1
|
Kourkopoulos A, Sijm DTHM, Vrolijk MF. Current approaches and challenges of sample preparation procedures for the safety assessment of paper and cardboard food contact materials: A comprehensive review. Compr Rev Food Sci Food Saf 2022; 21:4108-4129. [PMID: 35880303 DOI: 10.1111/1541-4337.13009] [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: 02/10/2022] [Revised: 06/14/2022] [Accepted: 06/29/2022] [Indexed: 01/28/2023]
Abstract
In the European Union (EU), Regulation (EC) 1935/2004 provides a harmonized legal EU framework and sets out the general principles for safety and inertness for all Food Contact Materials (FCMs) and Food Contact Articles. From a food safety point of view, however, specific EU legislation for paper and cardboard FCMs is lacking, while at Member State level, national legislation differs among countries. More than 11,000 chemicals have been identified in all types of FCMs, most of them without any information on toxicity or migration potential from FCM to food. The present review shows a wide variability of protocols, approaches, and conditions used in scientific studies, which are difficult to compare. In this regard, procedures and conditions laid down in EU legislation for plastics and European Standards (EN protocols) may serve as a good basis for the future sample preparation procedures in the framework of paper and cardboard FCMs safety assessment. Challenges on sample preparation procedures are presented involving the interlinked steps of sample preparation, conditions used and their impact in chemical analysis and in vitro bioassay testing. Currently, there is no general consensus on the criteria for structuring, evaluating, and tuning sample preparation procedures for paper and cardboard FCMs. For this purpose, a set of modified criteria and a decision tree are proposed based on the literature. Along this, mass transfer processes occurring in paper and cardboard FCMs and parameters affecting chemical migration need to be accounted for prior to reaching general consensus on criteria for sample preparation procedures.
Collapse
Affiliation(s)
- Athanasios Kourkopoulos
- Faculty of Health, Medicine and Life Sciences, Department of Pharmacology and Toxicology, Maastricht University, Maastricht, The Netherlands
| | - Dick T H M Sijm
- Faculty of Health, Medicine and Life Sciences, Department of Pharmacology and Toxicology, Maastricht University, Maastricht, The Netherlands.,Office for Risk Assessment and Research, Netherlands Food and Consumer Product Safety Authority (NVWA), Utrecht, The Netherlands
| | - Misha F Vrolijk
- Faculty of Health, Medicine and Life Sciences, Department of Pharmacology and Toxicology, Maastricht University, Maastricht, The Netherlands
| |
Collapse
|
2
|
Muncke J, Andersson AM, Backhaus T, Boucher JM, Carney Almroth B, Castillo Castillo A, Chevrier J, Demeneix BA, Emmanuel JA, Fini JB, Gee D, Geueke B, Groh K, Heindel JJ, Houlihan J, Kassotis CD, Kwiatkowski CF, Lefferts LY, Maffini MV, Martin OV, Myers JP, Nadal A, Nerin C, Pelch KE, Fernández SR, Sargis RM, Soto AM, Trasande L, Vandenberg LN, Wagner M, Wu C, Zoeller RT, Scheringer M. Impacts of food contact chemicals on human health: a consensus statement. Environ Health 2020; 19:25. [PMID: 32122363 PMCID: PMC7053054 DOI: 10.1186/s12940-020-0572-5] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 02/04/2020] [Indexed: 05/19/2023]
Abstract
Food packaging is of high societal value because it conserves and protects food, makes food transportable and conveys information to consumers. It is also relevant for marketing, which is of economic significance. Other types of food contact articles, such as storage containers, processing equipment and filling lines, are also important for food production and food supply. Food contact articles are made up of one or multiple different food contact materials and consist of food contact chemicals. However, food contact chemicals transfer from all types of food contact materials and articles into food and, consequently, are taken up by humans. Here we highlight topics of concern based on scientific findings showing that food contact materials and articles are a relevant exposure pathway for known hazardous substances as well as for a plethora of toxicologically uncharacterized chemicals, both intentionally and non-intentionally added. We describe areas of certainty, like the fact that chemicals migrate from food contact articles into food, and uncertainty, for example unidentified chemicals migrating into food. Current safety assessment of food contact chemicals is ineffective at protecting human health. In addition, society is striving for waste reduction with a focus on food packaging. As a result, solutions are being developed toward reuse, recycling or alternative (non-plastic) materials. However, the critical aspect of chemical safety is often ignored. Developing solutions for improving the safety of food contact chemicals and for tackling the circular economy must include current scientific knowledge. This cannot be done in isolation but must include all relevant experts and stakeholders. Therefore, we provide an overview of areas of concern and related activities that will improve the safety of food contact articles and support a circular economy. Our aim is to initiate a broader discussion involving scientists with relevant expertise but not currently working on food contact materials, and decision makers and influencers addressing single-use food packaging due to environmental concerns. Ultimately, we aim to support science-based decision making in the interest of improving public health. Notably, reducing exposure to hazardous food contact chemicals contributes to the prevention of associated chronic diseases in the human population.
Collapse
Affiliation(s)
- Jane Muncke
- Food Packaging Forum Foundation, Zurich, Switzerland.
| | - Anna-Maria Andersson
- Department of Growth and Reproduction, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Backhaus
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Justin M Boucher
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Zurich, Switzerland
| | - Bethanie Carney Almroth
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | | | - Jonathan Chevrier
- Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Barbara A Demeneix
- Department Adaptation du Vivant, Unité mixte de recherche 7221, CNRS (French National Research Center) and Muséum National d'Histoire Naturelle, Paris, France
| | - Jorge A Emmanuel
- Institute of Environmental & Marine Sciences, Silliman University, Dumaguete, Philippines
| | - Jean-Baptiste Fini
- Department Adaptation du Vivant, Unité mixte de recherche 7221, CNRS (French National Research Center) and Muséum National d'Histoire Naturelle, Paris, France
| | - David Gee
- Institute of Environment, Health and Societies, Brunel University, Uxbridge, UK
| | - Birgit Geueke
- Food Packaging Forum Foundation, Zurich, Switzerland
| | - Ksenia Groh
- Food Packaging Forum Foundation, Zurich, Switzerland
| | - Jerrold J Heindel
- Healthy Environment and Endocrine Disruptor Strategies, Commonweal, Bolinas, CA, USA
| | - Jane Houlihan
- Healthy Babies Bright Futures, Charlottesville, V.A., USA
| | | | | | - Lisa Y Lefferts
- Center for Science in the Public Interest, Washington, DC, USA
| | | | - Olwenn V Martin
- Institute for the Environment, Health and Societies, Brunel University London, Uxbridge, UK
| | - John Peterson Myers
- Environmental Health Sciences, Charlottesville, Virginia, USA
- Department of Chemistry, Carnegie, Mellon University, Pittsburgh, PA, USA
| | - Angel Nadal
- IDiBE and CIBERDEM, Universitas Miguel Hernandez, Elche, Spain
| | | | | | | | - Robert M Sargis
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Ana M Soto
- Department of Immunology, Tufts University School of Medicine, Boston, MA, USA
| | - Leonardo Trasande
- Department of Pediatrics, NYU Grossman School of Medicine, New York, NY, USA
| | - Laura N Vandenberg
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - Martin Wagner
- Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Changqing Wu
- Department of Animal and Food Sciences, University of Delaware, Newark, DE, USA
| | - R Thomas Zoeller
- Department of Biology, University of Massachusetts Amherst, Amherst, MA, USA
| | - Martin Scheringer
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Zurich, Switzerland
- RECETOX, Masaryk University, Brno, Czech Republic
| |
Collapse
|
3
|
Vicente-Carrillo A. The Usefulness of Sperm Kinematics in Drug-Induced Toxicity Assessment. Basic Clin Pharmacol Toxicol 2018; 123:3-7. [DOI: 10.1111/bcpt.12994] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 02/13/2018] [Indexed: 11/28/2022]
|
4
|
Food contact materials and gut health: Implications for toxicity assessment and relevance of high molecular weight migrants. Food Chem Toxicol 2017; 109:1-18. [PMID: 28830834 DOI: 10.1016/j.fct.2017.08.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/17/2017] [Accepted: 08/19/2017] [Indexed: 02/08/2023]
Abstract
Gut health is determined by an intact epithelial barrier and balanced gut microbiota, both involved in the regulation of immune responses in the gut. Disruption of this system contributes to the etiology of various non-communicable diseases, including intestinal, metabolic, and autoimmune disorders. Studies suggest that some direct food additives, but also some food contaminants, such as pesticide residues and substances migrating from food contact materials (FCMs), may adversely affect the gut barrier or gut microbiota. Here, we focus on gut-related effects of FCM-relevant substances (e.g. surfactants, N-ring containing substances, nanoparticles, and antimicrobials) and show that gut health is an underappreciated target in the toxicity assessment of FCMs. Understanding FCMs' impact on gut health requires more attention to ensure safety and prevent gut-related chronic diseases. Our review further points to the existence of large population subgroups with an increased intestinal permeability; this may lead to higher uptake of compounds of not only low (<1000 Da) but also high (>1000 Da) molecular weight. We discuss the potential toxicological relevance of high molecular weight compounds in the gut and suggest that the scientific justification for the application of a molecular weight-based cut-off in risk assessment of FCMs should be reevaluated.
Collapse
|
5
|
Groh KJ, Muncke J. In Vitro Toxicity Testing of Food Contact Materials: State-of-the-Art and Future Challenges. Compr Rev Food Sci Food Saf 2017; 16:1123-1150. [PMID: 33371616 DOI: 10.1111/1541-4337.12280] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/15/2017] [Accepted: 05/25/2017] [Indexed: 12/22/2022]
Abstract
Currently, toxicological testing of food contact materials (FCMs) is focused on single substances and their genotoxicity. However, people are exposed to mixtures of chemicals migrating from food contact articles (FCAs) into food, and toxic effects other than genotoxic damage may also be relevant. Since FCMs can be made of more than 8 thousand substances, assessing them one-by-one is very resource-consuming. Moreover, finished FCAs usually contain non-intentionally added substances (NIAS). NIAS toxicity can only be tested if a substance's chemical identity is known and if it is available as a pure chemical. Often, this is not the case. Nonetheless, regulations require safety assessments for all substances migrating from FCAs, including NIAS, hence new approaches to meet this legal obligation are needed. Testing the overall migrate or extract from an FCM/FCA is an option. Ideally, such an assessment would be performed by means of in vitro bioassays, as they are rapid and cost-effective. Here, we review the studies using in vitro bioassays to test toxicity of FCMs/FCAs. Three main categories of in vitro assays that have been applied include assays for cytotoxicity, genotoxicity, and endocrine disruption potential. In addition, we reviewed studies with small multicellular animal-based bioassays. Our overview shows that in vitro testing of FCMs is in principle feasible. We discuss future research needs and FCM-specific challenges. Sample preparation procedures need to be optimized and standardized. Further, the array of in vitro tests should be expanded to include those of highest relevance for the most prevalent human diseases of concern.
Collapse
Affiliation(s)
- Ksenia J Groh
- Food Packaging Forum Foundation, Staffelstrasse 8, CH-8045, Zürich, Switzerland
| | - Jane Muncke
- Food Packaging Forum Foundation, Staffelstrasse 8, CH-8045, Zürich, Switzerland
| |
Collapse
|
6
|
Severin I, Souton E, Dahbi L, Chagnon MC. Use of bioassays to assess hazard of food contact material extracts: State of the art. Food Chem Toxicol 2017; 105:429-447. [PMID: 28476634 DOI: 10.1016/j.fct.2017.04.046] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 04/10/2017] [Accepted: 04/29/2017] [Indexed: 01/17/2023]
Abstract
This review focuses on the use of in vitro bioassays for the hazard assessment of food contact materials (FCM) as a relevant strategy, in complement to analytical methods. FCM may transfer constituents to foods, not always detected by analytical chemistry, resulting in low but measurable human exposures. Testing FCM extracts with bioassays represents the biological response of a combination of substances, able to be released from the finished materials. Furthermore, this approach is particularly useful regarding the current risk assessment challenges with unpredicted/unidentified non-intentionally added substances (NIAS) that can be leached from the FCM in the food. Bioassays applied to assess hazard of different FCM types are described for, to date, the toxicological endpoints able to be expressed at low levels; cytotoxicity, genotoxicity and endocrine disruption potential. The bioassay strengths and relative key points needed to correctly use and improve the performance of bioassays for an additional FCM risk assessment is developed. This review compiles studies showing that combining both chemical and toxicological analyses presents a very promising and pragmatic tool for identifying new undesirable NIAS (not predicted) which can represent a great part of the migrating substances and/or "cocktail effect".
Collapse
Affiliation(s)
- Isabelle Severin
- Derttech « Packtox », University of Bourgogne Franche-Comté, INSERM LNC UMR 1231, AgroSupDijon, F-21000 Dijon, France
| | - Emilie Souton
- Derttech « Packtox », University of Bourgogne Franche-Comté, INSERM LNC UMR 1231, AgroSupDijon, F-21000 Dijon, France
| | - Laurence Dahbi
- Derttech « Packtox », University of Bourgogne Franche-Comté, INSERM LNC UMR 1231, AgroSupDijon, F-21000 Dijon, France
| | - Marie Christine Chagnon
- Derttech « Packtox », University of Bourgogne Franche-Comté, INSERM LNC UMR 1231, AgroSupDijon, F-21000 Dijon, France.
| |
Collapse
|
7
|
Biedermann-Brem S, Biedermann M, Grob K. Required barrier efficiency of internal bags against the migration from recycled paperboard packaging into food: a benchmark. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2016; 33:725-40. [PMID: 26936619 DOI: 10.1080/19440049.2016.1160744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The use of recycled paperboard and corrugated board for food packaging is in the interest of the sustainability of resources, but in most applications the food must be protected against contamination from these materials, such as by an internal bag with a functional barrier. Producers of packaging need a specification to find the most suitable and economical barrier for a given application, and the customer needs the confidence that a solution offered to him is adequate. An accurate determination of the barrier efficiency is not possible due to the large number of migrants, most of which have not been evaluated or not even identified. Hence the specification must be based on assumptions and verifiable by a simple test. The proposed benchmark presumes that the migration of all non-evaluated or even unknown substances in recycled paperboard will remain below 0.01 mg kg(-1) food, the conventional detection limit, if their transfer does not exceed 1% of the content in the paperboard. Some substances, such as mineral oil or fatty acids, will exceed the 0.01 mg kg(-1) limit, but they are known, evaluated and of no concern at the reduced migration. Since the critical substances must be assumed to be unknown, the criterion of the 1% migration is tested with three surrogate substances of similar volatility and covering a broad range of polarity. The cornerstones of the method are specified.
Collapse
Affiliation(s)
- Sandra Biedermann-Brem
- a Kantonales Labor Zürich (Official Food Control Authority of the Canton of Zurich) , Zurich , Switzerland
| | - Maurus Biedermann
- a Kantonales Labor Zürich (Official Food Control Authority of the Canton of Zurich) , Zurich , Switzerland
| | - Koni Grob
- a Kantonales Labor Zürich (Official Food Control Authority of the Canton of Zurich) , Zurich , Switzerland
| |
Collapse
|
8
|
Vicente-Carrillo A, Edebert I, Garside H, Cotgreave I, Rigler R, Loitto V, Magnusson KE, Rodríguez-Martínez H. Boar spermatozoa successfully predict mitochondrial modes of toxicity: implications for drug toxicity testing and the 3R principles. Toxicol In Vitro 2015; 29:582-91. [PMID: 25624015 DOI: 10.1016/j.tiv.2015.01.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 11/01/2014] [Accepted: 01/08/2015] [Indexed: 02/05/2023]
Abstract
Replacement of animal testing by in vitro methods (3-R principles) requires validation of suitable cell models, preferably obtained non-invasively, defying traditional use of explants. Ejaculated spermatozoa are highly dependent on mitochondrial production and consumption of ATP for their metabolism, including motility display, thus becoming a suitable model for capturing multiple modes of action of drugs and other chemicals acting via mitochondrial disturbance. In this study, a hypothesis was tested that the boar spermatozoon is a suitable cell type for toxicity assessment, providing a protocol for 3R-replacement of animals for research and drug-testing. Boar sperm kinetics was challenged with a wide variety of known frank mito-toxic chemicals with previously shown mitochondrial effects, using a semi-automated motility analyser allied with real-time fluorescent probing of mitochondrial potential (MitoTracker & JC-1). Output of this sperm assay (obtained after 30 min) was compared to cell viability (ATP-content, data obtained after 24-48 h) of a hepatome-cell line (HepG2). Results of compound effects significantly correlated (P<0.01) for all sperm variables and for most variables in (HepG2). Dose-dependent decreases of relative ATP content in HepG2 cells correlated to sperm speed (r=0.559) and proportions of motile (r=0.55) or progressively motile (r=0.53) spermatozoa. The significance of the study relies on the objectivity of computerized testing of sperm motility inhibition which is comparable albeit of faster output than somatic cell culture models. Sperm suspensions, easily and painlessly obtained from breeding boars, are confirmed as suitable biosensors for preclinical toxicology screening and ranking of lead compounds in the drug development processes.
Collapse
Affiliation(s)
- A Vicente-Carrillo
- Developmental Biology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - I Edebert
- Karlbergsvägen 83 B, Stockholm, Sweden
| | - H Garside
- Drug Safety and Metabolism, AstraZeneca Research and Development, Alderley Park, Macclesfield, Cheshire East SK10 4TG, United Kingdom
| | - I Cotgreave
- Swedish Toxicology Sciences Research Center (Swetox) and Department of Biochemical Toxicology, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - R Rigler
- Department of Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - V Loitto
- Medical Microbiology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - K E Magnusson
- Medical Microbiology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - H Rodríguez-Martínez
- Developmental Biology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
| |
Collapse
|
9
|
Castle L, Kelly J, Jickells SM, Johns SM, Mountfort KA. Exploring the sensitivity of the zone of inhibition test for leachable biocides from paper and board food contact materials, and improvements thereof. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2011; 29:139-48. [PMID: 22035169 DOI: 10.1080/19440049.2011.616951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
The zone of inhibition method to test the release of biocides from paper and board food contact materials was evaluated. The method tests the paper by placing a small specimen directly onto culture plates of Bacillus subtilis and Aspergillus niger. The principle is that any extractable biocide will diffuse from the paper into the surrounding nutrient medium and so inhibit growth of the microorganism in the vicinity. The test was found to have insufficient sensitivity for assuring food safety, where detection limits for migration at or below the mg l(-1) (parts per million) level are needed. Also, the test does not mimic the actual or foreseeable conditions of use since most paper/board materials are not intended for direct contact with an aqueous medium for up to 3 days at 30°C (B. subtilis) or 25°C (A. niger), which are the incubation conditions used. The sensitivity of the test was increased approximately 100-fold by preparing a concentrated extract of the paper to be tested and applying this extract to the assay via a blank paper carrier. This was done using methanol as a good solvent for most biocides, as a proof of principle. Other solvents or food simulants could be used to mimic the conditions of use intended for the particular paper/board samples under examination, e.g. contact with dry, fatty, aqueous or acidic foods, hot or cold. Twenty-four plain (unconverted) paper and board samples and 100 food packaging samples were evaluated using the modified procedure. The results revealed that the method has been developed to the stage where background cytotoxic action of normal paper constituents gives a weak response. Unlike the original method, therefore, the modified method with its improved sensitivity and the facility to link with the intended food contact conditions may be considered a suitable bioassay screening test to complement chemical analysis of paper/board for composition and migration.
