Efficacy of supercritical carbon dioxide for nonthermal inactivation of Escherichia coli K12 in apple cider

2010 ◽  
Vol 138 (1-2) ◽  
pp. 91-99 ◽  
Author(s):  
Hyun-Gyun Yuk ◽  
David J. Geveke ◽  
Howard Q. Zhang
Keyword(s):  
Escherichia Coli ◽  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Apple Cider ◽  
Escherichia Coli K12 ◽  
Supercritical Carbon

scholarly journals Effect of pressure, depressurization rate and pressure cycling on the inactivation of Escherichia coli by supercritical carbon dioxide

Food Control ◽  
2013 ◽  
Vol 29 (1) ◽  
pp. 76-81 ◽  
Author(s):  
Juliana Melo Silva ◽  
Aline A. Rigo ◽  
Irede A. Dalmolin ◽  
Isabel Debien ◽  
Rogério L. Cansian ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Effect Of Pressure ◽  
Pressure Cycling ◽  
Supercritical Carbon

scholarly journals Cellulose Acetate Membranes Modification by Aminosilane Grafting in Supercritical Carbon Dioxide towards Antibiofilm Properties

Membranes ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 33
Author(s):  
Marcin Tyrka ◽  
Mariusz Nowak ◽  
Dusan Misic ◽  
Tomasz Półbrat ◽  
Stanisław Koter ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Carbon Dioxide ◽  
Staphylococcus Aureus ◽  
Supercritical Carbon Dioxide ◽  
Cellulose Acetate ◽  
Salmonella Enteritidis ◽  
Reaction Medium ◽  
Grafting Reaction ◽  
Cellulose Acetate Membranes ◽  
Supercritical Carbon

The study explores the grafting of cellulose acetate microfiltration membranes with an aminosilane to attain antibiofilm properties. The grafting reaction was performed in the supercritical carbon dioxide used as a transport and reaction medium. The FTIR analyses and dissolution tests confirmed the covalent bonding between the aminosilane and polymer. The membranes’ microstructure was investigated using a dual-beam SEM and ion microscopy, and no adverse effects of the processing were found. The modified membranes showed a more hydrophilic nature and larger water permeate flow rate than the neat cellulose acetate membranes. The tests in a cross-filtration unit showed that modified membranes were considerably less blocked after a week of exposure to Staphylococcus aureus and Escherichia coli than the original ones. Microbiological investigations revealed strong antibiofilm properties of the grafted membranes in experiments with Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, and Salmonella Enteritidis.

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