Shelf-life of Halal fresh and minced beef meat packaged under modified atmosphere

Submitted: 28 March 2013
Accepted: 4 June 2013
Published: 9 October 2013
Abstract Views: 1474
PDF - FULL TEXT IN ENG: 1536
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The shelf-life of Halal fresh cut and minced beef meat, packaged under modified atmosphere (MAP) was evaluated. The microbial profile of the carcasses intended for cutting and mincing was investigated by detecting spoilage and pathogenic bacteria. Samples of diced meat (DM), marrowbones (MB), steaks (S) and minced meat (MM) were packaged in MAP (66.0% O2, 25.0% CO2 and 9.0% N2) and stored at +2 and +8°C. At 0, 7 and 14 days, gas composition of headspace was measured. Moreover, in all the samples colony count at 30°C, Enterobacteriaceae, lactic acid bacteria (LAB) and Pseudomonas spp. were determined. The carcasses contamination was in compliance with the criteria fixed by EC Reg. 2073/2005. Gas composition of the headspace changed significantly during the storage, mainly at +8°C, where a significant decrease of O2 (until 0.1-0.6%) and an increase of CO2 (until 81.0-89.0%) were recorded. This could be related to the level of LAB and Pseudomonas spp. Less significant changes were observed at +2°C. At 7 days of storage colony count, mean values were higher than >107 CFU/g in the samples at +8°C, and also at 14 days at +2°C, presumably due to the high levels of Pseudomonas spp., that was dominant at the end of the test. Overall, the microbial mean counts were higher than those detected in similar products packaged under vacuum. In order to extend the shelf-life of the fresh meat and meat preparations, differentiated gas mixtures, and particularly a higher percentage of CO2, could be employed.

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Francesca Piras, Dipartimento di Medicina Veterinaria, settore di Ispezione degli Alimenti di Origine Animale, Università degli Studi di Sassari, Italia

How to Cite

1.
Piras F, Meloni D, Casti D, Mazza R, Fois F, Coppa G, Mazzette R. Shelf-life of Halal fresh and minced beef meat packaged under modified atmosphere. Ital J Food Safety [Internet]. 2013 Oct. 9 [cited 2024 Nov. 22];2(3):e37. Available from: https://www.pagepressjournals.org/ijfs/article/view/ijfs.2013.e37