PENGARUH KEMASAN TERHADAP AKTIVITAS ANTI BAKTERI SUSPENSI ERITROMISIN SETELAH PENYINARAN DENGAN SINAR MATAHARI LANGSUNG

2017 ◽  
Vol 2 (1) ◽  
pp. 32
Author(s):  
Nurul Hidayati
Keyword(s):  
Staphylococcus Aureus ◽  
Dosage Form ◽  
Antibiotic Activity ◽  
Test Solution ◽  
Diffusion Method ◽  
Direct Sunlight ◽  
Closed Container ◽  
Microbiological Test ◽  
Hydrolysis Process ◽  
The Stability

Erythromycin is a type of antibiotic medication. The drug is unstable when in the water because it can undergo hydrolysis process. Fortunately, it can be prevented by making dry syrup dosage form. In addition to hydrolysis, erythromycin can also have photolysis. For preventing the reaction, it can be done by packing the medication in an opaque and tightly closed container. This research was conducted to determine the effect of packaging on the stability of erythromycin suspension that has been exposed to direct sunlight within a period. The research was done by exposing erythromycin suspension, which was packed with three kinds of color packaging namely brown, translucent, and opaque, for 30 minutes, 60 minutes, 90 minutes and 120 minutes, then continued by a microbiological test with a diffusion method to determine the activity of erythromycin against Staphylococcus Aureus. The results of the research showed the existence of diameter of barrier areas around the spots that were given a test solution. It means that the test solution has antibiotic activity against bacteria. Preparations packaged in brown color have higher inhibition when compared with the opaque and translucent. It shows that the erythromycin suspension packaged in brown colors was more efficient in stabilizing the preparation

scholarly journals Pengujian Sifat Fisik dan Aktivitas Antibakteri Sediaan Gel Hand Sanitizer Ekstrak Daun Lidah Mertua (Sansevieria trifasciata Prain)

2018 ◽  
Vol 1 (3) ◽  
pp. 078-085
Author(s):  
Setyo Nurwaini ◽  
Intan Dewi Saputri
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Physical Properties ◽  
Dosage Form ◽  
Inhibition Zone ◽  
Gelling Agent ◽  
Diffusion Method ◽  
Hand Sanitizer ◽  
Significant Difference

Daun Lidah mertua (Sansevieria trifasciata Prain) diketahui mengandung senyawa polifenol, flavonoid dan saponin yang merupakan agen antibakteri. Lidah mertua memiliki aktivitas antibakteri terhadap Staphylococcus aureus dan Escherichia coli. Penelitian ini bertujuan untuk mengetahui konsentrasi ekstrak daun lidah mertua dalam sediaan gel yang memiliki aktivitas antibakteri terbesar dalam penurunan jumlah angka kuman. Ekstraksi daun lidah mertua menggunakan metode maserasi dengan pelarut etanol 96%. Variasi konsentrasi ekstrak daun lidah mertua dalam sediaan gel hand sanitizer yang digunakan yaitu F1 (10%), F2 (15%) dan F3 (20%). Na CMC digunakan sebagai gelling agent dalam formulasi. Sediaan gel hand sanitizer daun lidah mertua diuji aktivitas antibakteri terhadap Escherichia coli menggunakan metode difusi sumuran, sifat fisik (organoleptik, homogenitas, pH, viskositas, daya sebar dan daya lekat) serta penurunan jumlah angka kuman dengan metode swabbing. Hasil uji aktivitas antibakteri gel hand sanitizer ekstrak daun lidah mertua memiliki zona hambat bakteri terhadap Escherichia coli pada F1, F2 dan F3 berturut-turut sebesar 7,33 mm, 8,67 mm dan 9,75 mm. Hasil evaluasi sifat fisik gel daun lidah mertua memenuhi kriteria gel yang baik, namun memiliki daya lekat kurang 1 detik. Hasil penurunan jumlah angka kuman gel hand sanitizer daun lidah mertua paling besar pada F3 sebesar 52%. Namun, analisa statistik dengan Anova One Way menunjukkan bahwa F1 (32%), F2 (35%) dan F3 (52%) tidak menunjukkan perbedaan yang signifikan dalam penurunan jumlah angka kuman. Berdasarkan hasil penelitian ini dapat disimpulkan gel hand sanitizer ekstrak daun lidah mertua memiliki kemampuan dalam menurunkan angka kuman dan dapat digunakan sebagai alternatif sebagai sediaan gel hand sanitizer.     Lidah Mertua leaves (Sansevieria trifasciata Prain) are known to contain polyphenols, flavonoids, and saponins which have antibacterial activity. Lidah Mertua leaves have antibacterial activity against Staphylococcus aureus and Escherichia coli. This study aimed to determine the concentration of Lidah Mertua leaves extract in a gel dosage form which showed the highest antibacterial activity in decreasing germ numbers. Lidah Mertua leaves extract was prepared using the maceration method with ethanol 96%. There was a various concentration of Lidah Mertua leaves extract in gel hand sanitizer, these include F1 (10%), F2 (15%) and F3 (20%). Na CMC is used as a gelling agent in the formulation. The evaluation of the antibacterial activity of hand sanitizer gel leaves was performed against Escherichia coli using disc diffusion method, meanwhile physical properties (organoleptic, homogeneity, pH, viscosity, dispersion and adhesion) and a decrease in the germ numbers were determined by swabbing method. The results of the antibacterial evaluation of gel hand sanitizer activity showed that lidah Mertua leaves extract had a bacterial inhibition zone against Escherichia coli in F1, F2 and F3 of 7.33 mm, 8.67 mm and 9.75 mm respectively. The results of the evaluation of the physical properties of the lidah mertua leaves extract showed that the gel met criteria of a good gel, but had adhesion less than 1 second. The highest activity in decreasing term number was shown in gel hand sanitizer of lidah mertua leaves extract at F3 which was 52%. However, statistical analysis using Anova One Way showed that F1 (32%), F2 (35%) and F3 (52%) did not show a significant difference in decreasing germ numbers. Based on the results of this study, it can be concluded that the  hand sanitizer gel from the extract of lidah mertua leaves has the ability to reduce the number of germs and can be used as an alternative as a gel hand sanitizer dosage form

