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The effects of non-vacuum packaging systems on drip loss from chilled beef.
MedLine Citation:
PMID:  22060578     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This study investigated drip loss in chilled beef (hot-boned m. longissimus lumborum (LL)) under conventional packaging systems, in which a vacuum is applied, and non-vacuum packaging systems. The use of vacuum during the packaging process (vacuum packaging, CO(2) atmosphere packaging) was associated with increased drip. Drip was lower in heat-shrunk vacuum packaging than in non-shrunk vacuum packaging. A slow vacuum onset had no effect on drip formation, or may have increased it. The extent of pressure reduction (vacuum; range 0-1 atm) did not significantly affect drip formation, although the standard vacuum pressure (0 atm) tended to cause more drip loss than higher pressures. The three non-vacuum anaerobic packaging systems tested were: flushed with carbon dioxide without the pressure being reduced below atmospheric (Flush), or the same system with no CO(2) flush but a proprietary oxygen absorber added (Scavenger), or a combination of both (Flush/Scavenger). Storage was at -1.5 °C for up to 20 weeks. The Flush and Flush/Scavenger systems had considerably lower drip loss than the CAP standard system (6.4%, 6.5%, and 9.1% respectively); the Scavenger system had the lowest drip loss (5.2%). Drip losses generally increased with storage period, irrespective of packaging system. All non-vacuum packaging systems except the Flush system had very low oxygen levels (<0.l% v v ). The Flush system had considerably higher levels of oxygen (0.9%) with associated browning of meat samples. All packaging systems gave a hygienic shelf-life of at least 16 weeks. At 16 weeks, microbial numbers were highest (5 × 10(6)) in the Scavenger system. The meat from all packaging systems was acceptable to taste panels even after 16 weeks of storage at -1.5 °C. There were no significant differences between any of the packaging systems for any of the sensory attributes tested. The packaging systems with the best all round performance were the Flush/Scavenger and the Scavenger systems, depending on the storage-life required.
Authors:
S R Payne; C J Durham; S M Scott; C E Devine
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Meat science     Volume:  49     ISSN:  0309-1740     ISO Abbreviation:  Meat Sci.     Publication Date:  1998 Jul 
Date Detail:
Created Date:  2011-11-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101160862     Medline TA:  Meat Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  277-87     Citation Subset:  -    
Affiliation:
Meat Industry Research Institute of New Zealand (Inc), PO Box 617, Hamilton, New Zealand.
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