a few central preservation parameters such as temperature, atmosphere, aw and pH. Based on such
knowledge, more detailed sensory, chemical and microbiological analysis can be carried out on the
individual products to determine the actual specific spoilage organism. Whilst the chemical and
physical parameters are the main determining factors for selection of spoilage microorganisms, a level
of refinement may be found in some products in which the interactive behavior of microorganisms
may contribute to their growth and/or spoilage activity. This review gives three such examples. We describe the competitive advantage of Pseudomonas spp. Due to the production of iron-chelating
siderophores, the generation of substrates for spoilage reactions by one organism from another
microorganism (so-called metabiosis) and the up-regulation of phenotypes potentially involved in
spoilage through cell-to-cell communication. In particular, we report for the first time the widespread occurrence of N-acyl homoserine lactones (AHL) in stored and spoiling fresh foods and we discuss the potential implications for spoilage and food preservation.
a few central preservation parameters such as temperature, atmosphere, aw and pH. Based on such
knowledge, more detailed sensory, chemical and microbiological analysis can be carried out on the
individual products to determine the actual specific spoilage organism. Whilst the chemical and
physical parameters are the main determining factors for selection of spoilage microorganisms, a level
of refinement may be found in some products in which the interactive behavior of microorganisms
may contribute to their growth and/or spoilage activity. This review gives three such examples. We describe the competitive advantage of Pseudomonas spp. Due to the production of iron-chelating
siderophores, the generation of substrates for spoilage reactions by one organism from another
microorganism (so-called metabiosis) and the up-regulation of phenotypes potentially involved in
spoilage through cell-to-cell communication. In particular, we report for the first time the widespread occurrence of N-acyl homoserine lactones (AHL) in stored and spoiling fresh foods and we discuss the potential implications for spoilage and food preservation.
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