An In Vitro Antibacterial Activity Test of Meniran Herbs’(Phyllanthus Niruri L.) Ethanol ExtractAgainst Mycoplasma gallisepticum causes Chronic Respiratory Disease (CRD) in Broiler Chickens

Chronic Respiratory Disease (CRD) is a chicken respiratory disease that attacks both broilers and layers. Chronic Respiratory Disease (CRD) has important economic significance in the intensification of chicken farms because this disease can cause huge economic losses. Meniran plant (Phyllanthus niruri Linn) is one of the plants that can be used as prevention and alternative treatment as a substitute of antibiotic caused by Mycoplasma galisepticum causes Chronic Respiratory Disease (CRD) in broiler chickens. The chemicals contained in meniran include tannins, saponins, alkaloids as antibacterials. The purpose of this study is to determine the activity of meniran herbs’ (Phyllanthus Niruri Linn) as antibacterial to eradicate Mycoplasma galisepticum. The method of this study is dilution method which included Minimum Inhibitory Concentration [MIC) and Minimum Bactericidal Concentration (MBC). Minimum Inhibitory Concentration [MIC) was taken by making the concentration of meniran extract as much 65%, 62,5%; 60%; 55%; 50%; 45%; 40%. It was then added Mycoplasma gallisepticum bacteria. The result of this study is Meniran’s activation test on Mycoplasma galisepticum obtained a dose of 62,5% could eradicate Mycoplasma galisepticum causes Chronic Respiratory Disease (CRD) in broiler chickens. Meniran herbs’ (Phyllanthus niruri linn) is effective as antibacterial at concentrations of 30% against Mycoplasma gallisepticum causes Chronic Respiratory Disease (CRD) in broiler chickens. Keywords: Meniran herbs’ (Phyllanthus Niruri Linn), Mycoplasma Galisepticum, Chronic Respiratory Disease (CRD)

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Implementation of Meniran Extract (Phyllanthus Niruri Linn) on the Performance of Broiler Chickens Infected by Mycoplasma gallisepticum Caused Chronic Respiratory Disease

KnE Life Sciences ◽

10.18502/kls.v3i6.1138 ◽

2017 ◽

Vol 3 (6) ◽

pp. 296

Author(s):

Sri Hidanah ◽

Emy Koestanti Sabdoningrum ◽

Retno Sri Wahjuni ◽

Arimbi Arimbi

Keyword(s):

Respiratory Disease ◽

Broiler Chickens ◽

Body Weight Gain ◽

Mycoplasma Gallisepticum ◽

Chronic Respiratory Disease ◽

Economic Losses ◽

Feed Conversion ◽

Inhibit Protein Synthesis ◽

Phyllanthus Niruri ◽

The World

Chronic respiratory disease (CRD) of chicken is a disease that has great economic losses in poultry industry in the world. The losses are mainly due to the decrease of body weight gain, feed efficiencies, hatchabilities and increase conversion of the feed, of embryo mortality. The main causative agent of Chronic Respiratory Disease (CRD) is Mycoplasma gallisepticum. Mycoplasma gallisepticum attacks the respiratory tract, especially in young broiler chickens with age ranged 3-5 weeks. CRD treatment usually uses macrolide antibiotics, because it has proven effective to inhibit protein synthesis. However, it is not recommended to continuously given because the chicken can be resistant to the medicineand leave a harmful reside to consumers. The development of herbal medicine utilization currently is mostly implemented for the treatment of diseases that infected livestock. Meniran plants (Phyllanthus niruri Linn) is one of the plants that can be used as prevention and alternative treatment caused by Chronic Respiratory Disease (CRD). Meniran (Phyllanthus niruri Linn) has the content of bioactive compounds that have antibacterial activity, including terpenoids,alkaloids, flavonoids, saponins, and tannins. The purpose of this study is to test and evaluate the effectiveness of Meniran extract (Phyllanthus Niruri Linn) on the performance of broiler chickens infected by Chronic Respiratory Disease (CRD), seen from the feed conversion.Keywords: Meniran, Mycoplasma galisepticum, Chronic Respiratory Disease (CRD), performance of Broiler Chickens, Feed Conversion

