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Inactivation of Salmonella enterica Ser. Enteritidis in tomato juice by combining of high-intensity pulsed electric fields with natural antimicrobials.
J Food Sci. 2008 Mar; 73(2):M47-53.JF

Abstract

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.

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Authors+Show Affiliations

Mosqueda-Melgar J
Dept. of Food Technology, Univ. of Lleida, UTPV-CeRTA, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain.
Raybaudi-Massilia RM
No affiliation info available
Martín-Belloso O
No affiliation info available

MeSH

Anti-Bacterial AgentsBeveragesCitric AcidColony Count, MicrobialConsumer Product SafetyDose-Response Relationship, DrugDrug SynergismElectromagnetic FieldsFood ContaminationFood MicrobiologyFood PreservationHumansSolanum lycopersicumOils, VolatileSalmonella enteritidisTime Factors

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18298735

Citation

Mosqueda-Melgar, J, et al. "Inactivation of Salmonella Enterica Ser. Enteritidis in Tomato Juice By Combining of High-intensity Pulsed Electric Fields With Natural Antimicrobials." Journal of Food Science, vol. 73, no. 2, 2008, pp. M47-53.
Mosqueda-Melgar J, Raybaudi-Massilia RM, Martín-Belloso O. Inactivation of Salmonella enterica Ser. Enteritidis in tomato juice by combining of high-intensity pulsed electric fields with natural antimicrobials. J Food Sci. 2008;73(2):M47-53.
Mosqueda-Melgar, J., Raybaudi-Massilia, R. M., & Martín-Belloso, O. (2008). Inactivation of Salmonella enterica Ser. Enteritidis in tomato juice by combining of high-intensity pulsed electric fields with natural antimicrobials. Journal of Food Science, 73(2), M47-53. https://doi.org/10.1111/j.1750-3841.2007.00646.x
Mosqueda-Melgar J, Raybaudi-Massilia RM, Martín-Belloso O. Inactivation of Salmonella Enterica Ser. Enteritidis in Tomato Juice By Combining of High-intensity Pulsed Electric Fields With Natural Antimicrobials. J Food Sci. 2008;73(2):M47-53. PubMed PMID: 18298735.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Inactivation of Salmonella enterica Ser. Enteritidis in tomato juice by combining of high-intensity pulsed electric fields with natural antimicrobials. AU - Mosqueda-Melgar,J, AU - Raybaudi-Massilia,R M, AU - Martín-Belloso,O, PY - 2008/2/27/pubmed PY - 2008/3/29/medline PY - 2008/2/27/entrez SP - M47 EP - 53 JF - Journal of food science JO - J Food Sci VL - 73 IS - 2 N2 - 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. SN - 1750-3841 UR - https://www.unboundmedicine.com/medline/citation/18298735/Inactivation_of_Salmonella_enterica_Ser__Enteritidis_in_tomato_juice_by_combining_of_high_intensity_pulsed_electric_fields_with_natural_antimicrobials_ DB - PRIME DP - Unbound Medicine ER -
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