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Yang L, Yang L, Cai Y, Luo Y, Wang H, Wang L, Chen J, Liu X, Wu Y, Qin Y, Wu Z, Liu N. Natural mycotoxin contamination in dog food: A review on toxicity and detoxification methods. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 257:114948. [PMID: 37105098 DOI: 10.1016/j.ecoenv.2023.114948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/05/2023] [Accepted: 04/21/2023] [Indexed: 05/08/2023]
Abstract
Nowadays, the companion animals (dogs or other pets) are considered as members of the family and have established strong emotional relationships with their owners. Dogs are long lived compared to food animals, so safety, adequacy, and efficacy of dog food is of great importance for their health. Cereals, cereal by-products as well as feedstuffs of plant origin are commonly employed food resources in dry food, yet are potential ingredients for mycotoxins contamination, so dogs are theoretically more vulnerable to exposure when consumed daily. Aflatoxins (AF), deoxynivalenol (DON), fumonisins (FUM), ochratoxin A (OTA), and zearalenone (ZEA) are the most frequent mycotoxins that might present in dog food and cause toxicity on the growth and metabolism of dogs. An understanding of toxicological effects and detoxification methods (physical, chemical, or biological approaches) of mycotoxins will help to improve commercial ped food quality, reduce harm and minimize exposure to dogs. Herein, we outline a description of mycotoxins detected in dog food, toxicity and clinical findings in dogs, as well as methods applied in mycotoxins detoxification. This review aims to provide a reference for future studies involved in the evaluation of the risk, preventative strategies, and clear criteria of mycotoxins for minimizing exposure, reducing harm, and preventing mycotoxicosis in dog.
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Affiliation(s)
- Ling Yang
- Department of Food and Bioengineering, Beijing Vocational College of Agriculture, Beijing 102442, China
| | - Lihan Yang
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yuqing Cai
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yifei Luo
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Hui Wang
- Department of Food and Bioengineering, Beijing Vocational College of Agriculture, Beijing 102442, China
| | - Li Wang
- Department of Food and Bioengineering, Beijing Vocational College of Agriculture, Beijing 102442, China
| | - Jingqing Chen
- Laboratory Animal Center of the Academy of Military Medical Sciences, Beijing 100071, China
| | - Xiaoming Liu
- College of Animal Science and Technology, Shandong Agricultural University, China
| | - Yingjie Wu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yinghe Qin
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Zhenlong Wu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Ning Liu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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Kara K. Comparison of some mycotoxin concentration and prevalence in premium and economic class of adult dog foods. ITALIAN JOURNAL OF ANIMAL SCIENCE 2022. [DOI: 10.1080/1828051x.2022.2117105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Kanber Kara
- Faculty of Veterinary Medicine, Department of Animal Nutrition and Nutritional Diseases, Erciyes University, Kayseri, Turkey
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3
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Macías-Montes A, Rial-Berriel C, Acosta-Dacal A, Henríquez-Hernández LA, Almeida-González M, Rodríguez-Hernández Á, Zumbado M, Boada LD, Zaccaroni A, Luzardo OP. Risk assessment of the exposure to mycotoxins in dogs and cats through the consumption of commercial dry food. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 708:134592. [PMID: 31780144 DOI: 10.1016/j.scitotenv.2019.134592] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 09/13/2019] [Accepted: 09/20/2019] [Indexed: 06/10/2023]
Abstract
Dry feed for dogs and cats sold in Europe are mostly formulated with cereals and cereal by-products, so the contamination of this food with mycotoxins represents a potential risk for these pets. We analyzed a representation of the best-selling feed brands in Spain. The presence of Aflatoxins (B1, B2, G1, and G2), Ochratoxin A, T-2 and HT-2 toxins, Deoxynivalenol, Zearalenone, and Fumonisins (B1 and B2) was quantified, using immunoaffinity columns and LC-MS/MS. In general, mycotoxins were frequently and simultaneously (6-11) detected, with AFB1, FB1, FB2, Deoxynivalenol, and HT-2 detected in 100% of the samples. However, the concentrations of most of them are among the lowest reported so far. Fumonisins were the exception since we report the highest concentrations to date, particularly in cat feed. We practically found no significant differences in the level of mycotoxin contamination in relation to the presumed quality of the feed. We also calculated the daily exposure, and evaluated the acute and chronic health risk posed by these feeds. None of the brands analyzed presented acute risk for any of the mycotoxins. However, the high levels of fumonisins found in some samples could become problematic, if there are hidden forms of them. This is also evident in relation to long-term risk, since in the case of fumonisins the level of exposure exceeds the tolerable daily intake level in 3.5 and 12 times, for dogs and cats respectively. The exposure levels to zearalenone and deoxynivalenol could also be of long-term concern, especially considering the possibility that the continuous exposure to several mycotoxins simultaneously might produce potentiated toxic effects as a result of their synergistic action. Further research on the potential adverse health effects deriving from chronic exposure to low doses of multi-mycotoxin mixtures in pets is needed.
