The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform

Totsaporn Intarabumrung - One of the best experts on this subject based on the ideXlab platform.

Sungyong Cho - One of the best experts on this subject based on the ideXlab platform.

  • Bactericidal effect of TiO2 photocatalyst on selected food-borne pathogenic bacteria
    Chemosphere, 2003
    Co-Authors: Byunghoon Kim, Dohwan Kim, Donglyun Cho, Sungyong Cho
    Abstract:

    Titanium dioxide (TiO2) photocatalysts have attracted great attention as a material for photocatalytic sterilization in the food and Environmental Industry. This research aimed to design a new photobioreactor and its application to sterilize selected food borne pathogenic bacteria, Salmonella choleraesuis subsp., Vibrio parahaemolyticus, and Listeria monocytogenes. The photocatalytic reaction was carried out with various TiO2 concentrations and Ultraviolet (UV) illumination time. A feasible synergistic effect was found that the bactericidal effect of TiO2 on all bacterial suspension after UV light irradiation was much higher than that of without TiO2. As the concentration of TiO2 increased to 1.0 mg/ ml, bactericidal effect increased. However, the bactericidal effect was rapidly abbreviated at TiO2 concentration higher than 1.25 mg/ml to all selected bacteria. UV illumination time affected drastically the viability of all bacteria with different death rate. Similar trends were obtained from S. choleraesuis subsp. and V. parahaemolyticus that their complete killing was achieved after 3 h of illumination. However, L. monocytogenes was more resistant and its death ratio was about 87% at that time. © 2003 Elsevier Science Ltd. All rights reserved.

M A Jiong - One of the best experts on this subject based on the ideXlab platform.

  • explore the problems and solution of development in Environmental Industry
    Ecological Economy, 2012
    Co-Authors: M A Jiong
    Abstract:

    With more and more serious Environmental problems attracting the public attention,Environmental Industry,which is an efficient approach to protect the environment,is becoming more and more important.Through analysis and discussion of developmental problems which most Environmental firms encounter,the solution that firms,institutes,credit system and government need to join together to solve these problems is shown.

Yasuyoshi Hayata - One of the best experts on this subject based on the ideXlab platform.

  • development of tio2 powder coated food packaging film and its ability to inactivate escherichia coli in vitro and in actual tests
    International Journal of Food Microbiology, 2008
    Co-Authors: Chamorn Chawengkijwanich, Yasuyoshi Hayata
    Abstract:

    Abstract Titanium dioxide (TiO2) has attracted a great deal of attention as a photocatalytic disinfecting material in the food and Environmental Industry. TiO2 has been used to inactivate a wide variety of microorganisms in many applications. In the present study, we aimed to develop a TiO2 powder-coated packaging film and clarify its ability to inactivate Escherichia coli both in vitro and in actual tests, using two different particle sizes and two types of illumination at different intensities. No inhibition effect of the testing method itself on the growth of E. coli was observed. The cells of E. coli were found to have decreased 3 log CFU/ml after 180 min of illumination by two 20 W black-light bulbs (wavelength of 300–400 nm) on TiO2-coated oriented-polypropylene (OPP) film, while E. coli decreased 1 log CFU/m with black-light illumination of uncoated OPP film. The results showed that both ultraviolet A (UVA; wavelength of 315–400 nm) alone and TiO2-coated OPP film combined with UVA reduced the number of E. coli cell in vitro, but that the reduction of E. coli cell numbers was greater by TiO2-coated OPP film combined with UVA. The antimicrobial effect of TiO2-coated film is dependent on the UVA light intensity (0,

Byunghoon Kim - One of the best experts on this subject based on the ideXlab platform.

  • Bactericidal effect of TiO2 photocatalyst on selected food-borne pathogenic bacteria
    Chemosphere, 2003
    Co-Authors: Byunghoon Kim, Dohwan Kim, Donglyun Cho, Sungyong Cho
    Abstract:

    Titanium dioxide (TiO2) photocatalysts have attracted great attention as a material for photocatalytic sterilization in the food and Environmental Industry. This research aimed to design a new photobioreactor and its application to sterilize selected food borne pathogenic bacteria, Salmonella choleraesuis subsp., Vibrio parahaemolyticus, and Listeria monocytogenes. The photocatalytic reaction was carried out with various TiO2 concentrations and Ultraviolet (UV) illumination time. A feasible synergistic effect was found that the bactericidal effect of TiO2 on all bacterial suspension after UV light irradiation was much higher than that of without TiO2. As the concentration of TiO2 increased to 1.0 mg/ ml, bactericidal effect increased. However, the bactericidal effect was rapidly abbreviated at TiO2 concentration higher than 1.25 mg/ml to all selected bacteria. UV illumination time affected drastically the viability of all bacteria with different death rate. Similar trends were obtained from S. choleraesuis subsp. and V. parahaemolyticus that their complete killing was achieved after 3 h of illumination. However, L. monocytogenes was more resistant and its death ratio was about 87% at that time. © 2003 Elsevier Science Ltd. All rights reserved.