Mechanism of berberine hydrochloride interfering with biofilm formation of Hafnia alvei

2022 ◽  
Vol 204 (2) ◽  
Author(s):  
Yuesheng Pang ◽  
Sha Wang ◽  
Jiayue Tao ◽  
Jing Wang ◽  
Zhe Xue ◽  
...  
Keyword(s):  
Biofilm Formation ◽  
Hafnia Alvei ◽  
Berberine Hydrochloride

scholarly journals AHLs Regulate Biofilm Formation and Swimming Motility of Hafnia alvei H4

2019 ◽  
Vol 10 ◽  
Author(s):  
Yao lei Zhu ◽  
Hong man Hou ◽  
Gong liang Zhang ◽  
Yi fang Wang ◽  
Hong shun Hao
Keyword(s):  
Biofilm Formation ◽  
Hafnia Alvei ◽  
Swimming Motility

scholarly journals Biofilm formation in Hafnia alvei HUMV-5920, a human isolate

2016 ◽  
Vol 2 (4) ◽  
pp. 412-421 ◽  
Author(s):  
Itziar Chapartegui-González ◽  
◽  
María Lázaro-Díez ◽  
Santiago Redondo-Salvo ◽  
Elena Amaro-Prellezo ◽  
...  
Keyword(s):  
Biofilm Formation ◽  
Human Isolate ◽  
Hafnia Alvei

Inhibitory effect of vanillin on the virulence factors and biofilm formation of Hafnia alvei

LWT ◽  
2019 ◽  
Vol 102 ◽  
pp. 223-229 ◽  
Author(s):  
Tingting Li ◽  
Binbin He ◽  
Yongchao Mei ◽  
Dangfeng Wang ◽  
Xiaojia Sun ◽  
...  
Keyword(s):  
Virulence Factors ◽  
Biofilm Formation ◽  
Inhibitory Effect ◽  
Hafnia Alvei

scholarly journals The effect of berberine hydrochloride on Enterococcus faecalis biofilm formation and dispersion in vitro

2016 ◽  
Vol 186-187 ◽  
pp. 44-51 ◽  
Author(s):  
Lihua Chen ◽  
Qianqian Bu ◽  
Huan Xu ◽  
Yuan Liu ◽  
Pengfei She ◽  
...  
Keyword(s):  
Enterococcus Faecalis ◽  
Biofilm Formation ◽  
Berberine Hydrochloride

Application of bacteriophages to reduce biofilms formed by hydrogen sulfide producing bacteria on surfaces in a rendering plant

2015 ◽  
Vol 61 (8) ◽  
pp. 539-544 ◽  
Author(s):  
Chao Gong ◽  
Xiuping Jiang
Keyword(s):  
Stainless Steel ◽  
Hydrogen Sulfide ◽  
Biofilm Formation ◽  
High Density Polyethylene ◽  
High Density ◽  
Citrobacter Freundii ◽  
Hafnia Alvei ◽  
Environmental Surface ◽  
By Products ◽  
Phage Treatment

Hydrogen sulfide producing bacteria (SPB) in raw animal by-products are likely to grow and form biofilms in the rendering processing environments, resulting in the release of harmful hydrogen sulfide (H2S) gas. The objective of this study was to reduce SPB biofilms formed on different surfaces typically found in rendering plants by applying a bacteriophage cocktail. Using a 96-well microplate method, we determined that 3 SPB strains of Citrobacter freundii and Hafnia alvei are strong biofilm formers. Application of 9 bacteriophages (107 PFU/mL) from families of Siphoviridae and Myoviridae resulted in a 33%–70% reduction of biofilm formation by each SPB strain. On stainless steel and plastic templates, phage treatment (108 PFU/mL) reduced the attached cells of a mixed SPB culture (no biofilm) by 2.3 and 2.7 log CFU/cm2 within 6 h at 30 °C, respectively, as compared with 2 and 1.5 log CFU/cm2 reductions of SPB biofilms within 6 h at 30 °C. Phage treatment was also applied to indigenous SPB biofilms formed on the environmental surface, stainless steel, high-density polyethylene plastic, and rubber templates in a rendering plant. With phage treatment (109 PFU/mL), SPB biofilms were reduced by 0.7–1.4, 0.3–0.6, and 0.2–0.6 log CFU/cm2 in spring, summer, and fall trials, respectively. Our study demonstrated that bacteriophages could effectively reduce the selected SPB strains either attached to or in formed biofilms on various surfaces and could to some extent reduce the indigenous SPB biofilms on the surfaces in the rendering environment.

