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Chen W, Zhao W, Wu L, Li J, Zhao H, Zhao Y, Song Y. Integrated post-acquisition data processing strategy for rapid steroid sulfate characterization in Toad gall-bladder. J Pharm Biomed Anal 2024; 240:115958. [PMID: 38198886 DOI: 10.1016/j.jpba.2023.115958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 12/20/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024]
Abstract
LC-MS serves as a workhorse for chemical profile characterization of Chinese medicinal materials (CMMs) attributing to the ability of measuring fruitful MS/MS spectral information. However, it is laborious to extract the information belonging to the compounds-of-interest from the massive data matrixes even employing those well-defined post-acquisition data processing strategies. Here, efforts were devoted to propose an integrated strategy allowing rapid chemical homologs-focused data filtering through integrating the fit-for-purpose existing strategies, such as molecular weight imprinting (MWI), diagnostic fragment ion filtering (DFIF), neutral loss filtering (NLF), and isotope pattern filtering (IPF). Homologs-focused chemical characterization of a precious CMM namely Toad gall-bladder (Chinese name: Chandan) that is rich of diverse effective steroid sulfates, particularly bufogenin sulfates, bile acid sulfates and bilichol sulfates, was employed as a proof-of-concept. Recombinant human SULT2A1-catalyzed in vitro metabolism was undertaken to generate eight bufogenin sulfates to facilitate summarizing MS/MS spectral behaviors. After in-house data library construction and MS1 and MS2 spectral acquisition, data filtering was conducted as follows: 1) MWI and IPF was utilized in combination to capture deprotonated molecular ions and the 34S isotopic ions for the sulfates of those reported steroids; 2) m/z 79.9568 (SO3-·) and 96.9596 (HSO4-) were applied to DFIF; and 3) SO3 (79.9568 Da) served as the feature to achieve NLF. Those captured MS/MS information subsequently participated in tentatively structural annotation through applying those empirical mass fragmentation rules. As a result, 71 compounds including 7 bufogenin sulfates, 17 bile acid sulfates, 13 bilichol sulfates and a C-23 steroid sulfate were detected from Toad gall-bladder and thereof, 39 ones received plausible identities assignment. Above all, the steroid sulfates in Toad gall-bladder were profiled in depth, and more importantly, the proposed strategy should be a meaningful option for, but not limited to, submetabolome characterization in CMMs.
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Affiliation(s)
- Wei Chen
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Wenhui Zhao
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Lijuan Wu
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Jun Li
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Haiyu Zhao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Yunfang Zhao
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Yuelin Song
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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2
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Zhang Y, Chen T, Chen D, Liang W, Lu X, Zhao C, Xu G. Suspect and nontarget screening of mycotoxins and their modified forms in wheat products based on ultrahigh-performance liquid chromatography-high resolution mass spectrometry. J Chromatogr A 2023; 1708:464370. [PMID: 37717452 DOI: 10.1016/j.chroma.2023.464370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/19/2023]
Abstract
Various forms of mycotoxins commonly exist in food and pose a significant risk to human health. Here a comprehensive suspect and nontarget screening strategy for both parent and modified mycotoxins was developed using ultrahigh-performance liquid chromatography-high resolution mass spectrometry (UHPLCHRMS). We constructed an in-house MS/MS database containing 82 mycotoxins in 8 categories. Then fragmentation characteristics of different classes of mycotoxins were rapidly extracted by a Python program "Fragmentation pattern screener (FPScreener)" and nontarget screening rules were determined by analyzing the frequencies and average intensities of fragmentation characteristics. Using the suspect and nontarget screening strategy, we successfully identified six parent mycotoxins and eight modified mycotoxins with different confidence levels in contaminated wheat and flour samples. This strategy enables screening of unknown parents and modified mycotoxins in food matrices with corresponding fragmentation characteristics.
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Affiliation(s)
- Yujie Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tiantian Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dawei Chen
- Food Safety Research Unit of Chinese Academy of Medical Science (2019RU014), NHC Key Lab of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing 100022, China
| | - Wenying Liang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Lu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; Liaoning Province Key Laboratory of Metabolomics, Dalian 116023, China
| | - Chunxia Zhao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; Liaoning Province Key Laboratory of Metabolomics, Dalian 116023, China.
| | - Guowang Xu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China; Liaoning Province Key Laboratory of Metabolomics, Dalian 116023, China.
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3
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You Y, Hu Q, Liu N, Xu C, Lu S, Xu T, Mao X. Metabolite Analysis of Alternaria Mycotoxins by LC-MS/MS and Multiple Tools. Molecules 2023; 28:molecules28073258. [PMID: 37050021 PMCID: PMC10096951 DOI: 10.3390/molecules28073258] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/14/2023] Open
Abstract
Alternaria fungi are widely distributed plant pathogens that invade crop products, causing significant economic damage. In addition, toxic secondary metabolites produced by the fungi can also endanger consumers. Many of these secondary metabolites are chemically characterized as mycotoxins. In this study, Q Exactive Orbitrap mass spectrometry was used for the non-targeted analysis of the metabolome of seven Alternaria isolates cultured on Potato Carrot Agar (PCA), Potato Dextrose Agar (PDA) and Potato Sucrose Agar (PSA) medium. Due to the difficulty of detecting modified toxins, an analytical strategy with multiple visual analysis tools was also used to determine the presence of sulfate conjugated toxins, as well as to visualize the molecular network of Alternaria toxins. The results show that PSA medium exhibits more advantageous properties for the culture of Alternaria, with more toxigenic species and quantities and more obvious metabolic pathways. Based on high-resolution tandem mass spectrometry (MS/MS) data, the mycotoxins and their metabolites were mainly clustered into four groups: alternariol (AOH)/alternariol monomethyl ether (AME)/altenusin (ALU)/altenuene (ALT)/dehydroaltenusin (DHA)/Desmethyldehydroaltenusin (DMDA) families, Altertoxin-I (ATX-I) family, tentoxin (TEN) family and tenuazonic acid (TeA) family. Moreover, the PSA medium is more suitable for the accumulation of AOH, AME, ALU, ALT, DHA and DMDA, while the PDA medium is more suitable for the accumulation of ATX-I, TEN and TeA. This research may provide theoretical support for the metabolomics study of Alternaria.
