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Online since: January 2013
Authors: Hai Yan, Qian Qian Xu, Xiao Lu Liu, Yuan Yuan Wu, Xue Yao Yin, Ning Ning Yang
Rosen: Growth and 2-methylisoborneol production by the Cyanobacterium Phorium LM 689.
Means: Bacterial-Degradation of 2-Methylisoborneol.
Sumitomo: Biodegradation of 2-Methylisoborneol by Gravel Sand Filtration.
Sandusky: Biotransformation of 2-Methylisoborneol by Camphor-Degrading Bacteria.
Fuchigami: Rapid communication: Biodegradation of a musty odour component, 2-Methylisoborneol.
Means: Bacterial-Degradation of 2-Methylisoborneol.
Sumitomo: Biodegradation of 2-Methylisoborneol by Gravel Sand Filtration.
Sandusky: Biotransformation of 2-Methylisoborneol by Camphor-Degrading Bacteria.
Fuchigami: Rapid communication: Biodegradation of a musty odour component, 2-Methylisoborneol.
Online since: May 2011
Authors: Xiao Yan Ma, Nai Yun Gao, Jun Li, Chen Chen
Adsorption of 2-Methylisoborneol in Drinking Water by Different Granular Carbons
MA Xiaoyan1,a, GAO Naiyun2,b, LI Jun1,c, CHEN Chen1,d
1 College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou, 310032,China
2 State Key Laboratory of Pollution Control and Resource Reuse, CoLLMEge of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
a mayaner620@163.com, b gaonaiyun@tongji.edu.cn, c tanweilijun@yahoo.com.cn,
d ksy.198708@yahoo.com.cn
The National Major Project of Science & Technology Ministry of China (Grant No.2008ZX07421-002); Research Project of Education Department of Zhejiang Province (Y200803509)
Key Words: Odor and taste compound, 2-methylisoborneol(2-MIB), activated carbon adsorption, drinking water treatment
Abstract: Three kinds of granular carbon made from different materials of coal, coconut shell and jujube seed were evaluated for adsorption of 2-methylisoborneol in drinking water by equilibrium isotherm
Online since: December 2014
Authors: Rui Bao Jia, Xing Li, Wu Chang Song, Shao Hua Sun, Yan Ling Yang
Optimizing Pretreatment Methods and Application for Analysis of Geosmin and 2-methylisobomeol in Drinking Water
Wu Chang Song 1, 2, a, Xing Li 1, b, Shao Hua Sun 2, c,
Yan Ling Yang 1, d, Rui Bao Jia* 2, e
1 College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
2Shandong Water and Wastewater Monitoring Center, Jinan, 250021, China
asongwuchang@163.com, blixing@vip.163.com, cjnsunshaohua@163.com,
dyangyanling@bjut.edu.cn,ejiaruibao68@126.com
Keywords: geosmin, 2-Methylisoborneol, liquid-liquid extraction, solid phase extraction, solid phase micro-extraction
Abstract.
The relative standard deviation of SPE-GC-MS for analysis geosmin and 2-Methylisoborneol were 1.5% and 1.7%, the recovery rate were in the range of 98.8%~102.0% and 99.5%~104.0%, respectively. 2-methylisobomeol was the major taste and odor of a micro-polluted reservoir in later autumn to earlier winter, which was secreted by Planktothrix and Oscillatoria.
Geosmin (GSM) and 2-Methylisoborneol (2-MIB), two tertiary non-toxic and semi-volatile alcohols, are the most common and problematic compounds among the T&O causing chemicals in drinking water, which always produce earthy and musty odor [1, 2].
The relative standard deviation of SPE-GC-MS for analysis geosmin and 2-Methylisoborneol were 1.5% and 1.7%, the recovery rate were in the range of 98.8%~102.0% and 99.5%~104.0%, respectively. 2-methylisobomeol was the major taste and odor of a micro-polluted reservoir in later autumn to earlier winter, which was secreted by Planktothrix and Oscillatoria.
Geosmin (GSM) and 2-Methylisoborneol (2-MIB), two tertiary non-toxic and semi-volatile alcohols, are the most common and problematic compounds among the T&O causing chemicals in drinking water, which always produce earthy and musty odor [1, 2].
