The identification of odorous metabolites produced from algal monocultures

摘要: Four algal species commonly found in the River Seine were cultured for a comprehensive investigation of their odorous metabolites. Closed loop stripping analysis (CLSA), open (OSA) and steam distillation extraction (SDE) used to extract concentrate wide range The odour causing compounds identified by combination chemical (gas chromatography-mass spectrometry (GC-MS)) sensory (sensory-gas chromatography (sensory-GC), flavour profile (FPA)) analyses. responsible unpleasant odours alkenes, saturated unsaturated aliphatic alcohols, aldehydes, ketones, sulphides pyrazines. Some septic muddy/musty may have been bacterial or fungal origin as cultures non-axenic. Sensory-GC was be valuable tool identifying very low thresholds, which present at below detection limits GC-MS.