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Affiliation(s)
- Yanli You
- College of Life Science, Yantai University, Yantai 264005, China
| | - Qinghua Hu
- College of Life Science, Yantai University, Yantai 264005, China
| | - Nan Liu
- College of Life Science, Yantai University, Yantai 264005, China
| | - Cuiju Xu
- College of Life Science, Yantai University, Yantai 264005, China
| | - Sunan Lu
- College of Life Science, Yantai University, Yantai 264005, China
| | - Tongcheng Xu
- Institute of Food & Nutrition Science and Technology, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Xin Mao
- College of Life Science, Yantai University, Yantai 264005, China
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4
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Jaster-Keller J, Müller MEH, El-Khatib AH, Lorenz N, Bahlmann A, Mülow-Stollin U, Bunzel M, Scheibenzuber S, Rychlik M, von der Waydbrink G, Weigel S. Root uptake and metabolization of Alternaria toxins by winter wheat plants using a hydroponic system. Mycotoxin Res 2023; 39:109-126. [PMID: 36929507 PMCID: PMC10181980 DOI: 10.1007/s12550-023-00477-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 01/31/2023] [Accepted: 02/14/2023] [Indexed: 03/18/2023]
Abstract
Fungi of the genus Alternaria are ubiquitous in the environment. Their mycotoxins can leach out of contaminated plants or crop debris into the soil entering the plant via the roots. We aim to evaluate the importance of this entry pathway and its contribution to the overall content of Alternaria toxins (ATs) in wheat plants to better understand the soil-plant-phytopathogen system. A hydroponic cultivation system was established and wheat plants were cultivated for up to two weeks under optimal climate conditions. One half of the plants was treated with a nutrient solution spiked with alternariol (AOH), alternariol monomethyl ether (AME), and tenuazonic acid (TeA), whereas the other half of the plants was cultivated without mycotoxins. Plants were harvested after 1 and 2 weeks and analyzed using a QuEChERS-based extraction and an in-house validated LC-MS/MS method for quantification of the ATs in roots, crowns, and leaves separately. ATs were taken up by the roots and transported throughout the plant up to the leaves after 1 as well as 2 weeks of cultivation with the roots showing the highest ATs levels followed by the crowns and the leaves. In addition, numerous AOH and AME conjugates like glucosides, malonyl glucosides, sulfates, and di/trihexosides were detected in different plant compartments and identified by high-resolution mass spectrometry. This is the first study demonstrating the uptake of ATs in vivo using a hydroponic system and whole wheat plants examining both the distribution of ATs within the plant compartments and the modification of ATs by the wheat plants.
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Affiliation(s)
- Julia Jaster-Keller
- Department for Safety in the Food Chain, German Federal Institute for Risk Assessment (BfR), Max‑Dohrn‑Str. 8‑10, 10589, Berlin, Germany
| | - Marina E H Müller
- Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Ahmed H El-Khatib
- Department for Safety in the Food Chain, German Federal Institute for Risk Assessment (BfR), Max‑Dohrn‑Str. 8‑10, 10589, Berlin, Germany.
| | - Nicole Lorenz
- Department for Safety in the Food Chain, German Federal Institute for Risk Assessment (BfR), Max‑Dohrn‑Str. 8‑10, 10589, Berlin, Germany
| | - Arnold Bahlmann
- Department for Safety in the Food Chain, German Federal Institute for Risk Assessment (BfR), Max‑Dohrn‑Str. 8‑10, 10589, Berlin, Germany
| | - Ulrike Mülow-Stollin
- Department for Safety in the Food Chain, German Federal Institute for Risk Assessment (BfR), Max‑Dohrn‑Str. 8‑10, 10589, Berlin, Germany
- Current address: German Federal Office of Consumer Protection and Food Safety, Diedersdorfer Weg 1, 12277, Berlin, Germany
| | - Mirko Bunzel
- Department of Food Chemistry and Phytochemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), South Campus, Adenauerring 20 A, Karlsruhe, Germany
| | - Sophie Scheibenzuber
- Chair of Analytical Food Chemistry, Department of Life Science Engineering, Technical University of Munich (TUM), Maximus-von-Imhof Forum 2, 85354, Freising, Germany
| | - Michael Rychlik
- Chair of Analytical Food Chemistry, Department of Life Science Engineering, Technical University of Munich (TUM), Maximus-von-Imhof Forum 2, 85354, Freising, Germany
| | - Grit von der Waydbrink
- Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Stefan Weigel
- Department for Safety in the Food Chain, German Federal Institute for Risk Assessment (BfR), Max‑Dohrn‑Str. 8‑10, 10589, Berlin, Germany
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5
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Li Y, Shao Y, Zhu Y, Chen A, Qu J, Gao Y, Lu S, Luo P, Mao X. Temperature-dependent mycotoxins production investigation in Alternaria infected cherry by ultra-high performance liquid chromatography and Orbitrap high resolution mass spectrometry. Int J Food Microbiol 2023; 388:110070. [PMID: 36610234 DOI: 10.1016/j.ijfoodmicro.2022.110070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 12/12/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023]
Abstract
For temperature-dependent Alternaria mycotoxins production analysis, cherry samples were inoculated with Alternaria sp. and incubated at two different temperatures (4 °C and 25 °C). Six Alternaria mycotoxins, including altenuene (ALT), alternariol monomethyl ether (AME), alternariol (AOH), altertoxin-I (ATX-I), tenuazonic acid (TeA), and tentoxin (TEN), in cherries were detected with integrated visible data-processing tools. Maximum concentration of these mycotoxins reached 71,862.2 μg/kg at 25 °C. Notably, considerable amount of TeA (290.4 μg/kg) was detected at 4 °C, which indicated that low temperature is not a safe storage condition for fruits. A total of 102 compounds were detected with a neutral loss of 162.0528 Da, and TeA-glucose was identified in this work. Based on MS/MS cosine similarity, products were verified and annotated with feature based molecular networking (FBMN) in global natural products social networking (GNPS). The results showed Alternaria mycotoxins in cherry samples were mainly demethylation, hydrogenation, and dehydration. This work revealed the production of Alternaria mycotoxins in cherries under different storage temperature, which will provide theoretical basis for the control of mycotoxin contamination in food commodities.
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Affiliation(s)
- Yanshen Li
- Yantai University, Yantai, Shandong Province 264005, PR China
| | - Ying Shao
- Yantai University, Yantai, Shandong Province 264005, PR China
| | - Ya'ning Zhu
- Yantai University, Yantai, Shandong Province 264005, PR China
| | - Anqi Chen
- Yantai University, Yantai, Shandong Province 264005, PR China
| | - Jingyao Qu
- Yantai University, Yantai, Shandong Province 264005, PR China
| | - Yonglin Gao
- Yantai University, Yantai, Shandong Province 264005, PR China
| | - Sunan Lu
- Yantai University, Yantai, Shandong Province 264005, PR China
| | - Pengjie Luo
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit (2019RU014), China National Center for Food Safety Risk Assessment, Beijing 100017, PR China
| | - Xin Mao
- Yantai University, Yantai, Shandong Province 264005, PR China.