scholarly journals Antimicrobial activity of Rhipsalis baccifera and Drymoglossum piloselloides against Methicillin Resistant Staphylococcus Aureus and Drug Resistant Acinetobacter baumanii.

2021 ◽  
pp. 32-40
Author(s):  
S. D. Kugaperumal ◽  
R. D. De Silva ◽  
T. D. Karunarathne ◽  
C. P. Gunasekara ◽  
D. N. A. W. Samarakoon
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Chronic Wounds ◽  
Multidrug Resistant ◽  
Antibiotic Activity ◽  
Diffusion Method ◽  
Acinetobacter Baumanii ◽  
Methicillin Resistant

Methicillin Resistant Staphylococcus aureus (MRSA) and multidrug-resistant Acinetobacter baumanii are known to cause delayed healing of infections in both acute and chronic wounds. Plants are a natural source of novel antimicrobials and many new drugs are derived from plants, as plants contain phytochemicals that have antimicrobial activity. Sri Lanka is a tropical country with a wide variety of plant species, many of which were identified as possessing medicinal qualities and have been used by traditional medicinal practitioners in the treatment of various diseases and ailments. Dressings made of Rhipsalis baccifera and Drymoglossum piloselloides have been used to treat wounds by Sri Lankan traditional medicine practitioners. This study determined the antibacterial activity of aqueous and methanol extracts of R. baccifera and D. piloselloides against MRSA and Multidrug-resistant A. baumanii. Aqueous and methanolic extractions of both plants were done by maceration. Their antibacterial properties were checked against MRSA and A. baumanii by the well diffusion method. The effectiveness of the extract was further tested against factors like temperature and storage time. R. baccifera (aqueous extract) exhibited antimicrobial properties against MRSA but no activity against A. baumanii. The antibiotic activity against MRSA was increased after two months of storage at 4°C. D. piloselloides exhibited no antibiotic activity against both MRSA and A. baumanii. The methanolic extracts did not demonstrate any antibacterial activity.

scholarly journals FORMULASI SEDIAAN SABUN CAIR ANTIBAKTERI MINYAK ATSIRI DAUN KEMANGI (Ocimumamericanum L.) DAN UJI TERHADAP BAKTERI Staphylococcus epidermidis dan Staphylococcus aureus

2015 ◽  
Vol 1 (1) ◽  
pp. 1-8
Author(s):  
Febry Astuti Abu ◽  
Yusriadi Yusriadi ◽  
Muhammad Rinaldhi Tandah
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Essential Oil ◽  
Staphylococcus Epidermidis ◽  
Storage Period ◽  
Diffusion Method ◽  
Liquid Soap ◽  
Activity Data ◽  
Significant Difference ◽  
The Stability