Inhibition of berberine hydrochloride on Candida albicans biofilm formation

2020 ◽  
Vol 42 (11) ◽  
pp. 2263-2269 ◽  
Author(s):  
Xiaoxue Huang ◽  
Mingyue Zheng ◽  
Yuling Yi ◽  
Anamica Patel ◽  
Zhen Song ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Biofilm Formation ◽  
Berberine Hydrochloride

Inhibition of Hafnia alvei H4 Biofilm Formation by the Food Additive Dihydrocoumarin

2017 ◽  
Vol 80 (5) ◽  
pp. 842-847 ◽  
Author(s):  
Hong Man Hou ◽  
Feng Jiang ◽  
Gong Liang Zhang ◽  
Jia Y. Wang ◽  
Ya H. Zhu ◽  
...  
Keyword(s):  
Biofilm Formation ◽  
Inhibitory Effect ◽  
Intercellular Signaling ◽  
Food Spoilage ◽  
Antimicrobial Drugs ◽  
Associated Bacteria ◽  
Hafnia Alvei ◽  
Major Mechanism ◽  
Spoilage Bacterium ◽  
Biofilm Structure

ABSTRACT Quorum sensing (QS) is an intercellular signaling and gene regulatory mechanism that is implicated in food spoilage caused by bacteria. Thus, blocking QS may suppress QS-controlled phenotypes of these bacteria that are responsible for food spoilage. Biofilm formation is closely related to bacterial infection, and it is also a major mechanism responsible for the increased resistance of biofilm-associated bacteria to antimicrobial drugs. Food spoilage and biofilm formation caused by food-related bacteria have posed a significant problem for the food industry. Thus, adopting an antibiofilm approach would provide an alternative to an antibiotic strategy. Dihydrocoumarin is a compound that is derived from coumarin, a known natural QS inhibitor that has been used as an additive in food. Hafnia alvei is a spoilage bacterium; H. alvei H4 was isolated from ready-to-eat sea cucumber. Considering that QS and biofilm are often closely linked, this research aimed to detect the effect of dihydrocoumarin on the production of violacein by Chromobacterium violaceum 026 and to evaluate the inhibitory effect of dihydrocoumarin on the formation of biofilm by H. alvei H4 by using violacein and crystal violet assays. C. violaceum 026 treated with dihydrocoumarin showed as much as 70.1% reduction in QS-mediated production of violacein compared with untreated cells, while exhibiting no significant change in growth. H. alvei H4 treated with dihydrocoumarin displayed 75.8% reduction in swimming motility, and as much as 89.4% reduction in biofilm formation compared with the nontreated cells, with the reduction in both cases being dependent on the concentration of dihydrocoumarin. Scanning electron microscopy showed that dihydrocoumarin could effectively destroy the biofilm structure of H. alvei H4 and decrease biofilm density. These findings indicate that dihydrocoumarin can be developed into a new QS inhibitor or antibiofilm agent for controlling food spoilage and potentially investigated to increase food safety.

Influence of environmental conditions on biofilm formation by Hafnia alvei strains

2008 ◽  
Vol 129 (1-2) ◽  
pp. 150-155 ◽  
Author(s):  
J. Vivas ◽  
D. Padilla ◽  
F. Real ◽  
J. Bravo ◽  
V. Grasso ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Biofilm Formation ◽  
Hafnia Alvei
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