Authors: Fang, Tony J.; Lin, Lo-Wei

Source: Journal of Food Protection®, Volume 57, Number 6, June 1994 , pp. 479-485(7)

Publisher: International Association for Food Protection

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

Document Type: Research article

Affiliations: 1: Department of Food Science, National Chung Hsing University, 250 Kuokuang Road, Taichung, 40227, Taiwan, Republic of China

Publication date: 1994-06-01

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: info@foodprotection.org or Web site: www.foodprotection.org
  
• 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

• In this: publication
• By this: publisher
• In this Subject: Nutrition & Food
• By this author: Fang, Tony J. ;  Lin, Lo-Wei

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers