UJI AKTIVITAS  ANTI BAKTERI ASAP CAIR YANG BERASAL DARI  BATANG KAYU MANIS DAN KULIT KACANG TANAH

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.

Download Full-text

Antibacterial Activity of Nanoparticles Produced by Ethanol Extract of Boesenbergia rotunda Rhizome Loaded with Chitosan and Alginic Acid Against Streptococcus mutans by In Vitro

International Journal of Drug Delivery Technology ◽

10.25258/ijddt.v7i03.9554 ◽

2017 ◽

Vol 7 (03) ◽

Author(s):

Sri Atun ◽

Sri Handayani ◽

Melia Aliffiana ◽

Hajar Nur Afifah ◽

Anna Rakhmawati

Keyword(s):

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Antibacterial Agent ◽

Methanol Extract ◽

Alginic Acid ◽

Ethanol Extract ◽

Diffusion Method ◽

E Coli ◽

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.

Download Full-text

UJI AKTIVITAS ANTIBAKTERI ALGA HIJAU (Ulva sp.) DARI PANTAI SORIDO BIAK TERHADAP BAKTERI Escherichia coli DAN Staphylococcus aureus

Jurnal Farmasi Medica/Pharmacy Medical Journal (PMJ) ◽

10.35799/pmj.1.1.2018.19646 ◽

2018 ◽

Vol 1 (1) ◽

Author(s):

Melisa Selly Liswandari

Keyword(s):

Escherichia Coli ◽

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Ethyl Acetate ◽

Green Algae ◽

Antibacterial Agent ◽

Solvent Polarity ◽

Negative Control ◽

Diffusion Method ◽

Significant Difference

UJI AKTIVITAS ANTIBAKTERI ALGA HIJAU (Ulva sp.) DARI PANTAI SORIDO BIAK TERHADAP BAKTERI Escherichia coli DAN Staphylococcus aureus Melisa Selly Liswandari1), Daniel Lantang2), Septriyanto Dirgantara1)1)Program Studi Farmasi, Fakultas MIPA Universitas Cenderawasih, Jayapura2)Jurusan Biologi, Fakultas MIPA Universitas Cenderawasih, Jayapura, Kampus UNCEN Waena. Jl Perumnas III Waena Jayapura 99351 PapuaEmail*: [email protected] ABSTRACT The green algae (Ulva sp.) are potentially as antibacterial agent because it contains triterpenoids, flavonoids, and saponins. The objective of this research are to know antibacterial activity of green algae (Ulva sp.) extracts using different levels of solvent polarity and the most effective concentration inhibits the growth of bacterial Escherichia coli and Staphylococcus aureus. Green algae (Ulva sp.) extracted by stratified soxletation method using solvent, eq diethyl ether, ethyl acetate, and ethanol 96%. Test antibacterial activity using the disc diffusion method. This research using the of CRD (Completely Randomize Design) with 7 treatments was concentration of 100 ppm, 250 ppm, 500 ppm, 750 ppm, 1000 ppm, positive control (ciprofloxacin 5µg) and negative control (aquades steril) with 3 repetitions. The data was analyzed using ANOVA and continued by HSD (Honestly Significant Difference) test with 95% confidence level. The result was demonstrated that extract green algae (Ulva sp.) the most effective to inhibits the growth of bacterial Escherichia coli is ethyl acetate extract with concentration 250 ppm (9,26 mm) and bacterial Staphylococcus aureus is ethanol 96% extract with concentration 750 ppm (9,57 mm). Keywords : Ulva sp., antibacterial agent, Escherichia coli, Staphylococcus aureus. ABSTRAK Alga hijau (Ulva sp.) berpotensi sebagai antibakteri karena mengandung triterpenoid, flavonoid, dan saponin. Tujuan dari penelitian ini adalah untuk mengetahui aktivitas antibakteri ekstrak alga hijau (Ulva sp.) yang menggunakan tingkat kepolaran pelarut berbeda dan konsentrasi yang paling efektif dalam menghambat pertumbuhan bakteri Escherichia coli dan Staphylococcus aureus. Alga hijau (Ulva sp.) diekstraksi dengan metode sokletasi bertingkat menggunakan pelarut dietil eter, etil asetat, dan etanol 96%. Uji aktivitas antibakteri menggunakan metode difusi cakram. Penelitian ini menggunakan RAL dengan 7 perlakuan yaitu konsentrasi 100 ppm, 250 ppm, 500 ppm, 750 ppm, 1000 ppm, kontrol positif (ciprofloxasin 5µg) dan kontrol negatif (akuades steril) dengan 3 pengulangan. Data analisis menggunakan ANOVA dan dilakukan uji lanjut BNJ dengan tingkat kepercayaan 95%. Hasil penelitian menunjukkan bahwa ekstrak alga hijau (Ulva sp.) yang paling efektif untuk menghambat pertumbuhan bakteri Escherichia coli adalah ekstrak etil asetat dengan konsentrasi 250 ppm (9,26 mm) dan bakteri Staphylococcus aureus adalah ekstrak etanol 96% dengan konsentrasi 750 ppm (9,57 mm). Kata kunci : Ulva sp., antibakteri, Escherichia coli, Staphylococcus aureus.

