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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Faille, C. Sylla, Y. Le Gentil, C. Bénézech, T. Slomianny, C. Lequette, Y. |
| Description | Country affiliation: France Author Affiliation: Faille C ( INRA, UR638, 369 rue Jules Guesde, BP 20039, F-59651 Villeneuve d'Ascq Cedex, France. faille@lille.inra.fr) |
| Abstract | This study was designed to evaluate how conditions encountered by spores during cleaning-in-place (CIP) procedures affected their surface properties, their viability and ability to contaminate materials. Spores from five Bacillus cereus strains were treated with NaOH at high temperature. Results revealed that high temperatures (exceeding 60 degrees C) and NaOH concentrations (over 0.5%) were required to significantly decrease spore viability (3-5log decrease). In these conditions, modifications were also clearly observed by microscopy to various surface structures of spores (appendages, exosporium, and especially to the hair-like nap) but also to their coat. Therefore, the ability of culturable spores to adhere decreased for the majority of strains tested. We then demonstrated that spores in suspension in NaOH could adhere to surfaces of a CIP rig and that the contamination level was controlled by flow pattern. Consequently, re-adhesion along the processing line might occur during CIP procedures and this phenomenon must be taken into account when defining cleaning strategies. |
| File Format | HTM / HTML |
| ISSN | 07400020 |
| Issue Number | 6 |
| Volume Number | 27 |
| e-ISSN | 10959998 |
| Journal | Food Microbiology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2010-09-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Discipline Nutritional Sciences Bacillus Cereus Physiology Equipment Contamination Hot Temperature Sanitation Methods Sodium Hydroxide Pharmacology Bacterial Adhesion Consumer Product Safety Food Microbiology Food-processing Industry Standards Microbial Viability Spores, Bacterial Growth & Development Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Microbiology Food Science |
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