Online since: February 2014
Authors: Tu Qiao Zhang, Li Li Sun, Zhi Wei Zhu, Ke Jia Zhang
The reports showed that musty and fishy are two major odors in the drinking water and drinking water sources[4], the source and mechanism of musty odor compounds, especially about Geosmin and 2-Methylisoborneol were deeply researched on during the ten years[5, 6].
Bruchet.The drinking water taste and odor wheel for the millennium: beyond Geosmin and 2-methylisoborneol, J.
Identification and functional analysis of genes controlling biosynthesis of 2-methylisoborneol, J.PNAS. 105(2008) 7422-7427
Bruchet.The drinking water taste and odor wheel for the millennium: beyond Geosmin and 2-methylisoborneol, J.
Identification and functional analysis of genes controlling biosynthesis of 2-methylisoborneol, J.PNAS. 105(2008) 7422-7427
Online since: May 2011
Authors: Cheng Ping Xie, Kai Fu Li, Jin Ling Lin, Jian Bian Li
The main compounds were Mequinol, 1,2-benzenediol, 1(3H)-Isobenzofuranone, Vanillin, 1,4-Naphthalenedione, Naphthalene, 1,2,3,4,4a,5,6,8a- octahydro-7-methyl-4-methylene-1- (1- methylethyl), Cyclohexane, 1-ethenyl-1-methyl- 2-(1-methylethenyl)-4- (1- methylethylidene)-, 4,6-Dimethoxysalicylaldehyde, 2-Propenal, 3-(1,3-benzodioxol-5-yl)-, 4-((1E)-3-Hydroxy -1-propenyl) -2-methoxyphenol, 1H-Imidazole, 1-ethyl-, 2-Methylisoborneol, Phthalic acid, phenyl 2-pentyl ester, 1,4-Naphthalenedione, 2-hydroxy-3-(3-methyl-2-butenyl)-, [1,1'-Biphenyl]-2-ol, 5-(1,1-dimethylethyl)-, 9,10- Anthracenedione, 2-methyl-, 1-Hydroxy-4-methylanthraquinone, Indane-1,3-dione, 2-(3-hydroxyphenyl)- 2H-Benzopyran - 2-one, 4-methyl-3-phenyl-, 9,10-Anthracenedione, 1,8-dihydroxy-2-methyl-, 2-(Hydroxymethyl) anthraquinone, 4H-1-Benzopyran-4-one, 3-hydroxy-2-phenyl-, Benzofuran-3-one, 2-[3-hydroxy-4-methoxy benzylidene] -6-hydroxy-, Squalene, .gamma.
-Muurolene 0.64 - 0.18 23 10.07 Naphthalene, 1,2,3,4,4a,5,6,8a-octahydro-7-methyl- 4-methylene-1-(1-methylethyl) 2.91 0.31 0.11 24 10.12 Menadione - - 0.12 25 10.23 Oxazol-5(4H)-one, 2-(3,4-methylenedioxyphenyl)-4- (4-nitrobenzylideno)- 0.61 0.09 0.06 26 10.29 Homovanillyl alcohol - 0.16 0.15 27 10.51 Phenol, 3,4,5-trimethoxy- - 0.25 0.16 28 10.66 Cyclohexane, 1-ethenyl-1-methyl-2- (1-methylethenyl)-4-(1-methylethylidene)- 0.51 0.55 0.10 29 10.85 1,3-Benzodioxole-5-carboxylic acid, methyl ester 0.45 - 0.05 30 10.95 4,6-Dimethoxysalicylaldehyde 2.67 0.11 0.03 31 11.05 Naphthalene, 1,2,3,5,6,7,8,8a-octahydro-1,8a- dimethyl-7-(1-methylethenyl)- 1.63 - - 32 11.10 2-Propenal, 3-(1,3-benzodioxol-5-yl)- 4.03 0.58 0.31 33 11.58 4-((1E)-3-Hydroxy-1-propenyl)-2-methoxyphenol 2.53 2.68 1.27 34 12.35 1H-Imidazole, 1-ethyl- 0.61 0.61 0.61 35 12.66 2-Methylisoborneol 0.67 0.28 0.12 36 12.85 Dibenzo-p-dioxin - 0.13 0.22 37 13.40 1,1'-Biphenyl, 3-(1,1-dimethylethoxy)- - - 0.40 38 13.58 Phthalic acid
