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Alves Soares T, Caspers BA, Loos HM. Volatile organic compounds in preen oil and feathers - a review. Biol Rev Camb Philos Soc 2024; 99:1085-1099. [PMID: 38303487 DOI: 10.1111/brv.13059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/03/2024]
Abstract
For a long time birds were assumed to be anosmic or at best microsmatic, with olfaction a poorly understood and seldom investigated part of avian physiology. The full viability of avian olfaction was first discovered through its functions in navigation and foraging. Subsequently, researchers have investigated the role of olfaction in different social and non-social contexts, including reproduction, kin recognition, predator avoidance, navigation and foraging. In parallel to the recognition of the importance of olfaction for avian social behaviour, there have been advances in the techniques and methods available for the sampling and analysis of trace volatiles and odourants, leading to insights into the chemistry underlying chemical communication in birds. This review provides (i) an overview of the current state of knowledge regarding the volatile chemical composition of preen oil and feathers, its phylogenetic coverage, chemical signatures and their potential functions, and (ii) a discussion of current methods used for the isolation and detection of volatiles. Finally, lines for future research are proposed.
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Affiliation(s)
- Tatjana Alves Soares
- Chair of Aroma and Smell Research, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Henkestraße 9, Erlangen, 91054, Germany
| | - Barbara A Caspers
- Department of Behavioural Ecology, Bielefeld University, Konsequenz 45, Bielefeld, 33615, Germany
- Joint Institute for Individualisation in a Changing Environment (JICE), University of Münster and Bielefeld University, Bielefeld, Germany
| | - Helene M Loos
- Chair of Aroma and Smell Research, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Henkestraße 9, Erlangen, 91054, Germany
- Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Straße 35, Freising, 85354, Germany
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Tian L, Qu X, Huang D, Shi Y, Kong C, Wang Y. Determination of earthy-musty odors in tap water by gas chromatography‒mass spectrometry with silica solid-phase extraction. Heliyon 2023; 9:e21580. [PMID: 38027601 PMCID: PMC10643238 DOI: 10.1016/j.heliyon.2023.e21580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 10/22/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
This research aimed to develop an effective method for detecting semivolatile earthy-musty odors without using the conventional sample processing equipment used for volatile compounds. The concurrent isolation of 2-methylisoborneol (2-MIB), trans-1,10-dimethyl-trans-9-decalol (geosmin, GSM), 2-isopropyl-3-methoxy pyrazine (IPMP), and 2-isobutyl-3-methoxy pyrazine (IBMP) in tap water was successfully achieved by employing a combination of n-hexane liquid‒liquid extraction (LLE) and silica solid-phase extraction (SPE) techniques. Gas chromatography-mass spectrometry (GC-MS) was utilized for the identification of these targets, with the inclusion of borneol (BN) as an internal reference. This robust method was optimized and validated. It was found that the method showed good linearity in the range of 0.5-100 ng/mL and produced good recoveries (84.6 %-103 %) with satisfactory relative standard deviations (1.50 %-10.1 %). The determined limits of detection (LODs) for the group of four substances were found to vary from 0.3 to 0.9 ng/L, whereas the limits of quantitation (LOQs) exhibited variations between 1 and 3 ng/L. The subsequent implementation of this methodology to evaluate the four previously described off-flavor chemicals in tap water resulted in satisfactory results.
