Metallic nanoparticles augmented the antibacterial potency of Rhodomyrtus tomentosa acetone extract against Escherichia coli

2017 ◽  
Vol 107 ◽  
pp. 181-184 ◽  
Author(s):  
Shiv Shankar ◽  
Sukanlaya Leejae ◽  
Lily Jaiswal ◽  
Supayang Piyawan Voravuthikunchai
Keyword(s):  
Escherichia Coli ◽  
Metallic Nanoparticles ◽  
Acetone Extract ◽  
Rhodomyrtus Tomentosa

PENGARUH EKSTRAK DAN FRAKSI DAUN KARAMUNTING (Rhodomyrtus tomentosa (Aiton) Hassk.) TERHADAP PERTUMBUHAN BAKTERI Eschericia coli

2019 ◽  
Vol 4 (3) ◽  
Author(s):  
Onny Indriani ◽  
Awalul Fatiqin ◽  
Tri Oktarina
Keyword(s):  
Escherichia Coli ◽  
Rhodomyrtus Tomentosa

Latar belakang: Salah satu tumbuhan yang digunakan sebagai obat adalah daun Karamunting (Rhodomyrtus tomentosa (Aiton.) Hassk.). Secara tradisional daun tumbuhan Karmunting digunakan sebagai obat cacing pada manusia, mengobati luka, kudis, mengurangi sakit kepala, mengobati sakit perut dan diare, menahan pendarahan dan juga digunakan untuk mencegah infeksi setelah melahirkan.Tujuan: Penelitian ini bertujuan untuk mengetahui pengaruh efek antibakteri fraksi  Daun Karamunting (Rhodomyrtus tomentosa (Aiton)Hassk) terhadap bakteri Escherichia coli dengan metode difusi agar. Metode: Jenis penelitian quasi eksperimen untuk mengetahui suatu gejala atau pengaruh yang timbul, sebagai akibat dari adanya perlakuan tertentu. Penelitian ini dilaksanakan pada bulan Mei 2019 sampai dengan bulan Agustus 2019. Dengan beberapa perlakuan dalam ekstraksi dilakukan metode maserasi yang diperoleh ekstrak kental sebanyak 161,5 gram dengan hasil rendemen 8,075% dari 2kg serbuk simplisia, pada fraksinasi menggunakan metode cair-cair dengan pelarut N-heksan (non polar) dengan hasil hasil 0.5099 gram, etil asetat (semi polar) dengan hasil 5,2997 gram, etanol (polar) dengan hasil 12,3887gram, kemudian diujikan pada pertumbuhan bakteri Eschericia coli dengan difusi agar lalu melakukan pengukuran zona bening dan di analisis dengan ANOVA pada nilai normality (p) >0,05. Hasil:  Ekstrak Daun karamunting dengan konsentrasi 40%-4,95mm, 60%-6,38mm, 80%-8,24mm, Fraksi etanol 60%-6,04mm, 80%-7,5mm, 100%-8,75mm dan fraksi etil 40%5-6mm, 60%-6,7mm, 80%- 7,48mm, tidak terbentuk zona hambat pada fraksi N-heksan dengan konsentrasi 16%, 32%, 64%. Kesimpulan: Terdapat pengaruh ekstrak Daun Karamunting (Rhodomyrtus tomentosa (Aiton) Hassk.) terhadap pertumbuhan Bakteri Eschericia coli. konsentrasi yang terbaik adalah Ekstak 80% dan Fraksi Etanol 100% dikarenakan pada hasil uji dinyatakan tidak berbeda signifikan dinyatakan nilai (p) > 0,05. Kata kunci : Ekstrak, Fraksi, Daun Karamunting, Antibakteri, E.coli

Rhodomyrtone, an antibotic from Rhodomyrtus tomentosa

2002 ◽  
Vol 55 (3) ◽  
pp. 229 ◽  
Author(s):  
Dachriyanus Salni ◽  
M. V. Sargent ◽  
B. W. Skelton ◽  
I. Soediro ◽  
M. Sutisna ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Ethyl Acetate ◽  
Single Crystal ◽  
Ethyl Acetate Extract ◽  
Significant Activity ◽  
Structural Determination ◽  
X Ray ◽  
And Staphylococcus Aureus ◽  
Rhodomyrtus Tomentosa

The ethyl acetate extract of the leaves of Rhodomyrtus tomentosa (Ait.) Hassk. yielded rhodomyrtone (5) [6,8-dihydroxy-2,2,4,4-tetramethyl-7-(3-methyl-1-oxobutyl)-9-(2-methylpropyl)-4,9-dihydro-1H-xanthene-1,3(2H)-di-one] which had significant activity against Escherichia coli and Staphylococcus aureus. The structural elucidation followed from spectroscopic evidence and from a single-crystal X-ray structural determination.