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6
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Kelman M, Renaud J, Baines D, Yeung KC, Miller J, Sumarah M. Mycotoxin determination in fungal contaminated Canadian silage toxic to dairy cows and goats. WORLD MYCOTOXIN J 2022. [DOI: 10.3920/wmj2021.2764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Silage has become a key component of year-long animal feed in Canada and parts of northern Europe. It provides several advantages to farmers over traditional feed components, such as increased digestibility, higher nutrient content and preservation of the forages to meet seasonal feeding demands. Some ensiled materials can contain toxic fungal metabolites resulting from ‘in field’ contamination. In addition, when improperly stored or exposed to air during the feedout stage, silage is highly susceptible to aerobic spoilage by yeasts and filamentous fungi resulting in lower nutrient value and further mycotoxin contamination. In this study, silage samples were collected from 25 Canadian dairy goat and cattle farms where animals experienced feed-related health issues. Twenty-six unique fungal species were isolated from these samples, with the majority being Penicillium. High resolution liquid chromatography tandem mass spectrometry (HRLC-MS/MS) was used to identify a total of 125 known mycotoxins and fungal secondary metabolites from these silage samples, many of which were not produced by the 26 isolated filamentous fungi grown in agar cultures. Various mycotoxins resulting from preharvest contamination were detected, including ergot alkaloids, fumonisins and trichothecenes, some in high concentrations. Toxins produced after harvest included roquefortine C, citrinin and penitrem A. This study reinforces the need for farmers to implement best management practices to minimise fungal contamination and the resulting mycotoxin deposition in their crop and stored feed to maintain animal health.
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Affiliation(s)
- M.J. Kelman
- London Research and Development Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, Ontario N5V 4T3, Canada
| | - J.B. Renaud
- London Research and Development Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, Ontario N5V 4T3, Canada
| | - D. Baines
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, 5403 1st Avenue South Lethbridge, Alberta T1J 4B1, Canada
| | - K.K.-C. Yeung
- Department of Chemistry, University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
- Department of Biochemistry, University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5C1, Canada
| | - J.D Miller
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada
| | - M.W. Sumarah
- London Research and Development Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, Ontario N5V 4T3, Canada
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7
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Mao X, Xia L, Yang L, You Y, Luo P, Li Y, Wu Y, Jiang G. Data mining of natural hazard biomarkers and metabolites with integrated metabolomic tools. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:127912. [PMID: 34862102 DOI: 10.1016/j.jhazmat.2021.127912] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/08/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
Data mining was one of the most important challenges in natural product analysis and biomarker discovery. In this work, we proposed an integrated data analysis protocol for natural products annotation and identification in data-dependent acquisition. Firstly, natural products and structure-related compounds could be identified by comparing mass spectrum behavior with commercial standard. Secondly, diagnostic fragmentation filtering (DFF) function in MZmine (http://mzmine.github.io/) was investigated for screening specific conjugation compounds with the same neutral loss. Thirdly, we present feature-based molecular networking (FBMN) in GNPS (https://gnps.ucsd.edu/) as a chromatographic feature detection and alignment tool. In addition, FBMN could enable natural products analysis based on molecular networks. This proposed integrated protocol should facilitate metabolomic data mining and biomarker discovery.
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Affiliation(s)
- Xin Mao
- Yantai University, Yantai, Shandong 264005, China
| | - Lining Xia
- Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China
| | - Li Yang
- Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China
| | - Yanli You
- Yantai University, Yantai, Shandong 264005, China
| | - Pengjie Luo
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit (2019RU014), China National Center for Food Safety Risk Assessment, Beijing 100017, China
| | - Yanshen Li
- Yantai University, Yantai, Shandong 264005, China.
| | - Yongning Wu
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit (2019RU014), China National Center for Food Safety Risk Assessment, Beijing 100017, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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8
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Aichinger G, Del Favero G, Warth B, Marko D. Alternaria toxins-Still emerging? Compr Rev Food Sci Food Saf 2021; 20:4390-4406. [PMID: 34323368 DOI: 10.1111/1541-4337.12803] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 06/18/2021] [Accepted: 06/19/2021] [Indexed: 12/13/2022]
Abstract
Alternaria molds are known to cause the contamination of food with their secondary metabolites, a chemically very heterogeneous group of compounds. Yet, after decades of research on the occurrence and the toxicity of Alternaria toxins in academia, no regulation has been implemented yet, thus leaving these potential food contaminants in the status of so-called "emerging mycotoxins". However, research on this topic has been far from static, leading to the European Food Safety Authority repeatedly calling for more data on the occurrence and toxicity of genotoxic metabolites such as alternariol (AOH) and its monomethyl ether (AME). To give an overview on recent developments in the field, this comprehensive review summarizes published data and addresses current challenges arising from the chemical complexity of Alternaria's metabolome, mixture effects and the emergence of novel biological targets like cell membranes or the interaction with different receptors. Besides toxicodynamics, we review recent research on toxicokinetics, including the first in vivo studies which incorporated the rarely investigated-but highly genotoxic-perylene quinones. Furthermore, a particular focus lies on the advances of liquid chromatography/tandem mass spectrometry (LC-MS/MS)-based analytical tools for determining a broader spectrum of Alternaria toxins including modified/masked forms and assessing exposure via human biomonitoring (HBM).
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Affiliation(s)
- Georg Aichinger
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Wien, Austria
| | - Giorgia Del Favero
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Wien, Austria
| | - Benedikt Warth
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Wien, Austria
| | - Doris Marko
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Wien, Austria
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9
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Chen A, Mao X, Sun Q, Wei Z, Li J, You Y, Zhao J, Jiang G, Wu Y, Wang L, Li Y. Alternaria Mycotoxins: An Overview of Toxicity, Metabolism, and Analysis in Food. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:7817-7830. [PMID: 34250809 DOI: 10.1021/acs.jafc.1c03007] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The genus Alternaria is widely distributed in the environment. Numerous species of the genus Alternaria can produce a variety of toxic secondary metabolites, called Alternaria mycotoxins. In this review, natural occurrence, toxicity, metabolism, and analytical methods are introduced. The contamination of these toxins in foodstuffs is ubiquitous, and most of these metabolites present genotoxic and cytotoxic effects. Moreover, Alternaria toxins are mainly hydroxylated to catechol metabolites and combined with sulfate and glucuronic acid in in vitro arrays. A more detailed summary of the metabolism of Alternaria toxins is presented in this work. To effectively detect and determine the mycotoxins in food, analytical methods with high sensitivity and good accuracy are also reviewed. This review will guide the formulation of maximum residue limit standards in the future, covering both toxicity and metabolic mechanism of Alternaria toxins.
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Affiliation(s)
- Anqi Chen
- College of Life Science, Yantai University, Yantai, Shandong 264005, People's Republic of China
| | - Xin Mao
- College of Life Science, Yantai University, Yantai, Shandong 264005, People's Republic of China
| | - Qinghui Sun
- College of Life Science, Yantai University, Yantai, Shandong 264005, People's Republic of China
| | - Zixuan Wei
- College of Life Science, Yantai University, Yantai, Shandong 264005, People's Republic of China
| | - Juan Li
- Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Yanli You
- College of Life Science, Yantai University, Yantai, Shandong 264005, People's Republic of China
| | - Jiqiang Zhao
- College of Life Science, Yantai University, Yantai, Shandong 264005, People's Republic of China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Yongning Wu
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit (2019RU014), China National Center for Food Safety Risk Assessment, Beijing 100017, People's Republic of China
| | - Liping Wang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, People's Republic of China
| | - Yanshen Li
- College of Life Science, Yantai University, Yantai, Shandong 264005, People's Republic of China
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10
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Zhang X, Qu J, Dai Z, Lin Y, Lu G, Yang S, You Y, Liu H, Wu Y, Jiang G, Li Y. Data-dependent acquisition based high-resolution mass spectrum for trace Alternaria mycotoxin analysis and sulfated metabolites identification. Food Chem 2021; 364:130450. [PMID: 34217943 DOI: 10.1016/j.foodchem.2021.130450] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/19/2021] [Accepted: 06/21/2021] [Indexed: 11/16/2022]
Abstract
Alternaria mycotoxins are food-related compounds that are mainly produced by Alternaria fungi species. However, it's difficult for Alternaria mycotoxins analysis, especially for conjugated metabolites in food safety surveillance. In this work, a novel data-dependent acquisition (DDA) full mass scan and products scan protocol was proposed for qualitative and quantitative analysis of five target mycotoxins in tomato samples using ultra-high-performance liquid chromatography coupled with quadrupole Orbitrap high-resolution mass spectrometry (UHPLC-Q-Orbitrap). In total, 24 sulfated metabolites were detected with post-data analysis techniques, and two sulfated metabolites (AME-sulfated and AOH-sulfated) were identified in Alternaria fungi -inoculated tomatoes. In addition, a custom database was established, and it was successfully applied for Alternaria mycotoxins and sulfated metabolites screening in tomatoes. With the improvement in high-resolution mass spectrometry (HRMS) as well as post-data analysis techniques, DDA based HRMS method could be widely applied for compound analysis, identification, and screening in quantitative field.
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Affiliation(s)
- Xiaoman Zhang
- College of Life Science, Yantai University, Yantai, Shandong 264005, PR China
| | - Jinyao Qu
- College of Life Science, Yantai University, Yantai, Shandong 264005, PR China
| | - Zhaoji Dai
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education and College of Plant Protection, Hainan University, Haikou 570100, PR China
| | - Yucheng Lin
- College of Life Science, Yantai University, Yantai, Shandong 264005, PR China
| | - Guozhu Lu
- College of Life Science, Yantai University, Yantai, Shandong 264005, PR China
| | - Shupeng Yang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Key Laboratory of Bee Products for Quality and Safety Control, Bee Product Quality Supervision and Testing Center, Ministry of Agriculture, Beijing 100093, PR China
| | - Yanli You
- College of Life Science, Yantai University, Yantai, Shandong 264005, PR China
| | - Huihui Liu
- Shandong Marine Resource and Environment Research Institute, Laboratory of Restoration for Marine Ecology, Yantai 264006, PR China
| | - Yongning Wu
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit (2019RU014), China National Center for Food Safety Risk Assessment, Beijing 100017, PR China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Yanshen Li
- College of Life Science, Yantai University, Yantai, Shandong 264005, PR China.
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11
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McDonald K, Renaud JB, Pick FR, Miller JD, Sumarah MW, McMullin DR. Diagnostic Fragmentation Filtering for Cyanopeptolin Detection. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:1087-1097. [PMID: 33238037 DOI: 10.1002/etc.4941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/25/2020] [Accepted: 11/20/2020] [Indexed: 06/11/2023]
Abstract
Cyanobacteria are ubiquitous photosynthetic prokaryotes that produce structurally diverse bioactive metabolites. Although microcystins are extensively studied, other cyanopeptides produced by common bloom-forming species have received little attention. Cyanopeptolins are a large cyanopeptide group that contain a characteristic 3-amino-6-hydroxy-2-piperidone (Ahp) moiety. In the present study we used diagnostic fragmentation filtering (DFF), a semitargeted liquid chromatography-tandem mass spectrometry (MS/MS) product ion filtering approach, to investigate cyanopeptolin diversity from 5 Microcystis strains and 4 bloom samples collected from lakes in Ontario and Quebec, Canada. Data processing by DFF was used to search MS/MS data sets for pairs of diagnostic product ions corresponding to cyanopeptolin partial sequences. For example, diagnostic product ions at m/z 150.0912 and 215.1183 identified cyanopeptolins with the NMe-Tyr-Phe-Ahp partial sequence. Forty-eight different cyanopeptolins, including 35 new variants, were detected from studied strains and bloom samples. Different cyanopeptolin profiles were identified from each sample. We detected a new compound, cyanopeptolin 1143, from a bloom and elucidated its planar structure from subsequent targeted MS/MS experiments. Diagnostic fragmentation filtering is a rapid, easy-to-perform postacquisition metabolomics strategy for inferring structural features and prioritizing new compounds for further study and dereplication. More work on cyanopeptolin occurrence and toxicity is needed because their concentrations in freshwater lakes after blooms can be similar to those of microcystins. Environ Toxicol Chem 2021;40:1087-1097. © 2020 SETAC.
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Affiliation(s)
| | - Justin B Renaud
- London Research and Development Center, Agriculture and Agri-Food Canada, London, Ontario, Canada
| | - Frances R Pick
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - J David Miller
- Department of Chemistry, Carleton University, Ottawa, Ontario, Canada
| | - Mark W Sumarah
- London Research and Development Center, Agriculture and Agri-Food Canada, London, Ontario, Canada
| | - David R McMullin
- Department of Chemistry, Carleton University, Ottawa, Ontario, Canada
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12
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Current role of modern chromatography and mass spectrometry in the analysis of mycotoxins in food. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116156] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Li Y, Qu J, Lin Y, Lu G, You Y, Jiang G, Wu Y. Visible Post-Data Analysis Protocol for Natural Mycotoxin Production. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:9603-9611. [PMID: 32786838 DOI: 10.1021/acs.jafc.0c03814] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fungal natural products are routinely analyzed using target detection protocols by comparing to commercial standards. However, discovery of new products suffers from a lack of high-throughput analytical techniques. Post-data process techniques have become popular tools for natural product confirmations and mycotoxin family analysis. In this work, a visible post-data process procedure with MZmine, GNPS, and Xcalibur was used for efficient analysis of high-resolution mass spectrometry. Conjugated products were screened with an optimized diagnostic fragmentation filtering module in MZmine and further confirmed with Xcalibur by comparing to unconjugated commercial standards. MS/MS spectral data were processed and used to establish a feature based on a molecular networking map in GNPS (Global Natural Products Social Molecular Networking; https://gnps.ucsd.edu), for visualization of fungal natural product families. The results demonstrate the potential of combining MZmine-, GNPS-, and Xcalibur-based methods for visible analysis of fungal natural products.