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Affiliation(s)
- Liangliang Tian
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, China
- Key Laboratory of Oceanic and Polar Fisheries, Ministry of Agriculture and Rural Affairs, China
| | - Xin Qu
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao, Shandong Province, 266033, China
| | - Dongmei Huang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, China
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, China
| | - Yongfu Shi
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, China
- Key Laboratory of Oceanic and Polar Fisheries, Ministry of Agriculture and Rural Affairs, China
| | - Cong Kong
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, China
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, China
| | - Yuan Wang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, China
- Key Laboratory of Oceanic and Polar Fisheries, Ministry of Agriculture and Rural Affairs, China
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Nam SH, Lee J, Kim E, Koo JW, Shin Y, Hwang TM. Electronic tongue for the simple and rapid determination of taste and odor compounds in water. CHEMOSPHERE 2023; 338:139511. [PMID: 37478991 DOI: 10.1016/j.chemosphere.2023.139511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/25/2023] [Accepted: 07/13/2023] [Indexed: 07/23/2023]
Abstract
Taste and odor (T&O) compounds present in natural water bodies could originate from algae. In this study, alga-generated compounds that can cause T&O issues in water, such as geosmin (GE), 2-Methylisoborneol (MIB), 2,4,6-Trichloroanisole (TCA), 2-Methylbenzofuran (MB), 2-Isopropyl-3-methoxypyrazine (IPMP), 2-Isobutyl-3-methoxypyrazine (IBMP), cis-3-Hexenyl acetate (HA), trans,trans-2,4-Heptadienal (HD), trans,cis-2,6-Nonadienal (ND), and trans-2-Decenal (DN), were determined through solid-phase microextraction coupled with gas chromatography/mass spectrometry (HS-SPME GC/MS) and electronic tongue (E-tongue), and the results from the two techniques were compared. Although HS-SPME GC/MS facilitates the detection and quantification of T&O compounds with high precision and accuracy, the sample preparation and handling is difficult and the analysis time (1 h) is longer than those of other analytical methods. E-tongue can be used as an alternative analytical method for water quality analysis and risk management because it enables controlled and rapid analysis (3 min) of T&O compounds in water at a low cost. Notably, principal component analysis indicated that E-tongue can discriminate and quantify eight T&O compounds at as low as 0.02 μg L-1 concentration. Further, partial least squares analysis confirmed that the sensor exhibits high sensitivity to concentration changes. The sensors with the highest variable importance in projection scores were determined to be SCS (1.39 and 1.38) for GE and MIB, CTS (1.34) for IPMP, CPS (1.33) for IBMP, AHS (1.42) for HA, ANS (1.22) for HD, and NMS (1.14 and 1.19) for ND and DN.
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Affiliation(s)
- Sook-Hyun Nam
- Korea Institute of Civil Engineering and Building Technology, 283 Goyangdar-Ro, Ilsan-Gu, Goyang-Si, Gyeonggi-Do, 411-712, Republic of Korea.
| | - Juwon Lee
- Korea Institute of Civil Engineering and Building Technology, 283 Goyangdar-Ro, Ilsan-Gu, Goyang-Si, Gyeonggi-Do, 411-712, Republic of Korea; Korea University of Science & Technology, 217 Gajung-to Yuseong-gu, Daejeon, 305-333, Republic of Korea
| | - Eunju Kim
- Korea Institute of Civil Engineering and Building Technology, 283 Goyangdar-Ro, Ilsan-Gu, Goyang-Si, Gyeonggi-Do, 411-712, Republic of Korea
| | - Jae-Wuk Koo
- Korea Institute of Civil Engineering and Building Technology, 283 Goyangdar-Ro, Ilsan-Gu, Goyang-Si, Gyeonggi-Do, 411-712, Republic of Korea
| | - Yonghyun Shin
- Korea Institute of Civil Engineering and Building Technology, 283 Goyangdar-Ro, Ilsan-Gu, Goyang-Si, Gyeonggi-Do, 411-712, Republic of Korea
| | - Tae-Mun Hwang
- Korea Institute of Civil Engineering and Building Technology, 283 Goyangdar-Ro, Ilsan-Gu, Goyang-Si, Gyeonggi-Do, 411-712, Republic of Korea; Korea University of Science & Technology, 217 Gajung-to Yuseong-gu, Daejeon, 305-333, Republic of Korea.
