Inactivation of E. coli and L. innocua in milk by a thin film UV-C reactor modified with flow guiding elements (FGE)

Barut Gök, Sila;
Affiliation
Max Rubner-Institut (MRI), Department of Food Technology and Bioprocess Engineering, Germany
Vetter, Eva;
GND
1158531370
Affiliation
Max Rubner-Institut (MRI), Department of Food Technology and Bioprocess Engineering, Germany
Kromm, Lisa; Hansjosten, Edgar; Hensel, Andreas;
GND
1036552055
Affiliation
Max Rubner-Institut (MRI), Department of Food Technology and Bioprocess Engineering, Germany
Gräf, Volker;
GND
122616286
Affiliation
Max Rubner-Institut (MRI), Department of Food Technology and Bioprocess Engineering, Germany
Stahl, Mario

In this study the suitability of a thin-film reactor (TFR) equipped with special flow guiding elements (FGE) was examined to analyse its capability to inactivate microorganisms in milk. Experiments were carried out with UHT-milk inoculated with Escherichia coli (E. coli), DH5α and Listeria innocua (L. innocua) WS 2258. Furthermore, the inactivation of microorganisms originally occurring in raw milk was investigated. E. coli, DH5α and L. innocua serving as biodosimeter were reduced by 4.58-log and 3.19-log, respectively. In milk, the original microorganisms showed a 4-log reduction. Without FGE the reduction was below 0.13-log. Thus, it can be derived that the efficacy of a UV-C thin-film reactor processing absorptive media like milk can be highly improved using FGE.

Files

Cite

Citation style:
Could not load citation form.

Access Statistic

Total:
Downloads:
Abtractviews:
Last 12 Month:
Downloads:
Abtractviews:

Rights

Use and reproduction:
All rights reserved

Export