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Synthesis and in vitro Antibacterial Activity of Quaternization 10-Methoxycanthin-6-one Derivatives

10.20944/preprints201902.0248.v1 ◽

2019 ◽

Author(s):

Na Li ◽

Jiang-Kun Dai ◽

Dan Liu ◽

Jin-Yi Wang ◽

Jun-Ru Wang

Keyword(s):

Antibacterial Activity ◽

Natural Products ◽

Minimum Inhibitory Concentration ◽

Pathogenic Bacteria ◽

Antibacterial Agents ◽

Inhibitory Concentration ◽

Dilution Method ◽

In Vitro Antibacterial Activity

Natural products are an important source of antibacterial agents. Canthin-6-one alkaloids have displayed potential antibacterial activity based on our previous work. In order to improve the activity, twenty-two new 3-N-benzylated 10-methoxy canthin-6-ones were designed and synthesized through quaternization reaction. The in vitro antibacterial activity against three bacteria was evaluated by double dilution method. Four compounds (6f, 6i, 6p and 6t) displayed 2-fold superiority (minimum inhibitory concentration (MIC) = 3.91 µg/mL) against agricultural pathogenic bacteria R. solanacearum and P. syringae than agrochemical propineb. Moreover, the structure–activity relationships (SARs) were also carefully summarized in order to guide the development of antibacterial canthin-6-one agents.

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An in vitro Study to determine the Effect of Terminalia chebula Extract and Its Formulation on Streptococcus mutans

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1528 ◽

2014 ◽

Vol 15 (3) ◽

pp. 278-282 ◽

Cited By ~ 3

Author(s):

Sushma S Nayak ◽

Sharda C Metgud ◽

Uday Kumar Bolmal

Keyword(s):

Minimum Inhibitory Concentration ◽

Streptococcus Mutans ◽

Aqueous Extract ◽

Inhibitory Concentration ◽

In Vitro Study ◽

Ethanol Extract ◽

Dilution Method ◽

Terminalia Chebula ◽

Hydroethanolic Extract

ABSTRACT Aim Many weapons are available in the arsenal of a dental professional to combat dental caries, which is almost ubiquitously present. From a public health perspective, most of these weapons are far from being an ideal drug. Hence, there is a demand for better and effective antibacterial agents. This factor stimulated the process of the present study. The aim of the study was to determine the effect of ethanol extract of Terminalia chebula on Streptococcus mutans. Materials and methods Dried ripe fruits of Terminalia chebula were procured and powdered. Physical tests were done to estimate purity of the fruit powder. Hydroethanolic and aqueous extracts were prepared according to standard procedures. Minimum inhibitory concentration of the extracts was determined by tube dilution method and confirmed by agar dilution method. The effect of the hydroethanolic extract on sucrose induced adhesion, glucan-induced aggregation and on glycolysis of Streptococcus mutans was also assessed. Preservative, gelling agent and sweetener were added in suitable quantities to the ethanol extract, and mouthrinse was formulated. Minimum inhibitory concentration of the formulation was also determined. Results Yield was better in case of aqueous extract. The Minimum inhibitory concentration of hydroethanolic extract was determined to be 2.5%. Minimum inhibitory concentration of the aqueous extract was determined to be 10%. Hydroethanolic extract of Terminalia chebula (2.5%) inhibited sucrose induced adherence and aggregation of Streptococcus mutans in vitro. Conclusion The mouthrinse formulated from ethanol extract of Terminalia chebula demonstrated substantial antibacterial activity and could be used as an effective anticaries agent. Clinical Significance Terminalia chebula mouthrinse can be effectively used in clinical practice as an anticaries mouthrinse with additional benefit being that it is safe and economical. How to cite this article Nayak SS, Ankola AV, Metgud SC, Bolmal UK. An in vitro Study to determine the Effect of Terminalia chebula Extract and Its Formulation on Streptococcus mutans. J Contemp Dent Pract 2014;15(3):278-282.

