Sumardi Sumardi, Rochmah Agustrina, Christina Nugroho Ekowati, Rizani Oktanisyah Putra, Madi Hartono


This study was aimed to test the growth of bacteria Escherichia coli (E. coli) and Bacillus sp. which were exposed to magnetic fields. In the first stage of the study, the effect of magnetic fields on the growth of E. coli and Bacillus sp were observed. The futher study was aimed to evaluate the effect of magnetic field on antibiotic sensitivity againts the growth of E. coli and Bacillus sp. The magnetic fields treatments were 0.0 mT (control), 0.1 mT, 0.2 mT, 0.3 mT which were exposed for 10 hours for each treatment. Five antibiotics (trimethoprim, ampicillin, nalidixic acid, streptomycin and chloramphenicol) were used for each bacteria. The result showed that the magnetic field did not influence the colony growth of E.coli, but in Bacillus sp. was seen the increasing of colony area in magnetic field of 0.1 mT and 0.2 mT compared with control treatment. Antibiotic of trimethoprim, nalidixic acid, and ampicillin increase the growth inhibition of E. coli when the bacteria have been exposed to 0.1 mT; 0.2 mT; 0.3 mT magnetic field for 10 minutes. The inhibition by streptomycin and chloramphenicol antibiotic on E. coli did not affected by magnetic field exposure. The inhibition of Bacillus sp by trimethoprim and ampicillin increased when the bacteria have been exposed to 0.2 mT and 0.3 mT magnetic field for 10 minutes. The inhibition of nalidixic acid, streptomycin and chloramphenicol to Bacillus sp. did not affected by the magnetic field exposure.


E. coli, Bacillus sp., magnetic field, Antibiotic, clear zone

Full Text:



Fajri,M.D.M, Sudarti and Yushardi. 2015. Analisis Dampak Paparan Medan Magnet extremely Low Frequency (ELF) Intensitas >100 µT terhadap Kelainan Konginital bayi Tikus Putih strain Wistar. Jurnal Pendidikan Fisika, 4 (1): 15-20

Fojt, L., K.lapetek. P., Strasak. L. Vetterl. V. 2009. 50Hz Magnetic Field Effect on The Morphology of Bacteria. Micron. 40 (8) : 918-922.

Gaafar, El-Sayed A., Magda S. Hanafy., Eman Y. Tohamy., Mona H. Ibraheim. 2006. Stimulation And Control Of E. Coli By Using An Extremely Low Fregquency Magnetik Field. Romanian Jurnal Biophys. 16 (4) : 283–296

Griffith, J. D., Comeau, L., Rosenfield, S., Stansel, R. M., Bianch, A., Moss, H. 2001. Mammalian Tellomeres end in a large duplex loop. Cell. 14, 97 (4) : 503-514.

Ibraheim, M. H and Darwish D.B.E. 2013. 50 Hz Frequency Magnetic Field Effects On Pseudomonas Aeruginosa And Bacillus Subtilis Bacteria. Journal of Applied Physics (IOSR-JAP), e-ISSN: 22784861. 5 (3): 49-56

Li. J., Yi. Y., Cheng. X., Zhang. D., Irfan. M. 2015. Study on The Effect of Magnetic Field Treatment of Newly Isolated Paenibacillus sp. Botanical Study a Springer Open Journal. Doi: 10.1186/s40529-0150083-9

Ma’rufiyanti. P., Sudarti, and Gani. A. A. 2014. Pengaruh Pemaparan Medan Magnet ELF (Extremly low Frequency) 300mT dan 500 mT Terhadap Perubahan Vitamin C dan Derajat Keasaman (pH) Pada Buah Tomat. Jurnal Pendidikan Fisika, 3 (3): 278-284.

Segatore, B., Setacci, D., Bennato, F., Cardigno, R., Amicosante, G. and Iorio, R., 2012. Evaluations of the Effects of Extremely Low-Frequency Electromagnetic Fields on Growth and Antibiotic Susceptibility of Escherichia coli and Pseudomonas aeruginosa. International Journal of Microbiology. 2012(Article ID 587293): 7.

Taqavi, M., Nafisi, S., Tanoomand, A., EbrahimPour, K., Kardan, D., Moaddab S. R. and Badihi, K., 2012. Study the Effects of High and Low Frequencies Pulsed Square Electromagnetic Fields on the Logarithmic Growth of the E. coli. International Journal of Microbiological 3 (3): 238-241.


Article Metrics

Abstract view : 0 times
PDF - 0 times


  • There are currently no refbacks.

Copyright (c) 2020 by author and J. Kedokt. Hewan

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Indexed by:


p-ISSN: 1978-225X e-ISSN: 2502-5600 Copyright© 2007-2021