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Li XB, Hu CM, Li CH, Ji GY, Luo SZ, Cao Y, Ji KP, Tan Q, Bao DP, Shang JJ, Yang RH. LC/MS- and GC/MS-based metabolomic profiling to determine changes in flavor quality and bioactive components of Phlebopus portentosus under low-temperature storage. Front Nutr 2023; 10:1168025. [PMID: 37457983 PMCID: PMC10349180 DOI: 10.3389/fnut.2023.1168025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 06/12/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction Low temperature is the most common method used to maintain the freshness of Phlebopus portentosus during long-distance transportation. However, there is no information regarding the nutritional changes that occur in P. portentosus preserved postharvest in low temperature. Methods In this study, the changes in flavor quality and bioactive components in fruiting bodies stored at 4 °C for different storage periods were determined through LC/MS and GC/MS analyses. Sampling was performed at 0, 3, 5, 7, and 13 days storage. Results and Discussion Based on the results, the metabolites present in caps and stipes were different at the same period and significantly different after 7 days of storage. A total of 583 and 500 different metabolites were detected in caps and stipes, respectively, and were mainly lipids and lipid-like molecules, organic acids and derivatives, organic oxygen compounds and others. Except for prenol lipids and nucleotides, the expression levels of most metabolites increased with longer storage time. In addition, geosmin was identified as the major contributor to earthy-musty odors, and the level of geosmin was increased when the storage time was short. Conclusion The variations in these metabolites might cause changes in flavor quality and bioactive components in P. portentosus. Variations in these metabolites were thoroughly analyzed, and the results revealed how storage processes affect the postharvest quality of P. portentosus for the first time.
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Affiliation(s)
- Xiao-Bei Li
- Shanghai Academy of Agricultural Sciences, Shanghai, China
| | | | - Cai-Hong Li
- Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Guang-Yan Ji
- Hongzhen Agricultural Science and Technology Co. Ltd., Jinghong, China
| | - Shun-Zhen Luo
- Hongzhen Agricultural Science and Technology Co. Ltd., Jinghong, China
| | - Yang Cao
- Hongzhen Agricultural Science and Technology Co. Ltd., Jinghong, China
| | - Kai-Ping Ji
- Hongzhen Agricultural Science and Technology Co. Ltd., Jinghong, China
| | - Qi Tan
- Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Da-Peng Bao
- Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Jun-Jun Shang
- Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Rui-Heng Yang
- Shanghai Academy of Agricultural Sciences, Shanghai, China
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An automated micro solid phase extraction gas chromatography-mass spectrometry (μSPE-GC-MS) detection method for geosmin and 2-methylisoborneol in drinking water. Sci Rep 2023; 13:1768. [PMID: 36720961 PMCID: PMC9889310 DOI: 10.1038/s41598-023-28543-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 01/19/2023] [Indexed: 02/02/2023] Open
Abstract
Geosmin and 2-methylisoborneol (2-MIB) are amongst the most common earthy and musty taste and odour (T&O) compounds found in drinking water. With low odour threshold detection limits below 10 ng L-1, and the complexity of raw water matrices, these two compounds provide a significant challenge for water companies globally. In this research, for the first time, a novel and fully automated micro-solid phase-extraction (μSPE) method coupled with gas chromatography (GC)-mass spectrometry (MS) has been developed for the detection of geosmin and 2-MIB for drinking water analysis. The new automated method described herein is environmentally friendly requiring low raw water sample volumes, of 25 mL, and only 50 μL of elution solvent. Our μSPE-GC-MS method exhibits excellent linearity for both compounds (R2 > 0.999) and low limits of detection of 2.0 ng L-1 and 4.3 ng L-1 for geosmin and 2-MIB, respectively. The method showed excellent recovery rates (95.1-100.1%) and good precision (RSD < 7%) in raw sample matrices. Our approach is fully automated onto a robotic workstation which can be readily integrated into a laboratory workflow for routine water analysis. Furthermore, the method has excellent potential to be incorporated within a portable system for onsite analysis.
