Physico‑chemical approach to adhesion of Alicyclobacillus cells and spores to model solid materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F19%3A43916641" target="_blank" >RIV/60461373:22330/19:43916641 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s00792-019-01075-x" target="_blank" >https://link.springer.com/article/10.1007/s00792-019-01075-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00792-019-01075-x" target="_blank" >10.1007/s00792-019-01075-x</a>

Result language

angličtina

Original language name

Physico‑chemical approach to adhesion of Alicyclobacillus cells and spores to model solid materials

Original language description

Acidothermophilic bacteria of the genus Alicyclobacillus are frequent contaminants of fruit-based products. This study is the first attempt to characterize the physico-chemical surface properties of two Alicyclobacillus sp. and quantify their adhesion disposition to model materials [diethylaminoethyl (DEAE), carboxyl- and octyl-modified magnetic beads] representing materials with different surface properties used in the food industry. An insight into the mechanism of adhesion was gained through comparison of experimental adhesion intensities with predictions of a colloidal interaction model (XDLVO). Experimental data (contact angles, zeta potentials, size) on interacting surfaces (cells and materials) were used as inputs into the XDLVO model. The results revealed that the most significant adhesion occurred at pH 3. Adhesion of both vegetative cells and spores of two Alicyclobacillus sp. to all materials studied was the most pronounced under acidic conditions, and adhesion was influenced mostly by electrostatic attractions. The most intensive adhesion of vegetative cells and spores at pH 3 was observed for DEAE followed by hydrophobic octyl and hydrophilic carboxyl surfaces. Overall, the lowest rate of adhesion between cells and model materials was observed at an alkaline pH. Consequently, prevention of adhesion should be based on the use of alkaline sanitizers and/or alkaline rinse water.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

21101 - Food and beverages

Project

<a href="/en/project/GA18-05007S" target="_blank" >GA18-05007S: Influence of algal organic matter on properties of flocs formed during coagulation/flocculation in water treatment</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Extremophiles

ISSN

1431-0651

e-ISSN

—

Volume of the periodical

23

Issue of the periodical within the volume

2

Country of publishing house

JP - JAPAN

Number of pages

9

Pages from-to

219-227

UT code for WoS article

000458509900004

EID of the result in the Scopus database

2-s2.0-85060213425