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Affiliation(s)
- Yanshen Li
- College of Life Science, Yantai University, Yantai, Shandong 264000, People's Republic of China
| | - Jinyao Qu
- College of Life Science, Yantai University, Yantai, Shandong 264000, People's Republic of China
| | - Yucheng Lin
- College of Life Science, Yantai University, Yantai, Shandong 264000, People's Republic of China
| | - Guozhu Lu
- College of Life Science, Yantai University, Yantai, Shandong 264000, People's Republic of China
| | - Yanli You
- College of Life Science, Yantai University, Yantai, Shandong 264000, People's Republic of China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Yongning Wu
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit (2019RU014), China National Center for Food Safety Risk Assessment, Beijing 100017, People's Republic of China
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Kelman MJ, Renaud JB, Seifert KA, Mack J, Yeung KKC, Sumarah MW. Chemotaxonomic Profiling of Canadian Alternaria Populations Using High-Resolution Mass Spectrometry. Metabolites 2020; 10:E238. [PMID: 32526912 PMCID: PMC7345142 DOI: 10.3390/metabo10060238] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/01/2020] [Accepted: 06/05/2020] [Indexed: 11/18/2022] Open
Abstract
Alternaria spp. occur as plant pathogens worldwide under field and storage conditions. They lead to food spoilage and also produce several classes of secondary metabolites that contaminate the food production chain. From a food safety perspective, the major challenge of assessing the risk of Alternaria contamination is the lack of a clear consensus on their species-level taxonomy. Furthermore, there are currently no reliable DNA sequencing methods to allow for differentiation of the toxigenic potential of these fungi. Our objective was to determine which species of Alternaria exist in Canada, and to describe the compounds they make. To address these issues, we performed metabolomic profiling using liquid chromatography high-resolution mass spectrometry (LC-HRMS) on 128 Canadian strains of Alternaria to determine their chemotaxonomy. The Alternaria strains were analyzed using principal component analysis (PCA) and unbiased k-means clustering to identify metabolites with significant differences (p < 0.001) between groups. Four populations or 'chemotypes' were identified within the strains studied, and several known secondary metabolites of Alternaria were identified as distinguishing metabolites, including tenuazonic acid, phomapyrones, and altenuene. Though species-level identifications could not be concluded for all groups through metabolomics alone, A. infectoria was able to be identified as a distinct population.
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Affiliation(s)
- Megan J. Kelman
- London Research and Development Center, Agriculture and Agri-Food Canada, London, ON N5V 4T3, Canada; (M.J.K.); (J.B.R.)
- Department of Chemistry, University of Western Ontario, London, ON N6A 5B7, Canada;
| | - Justin B. Renaud
- London Research and Development Center, Agriculture and Agri-Food Canada, London, ON N5V 4T3, Canada; (M.J.K.); (J.B.R.)
| | - Keith A. Seifert
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada; (K.A.S.); (J.M.)
| | - Jonathan Mack
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada; (K.A.S.); (J.M.)
| | - Ken K.-C. Yeung
- Department of Chemistry, University of Western Ontario, London, ON N6A 5B7, Canada;
- Department of Biochemistry, University of Western Ontario, London, ON N6A 5C1, Canada
| | - Mark W. Sumarah
- London Research and Development Center, Agriculture and Agri-Food Canada, London, ON N5V 4T3, Canada; (M.J.K.); (J.B.R.)
- Department of Chemistry, University of Western Ontario, London, ON N6A 5B7, Canada;
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Gotthardt M, Kanawati B, Schmidt F, Asam S, Hammerl R, Frank O, Hofmann T, Schmitt‐Kopplin P, Rychlik M. Comprehensive Analysis of the
Alternaria
Mycobolome Using Mass Spectrometry Based Metabolomics. Mol Nutr Food Res 2020; 64:e1900558. [DOI: 10.1002/mnfr.201900558] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/05/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Marina Gotthardt
- Chair of Analytical Food ChemistryTechnical University of Munich Maximus‐von‐Imhof Forum 2 85354 Freising Germany
| | - Basem Kanawati
- HelmholtzZentrum München Ingolstädter Landstraβe 1 85764 Neuherberg Germany
| | - Frank Schmidt
- Chair of Analytical Food ChemistryTechnical University of Munich Maximus‐von‐Imhof Forum 2 85354 Freising Germany
| | - Stefan Asam
- Chair of Analytical Food ChemistryTechnical University of Munich Maximus‐von‐Imhof Forum 2 85354 Freising Germany
| | - Richard Hammerl
- Chair of Food Chemistry and Molecular SensoryTechnical University of Munich Lise‐Meitner‐Straβe 34 85354 Freising Germany
| | - Oliver Frank
- Chair of Food Chemistry and Molecular SensoryTechnical University of Munich Lise‐Meitner‐Straβe 34 85354 Freising Germany
| | - Thomas Hofmann
- Chair of Food Chemistry and Molecular SensoryTechnical University of Munich Lise‐Meitner‐Straβe 34 85354 Freising Germany
| | - Philippe Schmitt‐Kopplin
- Chair of Analytical Food ChemistryTechnical University of Munich Maximus‐von‐Imhof Forum 2 85354 Freising Germany
- HelmholtzZentrum München Ingolstädter Landstraβe 1 85764 Neuherberg Germany
| | - Michael Rychlik
- Chair of Analytical Food ChemistryTechnical University of Munich Maximus‐von‐Imhof Forum 2 85354 Freising Germany
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16
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Walsh JP, Renaud JB, Hoogstra S, McMullin DR, Ibrahim A, Visagie CM, Tanney JB, Yeung KKC, Sumarah MW. Diagnostic fragmentation filtering for the discovery of new chaetoglobosins and cytochalasins. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2019; 33:133-139. [PMID: 30325552 DOI: 10.1002/rcm.8306] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/26/2018] [Accepted: 10/06/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE Microbial natural products are often biosynthesized as classes of structurally related compounds that have similar tandem mass spectrometry (MS/MS) fragmentation patterns. Mining MS/MS datasets for precursor ions that share diagnostic or common features enables entire chemical classes to be identified, including novel derivatives that have previously been unreported. Analytical data analysis tools that can facilitate a class-targeted approach to rapidly dereplicate known compounds and identify structural variants within complex matrices would be useful for the discovery of new natural products. METHODS A diagnostic fragmentation filtering (DFF) module was developed for MZmine to enable the efficient screening of MS/MS datasets for class-specific product ions(s) and/or neutral loss(es). This approach was applied to series of the structurally related chaetoglobosin and cytochalasin classes of compounds. These were identified from the culture filtrates of three fungal genera: Chaetomium globosum, a putative new species of Penicillium (called here P. cf. discolor: closely related to P. discolor), and Xylaria sp. Extracts were subjected to LC/MS/MS analysis under positive electrospray ionization and operating in a data-dependent acquisition mode, performed using a Thermo Q-Exactive mass spectrometer. All MS/MS datasets were processed using the DFF module and screened for diagnostic product ions at m/z 130.0648 and 185.0704 for chaetoglobosins, and m/z 120.0808 and 146.0598 for cytochalasins. RESULTS Extracts of C. globosum and P. cf. discolor strains revealed different mixtures of chaetoglobosins, whereas the Xylaria sp. produced only cytochalasins; none of the strains studied produced both classes of compounds. The dominant chaetoglobosins produced by both C. globosum and P. cf. discolor were chaetoglobosins A, C, and F. Tetrahydrochaetoglobosin A was identified from P. cf. discolor extracts and is reported here for the first time as a natural product. The major cytochalasins produced by the Xylaria sp. were cytochalasin D and epoxy cytochalasin D. A larger unknown "cytochalasin-like" molecule with the molecular formula C38 H47 NO10 was detected from Xylaria sp. culture filtrate extracts and is a current target for isolation and structural characterization. CONCLUSIONS DFF is an effective LC/MS data analysis approach for rapidly identifying entire classes of compounds from complex mixtures. DFF has proved useful in the identification of new natural products and allowing for their partial characterization without the need for isolation.