Download Full-text

Sintesis dan Uji Aktivitas Antibakteri Senyawa N-fenil-4-klorobenzamida

Pustaka Kesehatan ◽

10.19184/pk.v6i2.7569 ◽

2018 ◽

Vol 6 (2) ◽

pp. 212

Author(s):

Elok Dea Orens Ubung Wisnu ◽

Indah Purnama Sary ◽

Dwi Koko Pratoko

Keyword(s):

Staphylococcus Aureus ◽

Pseudomonas Aeruginosa ◽

Antibacterial Activity ◽

Antibacterial Agent ◽

Diffusion Method ◽

Gram Negative Bacteria ◽

Crystal Shape ◽

Gram Negative ◽

Gram Positive Bacteria ◽

Benzamide Derivatives

N-phenylbenzamide is benzamide derivatives, which is potential as an antibacterial agent. N-phenyl-4-chlorobenzamide is N-phenylbenzamide derivative that substitued by chloro to the para position and it was expected to enhance the antibacterial activity. N-phenyl-4-chlorobenzamide was synthesized by reacting 1,3-diphenyilthiourea and 4-chlorobenzoil chloride. This compound has been purified and provided 53% of product with crystal shape, white color, and melting point of 195-197 oC. The purification of this compound was confirmed by TLC and the structure was identified by 1H-NMR, 13C-NMR, and FTIR spectroscopy. This compound was tested for its activity against gram positive bacteria Staphylococcus aureus and gram negative bacteria Pseudomonas aeruginosa, evaluated by well diffusion method and the result showed no activity against both Staphylococcus aureus and Pseudomonas aeruginosa. Keywords: N-phenyl-4-chlorobenzamide, synthesis, antibacterial activity

Download Full-text

The Preparation of Carbon Microspheres Loading Silver Antimicrobial Agent and the Study of its Properties

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.550-553.1026 ◽

2012 ◽

Vol 550-553 ◽

pp. 1026-1029

Author(s):

Jian Xi Ren ◽

Jing Ya Li ◽

Zhi Feng Cai ◽

Jin Ming Dai ◽

Mei Niu ◽

...

Keyword(s):

Escherichia Coli ◽

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Electron Microscope ◽

Antibacterial Agent ◽

Chemical Adsorption ◽

Carbon Microspheres ◽

Bacterial Inhibition ◽

Good Antibacterial Activity ◽

Scanning Electron

Carbon microspheres (CMSs) were used as the carrier to prepare the Ag-loading CMSs (Ag/CMSs) antibacterial agent through the method of chemical adsorption. The morphologies and structures of modified CMSs were characterized by using the field emission Scanning Electron Microscope (SEM). The results showed that silver was absorbed on the surface of CMSs. The bacterial inhibition ring experiment showed that Ag/CMSs had good antibacterial activity against Staphylococcus aureus and Escherichia coli, meanwhile the diameters of the bacterial inhibition rings were 19 mm against Staphylococcus aureus and 21 mm against Escherichia coli, respectively.

Download Full-text

UJI AKTIVITAS ANTIBAKTERI FORMULASI GEL UNTUK SARIAWAN DARI EKSTRAK DAUN SAGA ( Abrus precatorius Linn. ) TERHADAP BAKTERI Staphylococcus aureus

Jurnal Ilmiah Manuntung ◽

10.51352/jim.v2i2.72 ◽

2017 ◽

Vol 2 (2) ◽

pp. 239

Author(s):

Ratih Dyah Pertiwi ◽

Joni Kristanto ◽

Graha Ayu Praptiwi

Keyword(s):

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Chemical Constituents ◽

Optimal Concentration ◽

Diffusion Method ◽

Abrus Precatorius ◽

Agar Diffusion ◽

Medicinal Properties ◽

Agar Diffusion Method ◽

Gel Preparation

One of plants used by Indonesian people as a traditional medicine is saga plant (Abrus precatorius L.). This plant has medicinal properties as medication for thrush, cough and laryngitis. Chemical constituents contained in sage leaves which work as antibacterial are flavonoid and saponin. This study aims to determine the optimal concentration of saga leaves extract which can be formulated in a gel dosage form with qualified physical evaluation and has antibacterial activity against Staphylococcus aureus. Saga leaves extract is prepared by maceration method using ethanol 70% as solvent, and then the extract obtained is preliminarily tested to see its antibacterial activity against Staphylococcus aureus with agar diffusion method. Gel formulation for thrush is made with dispersion method in three formulas with variants of active substance concentration that is FI (1%), FII (3%) and FIII (5%). Gel preparation antibacterial activity test is conducted with agar diffusion method as a plate cylinder. Based on this research, it was found that the extract of saga leaves which is positively made is efficacious as antibacterial and can be formulated into a gel preparation for thrush with optimal concentration in F III (5%), this is indicated by widest diameter of the inhibition area against Staphylococus aureus bacteria

Download Full-text

In VitroAntibacterial Potential of Extracts ofSterculia africana,Acacia sieberiana, andCassia abbreviatassp.abbreviataUsed by Yellow Baboons(Papio cynocephalus)for Possible Self-Medication in Mikumi National Park, Tanzania

International Journal of Zoology ◽

10.1155/2018/9407962 ◽

2018 ◽

Vol 2018 ◽

pp. 1-6

Author(s):

Irene Kirabo ◽

Faith P. Mabiki ◽

Robinson H. Mdegela ◽

Christopher J. D. Obbo

Keyword(s):

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Plant Extracts ◽

National Park ◽

Nonhuman Primates ◽

Diffusion Method ◽

Root Bark ◽

Self Medication ◽

Gram Positive ◽

Acacia Sieberiana

In the animals in general and nonhuman primates in particular self-medication has been widely reported; however, little is still known about the pharmacological activity of the extracts present in their daily diet. Thein vitroantibacterial activity of the stem, root bark, and leaf extracts of three selected plants on which yellow baboons feed in an unusual manner in Mikumi National Park, Tanzania, was evaluated. Crude plant extracts were tested against Gram positive and Gram negative bacteria of medical and veterinary importance employing a modified agar well diffusion method and Minimum Inhibitory Concentration (MIC) technique. The lowest MIC value for Gram positive strains was 0.31 mg/ml demonstrated byCassia abbreviatassp.abbreviataagainstStaphylococcus aureus(ATCC 25923). The highest susceptibility to the ethanol plant extracts was exhibited byPseudomonas aeruginosa,Escherichia coli,andStaphylococcus aureus,examples of microbes that affect both human and nonhuman primates. These findings demonstrate that the plant extracts fromSterculia africana,Acacia sieberiana,andCassia abbreviatassp.abbreviatahave antibacterial activity and may be used as feed for their prophylactic benefits. Remarkably, the lowest MIC of 0.16 mg/ml was only 16-fold weaker than Gentamicin, a standard drug.

Download Full-text

Synthesis and antibacterial activity evaluation of C-5 side chain modified analogues of FYL-66, a potential agent against methicillin-resistant Staphylococcus aureus

MedChemComm ◽

10.1039/c5md00101c ◽

2015 ◽

Vol 6 (6) ◽

pp. 1156-1172 ◽

Cited By ~ 3

Author(s):

Xiaoyan Yang ◽

Zicheng Li ◽

Zhenling Wang ◽

Zitai Sang ◽

Haiyue Long ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Animal Models ◽

Antibacterial Agent ◽

Methicillin Resistant Staphylococcus Aureus ◽

Biological Activities ◽

Side Chain ◽

Methicillin Resistant ◽

Activity Evaluation

Monofluoro- (39), difluoro- (40) and trifluoro- (41) substituted analogues showed different biological activities, and 40 is a potent antibacterial agent in animal models.

