Antibacterial effect of low-level blue light on Propionibacterium acnes and antibiotic-resistant P acnes

2019 ◽  
Vol 81 (4) ◽  
pp. AB433
Keyword(s):  
Blue Light ◽  
Propionibacterium Acnes ◽  
Antibacterial Effect ◽  
Antibiotic Resistant ◽  
Low Level

Optimizing the bactericidal effect of pulsed blue light on Propionibacterium acnes - A correlative fluorescence spectroscopy study

2020 ◽  
Vol 202 ◽  
pp. 111701 ◽  
Author(s):  
Violet Vakunseh Bumah ◽  
Daniela Santos Masson-Meyers ◽  
William Tong ◽  
Chris Castel ◽  
Chukuka Samuel Enwemeka
Keyword(s):  
Fluorescence Spectroscopy ◽  
Blue Light ◽  
Propionibacterium Acnes ◽  
Bactericidal Effect ◽  
Spectroscopy Study

scholarly journals Blue light for infectious diseases: Propionibacterium acnes, Helicobacter pylori, and beyond?

2012 ◽  
Vol 15 (4) ◽  
pp. 223-236 ◽  
Author(s):  
Tianhong Dai ◽  
Asheesh Gupta ◽  
Clinton K. Murray ◽  
Mark S. Vrahas ◽  
George P. Tegos ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Infectious Diseases ◽  
Blue Light ◽  
Propionibacterium Acnes

scholarly journals Antibacterial activity of Cathormion umbellatum

2021 ◽  
Vol 16 (3) ◽  
pp. 91-95
Author(s):  
Surachai Rattanasuk ◽  
Rujirek Boongapim ◽  
Tannatorn Phiwthong
Keyword(s):  
Antibacterial Activity ◽  
Inhibitory Concentration ◽  
Minimum Bactericidal Concentration ◽  
Antibacterial Effect ◽  
Colorimetric Assay ◽  
Inhibition Zone ◽  
Resistant Bacteria ◽  
Antibiotic Resistant Bacteria ◽  
Antibiotic Resistant ◽  
Diffusion Assay

The aim of this study was to determine the antibacterial activity of Cathormion umbellatum extracts against seven antibiotic-resistant bacteria. The pods, leaves and branches of C. umbellatum were extracted with ethanol and methanol. The disc diffusion assay was used to screen the antibacterial activity and broth microdilution and colorimetric assay were used to measure the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values. The result indicated that the highest inhibition zone (11 mm) was presented in ethanolic pods extract against multidrug resistance Klebsiella pneumoniae. The lowest MIC value of 0.05 mg/mL was obtained from branch extracted with ethanol against colistin resistant Pseudomonas aeruginosa. The lowest MBC values of 1.56 mg/mL were obtained when using C. umbellatum leaves extracted with methanol against all test antibiotic-resistant bacteria. This is the first report presented C. umbellatum extracts have the potential to eliminate antibiotic-resistant bacteria in patients. These findings show the antibacterial effect of C. umbellatum.

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