It was shown that 27 same compounds were found in ethanol extractives of different provenances teak heartwood, the content was 86.61%, 84.92% and 91.46%, they were Mequinol, 1,2-benzenediol, 1(3H)-Isobenzofuranone, Vanillin, 1,4-Naphthalenedione, Naphthalene, 1,2,3,4,4a,5,6,8a-octahydro -7-methyl-4-methylene-1- (1- methylethyl), Cyclohexane, 1-ethenyl-1-methyl-2- (1-methylethenyl) -4-(1-methylethylidene)-, 4,6-Dimethoxysalicylaldehyde, 2-Propenal, 3-(1,3-benzodioxol-5-yl)-, 4-((1E)-3-Hydroxy-1 -propenyl)-2-methoxyphenol, 1H-Imidazole, 1-ethyl-, 2-Methylisoborneol, Phthalic acid, phenyl 2-pentyl ester, 1,4-Naphthalenedione, 2-hydroxy-3-(3-methyl-2-butenyl)-, [1,1'-Biphenyl]-2-ol, 5-(1,1-dimethylethyl)-, 9,10-Anthracenedione, 2-methyl-, 1-Hydroxy-4- methylanthraquinone, Indane-1,3-dione, 2-(3-hydroxyphenyl)- 2H-Benzopyran-2-one, 4-methyl-3- phenyl-, 9,10-Anthracenedione, 1,8-dihydroxy-2-methyl-, 2-(Hydroxymethyl) anthraquinone, 4H-1-Benzopyran-4-one, 3-hydroxy-2-phenyl-, Benzofuran-3-one
-Muurolene 0.64 - 0.18 23 10.07 Naphthalene, 1,2,3,4,4a,5,6,8a-octahydro-7-methyl- 4-methylene-1-(1-methylethyl) 2.91 0.31 0.11 24 10.12 Menadione - - 0.12 25 10.23 Oxazol-5(4H)-one, 2-(3,4-methylenedioxyphenyl)-4- (4-nitrobenzylideno)- 0.61 0.09 0.06 26 10.29 Homovanillyl alcohol - 0.16 0.15 27 10.51 Phenol, 3,4,5-trimethoxy- - 0.25 0.16 28 10.66 Cyclohexane, 1-ethenyl-1-methyl-2- (1-methylethenyl)-4-(1-methylethylidene)- 0.51 0.55 0.10 29 10.85 1,3-Benzodioxole-5-carboxylic acid, methyl ester 0.45 - 0.05 30 10.95 4,6-Dimethoxysalicylaldehyde 2.67 0.11 0.03 31 11.05 Naphthalene, 1,2,3,5,6,7,8,8a-octahydro-1,8a- dimethyl-7-(1-methylethenyl)- 1.63 - - 32 11.10 2-Propenal, 3-(1,3-benzodioxol-5-yl)- 4.03 0.58 0.31 33 11.58 4-((1E)-3-Hydroxy-1-propenyl)-2-methoxyphenol 2.53 2.68 1.27 34 12.35 1H-Imidazole, 1-ethyl- 0.61 0.61 0.61 35 12.66 2-Methylisoborneol 0.67 0.28 0.12 36 12.85 Dibenzo-p-dioxin - 0.13 0.22 37 13.40 1,1'-Biphenyl, 3-(1,1-dimethylethoxy)- - - 0.40 38 13.58 Phthalic acid
It was shown that 27 same compounds were found in ethanol extractives of different provenances teak heartwood, the content was 86.61%, 84.92% and 91.46%, they were Mequinol, 1,2-benzenediol, 1(3H)-Isobenzofuranone, Vanillin, 1,4-Naphthalenedione, Naphthalene, 1,2,3,4,4a,5,6,8a-octahydro -7-methyl-4-methylene-1- (1- methylethyl), Cyclohexane, 1-ethenyl-1-methyl-2- (1-methylethenyl) -4-(1-methylethylidene)-, 4,6-Dimethoxysalicylaldehyde, 2-Propenal, 3-(1,3-benzodioxol-5-yl)-, 4-((1E)-3-Hydroxy-1 -propenyl)-2-methoxyphenol, 1H-Imidazole, 1-ethyl-, 2-Methylisoborneol, Phthalic acid, phenyl 2-pentyl ester, 1,4-Naphthalenedione, 2-hydroxy-3-(3-methyl-2-butenyl)-, [1,1'-Biphenyl]-2-ol, 5-(1,1-dimethylethyl)-, 9,10-Anthracenedione, 2-methyl-, 1-Hydroxy-4- methylanthraquinone, Indane-1,3-dione, 2-(3-hydroxyphenyl)- 2H-Benzopyran-2-one, 4-methyl-3- phenyl-, 9,10-Anthracenedione, 1,8-dihydroxy-2-methyl-, 2-(Hydroxymethyl) anthraquinone, 4H-1-Benzopyran-4-one, 3-hydroxy-2-phenyl-, Benzofuran-3-one