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Affiliation(s)
- Ana Macías-Montes
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain
| | - Cristian Rial-Berriel
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain
| | - Andrea Acosta-Dacal
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain
| | - Luis Alberto Henríquez-Hernández
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain; Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERObn), Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain
| | - Maira Almeida-González
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain
| | - Ángel Rodríguez-Hernández
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain
| | - Manuel Zumbado
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain; Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERObn), Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain
| | - Luis D Boada
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain; Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERObn), Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain
| | - Annalisa Zaccaroni
- Large Pelagic Vertebrate Group, Veterinary Faculty, University of Bologna, Viale Vespucci 2, Cesenatico, FC 47042, Italy
| | - Octavio P Luzardo
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain; Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERObn), Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain.
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4
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Grandi M, Vecchiato CG, Biagi G, Zironi E, Tondo MT, Pagliuca G, Palmonari A, Pinna C, Zaghini G, Gazzotti T. Occurrence of Mycotoxins in Extruded Commercial Cat Food. ACS OMEGA 2019; 4:14004-14012. [PMID: 31497718 PMCID: PMC6714290 DOI: 10.1021/acsomega.9b01702] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 06/26/2019] [Indexed: 05/13/2023]
Abstract
The occurrence of the most important mycotoxins (deoxynivalenol, fumonisin B1 and B2, aflatoxins B1, B2, G1, and G2, ochratoxin A, zearalenone, T-2, and HT-2 toxins) was determined in 64 extruded cat foods purchased in Italy through ultra-performance liquid chromatography coupled with tandem mass spectrometry. Deoxynivalenol and fumonisins were the most common contaminants (quantified in 80 and 95% of the samples, respectively). Conversely, aflatoxins B2, G1, and G2 were not identified in any sample. Some cat foods exceeded the regulatory limit for aflatoxin B1 (n = 3) or the guidance values for zearalenone (n = 3), fumonisins (n = 2), ochratoxin A (n = 1), and T-2 (n = 1) recently established for pets in the European Union. A widespread co-occurrence of mycotoxins was observed (28, 42, and 8% of the samples contained quantifiable amounts of two, three, and four mycotoxins, respectively). This study describes criticisms regarding the mycotoxin issue in pet food and suggests an improvement of the monitoring of the pet food chain.
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Affiliation(s)
- Monica Grandi
- Department of Veterinary Medical Sciences,
Alma Mater Studiorum, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano dell’Emilia
(BO), Italy
| | - Carla G. Vecchiato
- Department of Veterinary Medical Sciences,
Alma Mater Studiorum, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano dell’Emilia
(BO), Italy
| | - Giacomo Biagi
- Department of Veterinary Medical Sciences,
Alma Mater Studiorum, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano dell’Emilia
(BO), Italy
| | - Elisa Zironi
- Department of Veterinary Medical Sciences,
Alma Mater Studiorum, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano dell’Emilia
(BO), Italy
| | - Maria T. Tondo
- Department of Veterinary Medical Sciences,
Alma Mater Studiorum, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano dell’Emilia
(BO), Italy
| | - Giampiero Pagliuca
- Department of Veterinary Medical Sciences,
Alma Mater Studiorum, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano dell’Emilia
(BO), Italy
| | - Alberto Palmonari
- Department of Veterinary Medical Sciences,
Alma Mater Studiorum, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano dell’Emilia
(BO), Italy
| | - Carlo Pinna
- Department of Veterinary Medical Sciences,
Alma Mater Studiorum, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano dell’Emilia
(BO), Italy
| | - Giuliano Zaghini
- Department of Veterinary Medical Sciences,
Alma Mater Studiorum, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano dell’Emilia
(BO), Italy
| | - Teresa Gazzotti
- Department of Veterinary Medical Sciences,
Alma Mater Studiorum, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano dell’Emilia
(BO), Italy
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5
