scholarly journals Anti-lipolytic activity and phytochemical screening ofChelianthesalbomarginataagainst pathogenic microorganisms

2017 ◽  
Vol 18 (2) ◽  
pp. 56-62
Author(s):  
Rini Jarial
Keyword(s):  
Lipolytic Activity ◽  
Cholesterol Oxidase ◽  
Bacterial Activity ◽  
The Body ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Zone Of Inhibition ◽  
Oxidase Inhibition ◽  
Therapeutic Properties ◽  
Inhibition Zones

ABSTRACT:The aim of the present study was to evaluate the therapeutic properties of selected fern, Chelianthusalbomarginataand to identify its functional compounds. The methanolic fern-extract (MFE) of these ferns was assessed for anti-bacterial activities by measuring inhibition zones against a panel of pathogenic bacterial strains using agar diffusion method. MFE at a concentration of 25 μg/ml showed marked anti-bacterial activity against all bacterial strains (6-23mm zone of inhibition) and was maximum against Enterobacter sp (23 mm). In addition, the MFE of C. albomarginatahad the best MIC values of 2.25µg/ml against S. aureus and Enterobacter sp., respectively. The MFE also possessed good anti-lipolytic activity (66.5%) against a porcine pancreatic lipase (PPL) and cholesterol oxidase inhibition (79%). This result showed that MFE of C. albomarginataunder optimal concentrationis not only a potent source of natural anti-oxidants and anti-bacterial activity but also possesses efficient cholesterol degradation and anti-lipolytic activities, that is to be beneficial in the body weight management.

scholarly journals ANTIBACTERIAL ACTIVITY OF METHANOLIC RHIZOME EXTRACT OF ALPINIA CALCARATA ROSC. (ZINGIBERACEAE)

2016 ◽  
Vol 3 (1) ◽  
pp. 65-66
Author(s):  
Arumugasamy K ◽  
Nantha Kumar R ◽  
Abdul Kaffoor H ◽  
Shalimol A
Keyword(s):  
Antibacterial Activity ◽  
Bacterial Species ◽  
Antibacterial Activities ◽  
Bacterial Activity ◽  
Proteus Vulgaris ◽  
Bacterial Strains ◽  
Zone Of Inhibition

The methanolic rhizome extract of A. calcarata was evaluated for its antibacterial activities against five bacterial strains Pseudomonas aeuroginosa, Proteus vulgaris, Salmonella paratyphi, Bacillus thurungiensis and Staphylococcus faccealis. The extract has inhibited all the tested bacterial species with different manner at various concentration. However the higher level zone of inhibition in 400 (mg/ml) is significant against all the above said bacterial strains of these Salmonella paratyphi. Based on the present study it can be conculuded that the plant rhizome possess potent anti bacterial activity.

scholarly journals A Comparative Study of Antimicrobial Activity of Ethanolic Extract of Tecoma stans and Abutilon indicum Leaves: An In vitro Study

2021 ◽  
pp. 609-615
Author(s):  
M. Binigha ◽  
R. Gayatri Devi ◽  
J. Selavaraj ◽  
A. Jothi Priya
Keyword(s):  
Antimicrobial Activity ◽  
Agar Plate ◽  
Ethanolic Extract ◽  
Flowering Plant ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Zone Of Inhibition ◽  
The Family ◽  
Abutilon Indicum

Tecoma stans is a flowering plant belonging to the family Bignoniaceae. It is the floral emblem of the Bahamas. Abutilon indicum belongs to the family Malvaceae. It is also called Indian Mallow. Tecoma stans and Abutilon indicumhave antimicrobial activity and can be used in producing antibiotics. There is an urgent need to produce new antibiotics as there is an increase in the development of pathogen resistant drugs. The aim of this study was to compare the antimicrobial activity of ethanolic extract of Tecoma stansand Abutilonindicum leaves. E.faecalis bacteria were maintained in nutrient agar slopes. The powder of the two herbs, were subjected to extraction by Soxhlet extractor and was concentrated to dry residue by Agar well diffusion method. The nutrient broth was inoculated with bacterial strains. The culture was adjusted to 0.5McFarland turbidity standard. Lawn culture was done in Muller-Hinton agar plate and then the plates were dried. A 6 mm diameter well is bored for different concentrations. The extracts were introduced into the well and allowed to stand for 24 hrs. The antibacterial activity was determined by measuring the zone of inhibition. The present finding on the antimicrobial potential of Abutilon indicum and Tecoma stands showed that the two plants have growth inhibitory activity against oral pathogen E. faecalis. Abutilon indicum has a zone of inhibition greater than Tecoma stans. Abutilon indicum exhibited better activity compared to Tecoma stans.