scholarly journals Investigation of Nanoparticle Metallic Core Antibacterial Activity: Gold and Silver Nanoparticles against Escherichia coli and Staphylococcus aureus

2021 ◽  
Vol 22 (4) ◽  
pp. 1905
Author(s):  
Jimmy Gouyau ◽  
Raphaël E. Duval ◽  
Ariane Boudier ◽  
Emmanuel Lamouroux
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Metallic Nanoparticles ◽  
Catalytic Reduction ◽  
Gold And Silver Nanoparticles ◽  
High Antibacterial Activity ◽  
Vis Spectroscopy ◽  
Broth Microdilution Method

Multidrug-resistant (MDR) bacteria constitute a global health issue. Over the past ten years, interest in nanoparticles, particularly metallic ones, has grown as potential antibacterial candidates. However, as there is no consensus about the procedure to characterize the metallic nanoparticles (MNPs; i.e., metallic aggregates) and evaluate their antibacterial activity, it is impossible to conclude about their real effectiveness as a new antibacterial agent. To give part of the answer to this question, 12 nm gold and silver nanoparticles have been prepared by a chemical approach. After their characterization by transmission electronic microscopy (TEM), Dynamic Light Scattering (DLS), and UltraViolet-visible (UV-vis) spectroscopy, their surface accessibility was tested through the catalytic reduction of the 4-nitrophenol, and their stability in bacterial culture medium was studied. Finally, the antibacterial activities of 12 nm gold and silver nanoparticles facing Staphylococcus aureus and Escherichia coli have been evaluated using the broth microdilution method. The results show that gold nanoparticles have a weak antibacterial activity (i.e., slight inhibition of bacterial growth) against the two bacteria tested. In contrast, silver nanoparticles have no activity on S. aureus but demonstrate a high antibacterial activity against Escherichia coli, with a minimum inhibitory concentration of 128 µmol/L. This high antibacterial activity is also maintained against two MDR-E. coli strains.

scholarly journals Effect of Citrus aurantifolia Seed Extracts In Some Bacteria Isolated From Burns Infections

2014 ◽  
Vol 11 (2) ◽  
pp. 773-780
Author(s):  
Baghdad Science Journal
Keyword(s):  
Escherichia Coli ◽  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Aqueous Extract ◽  
Antibiotic Sensitivity ◽  
Inhibition Zone ◽  
Acetone Extract ◽  
Hot Water ◽  
Alcoholic Extract

The present study was carried to evaluate antibacterial activity of Acetone, Alcholic (cold and hot) and Aqueaus(water) extracts of Citrus aurantifoliaseeds,against growth of some bacteria isolated from burns infections(Pseudomonas aeruginosa,Escherichia coli, Klebsiellapneumonia,Staphylococcusaureus)fromKindy HospitalIn Baghdad from March to June 2012.Antibiotic Sensitivity was done for all isolated bacteria used in this study.Results showed variation in antibacterial activity of different extracts against all tested bacteria by well diffusion technique in agar and measuring the diameter of inhibition zone, at concentration 250Mg-ml. Acetone extract had the greatest inhibitory effect followed by hot alcoholci extract, and then cold alcoholic extract,while the aqueous extract slightly inhibited bacteria. Minimum inhibitory concentration(MIC)were determined for all extracts against studying bacteria and found(12.5-50)mg-ml for acetone and alcoholic extracts, MIC for aqueous extract was 50mg-ml forPseudomonasaeruginosa and Escherichia coli,while was no effect onKlebsiellapneumonia and Staphylococcusaureus. Minimum Bacterial Concentration(MBC)were determined and was found25-50mg-ml for acetone extract,hot water was25mg-ml, cold alcoholic extract was 50mg-ml forPseudomonasaeruginosa,Escherichia coli andKlebsiella pneumonia but showed no effect on Staphylococcus aureus, aqueous extract showed negative effect on alltested bacteria. The antimicrobial activity of hot alcoholic extract of seeds was investigated practically (in vivo) by treating burns mices infected with tested bacteria(Pseudomonas aeruginosa,Escherichia coli and Klebsiellapneumonia),the results revealed good recovery at short time comparing with antibiotic(Flamazine) used at the same time.

scholarly journals Uji Kandungan Senyawa Metabolit Sekunder pada Ekstrak Daun Jambu Biji (Psidium guajava L var. Pomifera) dari Kota Langsa, Aceh

