American Journal of Applied Chemistry

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Perimetric Distributed UV Reactor and Its Validation and the Decontamination of Fresh Broccolis

Received: 16 October 2019    Accepted: 25 November 2019    Published: 02 December 2019
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Abstract

The ultraviolet (UV) irradiation as a non-thermal processing technique for microbial decontamination of food (MDF) has been the gainer in many variations after the inclusion of UV light as an alternative for MDF by the US FDA. However the lasts years increase the application of the UV light in food, water and pharmaceutical utilization. In this report, we describe a new type of reactor, where the UV emitters are parametrically distributed for decontaminating fresh broccolis. We described the constructed reactor and its characterization with the validation of the system with controlled contaminated broccolis. The overall liquid was contamined with 105 UFC/mL E. coli operating with a flow rate of 80 L/min in 30 L and six lamps in the reactor and the collection of samples in intervals of 25 min. The E. coli used in this experiment was eliminated in 99,99% The intensity of UVC light distributed in the internal part of the reactor is practically homogeneous due to the developed geometry. The kinetics of microbial death presented no great influence on this variation. That is, any volume of water contained in the process can be decontaminated. A relation between UV and the flow rate was stablished. The system demonstrated its capacity in inactivating the microorganism.

DOI 10.11648/j.ajac.20190706.12
Published in American Journal of Applied Chemistry (Volume 7, Issue 6, December 2019)
Page(s) 161-167
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Reactor, Foods, Innovation, Decontamination

References
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[4] Bialka, K. L. & Demirci, A. Efficacy of pulsed UV–light for the decontamination of Escherichia coli O157: H7 and Salmonella spp. on raspberries and strawberries. J. Food Sci. 73, M201–M207 (2008).
[5] Gomez-Lopez, V. M., Ragaert, P., Debevere, J. & Devlieghere, F. Pulsed light for food decontamination: a review. Trends food Sci. Technol. 18, 464–473 (2007).
[6] Ye, Z., Koutchma, T., Parisi, B., Larkin, J. & Forney, L. J. Ultraviolet inactivation kinetics of Escherichia coli and Yersinia pseudotuberculosis in annular reactors. J. Food Sci. 72, E271–E278 (2007).
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[14] Oguma, K., Kita, R. & Takizawa, S. Effects of Arrangement of UV Light–Emitting Diodes on the Inactivation Efficiency of Microorganisms in Water. Photochem. Photobiol. (2016).
[15] Oguma, K., Rattanakul, S. & Bolton, J. R. Application of UV Light–Emitting Diodes to adenovirus in water. J. Environ. Eng. 142, 4015082 (2015).
[16] Matak, K. Effects of UV irradiation on the reduction of bacterial pathogens and chemical indicators of milk. (2004).
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Author Information
  • S?o Carlos Institute of Physics, University of S?o Paulo, S?o Carlos, Brazil

  • S?o Carlos Institute of Physics, University of S?o Paulo, S?o Carlos, Brazil

  • S?o Carlos Institute of Physics, University of S?o Paulo, S?o Carlos, Brazil

  • S?o Carlos Institute of Physics, University of S?o Paulo, S?o Carlos, Brazil

  • S?o Carlos Institute of Physics, University of S?o Paulo, S?o Carlos, Brazil

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  • APA Style

    Bruno Pereira de Oliveira, Shirly Lara Pérez, Daniel Chianfrone, Kate Cristina Blanco, Vanderlei Salvador Bagnato. (2019). Perimetric Distributed UV Reactor and Its Validation and the Decontamination of Fresh Broccolis. American Journal of Applied Chemistry, 7(6), 161-167. https://doi.org/10.11648/j.ajac.20190706.12

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    ACS Style

    Bruno Pereira de Oliveira; Shirly Lara Pérez; Daniel Chianfrone; Kate Cristina Blanco; Vanderlei Salvador Bagnato. Perimetric Distributed UV Reactor and Its Validation and the Decontamination of Fresh Broccolis. Am. J. Appl. Chem. 2019, 7(6), 161-167. doi: 10.11648/j.ajac.20190706.12

