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Environ Pollut

Title:		Release of taste and odour compounds during Zizania latifolia decay: A microcosm system study
Author(s):		Yu C; Shi C; Tang J; Ji Q; Wang X; Xu X; Wang G;
Address:		"School of Environment, Nanjing Normal University, Jiangsu Centre for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing 210023, China; Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China. School of Environment, Nanjing Normal University, Jiangsu Centre for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing 210023, China. School of Environment, Nanjing Normal University, Jiangsu Centre for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing 210023, China. Electronic address: wangguoxiang@njnu.edu.cn"
Journal Title:		Environ Pollut
Year:		2019
Volume:		20190725
Issue:		Pt A
Page Number:		112954 -
DOI:		10.1016/j.envpol.2019.07.122
ISSN/ISBN:		1873-6424 (Electronic) 0269-7491 (Linking)
Abstract:		"Organic matter-induced black bloom frequently occurs in a number of large eutrophic shallow lakes; this can result in the release of malodorous compounds and has a negative impact on water quality. In the study, a microcosm system containing Zizania latifolia (Z. latifolia), a common aquatic plant, was established and the release of seven taste and odour compounds, dimethyl sulphide (DMS), dimethyl disulphide (DMDS), dimethyl trisulphide (DMTS), 2-methylisoborneol (MIB), geosmin (GSM), beta-cyclocitral, and beta-ionone, was investigated. The results showed that these compounds were all detected during Z. latifolia decay, and that volatile organic sulphur compounds (VOSCs), such as DMS, DMDS, and DMTS, were the main factors responsible for the strong foul odour (the maximum reached 5.0?ª+mug?ª+L(-1)). The release of odorous compounds was stronger during the initial seven days, and then progressively decreased in the middle stage of the experiment. Furthermore, large amounts of nutrients were released into the overlying water; nutrient concentration increased with increasing plant biomass. A positive correlation was observed between the odorant concentration and plant biomass. These results indicate that the density of aquatic plants should be controlled as part of future management of aquatic ecosystems"
Keywords:		"Aldehydes *Biodegradation, Environmental Camphanes Diterpenes *Ecosystem Lakes Naphthols Norisoprenoids Odorants/*analysis *Poaceae Sulfides Taste Volatile Organic Compounds Water Quality Black bloom Decay Taste and odour compounds Zizania latifolia;"
Notes:		"MedlineYu, Cencen Shi, Chenfei Tang, Jing Ji, Qiuyi Wang, Xuan Xu, Xiaoguang Wang, Guoxiang eng England 2019/08/10 Environ Pollut. 2019 Nov; 254(Pt A):112954. doi: 10.1016/j.envpol.2019.07.122. Epub 2019 Jul 25"