scholarly journals EFEKTIVITAS EKSTRAK DAUN MENGKUDU (Morinda citrifolia L.) DAN DAUN SIRIH MERAH (Piper crocatum Ruiz & Pav) TERHADAP ZONA HAMBAT PERTUMBUHAN Staphylococcus aureus

Author(s):  
F.E Afiff ◽  
Susie Amilah

Has conducted research on the effectiveness of various concentrations of noni leaf extract (Morinda citrifolia L.) And red betel leaf (Piper crocatum Ruiz & Pav) the growth inhibition zone of staphylococcus aureus. Inhibition test using paper disc diffusion method. Paper discs soaked in noni leaf extract and red betel leaf for 30 minutes and placed on media that has been spread bacteria staphylococcus aureus and then incubated for 24 hours. The results showed that noni leaf extract and red betel leaves with a concentration of 40%, 60% and 80% affecting large growth inhibition zone of Staphylococcus aureus.

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Nyoman Mastra

AbstractBackground Staphylococcus aureus is one of causes infection and this bacteria have been resistence for many antibiotic. Bay leaf have antibacterials substance, which stew leaves can be treat infection caused Staphylococcus aureus. The purpose of this study was to determine differences in growth inhibition zone of Staphylococcus aureus at various concentrations of water stew of bay leaf.Method The method of this study is true experiment with posstest only control design, and used Kirby Bauer disk diffusion method with various concentrations of water stewed of bay leaf (20%, 40%, 60%, 80%,100%), positive control (chloramfenicol 30 μg) and negative control (sterile distilled water). Result The result showed that the average diameter of inhibition zone in concentration 20%, 40%, 60%, 80%, and 100% is 7 mm, 8,4 mm, 9,6 mm, 10,5 mm and 11,5 mm. Based on statistical analysis using oneway ANOVA available the value of p (0,000) α (0,05), so the inhibition zone is significant difference of growth inhibition zone of Staphylococcus aureus at various concentrations of stewed water bay leaf. Conclusion Water stew of bay leaf can inhibit the growth of Staphylococcus aureus, and there are differences in growth inhibition zone of Staphylococcus aureus at various concentrations of water stew of bay leaf. Keywords: stew of bay leaf; Staphylococcus aureus; inhibition zone 


2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Nyoman Mastra

ABSTRACTBackground Staphylococcus aureus is a pathogenic bacteria that can cause infection. Biduri leaf has antibacterial compound such as tannin, flavonoid, saponin, and polyphenol.Objective This study aimed to know the difference of growth inhibition zone of Staphylococcus aureus at the various concentration of ethanol extract of biduri leaf and to determine an effective concentration.Methods This study was the true experiment with posttest only control design, used Kirby-Bauer disk diffusion method with five concentrations (20%, 40%, 60%, 80%,100%), positive control (chloramphenicol 30 µg) and negative control (ethanol 96%).Result The result of this study showed the average of inhibition zone diameter of each concentration consecutively 26,2 mm, 28,3 mm, 29,7 mm, 31 mm and 31,5 mm. One Way Anova statistic analysis showed that the value of p is 0.000 so there is the difference of growth inhibition zone of Staphylococcus aureus at various concentrations of ethanol extract of a biduri leaf.Conclusion The conclusion of this study is there are differences in growth inhibition zone of Staphylococcus aureus at various concentrations of ethanol extract of biduri leaf and an effective concentration that can inhibit of Staphylococcus aureus is concentration 20% with mean inhibition zone is 26,2 mm. Keywords: ethanol extract of biduri leaf; Staphylococcus aureus; inhibition zone


Author(s):  
Mina Usefi ◽  
Hengameh Zandi ◽  
Sara Jambarsang ◽  
Mehdi Mokhtari ◽  
Mahmood Noori Shadkam

Introduction: Today, disinfection of surfaces by using antimicrobial agents is critical for the prevention and control of pathogens and reduction of infection in hospital. The aim of this study was to investigate and compare the effects of two disinfectants against Staphylococcus aureus isolated from the NICU of Shahid Sadoughi Hospital of Yazd in 2017. Materials and Methods: In this descriptive cross sectional study, bacterial culture of samples collected from different surfaces of the NICU and S. aureus isolates were identified using conventional biochemical tests. Peracetic acid and chlorine dioxide various concentrations were used as disinfectants. Their effects against Staphylococcus aureus were determined by Standard disc diffusion method. Data were analyzed by linear mixed models in SPSS version 23. Results: 39.39% of samples were found to be S. aureus infected. The mean diameter of growth inhibition zone for peracetic acid 0.1% was significantly lower than that for peracetic acid 0.2%, and peracetic acid 0.1% was significantly higher than that for chlorine dioxide (P < 0.001). The comparison of growth inhibition zone diameters for peracetic acid 0.1% and chlorine dioxide disinfectants showed that the average diameter of the inhibition zone created by peracetic acid 0.1% was significantly higher than that created by chlorine dioxide. The most effective disinfectant on S. aureus strains isolated was peracetic acid 0.2% and the least effective disinfectant was chlorine dioxide. Conclusion: In health care facilities with S. aureus infection, peracetic acid 0.2% can be used effectively to reduce nosocomial infection rate.