scholarly journals Phytochemical and Antibacterial Properties of Ethanolic Seed Extracts of Chrysophyllum albidum (African Star Apple)

2016 ◽  
Vol 1 (1-2) ◽  
pp. 05-09 ◽  
Author(s):  
Samuel L. Oputah ◽  
Kolawole O. Ajanaku ◽  
Raphael C. Mordi ◽  
Joseph A. O. Olugbuyiro ◽  
Shade J. Olorunshola ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Bacillus Cereus ◽  
Antibacterial Properties ◽  
Ethanolic Extract ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Zone Of Inhibition ◽  
Test Organisms ◽  
Seed Extracts ◽  
African Star Apple

Phytochemical and antibacterial properties of ethanolic extract of the seeds of African Star Apple (Chrysophyllum albidum) were investigated. The phytochemical result revealed the presence of saponins, carbohydrates, flavonoids, quinones, cardiac glycosides, fatty acids and terpenoids. The antibacterial activity was studied using agar well diffusion method at different concentrations against six pathogenic bacterial strains, three Gram-positive (Staphylococcus aureus, Micrococcus varians and Bacillus cereus) and three Gram-negative (Escherichia coli, Pseudomonas aeruginosa and Proteus vulgaris). Significant inhibitory activities were exhibited by the ethanolic seed extracts for all test organisms except Bacillus cereus. Zone of inhibition of the crude ethanolic extract was correlated with that of a standard antibiotic Gentamicin, for antibacterial activity. The results indicated a notable inhibition of the bacterial growth.

scholarly journals The Effect of Temperature and Heating Time of Roselle Extract (Hibiscus Sabdariffa L) Powder Solution on Growth Inhibition of Staphylococcus aureus ATCC 25923

2021 ◽  
Vol 8 (2) ◽  
pp. 55
Author(s):  
Hana Sofiana Maghfira ◽  
Isnaeni Isnaeni ◽  
Asri Darmawati
Keyword(s):  
Staphylococcus Aureus ◽  
Block Design ◽  
Heating Time ◽  
Bacterial Activity ◽  
Effect Of Temperature ◽  
Diffusion Method ◽  
Hibiscus Sabdariffa ◽  
Control Block ◽  
Significant Difference ◽  
Inhibition Zones

The main ingredients of roselle (Hibiscus sabdariffa L.) which have antioxidant and antibacterial effect were anthocyanins, and flavonoids. Flavonoid compounds were unstable at high temperatures. Meanwhile, the processing of roselle extract powder into ready-to drink or food preparations generally requires the thermal processes. The aims of this study were to determine the effect of temperature and heating time of roselle extract powder solution on the inhibition of microbial growth of Staphylococcus aureus ATCC 25923. The method of this study uses a ready-to- process roselle powder extract sample. The roselle extract powder solution in a screw cap tube was heated at a temperature of 40°C, 50°C, 60°C, 70°C, 80°C, and 90°C on a waterbath, with heating times at each temperature were 15 minutes and 30 minutes. Anti bacterial activity of the sample solution was measured based on the ability to inhibit the growth of Staphylococcus aureus ATCC 25923 by the agar-well diffusion method. The inhibition zone of the sample was measured by caliper. The result of this study showed that inhibition zones caused by the sample that had been heated at those temperature for 15 minutes were 9.55±0.70 mm, 9.53 ±0.04 mm, 9.70±0.14 mm, 9.68±0.24 mm, 10.10±0.14 mm, and 10.25±0.21 mm. Meanwhile, after heating for 30 minutes the inhibition zones were 10.08±0.25 mm, 10.20±0.28 mm, 10.43±0.18 mm, 10.08±0.18 mm, 10.78±0.04 mm, 9.70±0.14 mm. Two ways statistical test ANOVA Randomized Control Block Design with 95% confidence level was used to prove that there was a significant difference berween the mean inhibition zones of each sample. The conclution of this research was, the temperature in the range of 40 -90 oC has no effect on the anti-bacterial activity of the sample. However, the heating time of the sample affected the antibacterial activity of the roselle extract powder solution against Staphylococcus aureus ATCC 25923.