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Tegzes JH, Oakley BB, Brennan G. Comparison of mycotoxin concentrations in grain versus grain-free dry and wet commercial dog foods. TOXICOLOGY COMMUNICATIONS 2019. [DOI: 10.1080/24734306.2019.1648636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- John H. Tegzes
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, California, USA
| | - Brian B. Oakley
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, California, USA
| | - Greg Brennan
- Department of Medical Microbiology and Immunology, University of California, Davis, Davis, California, USA
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6
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Target Analysis and Retrospective Screening of Multiple Mycotoxins in Pet Food Using UHPLC-Q-Orbitrap HRMS. Toxins (Basel) 2019; 11:toxins11080434. [PMID: 31344880 PMCID: PMC6723864 DOI: 10.3390/toxins11080434] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/16/2019] [Accepted: 07/22/2019] [Indexed: 11/21/2022] Open
Abstract
A comprehensive strategy combining a quantitative method for 28 mycotoxins and a post-target screening for other 245 fungal and bacterial metabolites in dry pet food samples were developed using an acetonitrile-based extraction and an ultrahigh-performance liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS) method. The proposed method showed satisfactory validation results according to Commission Decision 2002/657/EC. Average recoveries from 72 to 108% were obtained for all studied mycotoxins, and the intra-/inter-day precision were below 9 and 14%, respectively. Results showed mycotoxin contamination in 99% of pet food samples (n = 89) at concentrations of up to hundreds µg/kg, with emerging Fusarium mycotoxins being the most commonly detected mycotoxins. All positive samples showed co-occurrence of mycotoxins with the simultaneous presence of up to 16 analytes per sample. In the retrospective screening, up to 54 fungal metabolites were tentatively identified being cyclopiazonic acid, paspalitrem A, fusaric acid, and macrosporin, the most commonly detected analytes.
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7
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Witaszak N, Stępień Ł, Bocianowski J, Waśkiewicz A. Fusarium Species and Mycotoxins Contaminating Veterinary Diets for Dogs and Cats. Microorganisms 2019; 7:microorganisms7010026. [PMID: 30669691 PMCID: PMC6352256 DOI: 10.3390/microorganisms7010026] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 01/15/2019] [Accepted: 01/18/2019] [Indexed: 12/30/2022] Open
Abstract
Veterinary diets are intended for diseased animals and may contain cereal grains, mainly maize and/or wheat. These, in turn, are often infected with pathogens of the Fusarium genus, which are able to produce numerous harmful mycotoxins. Forty-two samples of veterinary diets for dogs and cats were analyzed for the presence of Fusarium species and mycotoxins. Species were identified using molecular methods and the ergosterol and mycotoxins (fumonisin B1, deoxynivalenol, nivalenol and zearalenone) were quantified using HPLC methods. Two Fusarium species were identified: Fusarium proliferatum and Fusarium verticillioides. The highest concentrations of fumonisin B1, deoxynivalenol, nivalenol and zearalenone were 74.83, 2318.05, 190.90, and 45.84 ng/g, respectively. Only 9.5% of the samples were free from Fusarium mycotoxins. The acceptable limits of mycotoxin content in animal feed, specified by the EU regulations, were not exceeded in any of the samples tested. The mean mycotoxin content in veterinary diets for cats was lower than for dogs. Thus, it is recommended that veterinary diets are examined, since the mycotoxin contamination pose additional risk to animal health. The knowledge on Fusarium occurrence in veterinary diets is scarce and as far as we are aware this is the first report concerning the occurrence of Fusarium spp. and their important secondary metabolites—mycotoxins—in different types of veterinary diets for companion animals in Poland.
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Affiliation(s)
- Natalia Witaszak
- Department of Pathogen Genetics and Plant Resistance, Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, Poznań 60-479, Poland.
| | - Łukasz Stępień
- Department of Pathogen Genetics and Plant Resistance, Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, Poznań 60-479, Poland.
| | - Jan Bocianowski
- Department of Mathematical and Statistical Methods, Poznan University of Life Sciences, Wojska Polskiego 28, Poznań 60-637, Poland.
| | - Agnieszka Waśkiewicz
- Department of Chemistry, Poznan University of Life Sciences, Wojska Polskiego 75, Poznań 60-625, Poland.
