IMIS | Vlaams Instituut voor de Zee
 

Vlaams Instituut voor de Zee

Platform voor marien onderzoek

IMIS

Publicaties | Instituten | Personen | Datasets | Projecten | Kaarten
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Effect of O2 - CO2 enriched atmospheres on microbiological growth and volatile metabolite production in packaged cooked peeled gray shrimp (Crangon crangon)
Noseda, B.; Goethals, J.; De Smedt, L.; Dewulf, J.; Samapundo, S.; Van Langenhove, H.; Devlieghere, F. (2012). Effect of O2 - CO2 enriched atmospheres on microbiological growth and volatile metabolite production in packaged cooked peeled gray shrimp (Crangon crangon). Intern. J. Food Microbiol. 160(1): 65-75. dx.doi.org/10.1016/j.ijfoodmicro.2012.09.018
In: International Journal of Food Microbiology. Elsevier: Amsterdam. ISSN 0168-1605; e-ISSN 1879-3460, meer
Peer reviewed article  

Beschikbaar in  Auteurs 
    VLIZ: Open Repository 279331 [ OMA ]

Trefwoorden
    Crangon crangon (Linnaeus, 1758) [WoRMS]; Marien
Author keywords
    Crangon crangon; MAP; Volatile spoilage metabolites; SIFT-MS; Shelflife; Microbial activity

Auteurs  Top 
  • Samapundo, S., meer
  • Van Langenhove, H., meer
  • Devlieghere, F., meer

Abstract
    This study evaluated the effect of modified atmospheres (MAs) with different O2 concentrations on microbial growth and volatile metabolite production in gray shrimp (Crangon crangon) during storage at 4 °C. Eight MAs were evaluated in total. Four of the MAs evaluated were without CO2: 0/0/100, 0/10/90, 0/30/70, 0/50/50 (% CO2/O2/N2) whilst the other four MAs all contained 50% CO2: 50/0/50, 50/10/40, 50/30/20, 50/50/0 (% CO2/O2/N2). Volatile spoilage metabolites were identified by thermal desorption GC-MS and quantified during storage by selective ion flow tube mass spectrometry (SIFT-MS). In comparison to microbial growth observed with an atmosphere of 100% N2, microbial growth was stimulated by the addition of O2 in the MAP in the absence of CO2. Under these conditions the total psychrotrophic counts exceeded 7 log cfu g- 1 after just 3 days of storage. However, in the presence of 50% CO2 the total psychrotrophic count exceeded 7 log cfu g- 1 after 5 days of storage. The combination of 50% CO2 and 50% O2 significantly inhibited microbial growth. For this MA condition, a diminishing effect on the production of metabolites was also observed, especially for amines and sulfur compounds, which constituted the major fraction of components causing the offensive odor.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs