Results 21 to 30 of about 291,456 (166)

Study on Antibacterial Activity and Mechanism of Action of a Postbiotic Prepared by Co-fermenting Three Lactic Acid Bacteria against Methicillin-resistant Staphylococcus aureus

open access: yesShipin gongye ke-ji, 2023
To prepare a postbiotic with good antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA), and to study its antibacterial effect and action mode, a postbiotic named YDFF was prepared by co-fermenting Lactococcus lactis subsp ...
Dongxue LAN   +7 more
doaj   +1 more source

Antibacterial Activity of Chitooligosaccharides

open access: yesZeitschrift für Naturforschung C, 2008
The aim of this study was to investigate the antibacterial activity of chitooligosaccharide, prepared by partial acid hydrolysis of chitosan, and of an aminoglycosylated derivative, prepared by reductive alkylation of the chitooligosaccharide, against E. coli and S. aureus.
Luis, Lillo   +4 more
openaire   +2 more sources

THE ANTIBACTERIAL ACTIVITY OF HEMOGLOBIN [PDF]

open access: yesThe Journal of Experimental Medicine, 1958
Low concentrations of hemoglobin (0.1 µg./ml. or less) exert a lethal action on some Gram-negative bacteria under certain conditions in vitro. Hemoglobins from various mammals and the distinct genetic types of human hemoglobin all manifest similar bactericidal activity.
D, HODSON, J G, HIRSCH
openaire   +2 more sources

Antibacterial activity of antileukoprotease [PDF]

open access: yesInfection and Immunity, 1996
Antileukoprotease (ALP), or secretory leukocyte proteinase inhibitor, is an endogenous inhibitor of serine proteinases that is present in various external secretions. ALP, one of the major inhibitors of serine proteinases present in the human lung, is a potent reversible inhibitor of elastase and, to a lesser extent, of cathepsin G.
P S, Hiemstra   +5 more
openaire   +2 more sources

Exchangeable ions are responsible for the in vitro antibacterial properties of natural clay mixtures. [PDF]

open access: yesPLoS ONE, 2013
We have identified a natural clay mixture that exhibits in vitro antibacterial activity against a broad spectrum of bacterial pathogens. We collected four samples from the same source and demonstrated through antibacterial susceptibility testing that ...
Caitlin C Otto, Shelley E Haydel
doaj   +1 more source

Antibacterial activity of norfloxacin

open access: yesAntimicrobial Agents and Chemotherapy, 1983
Norfloxacin, a new quinoline derivative, was studied in vitro, and determinations of agar dilution minimal inhibitory concentrations (MICs) and broth dilution MICs and MBCs were made. Nalidixic acid and cinoxacin were used as comparative agents. Norfloxacin was found to be extremely active against all strains tested of Escherichia coli, Klebsiella spp.,
S R, Norrby, M, Jonsson
openaire   +3 more sources

Antibacterial Activities of Seaweed (Eucheuma cottonii ) Extract Against Escherichia coli Bacteria

open access: yesBerkala Sainstek, 2021
Indonesia is a maritime country that has more than 70% of its territory dominated by oceans and is a marine area that has abundant natural resources, one of which is Eucheuma cottonii. The content of compounds by E.
Sukmawati Sukmawati
doaj   +1 more source

Antibacterial Activity and Stability of Polysaccharides from Meitan White Tea on Staphylococcus aureus

open access: yesShipin gongye ke-ji, 2022
Objective: To study the antibacterial activity and stability of polysaccharides from Meitan White Tea against standard strains of Staphylococcus aureus in vitro.
Shanshan SONG   +4 more
doaj   +1 more source

The antibacterial activities of honey

open access: yesSaudi Journal of Biological Sciences, 2021
Honey is a powerful antimicrobial agent with a wide range of effects. Various components contribute to the antibacterial efficacy of honey: the sugar content; polyphenol compounds; hydrogen peroxide; 1,2-dicarbonyl compounds; and bee defensin-1. All of these elements are present at different concentrations depending on the source of nectar, bee type ...
openaire   +2 more sources

Antibacterial Activity of Coumarins

open access: yesZeitschrift für Naturforschung C, 2005
Abstract The antibacterial activity of coumarin per se and other 45 coumarin derivatives was tested against strains of Bacillus cereus MIP 96016, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, and Staphylococcus aureus ATCC 25923.
Souza, Simone M. de   +2 more
openaire   +2 more sources

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