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Bordini JG, Ono MA, Hirozawa MT, Garcia GT, Vizoni E, Ono EYS. Safety of Corn and Corn-Based Products Intended for Human Consumption Concerning Fumonisins from a Brazilian Processing Plant. Toxins (Basel) 2019; 11:E33. [PMID: 30634652 PMCID: PMC6356240 DOI: 10.3390/toxins11010033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 12/30/2018] [Accepted: 01/04/2019] [Indexed: 11/17/2022] Open
Abstract
Brazil is one of the world's largest corn producers and is a leader in exportation. Due to intense globalization, corn may be commercialized worldwide and the issue concerning the safety of corn-based products has become a topic of widespread international interest. Dietary exposure evaluation is a relevant criterion for mycotoxin risk assessment. Thus, human exposure to fumonisins were assessed for corn grain and its derivatives (endosperm, cornmeal, and grits; n = 320) sampled from one of the large-scale corn processing plants in Brazil. The total probable daily intake (PDI) for fumonisins in Brazil was 96.9 ng kg-1 body weight day-1, which corresponds to 5% of the provisional maximum tolerable daily intake (PMTDI) of 2000 ng kg-1 b.w. day-1 for fumonisins. In countries that import Brazilian corn, the total PDI is lower in European countries (from 35.7 to 177 ng kg-1 b.w. day-1) and higher in Angola (1553 ng kg-1 b.w. day-1). Taking into account that dietary exposure in populations in Brazil and importing countries was low, the corn-based products were safe for human consumption regarding fumonisins, even for regions with high corn consumption.
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Affiliation(s)
- Jaqueline Gozzi Bordini
- Department of Biochemistry and Biotechnology, State University of Londrina, P.O. Box 10.011, Londrina 86057-970, Paraná, Brazil.
| | - Mario Augusto Ono
- Department of Pathological Sciences, State University of Londrina, P.O. Box 10.011, Londrina 86057-970, Paraná, Brazil.
| | - Melissa Tiemi Hirozawa
- Department of Biochemistry and Biotechnology, State University of Londrina, P.O. Box 10.011, Londrina 86057-970, Paraná, Brazil.
| | | | - Edio Vizoni
- Department of Statistics, State University of Londrina, P.O. Box 10.011, Londrina 86057-970, Paraná, Brazil.
| | - Elisabete Yurie Sataque Ono
- Department of Biochemistry and Biotechnology, State University of Londrina, P.O. Box 10.011, Londrina 86057-970, Paraná, Brazil.
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Shao M, Li L, Gu Z, Yao M, Xu D, Fan W, Yan L, Song S. Mycotoxins in commercial dry pet food in China. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2018; 11:237-245. [DOI: 10.1080/19393210.2018.1475425] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Manyu Shao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Li Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Zuli Gu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Ming Yao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Danning Xu
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Wentao Fan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Liping Yan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Suquan Song
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
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Singh SD, Sheik Abdul N, Phulukdaree A, Tiloke C, Nagiah S, Baijnath S, Chuturgoon AA. Toxicity assessment of mycotoxins extracted from contaminated commercial dog pelleted feed on canine blood mononuclear cells. Food Chem Toxicol 2018; 114:112-118. [PMID: 29452190 DOI: 10.1016/j.fct.2018.02.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 02/07/2018] [Accepted: 02/08/2018] [Indexed: 12/31/2022]
Abstract
Raw ingredients of pet food are often contaminated with mycotoxins. This is a serious health problem to pets and causes emotional and economical stress to the pet owners. The aim of this study was to determine the immunotoxicity of the most common mycotoxins (aflatoxin, fumonisin, ochratoxin A and zearalenone) by examining 20 samples of extruded dry dog food found on the South African market [10 samples from standard grocery store lines (SB), 10 from premium veterinarian lines (PB)]. Pelleted dog food was subjected to extraction protocols optimized for the above mentioned mycotoxins. Dog lymphocytes were treated with the extracts (24 h incubation and final concentration 40 μg/ml) to determine cell viability, mitochondrial function, oxidative stress, and markers of cell death using spectrophotometry, luminometry and flow cytometry. Malondialdehyde, a marker of oxidative stress showed no significant difference between SB and PB, however, GSH was significantly depleted in SB extract treatments. Markers of apoptosis (phosphatidylserine externalization) and necrosis (propidium iodide incorporation) were elevated in both food lines when compared to untreated control cells, interestingly SB extracts were significantly higher than PB. We also observed decreased ATP levels and increased mitochondrial depolarization in cells treated with both lines of feed with SB showing the greatest differences when compared to the control. This study provides evidence that irrespective of price, quality or marketing channels, pet foods present a high risk of mycotoxin contamination. Though in this study PB fared better than SB in regards to cell toxicity, there is a multitude of other factors that need to be studied which may have an influence on other negative outcomes.