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Lejaegere C, Vercammen J, Verheyden L, Martens J. Online Solid-Phase Extraction–Gas Chromatography–Flame Ionization Detection System for Monitoring Contaminants at Parts-Per-Trillion Concentrations in Process Waters. LCGC EUROPE 2023. [DOI: 10.56530/lcgc.eu.eb6169h7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Online monitoring of odour and taste components that occur at parts-per-trillion (ppt) levels in industrial process waters requires specialized analytical hardware that is generally not compatible with the harsh environmental conditions in these typical industrial settings. An alternative instrumental method is proposed that uses dynamic extraction in combination with gas chromatography (GC) equipped with a simple flame ionization detector (FID) to achieve these extremely low detection limits. The extraction process was fully automated by means of online solid-phase extraction (SPE). The combination of online SPE and GC–FID was used to monitor the quality of process water contaminated with 2-methylisoborneol and geosmin, which are two notorious odour and taste components, in volumes up to 1 L.
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Zhu J, Stuetz RM, Hamilton L, Power K, Crosbie ND, Tamburic B. Management of biogenic taste and odour: From source water, through treatment processes and distribution systems, to consumers. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 323:116225. [PMID: 36115245 DOI: 10.1016/j.jenvman.2022.116225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
Biogenic taste and odour (T&O) have become a global concern for water utilities, due to the increasing frequency of algal blooms and other microbial events arising from the combined effects of climate change and eutrophication. Microbially-produced T&O compounds impact source waters, drinking water treatment plants, and drinking water distribution systems. It is important to manage across the entire biogenic T&O pathway to identify key risk factors and devise strategies that will safeguard the quality of drinking water in a changing world, since the presence of T&O impacts consumer confidence in drinking water safety. This study provides a critical review of current knowledge on T&O-causing microbes and compounds for proactive management, including the identification of abiotic risk factors in source waters, a discussion on the effectiveness of existing T&O barriers in drinking water treatment plants, an analysis of risk factors for biofilm growth in water distribution systems, and an assessment of the impacts of T&O on consumers. The fate of biogenic T&O in drinking water systems is tracked from microbial production pathways, through the release of intracellular T&O by cell lysis, to the treatment of microbial cells and dissolved T&O. Based on current knowledge, five impactful research and management directions across the T&O pathway are recommended.
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Affiliation(s)
- Jin Zhu
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Kensington, NSW, 2052, Australia
| | - Richard M Stuetz
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Kensington, NSW, 2052, Australia
| | | | - Kaye Power
- Sydney Water Corporation, Parramatta, NSW, 2150, Australia
| | - Nicholas D Crosbie
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Kensington, NSW, 2052, Australia; Melbourne Water Corporation, Docklands, VIC, 3008, Australia
| | - Bojan Tamburic
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Kensington, NSW, 2052, Australia.
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Nayeri D, Mousavi SA. A comprehensive review on the coagulant recovery and reuse from drinking water treatment sludge. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 319:115649. [PMID: 35834847 DOI: 10.1016/j.jenvman.2022.115649] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/01/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
The main treatment unit in conventional systems for surface water is coagulation-flocculation (CF) process, which consumes huge quantities of coagulant, and produces large volume of sludge. The produced sludge is known as one of the components of water treatment sludge (WTS), which is considered as a global issue and hot topic require careful attention from the plant operators and sludge managers to be managed sustainably with applying an ecofriendly method. Among the suggested technologies, recovery and reuse of coagulants from WTS show the potential to decrease the waste disposal and chemicals usage for drinking water treatment significantly. So, this comprehensive review provides a useful insight into environmental and health problems of WTS, reports the sources, physicochemical properties of sludge, describes different sludge management methods by more focus on coagulant recovery (CR), which significantly point out the different aspects of WTS recovery and reuse, and eventually, economic evaluation of the CR process was also discussed. The results of this review confirm that coagulants can be recovered from WTS by different methods and also will be reused for multiple times in the removal of pollutants from water and wastewater. Moreover, the recovered coagulants can be used as building and construction materials, constructed wetlands substrate and other aims.