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Affiliation(s)
- Jacob P Walsh
- London Research and Development Center, Agriculture and Agri-Food Canada, London, ON, N5V 4T3, Canada
- Department of Chemistry, University of Western Ontario, London, ON, N6A 5B7, Canada
| | - Justin B Renaud
- London Research and Development Center, Agriculture and Agri-Food Canada, London, ON, N5V 4T3, Canada
| | - Shawn Hoogstra
- London Research and Development Center, Agriculture and Agri-Food Canada, London, ON, N5V 4T3, Canada
| | - David R McMullin
- Charlottetown Research and Development Centre, Agriculture and Agri-Food Canada, Charlottetown, PEI, C1A 4N6, Canada
| | - Ashraf Ibrahim
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON, Canada
| | - Cobus M Visagie
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON, K1A 0C6, Canada
- Biosystematics Division, ARC-Plant Health and Protection, P/BagX134, Queenswood 0121, Pretoria, South Africa
| | - Joey B Tanney
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON, K1A 0C6, Canada
| | - Ken K-C Yeung
- Department of Chemistry, University of Western Ontario, London, ON, N6A 5B7, Canada
- Department of Biochemistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Mark W Sumarah
- London Research and Development Center, Agriculture and Agri-Food Canada, London, ON, N5V 4T3, Canada
- Department of Chemistry, University of Western Ontario, London, ON, N6A 5B7, Canada
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17
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Weber J, Vaclavikova M, Wiesenberger G, Haider M, Hametner C, Fröhlich J, Berthiller F, Adam G, Mikula H, Fruhmann P. Chemical synthesis of culmorin metabolites and their biologic role in culmorin and acetyl-culmorin treated wheat cells. Org Biomol Chem 2018; 16:2043-2048. [PMID: 29465119 DOI: 10.1039/c7ob02460f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The Fusarium metabolite culmorin (1) is receiving increased attention as an "emerging mycotoxin". It co-occurs with trichothecene mycotoxins and potentially influences their toxicity. Its ecological role and fate in plants is unknown. We synthesized sulfated and glucosylated culmorin conjugates as potential metabolites, which are expected to be formed in planta, and used them as reference compounds. An efficient procedure for the synthesis of culmorin sulfates was developed. Diastereo- and regioselective glucosylation of culmorin (1) was achieved by exploiting or preventing unexpected acyl transfer when using different glucosyl donors. The treatment of a wheat suspension culture with culmorin (1) revealed an in planta conversion of culmorin into culmorin-8-glucoside (6) and culmorin acetate, but no sulfates or culmorin-11-glucoside (7) was found. The treatment of wheat cells with the fungal metabolite 11-acetylculmorin (2) revealed its rapid deacetylation, but also showed the formation of 11-acetylculmorin-8-glucoside (8). These results show that plants are capable of extensively metabolizing culmorin.
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Affiliation(s)
- Julia Weber
- Institute of Applied Synthetic Chemistry, Vienna University of Technology (TU Wien), Austria.
| | - Marta Vaclavikova
- Department of Agrobiotechnology (IFA-Tulln), Center for Analytical Chemistry, University of Natural Resources and Life Sciences, Vienna (BOKU), Austria
| | - Gerlinde Wiesenberger
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Maximilian Haider
- Institute of Applied Synthetic Chemistry, Vienna University of Technology (TU Wien), Austria.
| | - Christian Hametner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology (TU Wien), Austria.
| | - Johannes Fröhlich
- Institute of Applied Synthetic Chemistry, Vienna University of Technology (TU Wien), Austria.
| | - Franz Berthiller
- Department of Agrobiotechnology (IFA-Tulln), Center for Analytical Chemistry, University of Natural Resources and Life Sciences, Vienna (BOKU), Austria
| | - Gerhard Adam
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Hannes Mikula
- Institute of Applied Synthetic Chemistry, Vienna University of Technology (TU Wien), Austria.
