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Ji X, Liang J, Liu J, Shen J, Li Y, Wang Y, Jing C, Mabury SA, Liu R. Occurrence, Fate, Human Exposure, and Toxicity of Commercial Photoinitiators. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:11704-11717. [PMID: 37515552 DOI: 10.1021/acs.est.3c02857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/31/2023]
Abstract
Photoinitiators (PIs) are a family of anthropogenic chemicals used in polymerization systems that generate active substances to initiate polymerization reactions under certain radiations. Although polymerization is considered a green method, its wide application in various commercial products, such as UV-curable inks, paints, and varnishes, has led to ubiquitous environmental issues caused by PIs. In this study, we present an overview of the current knowledge on the environmental occurrence, human exposure, and toxicity of PIs and provide suggestions for future research based on numerous available studies. The residual concentrations of PIs in commercial products, such as food packaging materials, are at microgram per gram levels. The migration of PIs from food packaging materials to foodstuffs has been confirmed by more than 100 reports of food contamination caused by PIs. Furthermore, more than 20 PIs have been detected in water, sediment, sewage sludge, and indoor dust collected from Asia, the United States, and Europe. Human internal exposure was also confirmed by the detection of PIs in serum. In addition, PIs were present in human breast milk, indicating that breastfeeding is an exposure pathway for infants. Among the most available studies, benzophenone is the dominant congener detected in the environment and humans. Toxicity studies of PIs reveal multiple toxic end points, such as carcinogenicity and endocrine-disrupting effects. Future investigations should focus on synergistic/antagonistic toxicity effects caused by PIs coexposure and metabolism/transformation pathways of newly identified PIs. Furthermore, future research should aim to develop "greener" PIs with high efficiency, low migration, and low toxicity.
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Affiliation(s)
- Xiaomeng Ji
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Jiefeng Liang
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Jiale Liu
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Jie Shen
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yiling Li
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Yingjun Wang
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Chuanyong Jing
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Scott A Mabury
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto M5S 3H6, Ontario, Canada
| | - Runzeng Liu
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
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Yu C, Zhang J, Luo X, Zhang J. Metal organic framework/covalent organic framework composite for solid-phase microextraction of polycyclic aromatic hydrocarbons in milk samples. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Peng Y, Zhang J, Peng C, Bai F, Hou R, Cai H. Real-time and in situ monitoring of Irgacure 907 penetration into food plastic packaging through surface-enhanced Raman spectroscopy. Food Packag Shelf Life 2022. [DOI: 10.1016/j.fpsl.2022.100853] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Liang Q, Wang Z, Du W, Liu W, Cao J, Ren J, Lian W, Lu H, Li H. Determination of 18 photoinitiators in food paper packaging materials by FastPrep-based extraction combined with GC-MS. Food Chem 2022; 377:131980. [PMID: 34999461 DOI: 10.1016/j.foodchem.2021.131980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 12/28/2021] [Accepted: 12/28/2021] [Indexed: 11/25/2022]
Abstract
Extraction of photoinitiators (PIs) from food paper packages is difficult since they normally hide inside multiple ink layers. A one-step FastPrep-based extraction in combination with GC-MS was developed to simultaneously measure 18 PIs in food paper packaging materials. FastPrep-based extraction enabled direct and efficient release of PIs from raw paperboard in a minute without additional procedures. It was simple, high-throughput, consuming less solvent and not requiring heat or radiation. GC-MS using selected ion monitoring provided identification of PIs with high selectivity. The LODs and LOQs for 18 PIs ranged from 0.060 to 0.614 mg/kg, and 0.197-2.027 mg/kg, respectively. The method was successfully applied for various real samples, and the spiked recoveries using different real sample matrices ranged from 93.3% to 110.1%. The developed method can thus be used for the quality control of PI residues in paper packaging materials of food products.
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Affiliation(s)
- Qiuju Liang
- Technology Center of China Tobacco Hunan Industrial Co. Ltd, Changsha, Hunan 410007, China; College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Zhiguo Wang
- Technology Center of China Tobacco Hunan Industrial Co. Ltd, Changsha, Hunan 410007, China.
| | - Wen Du
- Technology Center of China Tobacco Hunan Industrial Co. Ltd, Changsha, Hunan 410007, China
| | - Wei Liu
- Technology Center of China Tobacco Hunan Industrial Co. Ltd, Changsha, Hunan 410007, China
| | - Jun Cao
- Technology Center of China Tobacco Hunan Industrial Co. Ltd, Changsha, Hunan 410007, China; College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Jianxin Ren
- Technology Center of China Tobacco Hunan Industrial Co. Ltd, Changsha, Hunan 410007, China
| | - Wenliu Lian
- Technology Center of China Tobacco Hunan Industrial Co. Ltd, Changsha, Hunan 410007, China
| | - Hongmei Lu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Hongli Li
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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Lago MA, Sendón R, Bustos J, Nieto MT, Paseiro Losada P, Rodríguez-Bernaldo de Quirós A. Migration Studies of Two Common Components of UV-curing Inks into Food Simulants. Molecules 2019; 24:molecules24193607. [PMID: 31591310 PMCID: PMC6804053 DOI: 10.3390/molecules24193607] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/25/2019] [Accepted: 10/04/2019] [Indexed: 11/16/2022] Open
Abstract
The Rapid Alert System for Food and Feed (RASFF) has reported many cases of different UV curing inks components in foodstuffs during the last few years. These contaminants reach foodstuffs mainly by set-off, their principal migration mechanism from the package. Under this premise, this work has tried to characterize the process of migration of two common UV ink components: a photoinitiator (4-Methylbenzophenone) and a coinitiator (Ethyl-4-(dimethylamino) benzoate), from the most common plastic material used in food packaging low-density polyethylene (LDPE) into six different food simulants. The migration kinetics tests were performed at four different common storage temperatures, obtaining the key migration parameters for both molecules: the coefficients of diffusion and partition. The migration process was highly dependent on the storage conditions, the photoinitiator properties and the pH of the foodstuff.
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Affiliation(s)
- Miguel A Lago
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Pharmacy, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Raquel Sendón
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Pharmacy, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Juana Bustos
- National Food Center, Spanish Agency of Food Safety and Nutrition, E-28220 Majadahonda, Spain.
| | - María T Nieto
- National Food Center, Spanish Agency of Food Safety and Nutrition, E-28220 Majadahonda, Spain.
| | - Perfecto Paseiro Losada
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Pharmacy, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Ana Rodríguez-Bernaldo de Quirós
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Pharmacy, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
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Pechancová R, Qiu C, Smuts J, Lemr K, Schug KA. Comparative study of ink photoinitiators in food packages using gas chromatography with vacuum ultraviolet detection and gas chromatography with mass spectrometry. J Sep Sci 2018; 42:556-565. [DOI: 10.1002/jssc.201800855] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/20/2018] [Accepted: 11/02/2018] [Indexed: 02/03/2023]
Affiliation(s)
- Radka Pechancová
- Regional Centre of Advanced Technologies and Materials; Faculty of Science; Department of Analytical Chemistry; Palacky University in Olomouc; Olomouc Czech Republic
| | - Changling Qiu
- Department of Chemistry & Biochemistry; The University of Texas at Arlington; Arlington TX USA
| | | | - Karel Lemr
- Regional Centre of Advanced Technologies and Materials; Faculty of Science; Department of Analytical Chemistry; Palacky University in Olomouc; Olomouc Czech Republic
| | - Kevin A. Schug
- Department of Chemistry & Biochemistry; The University of Texas at Arlington; Arlington TX USA
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