Synergistic effects of combined ultrasound and peroxyacetic acid treatments against Cronobacter sakazakii biofilms on fresh cucumber
| Autor: | Mizan Md Furkanur Rahaman, Hyeon-Jo Bang, Shin Young Park, Seh Eun Kim, Sang-Do Ha |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
biology Chemistry 030106 microbiology Biofilm 04 agricultural and veterinary sciences biochemical phenomena metabolism and nutrition biology.organism_classification 040401 food science Cronobacter sakazakii Microbiology 03 medical and health sciences 0404 agricultural biotechnology Combined treatment Chewiness Food science Food Science |
| Zdroj: | LWT. 84:91-98 |
| ISSN: | 0023-6438 |
| DOI: | 10.1016/j.lwt.2017.05.037 |
| Popis: | This study investigated the synergistic effects of combined ultrasound (US; 37 kHz, 380 W for 10–60 min) and peroxyacetic acid (PAA; 50–200 ppm) on reducing Cronobacter sakazakii biofilms on cucumbers. US was not sufficient to eliminate C. sakazakii biofilms (0.04–0.60 log-reduction), whereas PAA (200 ppm) significantly ( p C. sakazakii biofilms (3.51 log-reduction = 1.88 + 1.63 log). Synergistic reduction of C. sakazakii biofilms was observed in most combined treatment, although the most synergistic reduction values were 10 CFU/cm 2 . The highest synergistic value of reduction in cucumber was 1.03–1.08 log 10 CFU/cm 2 when treated with a combination of 60 min US and 150–200 ppm PAA. In addition, the Hunter color(“L”, “a”, and “b”), moisture contents(%), and texture(hardness and chewiness) after combined treatment with 60 min US and 200 ppm PAA did not differ significantly from those of cucumbers exposed to a single treatment. These results indicate that combined treatment with 60 min US and 150–200 ppm PAA could be a useful approach to reduce C. sakazakii biofilms on fresh-produce and could help enhance their shelf-life during transportation and storage. |
| Databáze: | OpenAIRE |
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