Download Full-text

Optical characterization and concentration-dependent antibacterial activity of silver nanoparticles (AgNPs) using aqueous Melastoma malabathricum extract against Staphylococcus aureus

International Journal of Research in Pharmaceutical Sciences ◽

10.26452/ijrps.v11i4.3160 ◽

2020 ◽

Vol 11 (4) ◽

pp. 5382-5387

Author(s):

Irshad Ul Haq Bhat ◽

Maisarah Binti Alias

Keyword(s):

Staphylococcus Aureus ◽

Silver Nanoparticles ◽

Antibacterial Activity ◽

Functional Groups ◽

Diffusion Method ◽

Synthetic Approach ◽

Potential Candidate ◽

X Ray ◽

Melastoma Malabathricum ◽

Resonance Band

The approach towards green synthetic methods has been enormously encouraged to synthesise nanoparticles for various uses. In this study, the one-pot synthetic method was adapted to synthesise silver nanoparticles (AgNPs) using Melastoma malabathricum (M. malabathricum) aqueous extract. The formation of AgNPs was confirmed by observing the results obtained by optical characterisation methods. The plasma resonance band along with shoulder at 375 nm and 595 nm, respectively, in Uv-Visible spectra supported the conversion of silver (Ag) to AgNPs reduced by functional groups present in the plant extract. The size of AgNPs was 31 nm and cubic in shape as confirmed by X-ray diffractometry (XRD) using Scherer equation. X-Ray Fluorescence (XRF) results also confirmed the presence of silver. The FTIR characterisation confirmed the presence of reducing functional groups. The antibacterial activity of AgNPs against Staphylococcus aureus (S. aureus) was carried out by disc diffusion method with increasing concentration of AgNPs, and enhanced inhibition zone was observed. The AgNPs obtained can be further explored against different bacterial strains and can a potential candidate as an antibacterial agent using the green synthetic approach.

Download Full-text

Aktivitas Antibakteri dan Antioksidan Asam Galat dari Kulit Buah Lokal yang Diproduksi dengan Tanase

ALCHEMY Jurnal Penelitian Kimia ◽

10.20961/alchemy.14.1.11300.148-159 ◽

2018 ◽

Vol 14 (1) ◽

pp. 148

Author(s):

Eka Junaidi ◽

Yunita Arian Sani Anwar

Keyword(s):

Escherichia Coli ◽

Staphylococcus Aureus ◽

Antioxidant Activity ◽

Antibacterial Activity ◽

Gallic Acid ◽

Diffusion Method ◽

Syzygium Cumini ◽

Garcinia Mangostana ◽

Dpph Method ◽

Fruit Waste

Penelitian ini merupakan lanjutan dari penelitian sebelumnya tentang produksi asam galat dari limbah kulit buah lokal di Lombok. Limbah kulit buah lokal yang digunakan yaitu kulit buah kepundung (Baccaurea racemosa Muell.Arg), kulit buah juwet (Syzygium cumini), dan kulit buah manggis (Garcinia mangostana). Pada penelitian ini dilakukan pengujian asam galat yang dihasilkan, untuk mengetahui aktivitas antioksidan dan antibakteri. Pengujian sifat antioksidan dilakukan dengan menggunakan metode DPPH, sedangkan aktivitas antibakteri diuji dengan menggunakan metode difusi agar pada bakteri Escherichia coli dan Staphylococcus aureus. Hasil penelitian menunjukkan bahwa asam galat dari ketiga kulit buah memiliki aktivitas antioksidan. Asam galat dari kulit buah kepundung, kulit buah juwet dan kulit buah manggis memiliki IC50 masing-masing sebesar 5.95; 5,96; dan 5,92 ppm. Berbeda dengan kemampuan sebagai antioksidan, asam galat resistan terhadap bakteri Escherichia coli dan Staphylococcus aureus yang menunjukkan bahwa asam galat tidak memiliki aktivitas sebagai antibakteri.Antibacterial and antioxidant activity of gallic acid from peel local fruit which produced by tannase. This research is a continuation of the previous research about the gallic acid production from peel fruit local in Lombok. The local fruit waste used are kepundung rind (Baccaurea racemosa Muell.Arg), juwet rind (Syzygium cumini) and mangosteen rind (Garcinia mangostana). In this research, the produced Gallic acid was tested to determine its antioxidant and antibacterial activity. The antioxidant test conducted by DPPH method, meanwhile, the antibacterial activity was performed by agar diffusion method to bacteria Escherichia coli and Staphylococcus aureus. The results show that the produce gallic acid from those three rind provide antioxidant activity. Gallic acid from kepundung rind, juwet rind, and mangosteen rind have IC50 values of 5,95; 5,96; and 5,92, respectively. Gallic acid not showed inhibitory actions against the growth of Escherichia coli and Staphylococcus aureus. This result show that gallic acid from local fruit waste did not provide an antibacterial activity.

Download Full-text