Identification of oligosulfide odorous compounds and their source in the Lake of Galilee

Off-flavor compounds from decaying cyanobacterial blooms of Lake Taihu

“…NH 4 + -N increased tenfold to twentyfold when DO was depleted quickly to zero. These increases agree with some previous studies, which indicated that cyanobacteria cell lysis resulted in a large release of nutrients (Ginzburg et al, 1998a(Ginzburg et al, , 1998bYe et al, 2010). Nutrients released during the decomposition of cyanobacterial blooms represent a potential source of internal nutrient loading to lakes.…”

A systematic study on spatial and seasonal patterns of eight taste and odor compounds with relation to various biotic and abiotic parameters in Gonghu Bay of Lake Taihu, China

“…Ginzburg et al (1998) revealed the emissions of dimethyl sulfide, dimethyl disulfide and dimethyltrisulfide from Peridinium gatunense, and Jüttner (1984) reported high concentrations of dimethyl sulfide and dimethyl disulfide in a eutrophic pond and attributed this to the metabolism of associated bacteria during the decay of Spirogyra and Oedogonium mats. However, little is known about the possible relation between sulfur compounds and toxic cyanobacterial blooms.…”

Microwave-assisted purge-and-trap extraction device coupled with gas chromatography and mass spectrometry for the determination of five predominant odors in sediment, fish tissues, and algal cells

“…Dimethyltrisulfide (DMTS), 2-methylisoborneol (MIB), geosmin (GSM), ␤-cyclocitral, and ␤-ionone are the frequently encountered odors during cyanobacteria bloom episodes [7][8][9][10]. These notorious compounds are a serious nuisance in municipal water supplies [11][12][13][14] and aquaculture [15,16] worldwide.…”

“…For instance, the fatal flaws of a cold trap include the loss of odors, which are mostly volatile organic compounds, when the recovery temperature changes from −80 • C to room temperature, and the condensation of air moisture compromises gas chromatography and mass spectrometry (GCMS). SPE and CLSA are time-consuming, labor-intensive and are unsuitable for trapping low-boiling-point odors [7,30,36]. Selecting a fiber suitable for the large-scale analysis of odors from different matrices is difficult in SPME [7,25,37].…”

“…SPE and CLSA are time-consuming, labor-intensive and are unsuitable for trapping low-boiling-point odors [7,30,36]. Selecting a fiber suitable for the large-scale analysis of odors from different matrices is difficult in SPME [7,25,37]. Finally, all of these enrichment techniques initially extract analytes and then concentrate or subject these extracts to other processes (e.g., removal of sodium chloride) before injecting them into detectors.…”