FN Archimer Export Format PT J TI Sensory characteristics of spoilage and volatile compounds associated with bacteria isolated from cooked and peeled tropical shrimps using SPME-GC-MS analysis BT AF JAFFRES, Emmanuel LALANNE, Valerie MACE, Sabrina CORNET, Josiane CARDINAL, Mireille SEROT, Thierry DOUSSET, Xavier JOFFRAUD, Jean-Jacques AS 1:1,2,3,5;2:4,5;3:1,2,3,5;4:3;5:3;6:4,5;7:1,2;8:3; FF 1:PDG-DOP-DCN-STAM;2:;3:PDG-RBE-BRM-STBM;4:PDG-RBE-BRM-STBM;5:PDG-RBE-BRM-STBM;6:PDG-DOP-DCN-STAM;7:;8:PDG-RBE-BRM-STBM; C1 LUNAM Université, Oniris, UMR 1014 Secalim, Nantes, F-44307, France INRA, Nantes, F-44307, France Ifremer, Laboratoire Science et Technologie de la Biomasse Marine, BP 21105, 44311 Nantes Cedex 3, France LUNAM Université, ONIRIS, UMR 6144 GEPEA, Flavor Unit, F 44307, France CNRS, Nantes, F-44307, France C2 UNIV NANTES, FRANCE INRA, FRANCE IFREMER, FRANCE UNIV NANTES, FRANCE CNRS, FRANCE SI NANTES SE PDG-DOP-DCN-STAM PDG-RBE-BRM-STBM IN WOS Ifremer jusqu'en 2018 copubli-france copubli-p187 copubli-univ-france IF 3.327 TC 115 UR https://archimer.ifremer.fr/doc/00040/15089/12431.pdf LA English DT Article AB The spoilage potential of six bacterial species isolated from cooked and peeled tropical shrimps (Brochothrix thermosphacta, Serratia liquefaciens-like, Carnobacterium maltaromaticum, Carnobacterium divergens, Carnobacterium alterfunditum-like and Vagococcus penaei sp. nov.) was evaluated. The bacteria were inoculated into shrimps, packaged in a modified atmosphere and stored for 27 days at 8 °C. Twice a week, microbial growth, as well as chemical and sensory changes, were monitored during the storage period. The bacteria mainly involved in shrimp spoilage were B. thermosphacta, S. liquefaciens-like and C. maltaromaticum whose main characteristic odours were cheese-sour, cabbage-amine and cheese-sour-butter, respectively. The volatile fraction of the inoculated shrimp samples was analysed by solid-phase microextraction (SPME) and gas chromatography coupled to mass spectrometry (GC–MS). This method showed that the characteristic odours were most likely induced by the production of volatile compounds such as 3-methyl-1-butanal, 2,3-butanedione, 2-methyl-1-butanal, 2,3-heptanedione and trimethylamine. Research highlights ► Cooked shrimps are very sensitive to microbiological spoilage process. ► Spoilage bacteria can produce chemical compounds with off-flavour. ► Such compounds give rise to a shelf-life decrease of cooked shrimps. ► Spoilage potential of bacteria evaluated using SPME–GC–MS and sensory analysis. ► B. thermosphacta, S. liquefaciens, C. maltaromaticum are the main spoilage bacteria. PY 2011 PD JUL SO International Journal Of Food Microbiology SN 0168-1605 VL 147 IS 3 UT 000292360400006 BP 195 EP 202 DI 10.1016/j.ijfoodmicro.2011.04.008 ID 15089 ER EF