Homogeneously and heterogeneously structured biofilm models for wastewater treatment

Yang, Yaru; Wang, Xiaodong; Chang, Jo‐Shu; Lee, Dong Hoon

doi:10.1016/j.biortech.2022.127763

Cited by 5 publications

(1 citation statement)

References 116 publications

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“…A biofilm is a complex biological community composed of single or distinct microorganisms [5] that adsorb onto the surface of host cavities or inert or active materials, and secrete an extracellular matrix. Microbial cells are wrapped in the biofilm [6,7] to enhance their capacity to adapt to the environment [8]. The complex process of biofilm formation is controlled by the quorum sensing (QS) intercellular communication system [9,10], which comprises complex signaling networks involving multiple secondary messengers [11], such as cyclic (c)-di-GMP and cAMP [12].…”

Section: Introductionmentioning

confidence: 99%

Elimination of Pathogen Biofilms via Postbiotics from Lactic Acid Bacteria: A Promising Method in Food and Biomedicine

Che,

Shi,

Fang

et al. 2024

Microorganisms

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Pathogenic biofilms provide a naturally favorable barrier for microbial growth and are closely related to the virulence of pathogens. Postbiotics from lactic acid bacteria (LAB) are secondary metabolites and cellular components obtained by inactivation of fermentation broth; they have a certain inhibitory effect on all stages of pathogen biofilms. Postbiotics from LAB have drawn attention because of their high stability, safety dose parameters, and long storage period, which give them a broad application prospect in the fields of food and medicine. The mechanisms of eliminating pathogen biofilms via postbiotics from LAB mainly affect the surface adhesion, self-aggregation, virulence, and QS of pathogens influencing interspecific and intraspecific communication. However, there are some factors (preparation process and lack of target) which can limit the antibiofilm impact of postbiotics. Therefore, by using a delivery carrier and optimizing process parameters, the effect of interfering factors can be eliminated. This review summarizes the concept and characteristics of postbiotics from LAB, focusing on their preparation technology and antibiofilm effect, and the applications and limitations of postbiotics in food processing and clinical treatment are also discussed.

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