2021 ◽  
Vol 3 (1) ◽  
pp. 12-18
Author(s):  
Reni Aisyah Simbolon ◽  
Halimatussakdiah Halimatussakdiah ◽  
Ulil Amna
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Lactobacillus Acidophilus ◽  
Oreochromis Niloticus ◽  
Psidium Guajava ◽  
Phytochemical Analysis ◽  
Annona Muricata ◽  
Steroid Saponin ◽  
Rhodomyrtus Tomentosa

Tumbuhan jambu biji (Psidium guajava L var. pomifera) adalah salah satu tanaman obat-obatan yang sering dimanfaatkan oleh masyarakat khususnya di Indonesia. Tumbuhan yang termasuk ke dalam famili Myrtaceae tersebut memiliki khasiat sebagai antidiare, antioksidan, antiinflamasi, dan antimikroba. Penelitian ini bertujuan untuk mengetahui kandungan senyawa metabolit sekunder yang terdapat dalam daun jambu biji merah (Psidium guajava  L. Var. Pomifera). Berdasarkan pengujian fitokimia yang telah dilakukan, menunjukkan bahwa daun kering positif mengandung senyawa steroid, saponin, fenol, dan tanin. Sedangkan pada daun segar positif mengandung senyawa alkaloid, steroid, saponin, fenol, dan tanin. Referensi : [1]       S. S. H. Aponno V. J., Yamlean Y. V. P., “Uji Efektivitas Sediaan Gel Ekstrak Etanol Daun Jambu Biji (Psidium guajava Linn) terhadap Penyembuhan Luka yang Terinfeksi Bakteri Staphylococcus Aureus pada Kelinci (Orytolagus cuniculus),” PHARMACON, vol. 3, no. 3, pp. 279–286, 2014, doi: 10.35799/pha.3.2014.5400. [2]       R. Rachmaniar, H. Kartamihardja, and Merry, “Pemanfaatan Buah Jambu Biji Merah (Psidium guajava Linn.) Sebagai Antioksidan Dalam Bentuk Granul Effervescent,” JSTFI Indones. J. Pharm. Sci. Technol., vol. 1, no. 5, pp. 1–20, 2016. [3]       Z. S. Desiyana S. L., Husni A. M., “Uji Efektivitas Sedian Gel Fraksi Etil Asetat Daun Jambu Biji (Psidium Guajava Linn) terhadap Penyenmbuhan Luka Terbuka pada Mencit (Mus musculus).,” J. Nat., vol. 16, no. 2, pp. 23–32, 2016. [4]       Rabbiyah F., “Pengaruh Pemberian Ekstrak Daun Jambu Biji (Psidium guajava Linn.) terhadap Pengikatan Trombosit pada Pasien Demam Berdarah Dengue,” J. Major., vol. 4, no. 7, pp. 91–96, 2015. [5]       T. Handayani, Witjaksono, and K. U. Nugraheni, “Induksi Tetraploid Pada Tanaman Jambu Biji Merah (Psidium guajava L.) secara In Vitro,” J. Biol. Indones., vol. 13, no. 2, pp. 271–278, 2017, doi: 10.47349/jbi/13022017/271. [6]       Y. Tampubolon R. T., “Pengaruh Formulasi Terhadap Sifat Fisik, Kimia, dan Organoleptik Effervescent Jambu Biji Merah (Psidium guajava var. Pomifera).,” J. Pangan dan Agroindustri, vol. 5, no. 3, pp. 27–37, 2017. [7]      S. A. Ariyani A. M. D., Santoso I. S., “Analisa Profitalitas Usaha Tani Jambu Biji Getas Merah di Kabupaten Kendal,” Acromedia, vol. 35, no. 2, pp. 10–18, 2017. [8]       I. S. W. Atmaja, Ismail Saleh, R. Eviyati, and D. Budirokhman, “Kajian Aplikasi Pupuk Kandang dan Pupuk Npk Terhadap Kualitas dan Mutu Jambu Biji Merah (Psidium guajava L.) Kultivar Getas pada Musim Kemarau,” J. Agrovigor, vol. 9, no. 2, pp. 111–117, 2016. [9]       C. Dhyan, S. H. Sumarlan, and B. Susilo, “Pengaruh Pelapisan Lilin Lebah dan Suhu Penyimpanan Terhadap Kualitas Buah Jambu Biji (Psidium Guajava L.),” J. Bioproses Komod. Trop., vol. 2, no. 1, pp. 79–90, 2014. [10]     W. N. Gunawan R., Susanto H. W., “Pengaruh Lama Pemanasan dan Konsentrasi