Bacteriology of Spoilage of Fish Muscle1: III. Characterization of Spoilers
AUTOR(ES)
Lerke, Peter
RESUMO
A total of 807 bacterial isolates from fresh and spoiling fillets of English sole (Parophrys vetulus) stored at 5 C were classified as to genus and tested for various biochemical activities, including the ability to spoil sterile muscle press juice at 5 C. Production of off-odor, volatile reducing substances, and trimethylamine was used to estimate spoilage. It was found that (i) spoilers could be distinguished from nonspoilers on the basis of the juice spoilage test, (ii) differentiation between spoilers and nonspoilers could not be achieved by means of the usual biochemical tests, (iii) no micrococci, flavobacteria, and “coryneforms” were spoilers, (iv) certain specific subgroups of the genus Pseudomonas consisted exclusively of spoilers whereas others were inactive, (v) the genus Achromobacter likewise consisted of spoilers and nonspoilers, and (vi) “coliforms” could produce spoilage. It was concluded that a method is now available to determine directly and unequivocally the role played in spoilage by various bacterial groups and that it is no longer necessary to rely on indirect evidence.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1058308Documentos Relacionados
- Bacteriology of Spoilage of Fish Muscle: II. Incidence of Spoilers During Spoilage1
- Bacteriology of Spoilage of Fish Muscle: IV. Role of Protein
- Bacteriology of Spoilage of Fish Muscle: I. Sterile Press Juice as a Suitable Experimental Medium
- Effect of γ Irradiation on the Microflora of Freshwater Fish: III. Spoilage Patterns and Extension of Refrigerated Storage Life of Yellow Perch Fillets Irradiated to 0.1 and 0.2 Megarad1
- Bacteriology of Manganese Nodules: III. Reduction of MnO2 by Two Strains of Nodule Bacteria1