Skip to main content

Growth of Listeria monocytogenes and Pseudomonas fragi on Cooked Pork in a Modified Atmosphere Packaging/Nisin Combination System

Buy Article:

$37.00 plus tax (Refund Policy)

Abstract:

The influence of carbon dioxide (CO2) atmospheres combined with various nisin concentrations on the growth of Listeria monocytogenes Scott A and Pseudomonas fragi CCRC 10939 on cooked tenderloin pork stored at 4 and 20°C was investigated. Atmospheres employed were 100 and 80% CO2; and an air control. Pork tenderloins were steamed, cooled, and coinoculated with L. monocytogenes and P. fragi. Headspace composition of sample bags determined throughout storage at 4°C indicated that greater growth occurred on air-stored tenderloins than on modified atmosphere-stored (MA-stored) samples. Colony counts of P. fragi were appreciably reduced by the MA storage; however, the same pattern was not found in L. monocytogenes. Although P. fragi on cooked tenderloin was unaffected by nisin, the growth of L. monocytogenes was prevented when samples were treated with 1 × 104 nisin IU/ml. In addition, the modified atmosphere packaging (MAP) (100% CO2, 80% CO2 + 20% air)/nisin (103, 104 IU/ml) combination system used in this study decreased growth of both organisms, and this inhibitory effect for MAP/nisin combination system was more pronounced at 4°C than at 20°C. The concept of a Safety Index, which compares numbers of spoilage and pathogenic organisms, was also used as a measure of the relative safety of this MAP/nisin combination system.

Keywords: DECONTAMINATION; LISTERIA MONOCYTOGENES; MAP/NISIN COMBINATION SYSTEM; PORK; PSEUDOMONAS FRAGI

Document Type: Research Article

Affiliations: Department of Food Science, National Chung Hsing University, 250 Kuokuang Road, Taichung, 40227, Taiwan, Republic of China

Publication date: June 1, 1994

More about this publication?
  • IAFP Members with personal subscriptions to JFP Online: To access full-text JFP or JMFT articles, you must sign-in in the upper-right corner using your Ingenta sign-in details (your IAFP Member Login does not apply to this website).

    The Journal of Food Protection (JFP) is a refereed monthly publication. Each issue contains scientific research and authoritative review articles reporting on a variety of topics in food science pertaining to food safety and quality. The Journal is internationally recognized as the leading publication in the field of food microbiology with a readership exceeding 11,000 scientists from 70 countries. The Journal of Food Protection is indexed in Index Medicus, Current Contents, BIOSIS, PubMed, Medline, and many others.

    Print and online subscriptions are available to IAFP Members and institutional subscribers. IAFP Members with a subscription to JFP Online will have access to all available JFP and JMFT content. Online visitors who are not IAFP Members or journal subscribers will be charged on a pay-per-view basis. Membership and subscription information is available at www.foodprotection.org.
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Information for Advertisers
  • Ingenta Connect is not responsible for the content or availability of external websites
iafp/jfp/1994/00000057/00000006/art00005
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more