Online since: October 2011
Authors: Jing Liu, Nan Wang, Jian Guang Liu, Feng Lu, Na Xu
Determination of the odorous compounds in the source of drinking water by solid-phase microextraction and gas
chromatography-mass spectrometry
XU Na1,2,a, LIU Jing*1,b, LIU Jianguang1,a, Wang Nan3,c, LU Feng1,a
1 School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan,
Shandong, 250101, China
2 Fang-an Neighborhood Office, Fangzi District, Weifang, Shandong, 261200, China
3 Fangzi District People’s Hospital, Weifang, Shandong, 261200, China
act9305@126.com bliujing19691109@sdjzu.edu.cn cnanlengxie@163.com
Keywords: Solid-phase microextraction; Gas chromatography-mass spectrometry; Geosmin; 2-Methylisoborneol; The source of drinking water
Abstract: A simple, rapid, sensitive and high-efficiency method for determination of odorous com-
pounds such as 2-methylisobomeol (2-MIB) and trans-1,10-dimethyl-trans-9-decalol (Geosmin) in the source of drinking water was developed by solid-phase microextraction(SPME) followed by gas chromatography-mass spectrometry
Experimental Chemicals and reagents 2-Methylisoborneol (MIB) and geosmin (GSM) standard were obtained as an methanol solution at a concentration of 2μg/mL purchased from Inc (USA).
Experimental Chemicals and reagents 2-Methylisoborneol (MIB) and geosmin (GSM) standard were obtained as an methanol solution at a concentration of 2μg/mL purchased from Inc (USA).
Online since: October 2014
Authors: Fu Yi Cui, Peng Wang, Dong Mei Liu, Huan Wang
M. aeruginosa can also release the compounds 2-methylisoborneol (2-MIB) and geosmin, that affect the taste and odor of drinking water [8].
Grimm, Rapid analysis of geosmin and 2-methylisoborneol in water using solid phase micro extraction procedures, Water Res., 32 (1998) 2140-2146
Grimm, Rapid analysis of geosmin and 2-methylisoborneol in water using solid phase micro extraction procedures, Water Res., 32 (1998) 2140-2146
Online since: October 2011
Authors: Nai Zhi Zhao, Chang Tie Huang, Xin Chen
Biodegradation of 2-methylisoborneol by gravel sand filtration.
Online since: January 2012
Authors: Ling Liu, Yong Wang Liu, Zhen Jie Cheng, Bo Li, Shuang Liang, Xing Li, Yan Ling Yang, Gui Bai Li
Sun, Comparative study on the removal technologies of 2-methylisoborneol (MIB) in drinking water, J.
Determination of musty odorants, 2-methylisoborneol and geosmin, in environmental water by headspace solid-phase microextraction and gas chromatography-mass spectrometry[J].
Determination of musty odorants, 2-methylisoborneol and geosmin, in environmental water by headspace solid-phase microextraction and gas chromatography-mass spectrometry[J].
Online since: September 2011
Authors: Nai Zhi Zhao, Shi Yan, Chang Tie Huang
Biodegradation of 2-methylisoborneol by gravel sand filtration.