| | - Philipp Fruhmann
- Institute of Applied Synthetic Chemistry, Vienna University of Technology (TU Wien), Austria. and Center for Electrochemical Surface Technology (CEST), Wiener Neustadt, Austria
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18
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Rapid Screening and Identification of Daidzein Metabolites in Rats Based on UHPLC-LTQ-Orbitrap Mass Spectrometry Coupled with Data-Mining Technologies. Molecules 2018; 23:molecules23010151. [PMID: 29329272 PMCID: PMC6017279 DOI: 10.3390/molecules23010151] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/03/2018] [Accepted: 01/05/2018] [Indexed: 01/31/2023] Open
Abstract
Daidzein, the main bioactive soy isoflavone in Nature, has been found to possess many biological functions. It has been investigated in particular as a phytoestrogen owing to the similarity of its structure with that of the human hormone estrogen. Due to the lack of comprehensive studies on daidzein metabolism, further research is still required to clarify its in vivo metabolic fate and intermediate processes. In this study, an efficient strategy was established using UHPLC-LTQ-Orbitrap mass spectrometry to profile the metabolism of daidzein in rats. Meanwhile, multiple data-mining methods including high-resolution extracted ion chromatogram (HREIC), multiple mass defect filtering (MMDF), neutral loss fragment (NLF), and diagnostic product ion (DPI) were utilized to investigate daidzein metabolites from the HR-ESI-MS1 to ESI-MSn stage in both positive and negative ion modes. Consequently, 59 metabolites, including prototype compounds, were positively or tentatively elucidated based on reference standards, accurate mass measurements, mass fragmentation behaviors, chromatographic retention times, and corresponding calculated ClogP values. As a result, dehydration, hydrogenation, methylation, dimethylation, glucuronidation, glucosylation, sulfonation, ring-cleavage, and their composite reactions were ascertained to interpret its in vivo biotransformation. Overall, our results not only revealed the potential pharmacodynamics forms of daidzein, but also aid in establishing a practical strategy for rapid screening and identifying metabolites of natural compounds.
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19
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Malachová A, Stránská M, Václavíková M, Elliott CT, Black C, Meneely J, Hajšlová J, Ezekiel CN, Schuhmacher R, Krska R. Advanced LC-MS-based methods to study the co-occurrence and metabolization of multiple mycotoxins in cereals and cereal-based food. Anal Bioanal Chem 2018; 410:801-825. [PMID: 29273904 PMCID: PMC5775372 DOI: 10.1007/s00216-017-0750-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/03/2017] [Accepted: 11/06/2017] [Indexed: 12/21/2022]
Abstract
Liquid chromatography (LC) coupled with mass spectrometry (MS) is widely used for the determination of mycotoxins in cereals and cereal-based products. In addition to the regulated mycotoxins, for which official control is required, LC-MS is often used for the screening of a large range of mycotoxins and/or for the identification and characterization of novel metabolites. This review provides insight into the LC-MS methods used for the determination of co-occurring mycotoxins with special emphasis on multiple-analyte applications. The first part of the review is focused on targeted LC-MS approaches using cleanup methods such as solid-phase extraction and immunoaffinity chromatography, as well as on methods based on minimum cleanup (quick, easy, cheap, effective, rugged, and safe; QuEChERS) and dilute and shoot. The second part of the review deals with the untargeted determination of mycotoxins by LC coupled with high-resolution MS, which includes also metabolomics techniques to study the fate of mycotoxins in plants.
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Affiliation(s)
- Alexandra Malachová
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria
| | - Milena Stránská
- Department of Food Analysis & Nutrition, Faculty of Food & Biochemical Technology, University of Chemistry & Technology, Technická 3, 166 28, Prague 6, Czech Republic
| | - Marta Václavíková
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria
| | - Christopher T Elliott
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, 18-30 Malone Road, Belfast, BT9 5BN, UK
| | - Connor Black
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, 18-30 Malone Road, Belfast, BT9 5BN, UK
| | - Julie Meneely
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, 18-30 Malone Road, Belfast, BT9 5BN, UK
| | - Jana Hajšlová
- Department of Food Analysis & Nutrition, Faculty of Food & Biochemical Technology, University of Chemistry & Technology, Technická 3, 166 28, Prague 6, Czech Republic
| | - Chibundu N Ezekiel
- Department of Microbiology, Babcock University, Ilishan Remo, Ogun State, 121103, Nigeria
| | - Rainer Schuhmacher
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria
| | - Rudolf Krska
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria.
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20
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Stypuła-Trębas S, Minta M, Radko L, Jedziniak P, Posyniak A. Nonsteroidal mycotoxin alternariol is a full androgen agonist in the yeast reporter androgen bioassay. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 55:208-211. [PMID: 28910742 DOI: 10.1016/j.etap.2017.08.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 08/22/2017] [Accepted: 08/24/2017] [Indexed: 06/07/2023]
Abstract
Alternariol (AOH) is a toxic metabolite of phytopathogenic fungi of the Alternaria spp. and important contaminant of agricultural commodities. According to the recent studies, AOH has a potential to modulate the endocrine system of humans and animals. In the view of these reports, our study addressed the effects of AOH on human estrogen receptor (hERα) and androgen receptor (hAR) signaling with the use of the yeast estrogen and androgen reporter bioassays. Our results show that, apart from a weak estrogenic response, AOH induces full androgenic response of the bioassay with the EC50 of 269.4μM. The androgenic potency of AOH relative to testosterone (T) is 0.046%. Moreover, in the presence of T, AOH at 5μM acts as a weak antiandrogen, whereas at higher concentrations AOH sum up with the androgenic activity of T in a dose-dependent manner, suggesting additive effect. To our knowledge it is the first report of the androgenic potency of natural, nonsteroidal substance and may have the impact on the direction of the further studies. Further research is warranted to clarify the role of AOH in disruption of AR signaling in humans and animals.
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Affiliation(s)
- Sylwia Stypuła-Trębas
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Al. Partyzantow 57, 24-100 Pulawy, Poland.
| | - Maria Minta
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Al. Partyzantow 57, 24-100 Pulawy, Poland
| | - Lidia Radko
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Al. Partyzantow 57, 24-100 Pulawy, Poland
| | - Piotr Jedziniak
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Al. Partyzantow 57, 24-100 Pulawy, Poland
| | - Andrzej Posyniak
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Al. Partyzantow 57, 24-100 Pulawy, Poland
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Renaud JB, Kelman MJ, McMullin DR, Yeung KKC, Sumarah MW. Application of C8 liquid chromatography-tandem mass spectrometry for the analysis of enniatins and bassianolides. J Chromatogr A 2017; 1508:65-72. [DOI: 10.1016/j.chroma.2017.05.070] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 05/29/2017] [Accepted: 05/31/2017] [Indexed: 01/28/2023]
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22
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Zwickel T, Kahl SM, Klaffke H, Rychlik M, Müller MEH. Spotlight on the Underdogs-An Analysis of Underrepresented Alternaria Mycotoxins Formed Depending on Varying Substrate, Time and Temperature Conditions. Toxins (Basel) 2016; 8:toxins8110344. [PMID: 27869760 PMCID: PMC5127140 DOI: 10.3390/toxins8110344] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 11/11/2016] [Accepted: 11/13/2016] [Indexed: 01/11/2023] Open
Abstract
Alternaria (A.) is a genus of widespread fungi capable of producing numerous, possibly health-endangering Alternaria toxins (ATs), which are usually not the focus of attention. The formation of ATs depends on the species and complex interactions of various environmental factors and is not fully understood. In this study the influence of temperature (7 °C, 25 °C), substrate (rice, wheat kernels) and incubation time (4, 7, and 14 days) on the production of thirteen ATs and three sulfoconjugated ATs by three different Alternaria isolates from the species groups A. tenuissima and A. infectoria was determined. High-performance liquid chromatography coupled with tandem mass spectrometry was used for quantification. Under nearly all conditions, tenuazonic acid was the most extensively produced toxin. At 25 °C and with increasing incubation time all toxins were formed in high amounts by the two A. tenuissima strains on both substrates with comparable mycotoxin profiles. However, for some of the toxins, stagnation or a decrease in production was observed from day 7 to 14. As opposed to the A. tenuissima strains, the A. infectoria strain only produced low amounts of ATs, but high concentrations of stemphyltoxin III. The results provide an essential insight into the quantitative in vitro AT formation under different environmental conditions, potentially transferable to different field and storage conditions.