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Affiliation(s)
- Danial Nayeri
- Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran; Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Seyyed Alireza Mousavi
- Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Tian LL, Han F, Fodjo EK, Zhai W, Huang XY, Kong C, Shi YF, Cai YQ. An Effective and Efficient Sample Preparation Method for 2-Methyl-Isoborneol and Geosmin in Fish and Their Analysis by Gas Chromatography-Mass Spectrometry. Int J Anal Chem 2021; 2021:9980212. [PMID: 34046066 PMCID: PMC8128619 DOI: 10.1155/2021/9980212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 04/26/2021] [Indexed: 11/17/2022] Open
Abstract
The intensive aquaculture strategy and recirculating aquaculture system often lead to the production of off-flavor compounds such as 2-methyl-isoborneol (2-MIB) and Geosmin (GSM). The regular purge and trap extraction followed by analysis with gas chromatography-mass spectrometry (GC-MS) usually involve a complicated assembly of facilities, more working space, long sample preparation time, and headspace solid-phase microextraction (SPME). In this work, a method with easier sample preparation, fewer and simplified facilities, and without SPME on GC-MS analysis is developed for the determination of 2-MIB and GSM in fish samples. Unlike previous methods, solvent extract from samples, QuEChERS-based cleanup, and solid-phase extraction for concentration are applied. The LOD (S/N > 3) and LOQ (S/N > 10) of this method were validated at 0.6 μg/kg and 1.0 μg/kg for both 2-MIB and GSM, which are under the sensory limit (1 μg/kg). Application of this method for incurred fish samples demonstrated acceptable analytical performance. This method is suitable for large-scale determination of 2-MIB and GSM in fish samples, owing to the use of simple facility and easy-to-operate procedure, rapid sample preparation, and shorter time for GC-MS analysis without SPME.
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Affiliation(s)
- Liang-liang Tian
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
| | - Feng Han
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
| | - Essy Kouadio Fodjo
- Laboratory of Constitution and Reaction of Matter, UFR SSMT, Université Felix Houphouet Boigny, 22 BP 582, Abidjan 22, Côte d'Ivoire
| | - Wenlei Zhai
- Beijing Research Center for Agricultural Standards and Testing, No. 9 Middle Road of Shuguanghuayuan, Haidian District, Beijing 100097, China
| | - Xuan-Yun Huang
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
| | - Cong Kong
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
| | - Yong-Fu Shi
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
| | - You-Qiong Cai
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
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Park SJ, Seo SE, Kim KH, Lee SH, Kim J, Ha S, Song HS, Lee SH, Kwon OS. Real-time monitoring of geosmin based on an aptamer-conjugated graphene field-effect transistor. Biosens Bioelectron 2021; 174:112804. [PMID: 33257183 DOI: 10.1016/j.bios.2020.112804] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/28/2020] [Accepted: 11/05/2020] [Indexed: 12/31/2022]
Abstract
In this paper, we propose a novel field-effect transistor (FET) using graphene, which is a two-dimensional (2D) nanomaterial, capable of evaluating water quality, and immobilizing the surface of a graphene micropatterned transistor with a highly responsive bioprobe for a water contamination indicator, geosmin, with high selectivity. A high-quality bioprobe-immobilized graphene FET (GFET) was fabricated for the real-time monitoring of geosmin using a liquid-gate measurement configuration. Immobilization was confirmed by measuring the change in the electrical characteristics of the platform (slope of the current-voltage (I-V) curve) and fluorescence images. In addition, a selectivity test showed remarkable implementation of the highly sensitive sensing platform with an insignificant signal when a nontarget was added. Using the fabricated device, the linear range for geosmin detection was determined to be from 0.01 nM - 1 μM with a detection limit of 0.01 nM. In addition, geosmin concentrations as low as 10 nM could be determined from river water samples with the sensor platform. This sensor can be utilized to immediately determine the presence of odorous substances by analyzing a water supply source without additional pretreatment. Another advantage is that the sensor device is a promising tool that does not have special equipment that requirs careful maintenance. In addition, the device provides a new platform for detecting harmful substances in various water sources by varying the bioprobes that are empolyed.
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Affiliation(s)
- Seon Joo Park
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Sung Eun Seo
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, South Korea; Department of Civil and Environmental Engineering, Yonsei University, Seoul, 03722, South Korea
| | - Kyung Ho Kim
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Sang Hun Lee
- Department of Chemical and Biological Engineering, Hanbat National University, Daejeon, 34158, South Korea
| | - Jinyeong Kim
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Siyoung Ha
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Hyun Seok Song
- Sensor System Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.
| | - Seung Hwan Lee
- Department of Bionano Engineering, Hanyang University, Ansan, 15588, Republic of Korea.
| | - Oh Seok Kwon
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, South Korea; Nanobiotechnology and Bioinformatics (Major), University of Science & Technology (UST), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, South Korea.
