Biological origins and annual variations of earthy-musty off-flavours in the Xionghe Reservoir in China

Abstract

Research Article| June 01 2010 Biological origins and annual variations of earthy-musty off-flavours in the Xionghe Reservoir in China Ting Zhang; Ting Zhang 1State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China2College of Animal Science and Technology, Hunan Agriculture University, Changsha 410128, China Search for other works by this author on: This Site PubMed Google Scholar Lin Li; Lin Li 1State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China Tel.: +86-27-68780806 Fax: +86-27-68780871 lilin@ihb.ac.cn Search for other works by this author on: This Site PubMed Google Scholar Yanxia Zuo; Yanxia Zuo 1State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China3Graduate School of the Chinese Academy of Science, Beijing 100039, China Search for other works by this author on: This Site PubMed Google Scholar Quan Zhou; Quan Zhou 1State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China3Graduate School of the Chinese Academy of Science, Beijing 100039, China Search for other works by this author on: This Site PubMed Google Scholar Lirong Song Lirong Song 1State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China lrsong@ihb.ac.cn Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2010) 59 (4): 243–254. https://doi.org/10.2166/aqua.2010.019 Article history Received: January 15 2009 Accepted: December 02 2009 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Ting Zhang, Lin Li, Yanxia Zuo, Quan Zhou, Lirong Song; Biological origins and annual variations of earthy-musty off-flavours in the Xionghe Reservoir in China. Journal of Water Supply: Research and Technology-Aqua 1 June 2010; 59 (4): 243–254. doi: https://doi.org/10.2166/aqua.2010.019 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex The annual variations in physicochemical parameters, algal abundance and odorous compounds in the Xionghe Reservoir were investigated, in order to identify the possible odorous compounds and their origins. From May 2007 to April 2008, the algal composition, cell number and earthy-musty odorous compounds both in the water and in the flesh of fish at Sites A, B and C were determined monthly. The physicochemical parameters such as total nitrogen (TN), total phosphorus (TP), dissolved oxygen (DO), pH, transparency, water temperature and chlorophyll a (chl a) were simultaneously determined. A statistical correlation was noted between the chl a and water temperature: 0.678 (P<0.05) for Site A, 0.831 (P<0.01) for Site B and 0.659 (P<0.05) for Site C. Geosmin and 2-methylisoborneol (2-MIB)—in the reservoir were identified by gas chromatography-mass spectrometry (GC-MS). We observed that a large amount of Anabaena circinalis bloomed in surface water during the off-flavour episodes. In July 2007, we detected the highest concentration of geosmin (2.7 μg/L in the water, 0.27 μg/kg in the silver carp and 0.10 μg/kg in the crucian carp), while no 2-MIB was detected, which indicated that geosmin was mainly responsible for the off-flavour episodes in summer. cyanobacteria, earthy-musty off-flavour, geosmin, reservoir, 2-methylisoborneol This content is only available as a PDF. © IWA Publishing 2010 You do not currently have access to this content.