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Affiliation(s)
- Theresa Zwickel
- Federal Institute for Risk Assessment (BfR), Max-Dohrn-Str 8-10, Berlin 10589, Germany.
- Technische Universität München, Chair of Analytical Food Chemistry, Alte Akademie 10, Freising 85354, Germany.
| | - Sandra M Kahl
- Leibniz-Centre for Agricultural Landscape Research (ZALF), Institute of Landscape Biogeochemistry, Eberswalder Str. 84, Müncheberg 15374, Germany.
- University of Potsdam, Maulbeerallee 1, Potsdam 14469, Germany.
| | - Horst Klaffke
- Federal Institute for Risk Assessment (BfR), Max-Dohrn-Str 8-10, Berlin 10589, Germany.
| | - Michael Rychlik
- Technische Universität München, Chair of Analytical Food Chemistry, Alte Akademie 10, Freising 85354, Germany.
| | - Marina E H Müller
- Leibniz-Centre for Agricultural Landscape Research (ZALF), Institute of Landscape Biogeochemistry, Eberswalder Str. 84, Müncheberg 15374, Germany.
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23
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Nontargeted diagnostic ion network analysis (NINA): A software to streamline the analytical workflow for untargeted characterization of natural medicines. J Pharm Biomed Anal 2016; 131:40-47. [PMID: 27521988 DOI: 10.1016/j.jpba.2016.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 07/27/2016] [Accepted: 08/04/2016] [Indexed: 12/13/2022]
Abstract
The characterization of herbal prescriptions serves as a foundation for quality control and regulation of herbal medicines. Previously, the characterization of herbal chemicals from natural medicines often relied on the analysis of signature fragment ions from the acquired tandem mass spectrometry (MS/MS) spectra with prior knowledge of the herbal species present in the herbal prescriptions of interest. Nevertheless, such an approach is often limited to target components, and it risks missing the critical components that we have no prior knowledge of. We previously reported a "diagnostic ion-guided network bridging" strategy. It is a generally applicable and robust approach to analyze unknown substances from complex mixtures in an untargeted manner. In this study, we have developed a standalone software named "Nontargeted Diagnostic Ion Network Analysis (NINA)" with a graphical user interface based on a strategy for post-acquisition data analysis. NINA allows one to rapidly determine the nontargeted diagnostic ions (NIs) by summarizing all of the fragment ions shared by the precursors from the acquired MS/MS spectra. A NI-guided network using bridging components that possess two or more NIs can then be established via NINA. With such a network, we could sequentially identify the structures of all the NIs once a single compound has been identified de novo. The structures of NIs can then be used as "priori" knowledge to narrow the candidates containing the sub-structure of the corresponding NI from the database hits. Subsequently, we applied the NINA software to the characterization of a model herbal prescription, Re-Du-Ning injection, and rapidly identified 56 herbal chemicals from the prescription using an ultra-performance liquid chromatography quadrupole time-of-flight system in the negative mode with no knowledge of the herbal species or herbal chemicals in the mixture. Therefore, we believe the applications of NINA will greatly facilitate the characterization of complex mixtures, such as natural medicines, especially when no advance information is available. In addition to herbal medicines, the NINA-based workflow will also benefit many other fields, such as environmental analysis, nutritional science, and forensic analysis.
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24
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Ghaste M, Mistrik R, Shulaev V. Applications of Fourier Transform Ion Cyclotron Resonance (FT-ICR) and Orbitrap Based High Resolution Mass Spectrometry in Metabolomics and Lipidomics. Int J Mol Sci 2016; 17:ijms17060816. [PMID: 27231903 PMCID: PMC4926350 DOI: 10.3390/ijms17060816] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 05/14/2016] [Accepted: 05/17/2016] [Indexed: 02/02/2023] Open
Abstract
Metabolomics, along with other "omics" approaches, is rapidly becoming one of the major approaches aimed at understanding the organization and dynamics of metabolic networks. Mass spectrometry is often a technique of choice for metabolomics studies due to its high sensitivity, reproducibility and wide dynamic range. High resolution mass spectrometry (HRMS) is a widely practiced technique in analytical and bioanalytical sciences. It offers exceptionally high resolution and the highest degree of structural confirmation. Many metabolomics studies have been conducted using HRMS over the past decade. In this review, we will explore the latest developments in Fourier transform mass spectrometry (FTMS) and Orbitrap based metabolomics technology, its advantages and drawbacks for using in metabolomics and lipidomics studies, and development of novel approaches for processing HRMS data.
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Affiliation(s)
- Manoj Ghaste
- Department of Biological Sciences, College of Arts and Sciences, University of North Texas, Denton, TX 76203, USA.
| | | | - Vladimir Shulaev
- Department of Biological Sciences, College of Arts and Sciences, University of North Texas, Denton, TX 76203, USA.
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25
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Data independent acquisition-digital archiving mass spectrometry: application to single kernel mycotoxin analysis of Fusarium graminearum infected maize. Anal Bioanal Chem 2016; 408:3083-91. [DOI: 10.1007/s00216-016-9391-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/25/2016] [Accepted: 02/02/2016] [Indexed: 10/22/2022]
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26
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Liu Y, Wu Y, Zhai R, Liu Z, Huang X, She Z. Altenusin derivatives from mangrove endophytic fungus Alternaria sp. SK6YW3L. RSC Adv 2016. [DOI: 10.1039/c6ra16214b] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Five new altenusin derivatives, compounds 1–5, along with six known analogues 6–11, were isolated from a culture of the endophytic fungus Alternaria sp. SK6YW3L, which was isolated from a fresh fruit of the mangrove plant Sonneratia caseolaris, collected from the South China Sea.
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Affiliation(s)
- Yayue Liu
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou 510275
- China
- College of Food Science and Technology
| | - Yingnan Wu
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Rui Zhai
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Zhaoming Liu
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Xishan Huang
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Zhigang She
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou 510275
- China
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center
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