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11
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Devi A, Chiu YT, Hsueh HT, Lin TF. Quantitative PCR based detection system for cyanobacterial geosmin/2-methylisoborneol (2-MIB) events in drinking water sources: Current status and challenges. WATER RESEARCH 2021; 188:116478. [PMID: 33045635 DOI: 10.1016/j.watres.2020.116478] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 09/14/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
Taste and odor (T&O) are an important issue in drinking water, aquaculture, recreation and a few other associated industries, and cyanobacteria-relevant geosmin and 2-methylisoborneol (2-MIB) are the two most commonly detected T&O compounds worldwide. A rise in the cyanobacterial blooms and associated geosmin/2-MIB episodes due to anthropogenic activities as well as climate change has led to global concerns for drinking water quality. The increasing awareness for the safe drinking, aquaculture or recreational water systems has boost the demand for rapid, robust, on-site early detection and monitoring system for cyanobacterial geosmin/2-MIB events. In past years, research has indicated quantitative PCR (qPCR) as one of the promising tools for detection of geosmin/2-MIB episodes. It offers advantages of detecting the source organism even at very low concentrations, distinction of odor-producing cyanobacterial strains from non-producers and evaluation of odor producing potential of the cyanobacteria at much faster rates compared to conventional techniques.The present review aims at examining the current status of developed qPCR primers and probes in identifying and detecting the cyanobacterial blooms along with geosmin/2-MIB events. Among the more than 100 articles about cyanobacteria associated geosmin/2-MIB in drinking water systems published after 1990, limited reports (approx. 10 each for geosmin and 2-MIB) focused on qPCR detection and its application in the field. Based on the review of literature, a comprehensive open access global cyanobacterial geosmin/2-MIB events database (CyanoGM Explorer) is curated. It acts as a single platform to access updated information related to origin and geographical distribution of geosmin/2-MIB events, cyanobacterial producers, frequency, and techniques associated with the monitoring of the events. Although a total of 132 cyanobacterial strains from 21 genera and 72 cyanobacterial strains from 13 genera have been reported for geosmin and 2-MIB production, respectively, only 58 geosmin and 28 2-MIB synthesis regions have been assembled in the NCBI database. Based on the identity, geosmin sequences were found to be more diverse in the geosmin synthase conserved/primer design region, compared to 2-MIB synthesis region, hindering the design of universal primers/probes. Emerging technologies such as the bioelectronic nose, Surface Enhanced Raman Scattering (SERS), and nanopore sequencing are discussed for future applications in early on-site detection of geosmin/2-MIB and producers. In the end, the paper also highlights various challenges in applying qPCR as a universal system of monitoring and development of response system for geosmin/2-MIB episodes.
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Affiliation(s)
- Apramita Devi
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan ROC
| | - Yi-Ting Chiu
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan ROC
| | - Hsin-Ta Hsueh
- Sustainable Environment Research Laboratories, National Cheng Kung University, Tainan 70101, Taiwan ROC
| | - Tsair-Fuh Lin
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan ROC.
