons. The structures of all isolates were identified by spectroscopic methods (HRESIMS, IR, 1D and 2D NMR) and comparison with literature data. The antibacterial and antifungal activities of these manumycin-type derivatives were evaluated by disc diffusion method and more accurate data on the antibacterial activity were obtained through the MIC (Minimum Inhibitory Concentration) and MBC (Minimal bactericidal concentration) values.

scholarly journals Antimicrobial activity of aqueous methanolic extracts of Algerian cultivars of sorghum (Sorghum bicolor (L.) Moench)

2020 ◽  
Vol 7 (1) ◽  
pp. 71-85
Author(s):  
Kadri Farida ◽  
Boudjeniba Messaoud ◽  
Wathelet Bernard ◽  
Akkal Salah
Keyword(s):  
Antimicrobial Activity ◽  
Sorghum Bicolor ◽  
Diffusion Method ◽  
Minimal Inhibition Concentration ◽  
Antibacterial And Antifungal Activities ◽  
Microdilution Method ◽  
Methanolic Extracts ◽  
Mrsa Strains ◽  
Antibacterial And Antifungal ◽  
Sorghum Bicolor L

AbstractCertain phenolics have been recognized to possessing antibacterial and antifungal activities and high levels of flavonoids and tannins have been reported in several varieties of Sorghum bicolor (L.) Moench. Antimicrobial activity and phenolics contents were investigated in five Algerian sorghum seeds. AS20 sorghum extract showed the highest levels of: total phenolics (3214.46±263.64 mg/100 g), flavonoids (32.03±1.64 mg/100 g) and tannins (615.35±6.10 mg/g) contents; however, comparable flavonoids content was recorded in I27 extract. FZ40 and AS12 flavonoids contents were comparable. Screening for antimicrobial activity, carried out by the disc’s diffusion method revealed an antimicrobial potential of sorghum crude extracts against Gram-positive and Gram-negative bacteria and candida albicans yeast. Minimal inhibition concentration determined by microdilution method varied between 0.2 and 2 mg/ml. the lowest value was recorded with F11 and FZ40 extract against Streptococcus pneumoniae and F11 against Escherichia coli. Bacillus subtilis, Staphylococcus aureus ATTCC6538 and MRSA strains showed sensitivity to all extracts. The results show these sorghums as a potential source of natural anti-streptococcal, anti-staphylococcal and anti-candida substances.

scholarly journals GC-MS Analysis and Antimicrobial Activity of Essential Oil of Stachys Cretica Subsp. Smyrnaea

2009 ◽  
Vol 4 (1) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Mehmet Öztürk ◽  
Mehmet Emin Duru ◽  
Fatma Aydoğrmuş-Öztürk ◽  
Mansur Harmandar ◽  
Melda Mahlıçlı ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Diffusion Method ◽  
Disc Diffusion Method ◽  
Antibacterial And Antifungal Activities ◽  
Aerial Parts ◽  
Germacrene D ◽  
Total Oil ◽  
Antibacterial And Antifungal ◽  
Standard Disc

The essential oil from the aerial parts of Stachys cretica L. subsp. smyrnaea Rech. fil. (Lamiaceae), endemic to Turkey, was investigated by using GC and GC-MS. Thirty-four of 37 components, represented 99.7% of the total oil, were identified. The major components of the essential oil were trans-β-caryophyllene (51.0%), germacrene-D (32.8%), α-humulene (3.1%), δ-cadinene (2.1%) and δ-elemene (2.1%). The antimicrobial activity of the essential oil, trans-β-caryophyllene and five different extracts of the aerial parts of S. cretica L. subsp. smyrnaea were investigated by the standard disc diffusion method. The essential oil and trans-β-caryophyllene exhibited antibacterial and antifungal activities. The activity increased with increasing concentrations of the essential oil and the extracts. The essential oil showed antimicrobial activity, particularly against Pseudomonas aeruginosa and Bacillus subtilis. The extracts exhibited either moderate or no activity.

scholarly journals Chemical Composition and Antimicrobial Activity of the Essential Oil of Saccocalyx satureioides Coss. et Dur

2006 ◽  
Vol 1 (8) ◽  
pp. 1934578X0600100 ◽  
Author(s):  
Hocine Laouer ◽  
Salah Akkal ◽  
Claire Debarnot ◽  
Bruno Canard ◽  
Uwe J. Meierhenrich ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Hepatitis C ◽  
Chemical Composition ◽  
Essential Oil ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal

The chemical composition of the essential oil of Saccocalyx satureioides Coss. et Dur. (Lamiaceae) was analyzed by chiral and achiral GC/MS and 42 components were identified. The main constituents were (+)-α-terpineol (35.9%), thymol (15.6%) and borneol (12.4%). The in vitro antibacterial and antifungal activities of the essential oil were assessed by the disc diffusion method, and were significant on the six microorganisms tested. A moderate inhibitory activity against hepatitis C virus polymerase was also evidenced.

scholarly journals Chemical Composition and Antimicrobial Activity of the Essential Oil from Flowers of Eryngium triquetrum (Apiaceae) Collected Wild in Sicily

2016 ◽  
Vol 11 (7) ◽  
pp. 1934578X1601100
Author(s):  
Simona Casiglia ◽  
Maurizio Bruno ◽  
Sergio Rosselli ◽  
Felice Senatore
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Art Works ◽  
Main Components ◽  
Antibacterial And Antifungal ◽  
Historical Art

The chemical composition of the essential oil from flowers of Eringium triquetrum Vahl. collected in Sicily was evaluated by GC and GC-MS. The main components were pulegone (50.6%), piperitenone (30.5%) and menthone (7.0%). Comparison of this oil with other studied oils of Eringium species is discussed. The oil showed good antibacterial and antifungal activities against some microorganisms that infest historical art works.