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Uji Konsentrasi Hambat Minimum (KHM) Ekstrak Daun Mengkudu (Morinda citrifolia L.) terhadap Candida albicans Secara In Vitro

e-GIGI ◽

10.35790/eg.5.2.2017.17370 ◽

2017 ◽

Vol 5 (2) ◽

Author(s):

Lisa Ramschie ◽

Pieter L. Suling ◽

Krista V. Siagian

Keyword(s):

Candida Albicans ◽

Minimum Inhibitory Concentration ◽

Leaf Extract ◽

Inhibitory Concentration ◽

Morinda Citrifolia ◽

Control Group ◽

Dilution Method ◽

Control Group Design ◽

Group Design

Abstract: Noni (Morinda cittrifolia L.) leaves contain antraquinon, atsiri oil, saponin, tannin, alkaloid, flavonoid, polifenol, and sterol that have been proved can inhibit the growth of Candida albicans. This study was aimed to establish the minimum inhibitory concentration (MIC) of noni leaf extract against Candida abicans. This was a true experimental study with a randomized pretest-posttest control group design. We used serial dilution method with turbidimetry and spectrophotometry tests. Noni leaves were extracted by using maceration with 96% ethanol. Candida albicans fungi were obtained from Microbiology Laboratory of Faculty of Mathematics and Natural Sciences, Sam Ratulangi University. The turbidimetry test using three repetitions showed that the MIC of noni leaf extract against Candida albicans was 6.25% meanwhile the spectrophotometry test established 12.5% as the MIC of noni leaf extract. Conclusion: Minimum inhibitory concentration of noni (Morinda cittrifolia L.) leaf extract against the growth of Candida albicans was 12.5%.Keywords: noni (Morinda citrifolia L.), Candida albicans, minimum inhibitory concentration (MIC) Abstrak: Daun mengkudu (Morinda citrifolia L.) mengandung antraquinon, minyak atsiri, saponin, tannin, alkaloid, flavonoid, polifenol dan sterol yang terbukti dapat menghambat pertumbuhan Candida albicans. Penelitian ini bertujuan untuk mendapatkan konsentrasi hambat minimum (KHM) dari ekstrak daun mengkudu terhadap Candida albicans. Jenis penelitian ialah eksperimental murni dengan randomized pretest-posttest control group design. Metode yang digunakan dalam penelitian yaitu serial dilusi dengan pengujian turbidimetri dan spektrofotometri. Daun mengkudu diekstraksi dengan metode maserasi menggunakan pelarut etanol 96%. Jamur Candida albicans diambil dari stok jamur Laboratorium Mikrobiologi Program Studi Farmasi Fakultas MIPA Universitas Sam Ratulangi. Hasil penelitian menunjukkan bahwa pengujian turbidimetri dengan tiga kali perlakuan mendapatkan KHM pada konsentrasi 6,25% sedangkan pengujian spektrofotometri mendapatkan KHM pada konsentrasi 12,5%. Simpulan: Konsentrasi hambat minimum (KHM) ekstrak daun mengkudu (Morinda citrifolia L.) terhadap pertumbuhan Candida albicans terdapat pada konsentrasi 12,5%.Kata kunci: mengkudu (Morinda citrifolia L.), Candia albicans, konsentrasi hambat minimum (KHM)

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Inhibition Strength of Rosella (Hibiscus sabdariffa L.) Boiled Water on Salmonella typhi in vitro

Tropical Health and Medical Research ◽

10.35916/thmr.v1i2.7 ◽

2019 ◽

Vol 1 (2) ◽

pp. 62-67

Author(s):

Ayu Sutiany ◽

Ratih Dewi Dwiyanti ◽

Neni Oktiyani

Keyword(s):

Minimum Inhibitory Concentration ◽

Inhibitory Concentration ◽

Minimum Bactericidal Concentration ◽

Water Concentration ◽

Colony Growth ◽

Salmonella Typhi ◽

Dilution Method ◽

Hibiscus Sabdariffa ◽

Cooking Water

Rosella (Hibiscus sabdariffa L.) is a plant that can use as herbal medicine. Roselle calyx contains active compounds flavonoids, saponins, and tannins. These compounds can use as an antibacterial against Salmonella typhi. This study aims to determine the Minimum Inhibitory Concentration and Minimum Bactericidal Concentration and the effect of rosella cooking water concentration on Salmonella typhi in vitro. Experimental research with posttest only controls group design through dilution method. The results of the Minimum Inhibitory Concentration (MIC) study showed clarity at concentrations of 60%, 70%, 80%, 90%, and 100%. Minimum Bactericidal Concentration (MBC) results obtained the number of colonies at a concentration of 60% by one colony, at a level of 70%, 80%, 90%, and 100% showed no colony growth. Based on the results of the study concluded that there was an influence of rosella cooking water concentration on the growth of Salmonella typhi in vitro.

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Daya Antibakteri EkstrakMeniran (Phyllanthus niruri linn) Terhadap BakteriEnterococcus faecalis (Antibacterial Activity Of Phyllanthus niruri linn Extract Against Enterococcus faecalis Bacteria)

Conservative Dentistry Journal ◽

10.20473/cdj.v6i2.2016.99-104 ◽

2016 ◽

Vol 6 (2) ◽

pp. 99

Author(s):

Tri Desiana KH ◽

Achmad Sudirman ◽

Devi Eka Juniarti

Keyword(s):

Antibacterial Activity ◽

Minimum Inhibitory Concentration ◽

Enterococcus Faecalis ◽

Inhibitory Concentration ◽

Minimum Bactericidal Concentration ◽

Dilution Method ◽

Phyllanthus Niruri ◽

Gram Positive Bacteria ◽

Nutrient Agar Medium ◽

Preparation Stage

Background. Enterococcus faecalis is an anaerobic facultative gram-positive bacteria which contribute to the failure of root canal treatment with the number of prevalence 24% to 77%. At the preparation stage, a material for irrigation which has antibacterial activity to Enterococcus faecalis is needed. Phyllantus niruri linn is one of herbal medicament which is potential as antibacterial agent as it contains active antibacterial chemical-compound. Purpose. The purpose of the study is to identify Minimum Inhibitory Concentration and Minimum Bactericidal Concentrationof Phyllantus niruri linn against Enterococcus faecalis.Method. The research method used is laboratory experimental. Enterococcus faecalis ATCC 29212 was suspended into several concentration of Phyllantus niruri linn extract from dilution method on BHIB medium. Each tube was incubated for 24 hours. Then, each tube was subcultured to Nutrient agar medium using spreader in a petridish. Each petridish was incubated for 24 hours and the growth of the colony was manually calculated using CFU/ml unit. Result. At the concentration of 6.25%, Phyllanthus niruri linn was able to inhibit the growth of Enterococcus faecalis as 90% and there was no bacteria at the concentration of 12.5%. Conclusion. 6.25% concentration of Phyllanthus niruri linn extract was Minimum Inhibitory Concentration and 12.5% concentration was Minimum Bactericidal Concentration to Enterococcus faecalis.

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In vitro Evaluation of Various Antimicrobials against Field Mycoplasma gallisepticum and Mycoplasma synoviae Isolates in Egypt

10.1101/726000 ◽

2019 ◽

Cited By ~ 1

Author(s):

Marwa I Abd El-Hamid ◽

Naglaa FS Awad ◽

Usama H. Abo-Shama ◽

MH Yousreya ◽

Mahmoud A Abdel-Rahman ◽

...