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12
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Radulović NS, Filipović SI, Nešić MS, Stojanović NM, Mitić KV, Mladenović MZ, Ranđelović VN. Immunomodulatory Constituents of Conocephalum conicum (Snake Liverwort) and the Relationship of Isolepidozenes to Germacranes and Humulanes. JOURNAL OF NATURAL PRODUCTS 2020; 83:3554-3563. [PMID: 33264011 DOI: 10.1021/acs.jnatprod.0c00585] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Structural elucidation of three new sesquiterpenoids, namely, (1Z,4E)-lepidoza-1(10),4-dien-14-ol (1), rel-(1(10)Z,4S,5E,7R)-germacra-1(10),6 diene-11,14-diol (2), and rel-(1(10)Z,4S,5E,7R)-humula-1(10),5-diene-7,14-diol (3), isolated from the liverwort Conocephalum conicum, was accomplished by a combination of extensive NMR experiments, 1H NMR simulation, and other means. Additionally, the change of the identity of bicyclogermacren-14-al, previously reported as a C. conicum constituent, to isolepidozen-14-al is proposed. Compounds 2 and 3 appear to be related to 1 via hydration involving a shared intermediate, a substituted cyclopropylmethyl cation, formed by a highly regio- and stereoselective protonation of 1, followed by a stereospecific fission of the three-membered ring. In other words, an isolepidozene derivative might be a branchpoint to humulanes and germacranes; this transformation could be of, up to now, unknown, biosynthetic and/or synthetic relevance. Multivariate statistical analysis of the compositional data of C. conicum extract constituents was used to probe the hypothesized biochemical relations. The immunomodulatory effect of 1-3 and conocephalenol (4) was evaluated in an in vitro model on both nonstimulated and mitogen-stimulated rat splenocytes. The compounds displayed varying degrees of cytotoxicity to nonstimulated splenocytes, whereas 2 and 3 were found to exert immunosuppressive effects on concanavalin A-stimulated splenocytes while not being cytotoxic at the same concentrations.
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Affiliation(s)
- Niko S Radulović
- Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Sonja I Filipović
- Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Milan S Nešić
- Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Nikola M Stojanović
- Department of Physiology, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
| | - Katarina V Mitić
- Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš, 18000 Niš, Serbia
| | - Marko Z Mladenović
- Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Vladimir N Ranđelović
- Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš, 18000 Niš, Serbia
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13
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Wang N, Chen S, Zhou Z. Age-dependent characterization of volatile organic compounds and age discrimination in Chinese rice wine using an untargeted GC/MS-based metabolomic approach. Food Chem 2020; 325:126900. [PMID: 32387958 DOI: 10.1016/j.foodchem.2020.126900] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 03/08/2020] [Accepted: 04/22/2020] [Indexed: 12/11/2022]
Abstract
An untargeted gas chromatography/mass spectrometry (GC/MS)-based metabolomics by XCMS-Online software combined with partial least squares regression (PLSR) was applied to characterize volatile organic compounds (VOCs) during Chinese rice wine aging and discriminate ages for the first time. Finally, seven different ages between 0 and 15 years were well discriminated by PLSR. Total 104 feature groups were isolated from all optimized candidate peaks, and 94 VOCs (including unknowns) were preliminarily identified as aging markers. Therein, alcohols, sulfides, phenols and their derivatives, small esters and acids exhibited significantly better discrimination of short-aged rice wines. Correspondingly, furans, aromatics, aldehydes, ketones, most esters and acids, discriminated the long-aged samples better. Meanwhile, the potential origins of certain VOCs were also proposed for further research. Overall, this untargeted GC/MS-based metabolomics coupled with PLSR was a feasible tool for a rapidly and globally age-dependent characterization of volatile metabolomic signals in Chinese rice wine and thus for age discrimination.
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Affiliation(s)
- Na Wang
- State Key Laboratory of Food Science & Technology, Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Shuang Chen
- State Key Laboratory of Food Science & Technology, Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Zhemin Zhou
- State Key Laboratory of Food Science & Technology, Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China.