Basil (Ocimum americanum L.) is a plant that has antibacterial activity against Staphylococcus aureus and Staphylococcus epidermidis that is a bacteria can cause infection. Basil contains essential oils that act as an antibacterial. This research aims to formulate the essential oil of basil leaves into a liquid soap, determine antibacterial activity against S.aureus and S.epidermidis bacteria with the agar diffusion method using wells and determine the stability of the preparation. Antibacterial activity data that gain was analyzed by one-way ANOVA with a level of trust 95% followed by Duncan test. The results of the research showed basil essential oil liquid soap preparation has antibacterial activity. The analysis results showed that there were significant differences in the concentration of 2%, 3%, 4%, and the Duncan test results showed no significant difference between the concentration of 4% with control (+). The results of the t-student analysis of liquid soap include viscosity, pH and dispersive capacity does not fill the parameters of stability during the storage period of 28 days

Antibacterial Activity of Thujaoccidentalis,ThujaorientalisandChamaecyparisobtusa

2017 ◽  
Vol 8 (03) ◽  
Author(s):  
Kyoung- Sun Seo ◽  
Seong Woo Jin ◽  
Seongkyu Choi ◽  
Kyeong Won Yun
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Antibacterial Agent ◽  
Methanol Extract ◽  
The Other ◽  
Diffusion Method ◽  
E Coli ◽  
Agar Diffusion ◽  
Agar Diffusion Method ◽  
Crude Methanol Extract

The antibacterial activity of three Cupressaceae plants (Thujaoccidentalis,ThujaorientalisandChamaecyparisobtusa) was tested against three bacteria using the agar diffusion method. The ether and ethylacetate fraction of crude methanol extract from the three plants showed potent antibacterial activity against the tested microorganisms. The result showed that Staphylococcus aureus revealed the most sensitivity among the tested bacteria. Thujaoccidentalisether fraction and Thujaorientalis hexane fraction exhibited the highest antibacterial activity against Staphylococcus aureus. E. coli was shown the highest MIC values compared to the other two tested bacteria, which indicates the lowest antibacterial activity against the bacterium. This study promises an interesting future for designing a potentially active antibacterial agent from the three Cupressaceae plants.

The In vitro Evaluation of the Antimicrobial Activity of Quercus robur L. Methanolic and Aqueous Leaves’ Extracts, from the Algerian High Plateaus Against some Uropathogenic Microbial Strains

2019 ◽  
Vol 18 (5) ◽  
pp. 262-274
Author(s):  
E. Benyagoub ◽  
N. Nabbou ◽  
S. Boukhalkhel ◽  
I. Dehini
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Enterococcus Faecalis ◽  
Fusidic Acid ◽  
Quercus Robur ◽  
Diffusion Method ◽  
Phytochemical Analysis ◽  
Microbial Strains

The medicinal value of the plants is due to their chemical components that bring a definite physiological action on the human body to prevent the diseases. In this work, we investigated the antimicrobial activity of leaves’ extracts of Quercus robur L., collected from the Algerian upper highlands, on ten bacterial strains and one fungal strain known to be pathogenic. First, we performed a qualitative phytochemical analysis, and second, antimicrobial activity tests performed by agar diffusion method (disc and well) with the determination of MIC by broth macro-dilution method. Given the results, it appears that obtained macerates of Quercus robur L. were rich in bioactive phytoconstituents such as alkaloids, anthraquinones, saponins, tannins, and other components. The yield of aqueous and methanolic macerates of leaves was 8.5 ± 1.41 and 22.4 ± 4.36%, respectively. The bacterial resistance was relatively important to several antibiotics, namely, ampicillin, amoxicillin + clavulanic acid for strains of Escherichia coli and Salmonella sp. However, Staphylococcus aureus strains were resistant to fusidic acid, penicillin, and oxacillin; while Enterococcus faecalis was resistant to fusidic acid, penicillin, oxacillin, and ticarcillin. The antibacterial activity of the macerates toward tested microbial strains showed that the aqueous and methanolic macerates of the leaves were proportional to the tested concentration and active not only against Gram-positive and Gram-negative bacteria but also on the fungal species Candida albicans. The estimated MIC for Escherichia coli, Enterococcus faecalis, and Staphylococcus aureus was in the order of 10 mg/mL, which seems more effective than toward Salmonella sp., Klebsiella pneumoniae, Pseudomonas aeruginosa, and Candida albicans which were in the order of 30 mg/mL. These preliminary results confirm that the part of the studied plant had a very good antimicrobial activity that was proportional to the serial concentrations of the tested extracts.

scholarly journals Predominance of PVL-negative community-associated methicillin-resistant Staphylococcus aureus sequence type 8 in newly diagnosed HIV-infected adults, Tanzania