Maizena terhadap Karakteristik Fisik, Kimia dan Organoleptik Lempok Jambu Biji Merah (Psidium Guajava L.),” J. Pangan dan Agroindustri, vol. 6, no. 1, pp. 1–11, 2018. [11]     D. N. Maria and E. Zubaidah, “Pembuatan Velva Jambu Biji Merah Probiotik (Lactobacillus Acidophilus) Kajian Persentase Penambahan Sukrosa dan CMC,” J. Pangan dan Agroindustri, vol. 2, no. 4, pp. 18–28, 2014. [12]     W. R. Andriani, “Efektivitas Mengkonsumsi Jus Apel Dibandingkan dengan Mengkonsumsi Jus Jambu Biji terhadap Penurunan Tingkat Halitosis,” AcTion Aceh Nutr. J., vol. 3, no. 2, pp. 164–171, 2018. [13]     F. Nadifah, S. Fatimah, and L. Susanti, “Pengaruh Infusa Daun Jambu Biji (Psidium guajava Linn.) Terhadap Pertumbuhan Bakteri Escherichia coli Secara In Vitro,” J. Heal., vol. 2, no. 2, pp. 65–68, 2015, doi: 10.30590/vol2-no2-p65-68. [14]     I. B. Wicaksono and M. Ulfah, “Uji Aktivitas Antioksidan Kombinasi Ekstrak Etanol Daun Sirsak (Annona muricata L.) dan Daun Jambu Biji (Psidium guajava L.) dengan Metode DPPH (2,2-difenil-1-pikrihidrazil),” Inov. Tek. Kim., vol. 2, no. 1, pp. 44–48, 2017. [15]     I. Hartati, S. Nurfaizin, Suwardiyono, and L. Kurniasari, “Ekstraksi Gelombang Mikro Terpenoid Daun Surian (Toona sureni Merr),” Inov. Tek. Kim., vol. 1, no. 2, pp. 98–103, 2016. [16]     A. U. Mulyanto S., Sumardianto, “Pengaruh Penambahan Ekstrak Daun Jambu Biji Merah (Psidium guajava) terhadap Daya Simpan Ikan Nila Merah (Oreochromis niloticus) pada Suhu Dingin,” J. Pengolah. dan Bioteknol. Has. Perikan., vol. 6, no. 4, pp. 1–7, 2018. [17]     H. Setiawan, L. B. Utami, and M. Zulfikar, “Serbuk Daun Jambu Biji Memperbaiki Performans Pertumbuhan dan Morfologi Duodenum Ayam Jawa Super,” J. Vet., vol. 19, no. 4, pp. 554–562, 2018. [18]     H. Halimatussakdiah, U. Amna, and P. Wahyuningsih, “Preliminary Phytochemical Analysis and Larvicidal Activity of Edible Fern (Diplazium esculentum (Retz.) Sw.) Extract against Culex,” J. Nat., vol. 18, no. 3, pp. 141–146, 2018, doi: 10.24815/jn.v0i0.11335. [19]     R. Ningrum, E. Purwanti, and Sukarsono, “Identifikasi Senyawa Alkaloid dari Batang Karamunting (Rhodomyrtus tomentosa) Sebagai Bahan Ajar Biologi Untuk SMA Kelas X,” J. Pendidik. Biol. Indinesia, vol. 2, no. 3, pp. 231–236, 2016. [20]     A. R. Nasrudin., Wahyono., Mustofa., Saridarti, “Isolasi Senyawa dari Kulit Akar Sengugun (Elerdenrum serratum L. Moon),” J. Ilm. Farm., vol. 6, no. 3, pp. 332–337, 2017. [21]     N. Hidayah, “Pemanfaatan Senyawa Metabolit Sekunder Tanaman (Tanin dan Saponin) dalam Mengurangi Emisi Metan Ternak Ruminansia,” J. Sain Peternak. Indones., vol. 1, no. 2, pp. 89–98, 2016, doi: 10.31186/jspi.id.11.2.89-98. [22]     Z. D. Novitasari, E. A. dan Putri, “Isolasi dan Identifikasi Saponin Saponin Pada Ekstrak Daun Mahkota Dewa Dengan Metode Maserasi,” J. Sains, vol. 6, no. 12, pp. 10–13, 2016. [23]     B. Bintoro, A., Ibrahim, M.A., Situmeang, “Analisis Dan Identifikasi Senyawa Saponin dari Daun Sidara (Zhizipus Mauritania L.),” J. Itekimia, vol. 29, no. 1, pp. 84–93, 2017. [24]     . Y., H. Purnamaningsih, A. Nururrozi, and S. Indarjulianto, “Saponin : Dampak terhadap Ternak (Ulasan),” J. Peternak. Sriwij., vol. 6, no. 2, pp. 79–90, 2017, doi: 10.33230/jps.6.2.2017.5083.