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    AMA Style

    Bruno Pereira de Oliveira, Shirly Lara Pérez, Daniel Chianfrone, Kate Cristina Blanco, Vanderlei Salvador Bagnato. Perimetric Distributed UV Reactor and Its Validation and the Decontamination of Fresh Broccolis. Am J Appl Chem. 2019;7(6):161-167. doi: 10.11648/j.ajac.20190706.12

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  • @article{10.11648/j.ajac.20190706.12,
      author = {Bruno Pereira de Oliveira and Shirly Lara Pérez and Daniel Chianfrone and Kate Cristina Blanco and Vanderlei Salvador Bagnato},
      title = {Perimetric Distributed UV Reactor and Its Validation and the Decontamination of Fresh Broccolis},
      journal = {American Journal of Applied Chemistry},
      volume = {7},
      number = {6},
      pages = {161-167},
      doi = {10.11648/j.ajac.20190706.12},
      url = {https://doi.org/10.11648/j.ajac.20190706.12},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajac.20190706.12},
      abstract = {The ultraviolet (UV) irradiation as a non-thermal processing technique for microbial decontamination of food (MDF) has been the gainer in many variations after the inclusion of UV light as an alternative for MDF by the US FDA. However the lasts years increase the application of the UV light in food, water and pharmaceutical utilization. In this report, we describe a new type of reactor, where the UV emitters are parametrically distributed for decontaminating fresh broccolis. We described the constructed reactor and its characterization with the validation of the system with controlled contaminated broccolis. The overall liquid was contamined with 105 UFC/mL E. coli operating with a flow rate of 80 L/min in 30 L and six lamps in the reactor and the collection of samples in intervals of 25 min. The E. coli used in this experiment was eliminated in 99,99% The intensity of UVC light distributed in the internal part of the reactor is practically homogeneous due to the developed geometry. The kinetics of microbial death presented no great influence on this variation. That is, any volume of water contained in the process can be decontaminated. A relation between UV and the flow rate was stablished. The system demonstrated its capacity in inactivating the microorganism.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - Perimetric Distributed UV Reactor and Its Validation and the Decontamination of Fresh Broccolis
    AU  - Bruno Pereira de Oliveira
    AU  - Shirly Lara Pérez
    AU  - Daniel Chianfrone
    AU  - Kate Cristina Blanco
    AU  - Vanderlei Salvador Bagnato
    Y1  - 2019/12/02
    PY  - 2019
    N1  - https://doi.org/10.11648/j.ajac.20190706.12
    DO  - 10.11648/j.ajac.20190706.12
    T2  - American Journal of Applied Chemistry
    JF  - American Journal of Applied Chemistry
    JO  - American Journal of Applied Chemistry
    SP  - 161
    EP  - 167
    PB  - Science Publishing Group
    SN  - 2330-8745
    UR  - https://doi.org/10.11648/j.ajac.20190706.12
    AB  - The ultraviolet (UV) irradiation as a non-thermal processing technique for microbial decontamination of food (MDF) has been the gainer in many variations after the inclusion of UV light as an alternative for MDF by the US FDA. However the lasts years increase the application of the UV light in food, water and pharmaceutical utilization. In this report, we describe a new type of reactor, where the UV emitters are parametrically distributed for decontaminating fresh broccolis. We described the constructed reactor and its characterization with the validation of the system with controlled contaminated broccolis. The overall liquid was contamined with 105 UFC/mL E. coli operating with a flow rate of 80 L/min in 30 L and six lamps in the reactor and the collection of samples in intervals of 25 min. The E. coli used in this experiment was eliminated in 99,99% The intensity of UVC light distributed in the internal part of the reactor is practically homogeneous due to the developed geometry. The kinetics of microbial death presented no great influence on this variation. That is, any volume of water contained in the process can be decontaminated. A relation between UV and the flow rate was stablished. The system demonstrated its capacity in inactivating the microorganism.
    VL  - 7
    IS  - 6
    ER  - 

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