| Decontamination of Escherichia coli O157:H7 and Salmonella enterica on blueberries using ozone and pulsed UV-light. | |
MedLine Citation:
|
PMID: 18034733 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Efficacy of gaseous ozone, aqueous ozone, and pulsed UV-light was evaluated for the purpose of decontaminating blueberries artificially contaminated with either Escherichia coli O157:H7 or Salmonella. Blueberries were exposed to 4 different gaseous ozone treatments: continuous ozone exposure, pressurized ozone exposure, and 2 combined treatments. Maximum reductions of Salmonella and E. coli O157:H7 after 64-min pressurized or 64-min continuous exposure were 3.0 and 2.2 log(10) CFU/g, respectively. Aqueous ozone experiments were conducted at 20 degrees C and 4 degrees C and zero plate counts were observed for E. coli O157:H7 and Salmonella after 64 min of ozone exposure at 20 degrees C. Finally, pulsed UV-light was evaluated at 3 different distances from the light. Maximum reductions of 4.3 and 2.9 log(10) CFU/g were observed at 8 cm from the light after 60 s of treatment for Salmonella and E. coli O157:H7, respectively. A sensory analysis as well as color analysis was performed on blueberries from each treatment agent; neither analysis detected a difference between treated and untreated blueberries. The results presented in this study indicate that ozone and pulsed UV-light are good candidates for decontamination of blueberries. |
Authors:
|
K L Bialka; A Demirci |
Related Documents
:
|
20063823 - Photodermatitis and photokeratoconjunctivitis in a ball python (python regius) and a bl... 7476563 - Apollo meed mycology revisited and reviewed, including the trichophyton terrestre kerat... 20556033 - Acoustooptic system for fast measurement of coherent light intensity distribution. |
Publication Detail:
|
Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
|
Title: Journal of food science Volume: 72 ISSN: 1750-3841 ISO Abbreviation: J. Food Sci. Publication Date: 2007 Nov |
Date Detail:
|
Created Date: 2007-11-23 Completed Date: 2008-03-24 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0014052 Medline TA: J Food Sci Country: United States |
Other Details:
|
Languages: eng Pagination: M391-6 Citation Subset: IM |
Affiliation:
|
Dept. of Agricultural and Biological Engineering, and The Huck Inst. of Life Sciences, The Pennsylvania State Univ., Univ. Park, PA 16802, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Analysis of Variance Blueberry Plant / drug effects, microbiology*, radiation effects Colony Count, Microbial Color Consumer Satisfaction Escherichia coli O157 / drug effects, growth & development*, radiation effects Food Contamination / prevention & control* Food Handling / methods Food Irradiation / methods Food Microbiology * Humans Oxidants, Photochemical / pharmacology Ozone / pharmacology* Salmonella enterica / drug effects, growth & development*, radiation effects Sensation / drug effects, physiology Treatment Outcome Ultraviolet Rays * |
| Chemical | |
Reg. No./Substance:
|
0/Oxidants, Photochemical; 10028-15-6/Ozone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Acceleration of Thai fish sauce fermentation using proteinases and bacterial starter cultures.
Next Document: Antimicrobial effect of electrolyzed oxidizing water against Escherichia coli O157:H7 and Listeria m...