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14
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Migliorini FL, Teodoro KBR, dos Santos DM, Fonseca FJ, Mattoso LHC, Correa DS. Electrospun nanofibers versus drop casting films for designing an electronic tongue: comparison of performance for monitoring geosmin and 2‐methylisoborneol in water samples. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4930] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fernanda L. Migliorini
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, São Carlos SP Brazil
| | - Kelcilene B. R. Teodoro
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, São Carlos SP Brazil
| | - Danilo M. dos Santos
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, São Carlos SP Brazil
| | - Fernando J. Fonseca
- Departamento de Engenharia de Sistemas Eletrônicos, Polytechnic School, University of São Paulo, São Paulo Brazil
| | - Luiz H. C. Mattoso
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, São Carlos SP Brazil
| | - Daniel S. Correa
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, São Carlos SP Brazil
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15
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Lvova L, Jahatspanian I, Mattoso LH, Correa DS, Oleneva E, Legin A, Di Natale C, Paolesse R. Potentiometric E-Tongue System for Geosmin/Isoborneol Presence Monitoring in Drinkable Water. SENSORS 2020; 20:s20030821. [PMID: 32033030 PMCID: PMC7038738 DOI: 10.3390/s20030821] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/25/2020] [Accepted: 01/29/2020] [Indexed: 11/16/2022]
Abstract
A potentiometric E-tongue system based on low-selective polymeric membrane and chalcogenide-glass electrodes is employed to monitor the taste-and-odor-causing pollutants, geosmin (GE) and 2-methyl-isoborneol (MIB), in drinkable water. The developed approach may permit a low-cost monitoring of these compounds in concentrations near the odor threshold concentrations (OTCs) of 20 ng/L. The experiments demonstrate the success of the E-tongue in combination with partial least squares (PLS) regression technique for the GE/MIB concentration prediction, showing also the possibility to discriminate tap water samples containing these compounds at two concentration levels: the same OTC order from 20 to 100 ng/L and at higher concentrations from 0.25 to 10 mg/L by means of PLS-discriminant analysis (DA) method. Based on the results, developed multisensory system can be considered a promising easy-to-handle tool for express evaluation of GE/MIB species and to provide a timely detection of alarm situations in case of extreme pollution before the drinkable water is delivered to end users.
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Affiliation(s)
- Larisa Lvova
- Department of Chemical Sciences and Technologies, University “Tor Vergata”, 00133 Rome, Italy;
- Laboratory of Artificial Sensory Systems, ITMO University, 197101 St. Petersburg, Russia; (I.J.); (E.O.); (A.L.); (C.D.N.)
- Correspondence: ; Tel.: +39-06-7259-4732
| | - Igor Jahatspanian
- Laboratory of Artificial Sensory Systems, ITMO University, 197101 St. Petersburg, Russia; (I.J.); (E.O.); (A.L.); (C.D.N.)
| | - Luiz H.C. Mattoso
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentation, Sao Carlos 13560-970, Brazil (D.S.C.)
| | - Daniel S. Correa
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentation, Sao Carlos 13560-970, Brazil (D.S.C.)
| | - Ekaterina Oleneva
- Laboratory of Artificial Sensory Systems, ITMO University, 197101 St. Petersburg, Russia; (I.J.); (E.O.); (A.L.); (C.D.N.)
| | - Andrey Legin
- Laboratory of Artificial Sensory Systems, ITMO University, 197101 St. Petersburg, Russia; (I.J.); (E.O.); (A.L.); (C.D.N.)
- Institute of Chemistry, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Corrado Di Natale
- Laboratory of Artificial Sensory Systems, ITMO University, 197101 St. Petersburg, Russia; (I.J.); (E.O.); (A.L.); (C.D.N.)
- Department of Electronic Engineering, University “Tor Vergata”, 00133 Rome, Italy
| | - Roberto Paolesse
- Department of Chemical Sciences and Technologies, University “Tor Vergata”, 00133 Rome, Italy;
- Laboratory of Artificial Sensory Systems, ITMO University, 197101 St. Petersburg, Russia; (I.J.); (E.O.); (A.L.); (C.D.N.)
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16
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Li C, Wang Y, Han J, Ni L. RETRACTED: Simple and sensitive molecularly imprinted polymer-MPA capped Mn-doped ZnS quantum dots-based phosphorescence probe for cyanotoxins determination in algae metabolites. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.136750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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A fluorescence-displacement assay using molecularly imprinted polymers for the visual, rapid, and sensitive detection of the algal metabolites, geosmin and 2-methylisoborneol. Anal Chim Acta 2019; 1066:121-130. [DOI: 10.1016/j.aca.2019.03.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 03/13/2019] [Accepted: 03/17/2019] [Indexed: 12/30/2022]
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