Abstract：
:The microbial biodiversity and dynamics of king scallops meat and coral during cold storage (cold chain rupture: 1/3 storage time at 4 °C followed by 2/3 at 8 °C), was assessed by combining culture-dependant and -independent methods. Products were packaged as follows: aerobic, vacuum packed and 3 different CO2/N2 modified atmospheres and the impact of these conditions on the microbial communities was assessed. Results indicated that under air (current packaging condition), the dominant species corresponded to Brochothrix thermosphacta, Pseudomonas spp. and Shewanella spp. These species have regularly been associated in the literature with food (especially seafood), and product spoilage. Moellerella wisconsensis was the only species detected on VRBG medium, however, its impact on the food product is unclear. Packaging conditions influenced the ecosystem equilibrium and biodiversity. Except for day 8, the lowest counts for all studied flora were observed for modified atmosphere packaging (MAP) containing >80% CO2. Moreover, in these conditions, higher biodiversity by Temporal Temperature Gradient Gel Electrophoresis (TTGE) and the non-detection of specific flora (i.e. Pseudoalteromonas haloplanktis) were observed. At day 8, scallops packaged using these conditions were still acceptable from a sensorial point of view (odour), although the initial load of the king scallop was high (total psychrotrophic flora reached 5.5 log CFU/g).
journal_name
Food Microbioljournal_title
Food microbiologyauthors
Coton M,Joffraud JJ,Mekhtiche L,Leroi F,Coton Edoi
10.1016/j.fm.2013.02.011subject
Has Abstractpub_date
2013-09-01 00:00:00pages
99-107issue
2eissn
0740-0020issn
1095-9998pii
S0740-0020(13)00035-Xjournal_volume
35pub_type
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