scholarly journals In Vitro Testing of Salicylanilide Derivatives Against Some Fungal and Bacterial Strains

2019 ◽  
Vol 70 (4) ◽  
pp. 1496-1499
Author(s):  
Ioana Maria Carmen Ienascu ◽  
Diana Obistioiu ◽  
Iuliana Maria Popescu ◽  
Mariana Nela Stefanut ◽  
Osser Gyongyi ◽  
...  
Keyword(s):  
Susceptibility Testing ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Disk Diffusion Method ◽  
Dental Office ◽  
Inhibition Zones ◽  
Benzamide Derivatives ◽  
Effective Compound

In the dental office, disinfection and sterilization are a matter of utmost importance for both the physician, the medical staff and the patient. Twelve N-(2-bromo-phenyl)-2-hydroxy-benzamide and N-(4-bromo-phenyl)-2-hydroxy-benzamide derivatives were synthesized and tested for antimicrobial activity against 6 bacterial and 2 fungal strains using the Disk diffusion method for susceptibility testing. The obtained results indicated that the N-(2-bromo-phenyl)-2-hydroxy-benzamide derivatives were more active against the tested microbes, inhibition zones of 6-12 mm being obtained, although the most effective compound against S. pyogenes proved to be N-(4-bromo-phenyl)-2-hydroxy-benzamide (14 mm inhibition zone). The tested compounds presented no effect against S. aureus, S. flexneri, S. typhimurium and C. parapsilopsis at the tested concentration.

scholarly journals ANTIBACTERIAL CAPACITY AND IDENTIFICATION OF BIOACTIVE COMPOUNDS BY GCMS OF ALLIUM CEPA

2018 ◽  
Vol 10 (2) ◽  
pp. 116 ◽  
Author(s):  
Dushyant Sharma ◽  
Reena Rani ◽  
Monika Chaturvedi ◽  
J. P. Yadav
Keyword(s):  
Antibacterial Activity ◽  
Allium Cepa ◽  
Shigella Flexneri ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Klebsiella Pneumonia ◽  
Phytochemical Analysis ◽  
Dodecanoic Acid ◽  
Bacterial Strains ◽  
Zone Of Inhibition

Objective: Plants offer a novel source for the isolation of a wide variety of medicinal agents. Allium cepa commonly known as onion is very well known medicinal plants and we investigated the antibacterial activity of different extracts and their phytochemical analysis by gas chromatography mass spectrometry (GCMS).Methods: The extracts of A. cepa prepared in six different solvents was analyzed for antibacterial activity against nine American type cell culture (ATCC) reference bacterial strains i.e. Shigella flexneri, Enterococcus faecalis, Staphylococus aureus, Proteus mirabilis, Salmonella typhi, Serratia marcescens, Klebsiella pneumonia, Escherichia coli, Pseudomonas aeruginosa by using the agar well diffusion method. GCMS analysis also has been carried out for their phytochemical analysis.Results: The results obtained from agar well diffusion assay showed the zone of inhibition range from 10±0.76 to 26±0.76 mm for different extracts. The methanol extract was found most potent against K. pneumonia and S. marcescens with the zone of inhibition of 26±0.76 mm for both strains. Minimum inhibitory concentration (MIC) values were in the range of 1.87 to 7.5 mg/ml and the MIC values for K. pneumonia and S. marcescens was 1.87 mg/ml. A total of 43 compounds were identified by GCMS analysis. Out of them dodecanoic acid was found common in all extracts.Conclusion: It is concluded that Allium cepa have good antibacterial activity so it can be used for the treatment of various infectious diseases.

scholarly journals Comparative Study of Antibacterial Activity of Juice and Peel Extract of Citrus Fruits

2019 ◽  
Vol 6 ◽  
pp. 82-88 ◽  
Author(s):  
Alisha Shakya ◽  
Bhawana Luitel ◽  
Pragati Kumari ◽  
Ritu Devkota ◽  
Puspa Raj Dahal ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Diffusion Method ◽  
Citrus Limon ◽  
Citrus Fruits ◽  
Bacterial Strains ◽  
Zone Of Inhibition ◽  
Gram Positive ◽  
E Coli ◽  
Bacillus Spp ◽  
Peel Extract

Objectives: This study was aimed to compare the antibacterial activity of peel and juice extracts of citrus fruits. Methods: The antibacterial activity of juice and peel extract of five selected citrus fruits [C1- Citrus reticulata (mandarin orange), C2- Citrus limetta (sweet lime), C3- Citrus aurantifolia (lime), C4- Citrus limon (lemon) and C5- Citrus maxima (pommelo)] on three Gram positive and five Gram negative bacterial strains were examined. The juice and peel extract of citrus fruits was obtained by using absolute ethanol. The obtained extracts were dissolved in 1ml 10% v/v DMSO which was taken to carry out the antibacterial susceptibility assay using agar well diffusion method. Results: The peel extracts of C1 and C2 were found to be more effective against the given Gram-positive bacteria than the juice extracts with maximum zone of inhibition (20.33±1.527) and (15.33±0.577) against Bacillus spp respectively. While the juice extracts of C3 and C4 were more effective against both Gram positive and negative bacteria than their peel extracts with maximum zone of inhibition (26.66±1.15) against S. aureus ATCC 25923 and (20±1) against E. coli ATCC 25922 respectively. The juice extract of C5 was found to be more effective against both Gram positive and negative bacteria than its peel extract with maximum zone of inhibition (18.66±1.154) against E. coli ATCC 25922 except for Bacillus spp in which peel extract showed maximum zone of inhibition i.e. (15±1) Conclusion: This study suggests that these juice and peel extracts may have beneficial antibacterial roles that can be exploited in controlling unwanted bacterial growth.

scholarly journals In-vitro Antimicrobial Activity of the Combined Effect of Kalanchoe Crenata and Vernonia Amygdalina on Salmonella Species

2020 ◽  
Author(s):  
Emmanuel Effah-Yeboah ◽  
Emmanuel Agyapong Asare ◽  
Gadafi Iddrisu Balali
Keyword(s):  
Growth Inhibition ◽  
Salmonella Typhi ◽  
Combined Effect ◽  
Diffusion Method ◽  
P Value ◽  
Bacterial Strains ◽  
Vernonia Amygdalina ◽  
Zone Of Inhibition ◽  
Significant Difference

Abstract IntroductionThe major breakthrough in the treatment of pathogenic diseases was the unearthing of naturally occurring antipathogenic agents or antibiotics. There have been upsurges in antibiotic-resistant strains of clinically important pathogens, which made way to the emergence of new-fangled bacterial strains that are multi-resistant. The major aim of scientists is to develop new antibiotics or other therapeutic strategies at a pace greater than that at which bacteria are developing resistance. Development of resistance to first-line antimicrobial therapies made way to recommendations for combination therapies for the treatment of some infections and some of this form of chemotherapy seems to be very successful.ObjectivesThis research was carried out the determine the effect of Kalanchoe crenata extract on salmonella Tyhi load. It was carried out to also assess the potency of the extract of Vernonia amygdalina on Salmonella typhi and also to ascertain the effect of the combined extract of Kalanchoe crenata and Vernonia amygdalina on salmonella typhi.MethodIn this research, Salmonella typhi was exposed to a crude extract of Kalanchoe crenata and Vernonia amygdalina and also the combination of the two extracts. Agar wells diffusion method was employed.ResultsThe combined effect was not sensitive to the Salmonella strain. The Salmonella strain was resistant to V. amygdalina than to K. crenata. K. cranata had the strongest activity against S. typhi with its highest zone of growth inhibition of 20 mm and lowest zone of inhibition of 7 mm while V. amygdalina produced consistent zone of growth inhibition of 5–6 mm; The combined effect produced a zone inhibition diameter only at the 100 mg/ml with zone of inhibition value of 14 mm. The subsequent lower concentrations did not show any activity against the microbes. At P-value = 0.05 two-way ANOVA statistics exhibited significant difference amongst the effects produced by the different extracts, though there were no substantial differences in the effects produced by the various concentrations.ConclusionThe salmonella strain was resistant to V. amygdalina than to K. crenata. At P-value = 0.05 there was a substantial difference in the sensitivity of the bacteria to the different extracts.