2021 ◽  
Author(s):  
Joel Manyahi ◽  
Sabrina J. Moyo ◽  
Said Aboud ◽  
Nina Langeland ◽  
Bjørn Blomberg
Keyword(s):  
Staphylococcus Aureus ◽  
Hiv Infection ◽  
Diffusion Method ◽  
Molecular Characteristics ◽  
People Living With Hiv ◽  
Newly Diagnosed ◽  
Beta Lactam ◽  
Disk Diffusion Method ◽  
Methicillin Resistant ◽  
Inducible Clindamycin Resistance

AbstractDifficult-to-treat infections caused by methicillin-resistant Staphylococcus aureus (MRSA) are of concern in people living with HIV infection as they are more vulnerable to infection. We aimed to identify molecular characteristics of MRSA colonizing newly diagnosed HIV-infected adults in Tanzania. Individuals newly diagnosed with HIV infection were recruited in Dar es Salaam, Tanzania, from April 2017 to May 2018, as part of the randomized clinical trial CoTrimResist (ClinicalTrials.gov identifier: NCT03087890). Nasal/nasopharyngeal isolates of Staphylococcus aureus were susceptibility tested by disk diffusion method, and cefoxitin-resistant isolates were characterized by short-reads whole genome sequencing. Four percent (22/537) of patients carried MRSA in the nose/nasopharynx. MRSA isolates were frequently resistant towards gentamicin (95%), ciprofloxacin (91%), and erythromycin (82%) but less often towards trimethoprim-sulfamethoxazole (9%). Seventy-three percent had inducible clindamycin resistance. Erythromycin-resistant isolates harbored ermC (15/18) and LmrS (3/18) resistance genes. Ciprofloxacin resistance was mediated by mutations of the quinolone resistance-determining region (QRDR) sequence in the gyrA (S84L) and parC (S80Y) genes. All isolates belonged to the CC8 and ST8-SCCmecIV MRSA clone. Ninety-five percent of the MRSA isolates were spa-type t1476, and one exhibited spa-type t064. All isolates were negative for Panton-Valentine leucocidin (PVL) and arginine catabolic mobile element (ACME) type 1. All ST8-SCCmecIV-spa-t1476 MRSA clones from Tanzania were unrelated to the globally successful USA300 clone. Carriage of ST8 MRSA (non-USA300) was common among newly diagnosed HIV-infected adults in Tanzania. Frequent co-resistance to non-beta lactam antibiotics limits therapeutic options when infection occurs.

scholarly journals Nasopharyngeal Carriage of Methicillin-Resistant Staphylococcus aureus (MRSA) among Sickle Cell Disease (SCD) Children in the Pneumococcal Conjugate Vaccine Era

2021 ◽  
Vol 13 (1) ◽  
pp. 191-204
Author(s):  
Nicholas T. K. D. Dayie ◽  
Deborah N. K. Sekoh ◽  
Fleischer C. N. Kotey ◽  
Beverly Egyir ◽  
Patience B. Tetteh-Quarcoo ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Sickle Cell Disease ◽  
Conjugate Vaccine ◽  
Sickle Cell ◽  
Pneumococcal Conjugate Vaccine ◽  
Diffusion Method ◽  
Nasopharyngeal Carriage ◽  
Cell Disease ◽  
Coagulase Negative Staphylococci ◽  
Methicillin Resistant

The aim of this cross-sectional study was to investigate Staphylococcus aureus nasopharyngeal carriage epidemiology in relation to other nasopharyngeal bacterial colonizers among sickle cell disease (SCD) children about five years into pneumococcal conjugate vaccine 13 (PCV-13) introduction in Ghana. The study involved bacteriological culture of nasopharyngeal swabs obtained from 202 SCD children recruited from the Princess Marie Louise Children’s Hospital. S. aureus isolates were identified using standard methods and subjected to antimicrobial susceptibility testing using the Kirby-Bauer disc diffusion method. Cefoxitin-resistant S. aureus isolates were screened for carriage of the mecA, pvl, and tsst-1 genes using multiplex polymerase chain reaction. The carriage prevalence of S. aureus was 57.9% (n = 117), and that of methicillin-resistant S. aureus (MRSA) was 3.5% (n = 7). Carriage of the mecA, pvl, and tsst-1 genes were respectively demonstrated in 20.0% (n = 7), 85.7% (n = 30), and 11.4% (n = 4) of the cefoxitin-resistant S. aureus isolates. PCV-13 vaccination (OR = 0.356, p = 0.004) and colonization with coagulase-negative staphylococci (CoNS) (OR = 0.044, p < 0.0001) each protected against S. aureus carriage. However, none of these and other features of the participants emerged as a determinant of MRSA carriage. The following antimicrobial resistance rates were observed in MRSA compared to methicillin-sensitive S. aureus: clindamycin (28.6% vs. 4.3%), erythromycin (42.9% vs. 19.1%), tetracycline (100% vs. 42.6%), teicoplanin (14.3% vs. 2.6%), penicillin (100% vs. 99.1%), amoxiclav (28.6% vs. 3.5%), linezolid (14.3% vs. 0.0%), ciprofloxacin (42.9% vs. 13.9%), and gentamicin (42.9% vs. 13.0%). The proportion of S. aureus isolates that were multidrug resistant was 37.7% (n = 46). It is concluded that S. aureus was the predominant colonizer of the nasopharynx of the SCD children, warranting the continuous monitoring of this risk group for invasive S. aureus infections.

