Incidence of Listeria monocytogenes in Packages of Retail Franks

$37.00 plus tax (Refund Policy)

Buy Article:


Twenty brands of retail frankfurters obtained from local supermarkets were examined for the presence of Listeria spp. Listeria spp. were found in 8 of 20 brands and Listeria monocytogenes in 6 of the 20 brands tested. In retail samples from 19 brands of frankfurters, Listeria spp. were found at an overall incidence of 10% (9 of 93 packages) of which 7.5% (7 of 93) contained L. monocytogenes and 2.5% (2 of 93) Listeria innocua. However, another brand (No. 20) had incidence levels as high as 71% (17 of 24) for L. monocytogenes and 81% for all Listeria spp. Testing the internal meats versus liquid exudates demonstrated that Listeria spp. were found only in the exudate, indicating that the presence of Listeria was likely due to postprocess contamination. Most probable number (MPN) analysis indicated that L. monocytogenes was present at levels of 0.34 to 2.3 MPN per ml of exudate, or 4.3 to 27.6 MPN per package. Chemical and microbial analyses found brand No. 20 to have the highest pH and NaCl levels among five brands tested; this combination may favor Listeria spp. and suppress competing microorganisms. A prior outbreak of listeriosis from the consumption of nonreheated franks, together with the data presented herein, indicates there is a potential foodborne hazard in consuming uncooked franks or in cross-contamination of other foods from handling package exudate.

Document Type: Research Article

Affiliations: Department of Food Science, Purdue University, West Lafayette, Indiana 47907

Publication date: May 1, 1994

More about this publication?
  • IAFP members must first sign in on the right to access full text articles of JFP

    First published in 1937, the Journal of Food Protection®, 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 Members and Institutional subscribers. Online visitors who are not IAFP Members or journal subscribers will be charged on a pay-per-view basis. Information can be obtained by calling +1 800.369.6337; +1 515.276.3344; fax: +1 515.276.8655, E-mail: or Web site:
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Information for Advertisers
  • ingentaconnect is not responsible for the content or availability of external websites
Related content



Share Content

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
Cookie Policy
ingentaconnect 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