2004 ◽  
Vol 4 (2) ◽  
pp. 83-88
Author(s):  
Efri Efri ◽  
Titik Nur Aeny

Effectivity of  Morinda citrifolia extract on in-vitro growth inhibition of Ralstonia sp.  Morinda citrifolia has been known as one of plants having numerous medicinal properties.  Extract of the fruits shows antibacterial activity against several bacteria including Pseudomonas aeruginosa.  The purpose of this study was to observe inhibitor effect of  M. citrifolia fruit extract, and to investigate the effect of different concentrations of  M. citrifolia fruit extract on in-vitro growth of  Ralstonia (Pseudomonas) sp., the causal agent of banana bacterial wilt disease in Lampung.  Inhibition effect of  M. citrifolia was determined by the presence of inhibition zone, and concentration effect was determined by the diameter of  inhibition zone . The study consisted of two experiments.  The treatments of the first experiment were three different kinds of fruit extract, namely the whole fruit, the seeds, and the fleshy parts, and the second one consisted of six different levels of extract concentrations.  The results showed that the whole fruit extract was the most effective as an in-vitro growth inhibitor, and the higher the concentration level the higher the growth inhibition zone formed.


2020 ◽  
Vol 5 (2) ◽  
pp. 153
Author(s):  
Almadina Latanza ◽  
Maharani Laillyza Apriasari ◽  
Yusrinie Wasiaturrahmah

ABSTRACTIntroduction: Mauli banana stem and basil leaf extracts have an antibacterial effect on Staphylococcus aureus because they contain flavonoid, saponin, alkaloid, tannin, and eugenol. 1% povidone iodine is commonly used as an antiseptic and gargle for recurrent aphthous stomatitis caused by Staphylococcus aureus. Prolonged use of 1% povidone iodine is notable to possess adverse effects. Objective: To prove the antibacterial effect of mauli banana stem extract with 25% concentration, basil leaf extract with 12.5% concentration, and mauli banana stem and basil leaf combination extract with 25%, 50%, and 75% concentration on Staphylococcus aureus and compared to 1% povidone iodine. Methods: This study was applying the true experimental design with post-test only and control group design which consisted of 6 treatments. Group I was given with Mauli banana stem extract with 25% concentration, group II with basil leaf extract with 12.5% concentration, group III, IV, and IV with mauli banana stem and basil leaf combination extract with 25%, 50%, and 70% concentration, respectively. Meanwhile, group VI was given with 1% povidone iodine as a positive control. Each treatment had 4 times repetition. Antibacterial effectivity was assessed from the inhibition zone measurement of Staphylococcus aureus growth using the diffusion method. Results: This study revealed that the mean inhibition zone formed in group I was 6-6.2 mm, group II was 6-6.2 mm, group III was 6-6.9 mm, group IV was 7.6-8 mm, group V was 8-8.5 mm, and group VI was 10.6-11.8 mm. Conclusion: The antibacterial efficacy of mauli banana stem extract at 25% concentration, basil leaf extract at 12.5% concentration, mauli banana and basil leaf combination extract at 25%, 50%, and 75% concentration on Staphylococcus aureus has been proven but not equal to 1% povidone iodine’s efficacy. Keywords: Basil leaf extract, Diffusion method, Inhibition zone, Mauli banana stem extract, Staphylococcus aureus,.


Jurnal MIPA ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 42
Author(s):  
Florentin Natalia Melsadalam ◽  
Dewa Gede Katja ◽  
Meiske S. Sangi

Telah dilakukan penelitian yang bertujuan untuk mengidentifikasi senyawa metabolit sekunder  dari ekstrak daun kaf menggunakan tiga jenis pelarut yakni n-heksan, etil asetat, dan metanol. Ekstrak yang diperoleh diuji aktivitas antibakterinya dengan metode difusi yang menggunakan bakteri Staphylococcusaureus dan Escherichia coli. Dari hasil pengujian fitokimia, ketiga ekstrak tersebut menunjukan bahwa sampel mengandung senyawa; alkaloid, saponin, steroid, flavonoid dan tanin. Pengujian aktivitas antibakteri  dengan metode difusi menunjukan hasil yang paling tinggi aktivitas antibakteri adalah  estrak etil asetat dengan zona hambat 35,75 mm terhadap bakteri  Staphylococcus aureus, sedangkan pada ekstrak metanol memiliki zona hambat 23,75 mm terhadap bakteri Escherichia coliResearch has been carried out aimed at identifying secondary metabolites of kaf leaf extract using three types of solvents, namely n-hexane, ethyl acetate, and methanol.The obtained extracts were tested for antibacterial activity by diffusion method using Staphylococcus aureus and Escherichia coli bacteria. From the results of phytochemical testing, the three extracts showed that the sample contained compounds; alkaloids, saponins, steroids, flavonoids and tannins. Antibacterial activity testing with diffusion method showed the highest antibacterial activity was estracethyl ethyl acetate with 35.75 mm inhibition zone against Staphylococcus aureus bacteria, whereas methanol had 23.75 mm inhibitory zone against Escherichia coli bacteria