scholarly journals Invivo Effect Analysis of Rhodomyrtus tomentosa Leaf Ethanol Extract Against Escherichia coli

2021 ◽  
Vol 7 (1) ◽  
pp. 83
Author(s):  
Doris Noviani ◽  
Adisty Dwi Treasa ◽  
Ade Zakiya Tasman Munaf ◽  
Sri Winarsih ◽  
Dwi Yuni Nur Hidayati ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Ethanol Extract ◽  
The Body ◽  
Infection Model ◽  
Mice Model ◽  
Toxic Dose ◽  
Puerperal Infection ◽  
Increased Risk ◽  
Escherichia Coli Bacteria ◽  
Rhodomyrtus Tomentosa

Puerperium infection contributed 11 percent of 48.17 percent of maternal mortality during the puerperium period; one of the causes of increased risk of puerperium infection was bacteria Gram-negative Escherichia coli. Puerperium infection occurred because bacteria enter through the vagina, wounds on the insertion of the placenta, and other parts spread to blood throughout the body and damage the spleen, liver, and uterus. This research aimed to determine the effect of Rhodomyrtus tomentosa leaves ethanol extract (Rtl-EE) as an antibacterial on the spleen, liver, and uterus of Escherichia coli -induced puerperal infection model mice. Mice in the postnatal treatment group were induced by Escherichia coli bacteria intravaginally and given different doses of ethanol extract of Rhodomyrtus tomentosa leaves. Examination of bacterial colonies growth used pour plate method with EMBA media. The research results showed that the administration of Rtl-EE decreased the growth of bacterial colonies respectively in the liver 1280, 924, 330 CFU/mL; the uterus 1806, 1180, 874 CFU/mL; and the spleen 712, 112, 774 CFU/mL. Colony growth started to decrease at dose 1 of Rtl-EE (100mg/kg BW) of mice model of Escherichia coli -induced puerperal infection. Rhodomyrtus tomentosa leaves contain active compounds - phenols, flavonoids, saponins, tannins, alkaloids, and triterpenoids as antibacterial. Rtl-EE had an antibacterial effect by reducing the number of bacteria on the spleen, liver, and uterus of Escherichia coli -induced puerperal infection model mice. Further research needs to conduct to examine the toxic dose of Rhodomyrtus tomentosa leaves against Escherichia coli bacteria.

scholarly journals Nanomaterials in the Management of Gram-Negative Bacterial Infections

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2535
Author(s):  
Mahmood Barani ◽  
Mahira Zeeshan ◽  
Davood Kalantar-Neyestanaki ◽  
Muhammad Asim Farooq ◽  
Abbas Rahdar ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Metallic Nanoparticles ◽  
Bacterial Infections ◽  
Point Of Care ◽  
Cost Effective ◽  
E Coli ◽  
Safety And Health ◽  
Microbial Infections ◽  
Infected Area ◽  
Escherichia Coli Infection

The exploration of multiplexed bacterial virulence factors is a major problem in the early stages of Escherichia coli infection therapy. Traditional methods for detecting Escherichia coli (E. coli), such as serological experiments, immunoassays, polymerase chain reaction, and isothermal microcalorimetry have some drawbacks. As a result, detecting E. coli in a timely, cost-effective, and sensitive manner is critical for various areas of human safety and health. Intelligent devices based on nanotechnology are paving the way for fast and early detection of E. coli at the point of care. Due to their specific optical, magnetic, and electrical capabilities, nanostructures can play an important role in bacterial sensors. Another one of the applications involved use of nanomaterials in fighting microbial infections, including E. coli mediated infections. Various types of nanomaterials, either used directly as an antibacterial agent such as metallic nanoparticles (NPs) (silver, gold, zinc, etc.), or as a nanocarrier to deliver and target the antibiotic to the E. coli and its infected area. Among different types, polymeric NPs, lipidic nanocarriers, metallic nanocarriers, nanomicelles, nanoemulsion/ nanosuspension, dendrimers, graphene, etc. proved to be effective vehicles to deliver the drug in a controlled fashion at the targeted site with lower off-site drug leakage and side effects.

Sign in / Sign up

Export Citation Format

Share Document