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Control of microbial growth and rancidity in rabbit carcasses by modified atmosphere packaging
Author(s) -
Berruga M Isabel,
Vergara Herminia,
Linares M Belén
Publication year - 2005
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2183
Subject(s) - tbars , food spoilage , food science , enterobacteriaceae , modified atmosphere , bacteria , thiobarbituric acid , pseudomonas , lactic acid , chemistry , total viable count , bacterial growth , water activity , microbiology and biotechnology , biology , shelf life , biochemistry , escherichia coli , lipid peroxidation , water content , antioxidant , gene , genetics , geotechnical engineering , engineering
Half‐carcasses of rabbit packed under four different modified atmospheres (MA; A: 30% CO 2 + 70% O 2 ; B: 30% CO 2 + 30% O 2 + 40% N 2 ; C: 40% CO 2 + 60% N 2 ; D: 80% CO 2 + 20% O 2 ) and stored at 1 °C over 20 days, were assessed in relation to bacteria (total viable counts (TVC), lactic acid bacteria (LAB), Enterobacteriaceae and Pseudomonas ) and rancidity development as 2‐thiobarbituric acid reactive substances (TBARS). None of the MA tested produced mean counts greater than 5 log CFU cm −2 for TVC and LAB, or greater 2 log CFU cm −2 for Pseudomonas and Enterobacteriaceae . All MA showed an inhibitory effect on microbial growth, especially on growth of the spoilage bacteria Pseudomonas and Enterobacteriaceae . This inhibition was more relevant in atmospheres with higher CO 2 concentrations (types C and D). Significant differences in rancidity levels between MA types ( p < 0.01) were observed 10 days post‐packing. In general these values were higher in MA type A, which showed a significant increase in TBARS values ( p < 0.05) over time. Copyright © 2005 Society of Chemical Industry