Antibacterial activity of ethanol extract of the leaves of Rosmarinus officinalis L. at different concentrations versus Streptococcus mutans: An In vitro comparative study

2020 ◽  
Vol 9 (3) ◽  
pp. 152
Author(s):  
Frank Mayta-Tovalino ◽  
Edgar Janampa ◽  
Hugo Perez ◽  
Franco Mauricio ◽  
Daniel Alvítez-Temoche ◽  
...  
2021 ◽  
Vol 285 ◽  
pp. 05012
Author(s):  
A. K. Milyuhinа ◽  
L. A. Zabodalova ◽  
U. Kyzdarbek ◽  
I. R. Romazyaeva ◽  
N. Yu. Klyuchko

Rosmarinus officinalis L. is known for its antioxidant and antibacterial properties against a variety of microorganisms. In this work, research has been carried out on pharmacy rosemary. Its antioxidant and antimicrobial properties have been determined. This study showed that the ethanol extract of R. officinalis L. has a pronounced antimicrobial activity against strains of both gram-positive and gram-negative bacteria. The extract also showed good antioxidant activity. Rosemary showed significantly more potent antibacterial activity against E. coli. The diameter of the zone of oppression was 17 mm. Thus, Rosemary Pharmaceutical has demonstrated potential as a dietary supplement due to its stronger antibacterial activity.


2020 ◽  
Vol 2 (1) ◽  
pp. 28
Author(s):  
Dewa Ayu Made Adnya Swari ◽  
I Wayan Martadi Santika ◽  
I Gusti Made Aman

Background: This study was a preliminary study aimed to investigating the in vitro activity of rosmarinic acid contained on Rosemary leaves (Rosemarinus officinalis L.) on the Candida albicans. Rosmarinic acid can be an inhibitor of the RTPase enzyme in the fungus Candida albicans. Objective: This study is expected to provide information in the development of science about the antifungal activity of ethanol extract of Rosemary leave (Rosmarinus officinalis L.) againsts C.albicans. The recent research was an laboratory experimental. Experiments on an ethanol extract of Rosemary leaves (Rosemarinus officinalis L.) and post-test design of the control group. Methods: The extraction method used in this study was a multilevel extraction method. The antifungal activity testing method uses discs and MIC methods. Replication was done six times at two concentration namely, 80% (b/v) and 100% for each measurement. Results: The data analysis was carried out using SPSS with 95% of confidence level with the Kruskal Wallis analysis then completed with the Mann Whitney U test. The results of the MIC experiment showed all the various concentrations of ethanol extract performed Candida albicans growth on the surface of the media. Extract with 80% (b/v) concentration showed greater antifungal activity. Furthermore the MIC was shown by 80% (b/v) concentration of the ethanol extract of Rosemary leaves against Candida albicans. The test results of the antifungal activity of the Rosemary leaf ethanol extract showed the presence of inhibitory diameter in the ethanol extract of the Rosemary leaf concentration of 80% (b/v) with a mean ± SD of 10.6 ± 0.57735 and RSD of 5.774%. Conclusion: The ethanol extract of Rosemary leaves (Rosmarinus officinalis L.) has an inhibitory effect on the fungus Candida albicans at a concentration of 80% (b / v) Keywords: Antifungal activity, Candida albicans, Rosemary, RTPase, ethanol extract


2018 ◽  
Vol 9 (3) ◽  
pp. 336
Author(s):  
Ni Luh Budi Artaningsih ◽  
Nur Habibah ◽  
Mastra Nyoman

<p><em>Streptococcus mutans</em> is a positive gram bacteria which cause dental caries. From the several previous studies, Gamal leaf has been predicted as the antibacterial agent because of their active substance such as tannins, alkaloids, saponins, and flavonoids. The objective of the study was to know the antibacterial activity of ethanol extract of Gamal leaf (<em>Gliricidia sepium</em>) for <em>Streptococcus mutans</em> in various concentrations. This study was a true experimental with post-test only control design. The determination of antibacterial activity in this study was conducted by using Kirby Bauer disk diffusion method with the various concentrations, there were 40, 50, 60, 70 and 80%. The positive and negative controls in this study were 30 µg disk diffusion of chloramphenicol and the 96% of ethanol. The average inhibition of zone diameter in the concentrations of 40, 50, 60, 70 and 80% were 11.3, 12.3, 13.4, 15.3 and 19.2 mm, respectively. One Way ANOVA statistical analysis showed that the value of p was 0.000, so there was a difference of growth inhibition zone of <em>Streptococcus mutans</em> in various concentrations of ethanol extract of Gamal leaf (<em>Gliricidia sepium</em>). Based on the result, it can be concluded that the ethanol extract of Gamal leaf (<em>Gliricidia sepium</em>) have strong antibacterial activity, especially to <em>Streptococcus mutans</em> bacteria.</p>


2015 ◽  
Vol 18 (6) ◽  
pp. 457 ◽  
Author(s):  
Meenakshi Sharma ◽  
Sandeep Tandon ◽  
Vishal Aggarwal ◽  
KishoreG Bhat ◽  
Damodhar Kappadi ◽  
...  