scholarly journals Antibacterial efficacy of Rosella (Hibiscus sabdariffa Linn) flower extract against Streptococcus sanguis

2015 ◽  
Vol 27 (1) ◽  
Author(s):  
Durotun Nafisa ◽  
Warta Dewi ◽  
Emma Rachmawati
Keyword(s):  
Ethanol Extract ◽  
Bacterial Activity ◽  
Diffusion Method ◽  
Hibiscus Sabdariffa ◽  
Streptococcus Sanguis ◽  
Flower Extract ◽  
Gram Staining ◽  
Inhibition Zones ◽  
Anaerobic Environment ◽  
Research Show

Introduction: Rosella is well known as health drink that contains anti bacterial compounds. The purpose of this research is to examine the anti bacterial potential of rosella calyx ethanol extract towards Streptococcus sanguis. Methods: Streptococcus sanguis was obtained from students’ saliva in the clinic of the Faculty of Dentistry, Universitas Padjadjaran. It was cultured in blood agar and incubated for 18 to 24 hours at 37°C in a facultative anaerobic environment. Streptococcus sanguis was isolated based on the characteristics of the colonies formed, Gram staining, inulin and rafinose fermentation tests. The anti bacterial test was performed using agar diffusion method (Kirby Bauer Method) by making agar holes in the agar and filling them with rosella extract with concentrations at 0.20 g/ml, 0.10 g/ml, 0.05 g/ml and 0.025 g/ml. Results: The results of this research show that there was anti bacterial activity from the ethanol extract of rosella calyx with the inhibition zones of 19.85 mm, 12.05 mm, 8.45 mm and 3.65 mm under rosellas’s extract’s concentration of at 0.20 g/ml, 0.10 g/ml, 0.05 g/ml and 0.025 g/ml respectively. Conclusion: The conclusion of this research is rosella calyx ethanol extract has the greatest anti bacterial activity at concentration 0.20 g/ml.

scholarly journals Analysis of Chemical Components and Antibacterial Activity in Essential Oil of Lantana Flowers (Lantana Camara L)

Biomedika ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 19-28
Author(s):  
Yulia Shara Sembiring ◽  
Cut Fatimah Zuhra
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Antibacterial Activities ◽  
Lantana Camara ◽  
Disk Diffusion ◽  
Diffusion Method ◽  
Chemical Components ◽  
Oil Composition ◽  
Bacterial Strains ◽  
Zone Of Inhibition

The purpose of this study was to evaluate the essential oil composition as well as antibacterial activities of essential oil of Lantana camara L flowers against four bacterial strains. Essential oil of Lantana camara L flowers was obtained by hydrodistillation method using Sthal and analyzed by GC-MS. The antibacterial activities of essential oil were tested by using disk diffusion method against four bacterial strains. Results showed  72 compounds for Lantana flowers essential oil, of which caryophyllene   (10,87%),   davanone   (9.84%),   a-humulene   (7.59%),   a-curcumene (3.35%), germacrene D (3.09%), calarene (2.42%), a-muurolene (2.27%), p-cymene (1.79%), 1,8 cineole (1.59%) , δ-cadinene (1.59%), a-copaene (1.12%), nerolidol B (1%) and ß-ocimene (0.54%) were detected as major components. Antibacterial activity assay of Lantana camara L flowers essential oil was examined against four bacterial strains including Gram (+and-) by using disk diffusion agar method. All the tested Gram (+and-) bacterial strains displayed slight to moderate antibacterial activity (7 – 10 mm) against all concentrations of essential oil. The essential oil of Lantana camara L flowers showed remarkable antibacterial activity with inhibition in concentrations of 10% and 20% against the phatogen bacterias Basillus subtilis (9.6 mm; 10.8 mm), Propionibacterium acnes ( 7.6 mm; 8.7 mm), Eschechia coli ( 8.4 mm ; 9.6 mm) and Pseudomonas aeruginosa ( 8.3 mm ; 9.3 mm) showed from zone of inhibition that was formed, zone of inhibition in concentration 20% was bigger than concentration 10%.

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