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Detersive Formulations for Cleaning and Disinfection in the Food Industry

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Environmental Sciences".

Deadline for manuscript submissions: closed (30 November 2019) | Viewed by 3457

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Department of Chemical Engineering, Faculty of Sciences, University of Granada, Avda. Fuentenueva s/n, 18071 Granada, Spain
Interests: chemical engineering; cleaning; enzymes; surfactant; essential oils
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Special Issue Information

Dear Colleagues,

Food industries require regular cleaning and disinfection operations to reach a high quality of food conforming to legal dispositions. The washing process has to remove amylaceous, lipid, and protein-based dirt mainly, although these are usually mixed, creating mixed dirt. The existence of microorganisms can also generate the formation of biofilms that are difficult to remove.

To achieve the required degree of cleaning and disinfection, washing protocols are established and detergent formulations are adapted to the characteristics of the dirt and the nature of the surfaces of the equipment and industrial facilities, usually made of stainless steel. These protocols and formulations can incorporate surfactants (anionic, nonionic, cationic, etc.), enzymes (amylases, lipases, proteases, etc.), nanoparticles, ozone, disinfectants, and other chemical compounds that allow effective cleaning for the different types of dirt that can be found in these industries. These processes are usually normalized, but they must be optimized to reduce the consumption of chemical reagents, the cost of the process, and the environmental impact.

In order to evaluate the cleaning capacity shown by the different protocols and detersive formulations, laboratory or pilot-level tests are usually used to select the optimal cleaning conditions.

Prof. Encarnación Jurado Alameda
Dr. José M. Vicaria Rivillas
Guest Editors

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Keywords

  • cleaning food industries
  • detergent
  • surfactants
  • biofilm
  • disinfection
  • enzymes
  • nanoparticles
  • ozone

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Published Papers (1 paper)

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Research

12 pages, 6263 KiB  
Article
Assessment of Performance of Two Rapid Methods for On-Site Control of Microbial and Biofilm Contamination
by Fernando Lorenzo, Maria Sanz-Puig, Ramón Bertó and Enrique Orihuel
Appl. Sci. 2020, 10(3), 744; https://doi.org/10.3390/app10030744 - 21 Jan 2020
Cited by 5 | Viewed by 3020
Abstract
(1) Background: The validation of hygiene procedures in food industries is paramount to ensure that food contact surfaces are properly decontaminated before production. Rapid, sensitive and reliable tools are needed for routine hygiene validation in order to increase food safety levels. Two novel [...] Read more.
(1) Background: The validation of hygiene procedures in food industries is paramount to ensure that food contact surfaces are properly decontaminated before production. Rapid, sensitive and reliable tools are needed for routine hygiene validation in order to increase food safety levels. Two novel tools for biofilm detection (TBF 300) and detection of low levels of microbial contamination (FreshCheck) have been assessed. (2) Methods: Biofilms of relevant food pathogens: Listeria monocytogenes and Salmonella spp. were grown for 3 and 10 days to assess the performance of the biofilm detection product. Surfaces were inoculated with different levels of L. monocytogenes to determine the limit of detection of FreshCheck. (3) Results: TBF 300 visibly stained 3 days-old biofilms of both pathogens, containing 5.0–5.4 log CFU/cm2. FreshCheck showed a positive reaction with contamination levels as low as 10 CFU/cm2 for L. monocytogenes. (4) Conclusions: Assessment of the hygienic status of food contact surfaces before production can be greatly improved with the use of the two novel tools evaluated in this study. The detection of microorganisms’ presence at very low levels of contamination as well as identification of biofilm growth spots is available in a rapid and easy way, with a big potential contribution to food safety. Full article
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