Author(s):  
Deysiane Pereira ALVES ◽  
Glisely Andrea Bonfim SANTOS ◽  
Elena Carla Batista MENDES ◽  
Carmem Costa MARTINS ◽  
Dora Inés KOZUSNY-ANDREANI

Objetivou-se neste estudo avaliar a eficácia de antissépticos bucais utilizados rotineiramente e extratos etanólicos de plantas do Cerrado no controle in vitro de Streptococcus mutans. A eficiência foi avaliada frente à cepa padrão Streptococcus mutans ATCC 25175. Para obtenção dos extratos etanólicos foram empregadas folhas de Schinus terebinthifolius, Hymenaea stigonocarpa, Stryphnodendron adstringens,Dipteryx alata, Tabebuia chrysotricha, Tabebuia roseo-alba, Genipa americana e Caryocar brasiliense. Os inóculos foram preparados em meio BHI, incubados a 37o por 24 horas, em condições microerofila. Os testes de eficiência foram realizados pelo método de microdiluição. Suspensões bacterianas foram preparadas em solução de NaCl (0,5%) e ajustadas para 106 UFC mL-1. A concentração inibitória mínima (CIM) foi considerada como a menor concentração do extrato ou do antisséptico capaz de inibir o desenvolvimento bacteriano. Para determinação da concentração bactericida mínima (CBM) foram transferidos 100µL de cada poço e se inocularam em meio TSA, incubados a 37o C por 24h. Verificou-se atividade antibacteriana da maioria dos extratos nas concentrações entre 25 e 50%, exceto o de ipê amarelo que apresentou CIM e CBM de 12,5%. Os antissépticos das marcas 2, 3, 5 e 6 apresentaram CIM e CBM de 100%, a marca 4 de 50% e a marca 1 de 25%. A sobrevivência de S. mutans em contato com a marca 1 (25%) foi de 20 minutos, com os extratos e os demais antissépticos foi de entre 12 e 24 horas. Os extratos de plantas medicinais apresentaram eficiência semelhante aos antissépticos no controle de Streptococcus mutans, evidenciando a possibilidade de sua utilização no controle e tratamento dessas bactérias, porém ainda não é uma prática adotada rotineiramente na odontologia.   MOUTHWASH SOLUTIONS AND PLANT EXTRACT ANTIBACTERIAL ACTIVITY AGAINST STREPTOCOCCUS MUTANS   ABSTRACT This paper aims at evaluating the regular use of mouthwash solutions and ethanol extract from Cerrado plants efficacy in vitro control of Streptococcus mutans. Efficiency was evaluated against the standard strain of Streptococcus mutans ATCC 25175. In order to obtain the ethanolic extracts, leaves of Schinus terebinthifolius, Hymenaea stigonocarpa, Stryphnodendron adstringens,Dipteryx alata, Tabebuia chrysotricha, Tabebuia roseo-alba, Genipa americana and Caryocar brasiliense were used. The inoculants were prepared in BHI medium, incubated at 37oC for 24 hours, under microerophyll conditions. The efficiency tests were performed using the microdilution method. Bacterial suspensions were prepared in NaCl solution (0.5%) and adjusted to 106 CFU mL-1. The minimum inhibitory concentration (MIC) was considered to be the lowest concentration of the extract or antiseptic capable of inhibiting bacterial growth. As to determine the minimum bactericidal concentration (CBM), 100µL of each well was inoculated in TSA medium, incubated at 37oC for 24h. Antibacterial activity of most extracts was found at concentrations between 25 and 50%, except for Tabebuia chrysotricha which showed MIC and CBM of 12.5%. Mouthwash solutions from brands 2, 3, 5 and 6 showed MIC and CBM of 100%, brand 4 of 50% and brand 1 of 25%. The survival of S. mutans in contact with brand 1 (25%) was 20 minutes, with the extracts and other mouthwashes between 12 and 24 hours. The extracts of medicinal plants showed efficiency similar to antiseptics in the control of Streptococcus mutans, showing the possibility of their use for controlling and for the treatment of those bacteria, however, it is not yet a routine practice in dentistry.   Descriptors: Streptococcus mutans, medicinal plants, mouthwash.


2016 ◽  
Vol 5 (04) ◽  
pp. 4512
Author(s):  
Jackie K. Obey ◽  
Anthoney Swamy T* ◽  
Lasiti Timothy ◽  
Makani Rachel

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.


2014 ◽  
Vol 50 (4) ◽  
pp. 851-858 ◽  
Author(s):  
Isabela Moreira Baumgratz de Paula ◽  
Flávia Costa Moraes ◽  
Orlando Vieira de Souza ◽  
Célia Hitomi Yamamoto

Rosmarinus officinalis, which belongs to the Lamiaceaefamily, is a species of medicinal flora with therapeutic properties. In order to exploit the benefits of these properties, a mouthwash formulation was developed, with careful selection of raw materials to meet pharmacotechnical requirements. Extracts of the plant were incorporated into a mouthwash, which was shown to have inhibitory action in vitro against the micro-organisms commonly found in periodontics. Controls for assessing the quality of the drugs were carried out, quantifying phenols and flavonoids as chemical markers. Mouthwash solutions were formulated containing 0.1, 5 and 10% ethanol extract of R. officinalis; and 0.05, 5 and 10% of the hexane fraction of R. officinalis. In order to evaluate synergism, ethanol extract and hexane fraction were also added to formulations containing 0.05% sodium fluoride and 0.12% chlorhexidine digluconate. These formulations were assessed for inhibitory effect against the specific microorganisms involved in the process of bacterial plaque formation, S. mutans(ATCC25175) and C. albicans(ATCC 10231), frequently found in cases of oral infections. The agar diffusion method was used to evaluate the inhibitory activity of extracts and formulations. All mouthwash solutions displayed inhibitory activity having higher sensitivity to S. mutansfor the 5% ethanol extract+0.05% sodium fluoride, and greater sensitivity to C. albicansfor the 10% hexane fraction. Results were characterized by the appearance of a growth inhibition halo, justifying the utilization and association of extracts of R. officinalis.


2019 ◽  
Vol 271 ◽  
pp. 393-400 ◽  
Author(s):  
Geferson A. Gonçalves ◽  
Rúbia C.G. Corrêa ◽  
Lillian Barros ◽  
Maria Inês Dias ◽  
Ricardo C. Calhelha ◽  
...  

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