Keyword(s):

Essential Oils ◽

Mycoplasma Gallisepticum ◽

Clinical Isolates ◽

Economic Losses ◽

Dilution Method ◽

Mycoplasma Synoviae ◽

Qrt Pcr ◽

Development Of Resistance ◽

Pcr Assays

AbstractAmong many avian mycoplasmas, Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS) are recognized as the main etiological agents of respiratory diseases and infectious synovitis in chickens and turkeys causing tremendous economic losses worldwide. Therefore, proper treatment is promoted for the control of these diseases. This study was the first in Egypt to evaluate the in vitro efficacy of various antimicrobials against field MG and MS isolates recovered from chicken and turkey flocks using both conventional microdilution and quantitative real-time PCR (qRT-PCR) assays. Totally, 47 mycoplasma isolates were recovered from 160 collected tracheal samples (29.4%). Of these, 44 MG (27.5%) and 3 MS (1.9%) were identified using conventional and molecular assays. The in vitro susceptibilities of 4 representative mycoplasma isolates (3 MG and one MS) to 8 antibiotics and 4 essential oils were investigated. The tested isolates showed various susceptibilities to tested antimicrobials. Toldin CRD, followed by clove, cumin and cinnamon oils were commonly effective against both MG and MS clinical isolates with MIC values ranging from 0.49 to 15.63 µg/mL. Similarly, tylvalosin was the most active antibiotic against MG and MS isolates with the lowest MIC values (0.015-0.03 µg/mL). DNA copies of both MG mgc2 and MS vlhA genes were markedly decreased upon treatment with majority of tested antimicrobials confirming their effectiveness as was also evaluated by conventional MIC results. In conclusion, Toldin CRD and tylvalosin were found to be the most effective antimicrobials in this study, which will contribute in controlling avian mycoplasma infections.Author SummaryAvian mycoplasmosis is considered as one of the most prominent economic problems in the commercial poultry industry worldwide. Antimicrobial therapy is the most effective tool for treatment of mycoplasmas. Owing to the side effects of antibiotics and the development of resistance to the currently used drugs, an increased emphasis on the use of alternative antimicrobials is of utmost importance. Here, we evaluate the in vitro inhibitory effects of some essential oils and various commercial antibiotics against Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS) field isolates using micro-broth dilution method and qRT-PCR assays. We found that toldin CRD, followed by clove, cumin and cinnamon oils were effective against both MG and MS clinical isolates. Similarly, tylvalosin was the most active antibiotic against MG and MS isolates. We also found that DNA copies of both MG mgc2 and MS vlhA genes were markedly decreased upon treatment with majority of tested antimicrobials. Our study provides new insights into the control of avian mycoplasma infections.

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In-vitro Screening of Antimicrobial Activities of Ocimum gratissimum on Clinical Isolates

South Asian Journal of Research in Microbiology ◽

10.9734/sajrm/2019/v4i130095 ◽

2019 ◽

pp. 1-7

Author(s):

Ifeanyi Onyema Oshim ◽

Evelyn Ukamaka Urama ◽

Oluwayemisi Odeyemi ◽

Augustina Nkechi Olise ◽

Sunday Odeyemi

Keyword(s):

Minimum Inhibitory Concentration ◽

Inhibitory Concentration ◽

Ethanolic Extract ◽

Antimicrobial Activities ◽

Negative Control ◽

Diffusion Method ◽

Dilution Method ◽

Agar Dilution Method ◽

Ocimum Gratissimum

This study was undertaken to evaluate the antimicrobial activities of crude ethanol and methanol extracts of the leaves of Ocimum gratissimum L. (scent leaf) on Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus auerus and Candida albicans.The antimicrobial activities were carried out using agar well diffusion method. The Minimum inhibitory concentration (MIC) and minimum bactericidal/fungicidal concentration (MBC/MFC) of the plant extracts on the test isolates were determined by the agar dilution method. Ciprofloxacin and fluconazole (positive controls) were used in comparison with crude extract of O. gratissimum leaves and also, Dimethyl sulfoxide (DMSO) was used as the negative control. The ethanolic extract of O. gratissimum showed antibacterial activity with the mean inhibitory zone diameter of 3 -7mm against S. auerus, 2 mm against E. coli, 2 – 12 mm against K. pneumoniae, 2 mm against P.aeruginosa. Ethanol and methanol crude extracts of O. gratissimum leaves showed no effect on C.albicans. O. gratissimum extracts showed the lower antimicrobial activity than the commercially available antibiotics (ciprofloxacin and fluconazole). The minimum Inhibitory Concentration and Minimum Bactericidal Concentration of the extracts on the test organisms also increased in the following order; methanol < ethanol. Hence, this extract could only serve as antibacterial agent in the management of bacterial infection because it has no antifungal activities on Candida isolates used in this study.

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In vitro study on the effect of antibiotic combinations on Staphylococcus epidermidis biofilms

Asian Journal of Ophthalmology ◽

10.35119/asjoo.v17i2.533 ◽

2020 ◽

Vol 17 (2) ◽

pp. 147-155

Author(s):

Bhupinder Pal Kaur ◽

Shamim Ahmad ◽

Humayoun Ashraf ◽

Giby Thachil

Keyword(s):

Minimum Inhibitory Concentration ◽

Staphylococcus Epidermidis ◽

Inhibitory Concentration ◽

In Vitro Study ◽

Dilution Method ◽

Antibiofilm Activity ◽

Chi Square ◽

Chi Square Test ◽

Broth Dilution

Purpose: Effect of combination of various antibiotics on Staphylococcus epidermidis biofilm. Study design: Experimental study. Methods: The biofilm-producing strains of S. epidermidis were isolated from 100 patients undergoing cataract surgery before instillation of any antibiotic. The strains were subjected to sensitivity test to various antibiotic combinations. The most effective agent was selected and its minimum inhibitory concentration was determined by broth dilution method. The statistics wereperformed using SPSS Version 23 (IBM Corp.) and Chi square test. Results: A total of 22 biofilm-positive samples were obtained. The combinations of vancomycin with ceftazidime (p < 0.05) followed by moxifloxacin with cefuroxime (p < 0.05) were found to be the most effective. Antibiofilm activity was also shown by other antibiotic combination. The minimum inhibitory concentration of vancomycin and ceftazidime in 11 samples was 2.5 and 2.8 mg/ml, while in the rest of the samples, it was 2.5 and 5.6 mg/ml, respectively. The minimum inhibitory concentration of moxifloxacin and cefuroxime was 0.125 and 2.81 mg/ml, respectively. Conclusion: In our study, we conclude that antibiotics are effective in eradicating biofilms.

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In Vitro Antibacterial activity of ethanolic extract of Myrsine africana against laboratory Strains of Pathogenic Organisms

International Journal of Bioassays ◽

10.21746/ijbio.2016.04.0011 ◽

2016 ◽

Vol 5 (04) ◽

pp. 4512

Author(s):

Jackie K. Obey ◽

Anthoney Swamy T* ◽

Lasiti Timothy ◽

Makani Rachel

Keyword(s):

Antibacterial Activity ◽

Minimum Inhibitory Concentration ◽

Inhibitory Concentration ◽

Ethanolic Extract ◽

Ethanol Extract ◽

E Coli ◽

Zones Of Inhibition ◽

In Vitro Antibacterial Activity ◽

Myrsine Africana

The determination of the antibacterial activity (zone of inhibition) and minimum inhibitory concentration of medicinal plants a crucial step in drug development. In this study, the antibacterial activity and minimum inhibitory concentration of the ethanol extract of Myrsine africana were determined for Escherichia coli, Bacillus cereus, Staphylococcus epidermidis and Streptococcus pneumoniae. The zones of inhibition (mm±S.E) of 500mg/ml of M. africana ethanol extract were 22.00± 0.00 for E. coli,20.33 ±0.33 for B. cereus,25.00± 0.00 for S. epidermidis and 18. 17±0.17 for S. pneumoniae. The minimum inhibitory concentration(MIC) is the minimum dose required to inhibit growth a microorganism. Upon further double dilution of the 500mg/ml of M. africana extract, MIC was obtained for each organism. The MIC for E. coli, B. cereus, S. epidermidis and S. pneumoniae were 7.81mg/ml, 7.81mg/ml, 15.63mg/ml and 15.63mg/ml respectively. Crude extracts are considered active when they inhibit microorganisms with zones of inhibition of 8mm and above. Therefore, this study has shown that the ethanol extract of M. africana can control the growth of the four organisms tested.

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