2015 ◽  
Vol 20 (2) ◽  
Author(s):  
Nunung Sulistyani ◽  
Ardina Nugrahani

This study aims to examine the potential of jamu inggu as an alternative antibacterial herb that can be used against Staphylococcus aureus, Streptococcus pnuemoniae, S. Pyogenes, and Pseudomonas aeruginosa that is causing Upper Respiratory Infections (URI). Antibacteria activity test of jamu inggu was using the Agar diffusion method by Kirby-Bauer. To test jamu inggu antibacterial activity against Staphylococcus aureus,Streptococcus pnuemoniae, S. Pyogenes, and Pseudomonas aeruginosa, the diameter of the test bacteria growth inhibition zone was measured. The formation of a clear zone around the disc indicates that jamu inggu has chemical compounds that are antibacterial against Staphylococcus aureus,while the Pseudomonas aerugenosa, Streptococcus pyogenes, and S. pneumoniae bacteria cannot be inhibited by jamu inggu. It was indicated by no formation of a clear zone around the disc. Result shows that jamu inggu can be used as an alternativesource of antibiotics against the Staphylococcus aureus


2021 ◽  
Vol 22 (8) ◽  
Author(s):  
R.Y Gloria ◽  
RAHMA YULIYANI ◽  
MIA MAR'ATUSH SHOLIHA ASROR

Abstract. Gloria RY, Yuliyani R, Asror MMS. 2021. Effectiveness of green betel leaf and lime extract against Staphylococcus aureus and Escherichia coli. Biodiversitas 22: 3452-3457. Indonesian society utilizes biodiversity as source of medicinal herbs. Betel leaf and lime are included in traditional Indonesian medicinal plants that have antibacterial and antioxidant properties. One of the benefits of herbal medicinal plants of betel leaf and lime is that it can be used as a natural hand sanitizer. The purpose of this study was to test the effectiveness of naturally made hand sanitizer against Staphylococcus aureus and Escherichia coli by the combination of green betel leaf extract and lime extract. The experiment was performed by the Kirby-Bauer disc diffusion method. Results showed that a combination of 50% betel leaf extract and 50% lime extract inhibited the growth of S. aureus whereas, 75% betel leaf extract and 100% lime extract exhibited strong inhibition than 70% alcohol.


2012 ◽  
Vol 506 ◽  
pp. 545-547
Author(s):  
P. Puttamayutanon ◽  
W. Trongarom ◽  
N. Janta ◽  
S. Ruengsiri ◽  
S. Kamjaisai ◽  
...  

The aim of this study was to determine the antimicrobial activities present in newly formulated propolis cream and compare them with an organic solvent extract of propolis. The antimicrobial activities were examined using the agar well diffusion method and measuring the growth inhibition zone. The skin pathogen gram-positive organisms used were Micrococcus luteus, Staphylococcus epidermidis, Streptococcus pyogenes, Methicillin resistant Staphylococcus aureus (MRSA), and Staphylococcus aureus. The propolis cream and extracts showed satisfactory inhibitory effects on the microbial growth.


Author(s):  
Fadel Abima ◽  
Meiskha Bahar ◽  
Aulia Chairani

Diarrhea is still one of the world’s major health problem especially in developing country. Foods and beverages contaminated by microorganism become the risk factor of diarrhea, including Escherichia coli (E. coli). One of the curative effort that can be done is to utilise the secondary metabolite compounds contained in binahong leaf (Anredera cordifolia (Ten.) Steenis). This study used true experimental method. The sample was binahong leaf extract with concentration of 25%, 50, and 75% using diffusion method (Kirby-Bauer) on doublelayered Mueller Hinton Agar (MHA) (base layer and seed layer) in order to measure the growth inhibition zone around the cylinder plate. The amount of population on this study was 24 isolations of E. coli. The repetition of each treatment group was counted by Federer formula. The result analyzed using Kruskal-Wallis test and showed that there was difference on binahong leaf extract effectiveness (p < 0,05), as well as on post hoc analysis using MannWhitney test showed that there was significant difference at concentration of 25%,50%, and 75%. (p < 0,001). This shows that there is a significant differences in the concentration of binahong leaf extract.


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