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Bacterial contaminants in liquid packaging boards: assessment of potential for food spoilage
- Source :
- Journal of Applied Bacteriology. 81:445-458
- Publication Year :
- 1996
- Publisher :
- Wiley, 1996.
-
Abstract
- Liquid packaging boards and blanks were examined for microbial contaminants. A total of 218 strains were identified and representatives of the most frequent species were characterized for their potential for food spoilage. Contaminants found were aerobic spore-forming bacteria, mostly Bacillus megaterium, B. licheniformis, B. cereus group, B. pumilus, Paenibacillus macerans, P. polymyxa, P. pabuli and B. flexus. Production of amylolytic, proteolytic, lipolytic and phospholipolytic enzymes was common. Approximately 50% of the B. cereus group strains were positive in the diarrhoeal enterotoxin immunoassay test or in the enterotoxin reversed passive latex agglutination test. Strains capable of growth at 6 degrees C were found among B. cereus group, P. pabuli, P. validus, B. megaterium and P. polymyxa. All b. licheniformis strains grew at 55 degrees C. The spores of B. licheniformis were most resistant to hydrogen peroxide. The B. cereus group strains were recognizable by fatty acid components not present in any of the other paperboard strains, 11-methyldodecanoic acid (13:0 iso) and trans-9-hexadecenoic acid (16:1 omega 7 trans), each contributing 7% or more to the total cellular fatty acids.
- Subjects :
- Paper
Food spoilage
Bacillus cereus
Applied Microbiology and Biotechnology
Microbiology
03 medical and health sciences
Paenibacillus
Bacillus licheniformis
030304 developmental biology
Bacillus megaterium
2. Zero hunger
0303 health sciences
Bacteria
biology
030306 microbiology
Bacillus pumilus
Fatty Acids
fungi
Food Packaging
Hydrogen Peroxide
General Medicine
Oxidants
biology.organism_classification
Anti-Bacterial Agents
Bacterial Typing Techniques
Cereus
Food Microbiology
Paenibacillus polymyxa
Oxidation-Reduction
Biotechnology
Subjects
Details
- ISSN :
- 00218847
- Volume :
- 81
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Bacteriology
- Accession number :
- edsair.doi.dedup.....05fce5a9f4618a947e0124f8fcbb9f48
- Full Text :
- https://doi.org/10.1111/j.1365-2672.1996.tb03532.x