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Affiliation(s)
- Sanil D Singh
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa.
| | - Naeem Sheik Abdul
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa.
| | - Alisa Phulukdaree
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa.
| | - Charlette Tiloke
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa.
| | - Savania Nagiah
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa.
| | - Sooraj Baijnath
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa.
| | - Anil A Chuturgoon
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa.
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11
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Teixeira E, Frehse M, Freire R, Ono M, Bordini J, Hirozawa M, Ono E. Safety of low and high cost dry feed intended for dogs in Brazil concerning fumonisins, zearalenone and aflatoxins. WORLD MYCOTOXIN J 2017. [DOI: 10.3920/wmj2016.2166] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The Brazilian pet sector exportation has been growing at an impressive rate lately. Considering the intense globalisation, pet food may be commercialised worldwide and the issue concerning safety of dry dog feed has become a topic of widespread international interest. Therefore, the objectives of this study were to evaluate the safety of low and high cost dry feed and the degree of exposure of dogs to mycotoxins through naturally contaminated feed in Brazil. In addition, the safe pet dietary level (SPDL) was calculated. Fumonisins, zearalenone (ZEA) and aflatoxins were analysed in three feed types intended for dogs (n=87), provided by pet owners. Mean fumonisin levels were 272 µg/kg (Standard), 78.2 µg/kg (Premium), and 186 µg/kg (Super Premium) while ZEA mean levels were 52.6 µg/kg (Standard), 10.6 µg/kg (Premium) and 17.5 µg/kg (Super Premium). Mean total aflatoxin levels (aflatoxin B1 + B2 + G1 + G2) in Standard, Premium and Super Premium feed were 1.29 µg/kg, 0.49 µg/kg and 0.53 µg/kg, respectively. The estimated daily intake (EDI) values for fumonisin B1 were 1.41 (Standard), 1.60 (Premium) and 0.93 µg/kg body weight (BW)/day (Super Premium feed), whereas for ZEA they were 0.54 (Standard), 0.37 (Premium) and 0.42 µg/kg BW/day (Super Premium feed). SPDL for fumonisins and ZEA was 2,000 and 375 µg/kg feed, respectively. EDI values for aflatoxin B1 were 13.0 (Standard), 14.0 (Premium) and 11.0 ng/kg BW/day (Super Premium feed). Although the feed samples intended for dogs in Brazil were often contaminated with aflatoxins, fumonisins and ZEA, the estimated daily intake values were low, even for the low cost formulations. However, it cannot be excluded that some of the feed samples could have a negative effect on animal health and performance considering feeding a monodiet of commercial feed, low multi-mycotoxin contamination levels and interactions between mycotoxins.
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Affiliation(s)
- E.M.K. Teixeira
- Department of Biochemistry and Biotechnology, State University of Londrina, P.O. Box 10.011, 86057-970 Londrina, Paraná, Brazil
| | - M.S. Frehse
- Department of Preventive Veterinary Medicine, State University of Londrina, P.O. Box 10.011, 86057-970 Londrina, Paraná, Brazil
| | - R.L. Freire
- Department of Preventive Veterinary Medicine, State University of Londrina, P.O. Box 10.011, 86057-970 Londrina, Paraná, Brazil
| | - M.A. Ono
- Department of Pathological Sciences, State University of Londrina, P.O. Box 10.011, 86057-970 Londrina, Paraná, Brazil
| | - J.G. Bordini
- Department of Biochemistry and Biotechnology, State University of Londrina, P.O. Box 10.011, 86057-970 Londrina, Paraná, Brazil
| | - M.T. Hirozawa
- Department of Biochemistry and Biotechnology, State University of Londrina, P.O. Box 10.011, 86057-970 Londrina, Paraná, Brazil
| | - E.Y.S. Ono
- Department of Biochemistry and Biotechnology, State University of Londrina, P.O. Box 10.011, 86057-970 Londrina, Paraná, Brazil
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