Collapse
Affiliation(s)
- L Castle
- The Food and Environment Research Agency, Sand Hutton, York, UK.
| | | | | | | | | |
Collapse
|
10
|
|
11
|
|
12
|
Boar spermatozoa as a biosensor for detecting toxic substances in indoor dust and aerosols. Toxicol In Vitro 2010; 24:2041-52. [PMID: 20732404 DOI: 10.1016/j.tiv.2010.08.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Revised: 07/25/2010] [Accepted: 08/16/2010] [Indexed: 11/21/2022]
Abstract
The presence, quantity and origins of potentially toxic airborne substances were searched in moisture damaged indoor environments, where building related ill health symptoms were suspected and reference sites with no health complaints. Boar spermatozoa were used as the toxicity sensor. Indoor aerosols and dusts were collected from kindergartens, schools, offices and residences (n=25) by electrostatic filtering, vacuuming, wiping from elevated surfaces and from the interior of personal computers. Toxicity was measured from the ethanol or methanol extracts of the dusts and aerosols. EC(50) was expressed as the lowest concentration of the airborne substance that inhibited motility of >50% of the exposed sperm cells compared to vehicle control, within 30 min, 1 day or 3-4 days of exposure. Remarkably toxic aerosols (EC(50) <or=6 μg ml(-1)) were found from 11 sites, all of these were sites with known or suspected for building related ill health. Toxic microbial cultures were obtained from subsamples of the toxic aerosols/dusts. From these cereulide, amylosin, valinomycin and a novel indoor toxin, stephacidin B were identified and toxicities measured. Airborn dispersal of valinomycin from Streptomyces griseus cultures was evaluated using a flow-through chamber. Significant amounts of valinomycin (LC-MS assay) and toxicity (boar sperm motility assay) were carried by air and were after 14 days mainly recovered from the interior surfaces of the flow chamber.
Collapse
|
13
|
Honkalampi-Hämäläinen U, Bradley E, Castle L, Severin I, Dahbi L, Dahlman O, Lhuguenot JC, Andersson M, Hakulinen P, Hoornstra D, Mäki-Paakkanen J, Salkinoja-Salonen M, Turco L, Stammati A, Zucco F, Weber A, von Wright A. Safety evaluation of food contact paper and board using chemical tests and in vitro bioassays: role of known and unknown substances. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2010; 27:406-15. [DOI: 10.1080/19440040903401358] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
14
|
Bradley E, Stammati A, Salkinoja-Salonen M, Andersson M, Bertaud F, Hoornstra D, Zucco F, Weber A, Turco L, Traussnig H, Hakulinen P, Speck D, Von Wright A, Honkalampi-Hämäläinen U, Mäki-Paakkanen J, Severin I, Lhuguenot JC, Dahlman O. Test procedures for obtaining representative extracts suitable for reliablein vitrotoxicity assessment of paper and board intended for food contact. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2010; 27:262-71. [DOI: 10.1080/02652030903232746] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
15
|
Cabaton N, Dumont C, Severin I, Perdu E, Zalko D, Cherkaoui-Malki M, Chagnon MC. Genotoxic and endocrine activities of bis(hydroxyphenyl)methane (bisphenol F) and its derivatives in the HepG2 cell line. Toxicology 2009; 255:15-24. [DOI: 10.1016/j.tox.2008.09.024] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2008] [Revised: 08/29/2008] [Accepted: 09/22/2008] [Indexed: 10/21/2022]
|
16
|
The BIOSAFEPAPER project for in vitro toxicity assessments: Preparation, detailed chemical characterisation and testing of extracts from paper and board samples. Food Chem Toxicol 2008; 46:2498-509. [DOI: 10.1016/j.fct.2008.04.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2008] [Revised: 03/20/2008] [Accepted: 04/04/2008] [Indexed: 11/21/2022]
|
17
|