scholarly journals A Molecular Insight into the Synergistic Mechanism of Nigella sativa (Black Cumin) with β-Lactam Antibiotics against Clinical Isolates of Methicillin-Resistant Staphylococcus aureus

2021 ◽  
Vol 11 (7) ◽  
pp. 3206
Author(s):  
Lorina I. Badger-Emeka ◽  
Promise Madu Emeka ◽  
Hairul Islam M. Ibrahim
Keyword(s):  
Staphylococcus Aureus ◽  
Mechanism Of Action ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Nigella Sativa ◽  
Synergistic Effects ◽  
Diffusion Method ◽  
Methicillin Resistant ◽  
Cell Wall Disruption ◽  
Time Kill ◽  
Insight Into

Methicillin-resistant Staphylococcus aureus (MRSA) infection is detrimental to hospitalized patients. With diminishing choices of antibiotics and the worry about resistance to colistin in synergistic combined therapy, there are suggestions for the use of herbal derivatives. This investigation evaluated the synergistic effects of Nigella sativa (NS) in combination with beta-lactam (β-lactam) antibiotics on extreme drug-resistant (XDR) MRSA isolates. NS concentrations of 10, 7.5, 5.0, 2.5, 1.0, and 0.1 µg/mL, alone and in combination with β-lactam antibiotics, were used to determine the antimicrobial susceptibility of MRSA isolates by the well diffusion method. Time–kill assays were performed using a spectrophotometer, with time–kill curves plotted and synergism ascertained by the fractional inhibitory concentration (FIC). Scanning and transmission electron microscopy were used to gain insight into the mechanism of action of treated groups. Isolates were inhibited by the NS concentrations, with differences in the zones of inhibition being statistically insignificant at p < 0.05. There were statistically significant differences in the time–kill assay for the MRSA isolates. In addition, NS combined with augmentin showed better killing than oxacillin and cefuroxime. The mechanism of action shown by the SEM and TEM results revealed cell wall disruption, which probably created interference that led to bacterial lysis.

scholarly journals Clinical Application and Efficacy of Silver Drug in Ophthalmology: A Literature Review and New Formulation of EYE Drops with Drug Silver (I) Complex of Metronidazole with Improved Dosage Form

Biomedicines ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 210
Author(s):  
Arleta Waszczykowska ◽  
Dominik Żyro ◽  
Justyn Ochocki ◽  
Piotr Jurowski
Keyword(s):  
Dosage Form ◽  
Complex Analysis ◽  
Bacterial Resistance ◽  
Eye Drops ◽  
Ophthalmic Diseases ◽  
The Stability ◽  
New Formulation ◽  
Additional Therapy ◽  
Antibacterial Potential

The use of silver preparations in medicine is becoming increasingly popular. The basic aim of this evaluation was to review the literature on the clinical (in vivo) and antibacterial potential of silver preparations in ophthalmic diseases. The second goal was to summarize the results of experimental research on the use of silver preparations in ophthalmology. The third objective was to present a method for stabilizing eye drops containing silver (I) complex. Analysis of the pH stability of the silver (I) complex with metronidazole in the prepared dosage form (eye drops) was carried out. Most silver preparations are clinically used for topical application. Few experimental results indicate the usefulness of intraocular or systemic administration of silver (I) preparations as an alternative or additional therapy in infectious and angiogenic eye diseases. The development of a new formulation increases the stability of the dosage form. New forms of silver (I) products will certainly find application in the treatment of many ophthalmic diseases. One of the most important features of the silver (I) complex is its capacity to break down bacterial resistance. The new eye drops formula can significantly improve comfort of use. Due to their chemical nature, silver (I) compounds are difficult to stabilize, especially in the finished dosage form.

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