Tags

Type your tag names separated by a space and hit enter

Control of Listeria monocytogenes on ham steaks by antimicrobials incorporated into chitosan-coated plastic films.
Food Microbiol. 2008 Apr; 25(2):260-8.FM

Abstract

Contamination of ready-to-eat (RTE) meat products such as ham steaks with Listeria monocytogenes has been a concern for the meat processing industry. The objective of this study was to evaluate the antilisterial efficacy of chitosan-coated plastic films alone or incorporating five generally recognized as safe (GRAS) antimicrobials. Effect of chitosan-coated plastic film on the growth of L. monocytogenes was first investigated in an aqueous system of culture medium broth and chitosan-coated films were able to inhibit the growth of L. monocytogenes in a concentration-dependent manner. However, chitosan-coated plastic films were not able to control the growth of L. monocytogenes on ham steaks. Therefore, five GRAS antimicrobials were subsequently incorporated into chitosan-coated plastic films to enhance their antilisterial effectiveness. Ham steaks were surface-inoculated with a five-strain cocktail of L. monocytogenes and then packaged in chitosan-coated plastic films containing 500 IU/cm(2) of nisin, 0.01 g/cm(2) of sodium lactate (SL), 0.0025 g/cm(2) of sodium diacetate, 0.003 g/cm(2) of potassium sorbate (PB), or 0.001 g/cm(2) of sodium benzoate (SB). The samples were stored at room temperature (ca. 20 degrees C) for 10 days. Incorporating antimicrobials into chitosan-coated plastic films slowed down or inhibited the growth of L. monocytogenes. The chitosan-coated plastic film containing SL was the most effective antimicrobial film and its efficacy against L. monocytogenes on ham steaks was evaluated during 12-week storage at 4 degrees C. The film showed excellent long-term antilisterial effect with the counts of L. monocytogenes being slightly lower than the initial inoculum. Chitosan-coated plastic films containing 0.001 g/cm(2) of SL have a potential to be used on ham steaks to control L. monocytogenes.

Authors+Show Affiliations

Department of Animal & Food Sciences, University of Delaware, Newark, DE 19716-2150, USA.No affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

18206768

Citation

Ye, Mu, et al. "Control of Listeria Monocytogenes On Ham Steaks By Antimicrobials Incorporated Into Chitosan-coated Plastic Films." Food Microbiology, vol. 25, no. 2, 2008, pp. 260-8.
Ye M, Neetoo H, Chen H. Control of Listeria monocytogenes on ham steaks by antimicrobials incorporated into chitosan-coated plastic films. Food Microbiol. 2008;25(2):260-8.
Ye, M., Neetoo, H., & Chen, H. (2008). Control of Listeria monocytogenes on ham steaks by antimicrobials incorporated into chitosan-coated plastic films. Food Microbiology, 25(2), 260-8. https://doi.org/10.1016/j.fm.2007.10.014
Ye M, Neetoo H, Chen H. Control of Listeria Monocytogenes On Ham Steaks By Antimicrobials Incorporated Into Chitosan-coated Plastic Films. Food Microbiol. 2008;25(2):260-8. PubMed PMID: 18206768.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Control of Listeria monocytogenes on ham steaks by antimicrobials incorporated into chitosan-coated plastic films. AU - Ye,Mu, AU - Neetoo,Hudaa, AU - Chen,Haiqiang, Y1 - 2007/11/07/ PY - 2007/07/24/received PY - 2007/10/17/revised PY - 2007/10/29/accepted PY - 2008/1/22/pubmed PY - 2008/2/9/medline PY - 2008/1/22/entrez SP - 260 EP - 8 JF - Food microbiology JO - Food Microbiol VL - 25 IS - 2 N2 - Contamination of ready-to-eat (RTE) meat products such as ham steaks with Listeria monocytogenes has been a concern for the meat processing industry. The objective of this study was to evaluate the antilisterial efficacy of chitosan-coated plastic films alone or incorporating five generally recognized as safe (GRAS) antimicrobials. Effect of chitosan-coated plastic film on the growth of L. monocytogenes was first investigated in an aqueous system of culture medium broth and chitosan-coated films were able to inhibit the growth of L. monocytogenes in a concentration-dependent manner. However, chitosan-coated plastic films were not able to control the growth of L. monocytogenes on ham steaks. Therefore, five GRAS antimicrobials were subsequently incorporated into chitosan-coated plastic films to enhance their antilisterial effectiveness. Ham steaks were surface-inoculated with a five-strain cocktail of L. monocytogenes and then packaged in chitosan-coated plastic films containing 500 IU/cm(2) of nisin, 0.01 g/cm(2) of sodium lactate (SL), 0.0025 g/cm(2) of sodium diacetate, 0.003 g/cm(2) of potassium sorbate (PB), or 0.001 g/cm(2) of sodium benzoate (SB). The samples were stored at room temperature (ca. 20 degrees C) for 10 days. Incorporating antimicrobials into chitosan-coated plastic films slowed down or inhibited the growth of L. monocytogenes. The chitosan-coated plastic film containing SL was the most effective antimicrobial film and its efficacy against L. monocytogenes on ham steaks was evaluated during 12-week storage at 4 degrees C. The film showed excellent long-term antilisterial effect with the counts of L. monocytogenes being slightly lower than the initial inoculum. Chitosan-coated plastic films containing 0.001 g/cm(2) of SL have a potential to be used on ham steaks to control L. monocytogenes. SN - 1095-9998 UR - https://www.unboundmedicine.com/medline/citation/18206768/Control_of_Listeria_monocytogenes_on_ham_steaks_by_antimicrobials_incorporated_into_chitosan_coated_plastic_films_ DB - PRIME DP - Unbound Medicine ER -