Andersson MA, Hakulinen P, Honkalampi-Hämäläinen U, Hoornstra D, Lhuguenot JC, Mäki-Paakkanen J, Savolainen M, Severin I, Stammati AL, Turco L, Weber A, von Wright A, Zucco F, Salkinoja-Salonen M. Toxicological profile of cereulide, the Bacillus cereus emetic toxin, in functional assays with human, animal and bacterial cells. Toxicon 2007; 49:351-67. [PMID: 17156808 DOI: 10.1016/j.toxicon.2006.10.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2005] [Revised: 10/20/2006] [Accepted: 10/23/2006] [Indexed: 11/27/2022]
Abstract
Some strains of the endospore-forming bacterium Bacillus cereus produce a heat-stable ionophoric peptide, cereulide, of high human toxicity. We assessed cell toxicity of cereulide by measuring the toxicities of crude extracts of cereulide producing and non-producing strains of B. cereus, and of pure cereulide, using cells of human, animal and bacterial origins. Hepatic cell lines and boar sperm, with cytotoxicity and sperm motility, respectively, as the end points, were inhibited by 1 nM of cereulide present as B. cereus extract. RNA synthesis and cell proliferation in HepG2 cells was inhibited by 2 nM of cereulide. These toxic effects were explainable by the action of cereulide as a high-affinity mobile K+ carrier. Exposure to cereulide containing extracts of B. cereus caused neither activation of CYP1A1 nor genotoxicity (comet assay, micronucleus test) at concentrations below those that were cytotoxic (0.6 nM cereulide). Salmonella typhimurium reverse mutation (Ames) test was negative. Exposure of Vibrio fischeri to extracts of B. cereus caused stimulated luminescence up to 600%, independent on the presence of cereulide, but purified cereulide inhibited the luminescence with an IC(50% (30 min)) of 170 nM. Thus the luminescence-stimulating B. cereus substance(s) masked the toxicity of cereulide in B. cereus extracts to V. fischeri.
Collapse
Affiliation(s)
- Maria A Andersson
- Department of Applied Chemistry and Microbiology, University of Helsinki, Biocenter, P.O. Box 56, Fi 00014 Helsinki University, Finland
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Jondeau A, Dahbi L, Bani-Estivals MH, Chagnon MC. Evaluation of the sensitivity of three sublethal cytotoxicity assays in human HepG2 cell line using water contaminants. Toxicology 2006; 226:218-28. [PMID: 16930799 DOI: 10.1016/j.tox.2006.07.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2006] [Revised: 07/03/2006] [Accepted: 07/04/2006] [Indexed: 10/24/2022]
Abstract
The in vitro toxicological index IC50 (the millimolar concentration of compound which inhibits response assay by 50% compared to the solvent control) of 11 water contaminants (acrylamide, atrazine, B[a]P, BPA, 2,4-DAT, 17-alphaEE, H(2)O(2), 4-OP, sodium bromate, sodium chlorate, sodium nitrate) was evaluated on the human hepatoma (HepG2) cells using three short-term bioassays related to their morbidity status [radiometric RNA synthesis assay (RNA), luminometric ATP assay (ATP), fluorometric Alamar blue assay (AB)]. Among all substances, we were not able to determine atrazine IC50 value whatever the test used. Furthermore, B[a]P was not cytotoxic in the ATP and AB assays. Statistical analysis revealed a correlation between the IC50 values obtained in the three assays. Except with 4-OP, RNA assay was always inhibited at lower concentrations than those required in the other assays, suggesting that this assay is a very sensitive indicator of the presence of toxic compounds. ATP and AB assays responded to a similar pattern. Due to its higher sensitivity and its reliability, RNA synthesis assay using HepG2 cell line provides the most suitable tool for the screening of water contaminants.
Collapse
Affiliation(s)
- Adeline Jondeau
- ENSBANA, UMR (1234) Toxicologie Alimentaire, 1 Esplanade Erasme, F-21000 Dijon, France.
| | | | | | | |
Collapse
|