Synthesis of a Series of Novel 2-Amino-5-Substituted 1,3,4-oxadiazole and 1,3,4-thiadiazole Derivatives as Potential Anticancer, Antifungal and Antibacterial Agents

2021 ◽  
Vol 17 ◽  
Author(s):  
Em Canh Pham ◽  
Tuyen Ngoc Truong ◽  
Nguyen Hanh Dong ◽  
Duy Duc Vo ◽  
Tuoi Thi Hong Do
Keyword(s):  
Cell Line ◽  
Biological Activities ◽  
Chemical Properties ◽  
Diffusion Method ◽  
Anticancer Activities ◽  
Molecular Docking Study ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Thiadiazole Derivatives ◽  
Antibacterial And Antifungal

Background: Many compounds containing a five-membered heterocyclic ring display exceptional chemical properties and versatile biological activities. Objective: The objective of the present study was the desire to prepare the 5-substituted 2-amino-1,3,4-oxadiazole and 2-amino-1,3,4-thiadiazole derivatives and evaluate their potential anticancer, antibacterial and antifungal activities. Methods: Twenty-seven derivatives were synthesized by iodine-mediated cyclization of semicarbazones or thiosemicarbazones obtained from condensation of semicarbazide or thiosemicarbazide and aldehydes. The structures were confirmed by 1H-NMR, 13C-NMR and MS spectra. The antibacterial and antifungal activities were evaluated by diffusion method and the anticancer activities were evaluated by MTT assay. Results: Twenty-seven derivatives have been synthesized in moderate to good yields. A number of derivatives exhibited potential antibacterial, antifungal and anticancer activities. Conclusion: Compounds (1b, 1e and 1g) showed antibacterial activity against Streptococcus faecalis, MSSA and MRSA with MIC ranging between 4 to 64 µg/mL. Compound (2g) showed antifungal activity against Candida albicans (8 µg/mL) and Aspergillus niger (64 µg/mL). Compound (1o) exhibited high cytotoxic activity against HepG2 cell line (IC50 value 8.6 µM), which is comparable to the activity of paclitaxel, and is non-toxic on LLC-PK1 normal cell line. The structure activity relationship and molecular docking study of the synthesized compounds are also reported.

scholarly journals Antimicrobial Activity of Nitrogen-Containing 5-α-Androstane Derivatives: In Silico and Experimental Studies

Antibiotics ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 224 ◽  
Author(s):  
Lela Amiranashvili ◽  
Nanuli Nadaraia ◽  
Maia Merlani ◽  
Charalampos Kamoutsis ◽  
Anthi Petrou ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Antifungal Activity ◽  
In Silico ◽  
Web Applications ◽  
Experimental Studies ◽  
Docking Studies ◽  
Minimum Fungicidal Concentration ◽  
Antibacterial And Antifungal ◽  
Mic Minimum Inhibitory Concentration ◽  
Androstane Derivatives

We evaluated the antimicrobial activity of thirty-one nitrogen-containing 5-α-androstane derivatives in silico using computer program PASS (Prediction of Activity Spectra for Substances) and freely available PASS-based web applications (such as Way2Drug). Antibacterial activity was predicted for 27 out of 31 molecules; antifungal activity was predicted for 25 out of 31 compounds. The results of experiments, which we conducted to study the antimicrobial activity, are in agreement with the predictions. All compounds were found to be active with MIC (Minimum Inhibitory Concentration) and MBC (Minimum Bactericidal Concentration) values in the range of 0.0005–0.6 mg/mL. The activity of all studied 5-α-androstane derivatives exceeded or was equal to those of Streptomycin and, except for the 3β-hydroxy-17α-aza-d-homo-5α-androstane-17-one, all molecules were more active than Ampicillin. Activity against the resistant strains of E. coli, P. aeruginosa, and methicillin-resistant Staphylococcus aureus was also shown in experiments. Antifungal activity was determined with MIC and MFC (Minimum Fungicidal Concentration) values varying from 0.007 to 0.6 mg/mL. Most of the compounds were found to be more potent than the reference drugs Bifonazole and Ketoconazole. According to the results of docking studies, the putative targets for antibacterial and antifungal activity are UDP-N-acetylenolpyruvoylglucosamine reductase and 14-α-demethylase, respectively. In silico assessments of the acute rodent toxicity and cytotoxicity obtained using GUSAR (General Unrestricted Structure-Activity Relationships) and CLC-Pred (Cell Line Cytotoxicity Predictor) web-services were low for the majority of compounds under study, which contributes to the chances for those compounds to advance in the development.

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