Document Detail


Inactivation of Salmonella enterica Ser. Enteritidis in tomato juice by combining of high-intensity pulsed electric fields with natural antimicrobials.
MedLine Citation:
PMID:  18298735     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of high-intensity pulsed electric field (HIPEF) treatment (35kV/cm, 4 mus pulse length in bipolar mode without exceeding 38 degrees C) as influenced by treatment time (200, 600, and 1000 micros) and pulse frequency (100, 150, and 200 Hz) for inactivating Salmonella enterica ser. Enteritidis inoculated in tomato juice was evaluated. Similarly, the effect of combining HIPEF treatment with citric acid (0.5%, 1.0%, 1.5%, and 2.0%[wt/vol]) or cinnamon bark oil (0.05%, 0.10%, 0.2%, and 0.3%[vol/vol]) as natural antimicrobials against S. Enteritidis in tomato juice was also studied. Higher treatment time and lower pulse frequency produced the greater microbial inactivation. Maximum inactivation of S. Enteritidis (4.184 log(10) units) in tomato juice by HIPEF was achieved when 1000 micros and 100 Hz of treatment time and pulse frequency, respectively, were applied. However, a greater microbial inactivation was found when S. Enteritidis was previously exposed to citric acid or cinnamon bark oil for 1 h in tomato juice. Synergistic effects were observed in HIPEF and natural antimicrobials. Nevertheless, combinations of HIPEF treatment with 2.0% of citric acid or 0.1% of cinnamon bark oil were needed for inactivating S. Enteritidis by more than 5.0 log(10) units (5.08 and 6.04 log(10) reductions, respectively). Therefore, combinations of HIPEF with organic acids or essential oils seem to be a promising method to achieve the pasteurization in these kinds of products.
Authors:
J Mosqueda-Melgar; R M Raybaudi-Massilia; O Martín-Belloso
Related Documents :
11580825 - The effect of ph on the erosion of dentine and enamel by dietary acids in vitro.
17117785 - Enhancement effect study of some organic acids on the calcium availability of vegetable...
7664885 - Abscisic acid induced protection against photoinhibition of psii correlates with enhanc...
23292325 - The sonodegradation of caffeic acid under ultrasound treatment: relation to stability.
12353705 - In vitro activity of phytosphingosines against malassezia furfur and candida albicans.
2650695 - Effect of n-3 fatty acid supplement to patients with atopic dermatitis.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of food science     Volume:  73     ISSN:  1750-3841     ISO Abbreviation:  J. Food Sci.     Publication Date:  2008 Mar 
Date Detail:
Created Date:  2008-02-26     Completed Date:  2008-03-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0014052     Medline TA:  J Food Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  M47-53     Citation Subset:  IM    
Affiliation:
Dept. of Food Technology, Univ. of Lleida, UTPV-CeRTA, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Anti-Bacterial Agents / pharmacology*
Beverages / microbiology*
Citric Acid / pharmacology
Colony Count, Microbial
Consumer Product Safety
Dose-Response Relationship, Drug
Drug Synergism
Electromagnetic Fields*
Food Contamination / analysis,  prevention & control
Food Microbiology*
Food Preservation / methods*
Humans
Lycopersicon esculentum / microbiology
Oils, Volatile / pharmacology
Salmonella enteritidis / growth & development*
Time Factors
Chemical
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Oils, Volatile; 0/cinnamon oil, bark; 77-92-9/Citric Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Antimicrobial activity of torilin isolated from Torilis japonica fruit against Bacillus subtilis.
Next Document:  Detection of sublethal thermal injury in Salmonella enterica serotype typhimurium and Listeria monoc...