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González-Curbelo MÁ, Kabak B. Occurrence of Mycotoxins in Dried Fruits Worldwide, with a Focus on Aflatoxins and Ochratoxin A: A Review. Toxins (Basel) 2023; 15:576. [PMID: 37756002 PMCID: PMC10537527 DOI: 10.3390/toxins15090576] [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: 08/01/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/28/2023] Open
Abstract
Dried fruits are popular and nutritious snacks consumed worldwide due to their long shelf life and concentrated nutrient content. However, fruits can be contaminated with various toxigenic fungal species during different stages, including cultivation, harvesting, processing, drying, and storage. Consequently, these products may contain high levels of mycotoxins. This risk is particularly pronounced in developed countries due to the impact of climate change. Several factors contribute to mycotoxin production, including the type of fruit, geographical location, climate conditions, harvest treatments, and storage management practices. The main mycotoxins in dried fruits are aflatoxins (AFs) and ochratoxin A (OTA), which can induce human health problems and economic losses. Mycotoxin contamination can vary significantly depending on the geographic origin of dried fruits (vine fruits, figs, dates, apricots, prunes, and mulberries). The aim of this review was to fill the knowledge gap by consolidating data from various regions to understand the global picture and identify regions with higher contamination risks. By consolidating research from various origins and stages of the supply chain, the review intends to shed light on potential contamination events during pre-harvest, drying, storage, and trading, while also highlighting the effects of storage conditions and climate change on mycotoxin contamination.
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Affiliation(s)
- Miguel Ángel González-Curbelo
- Departamento de Ciencias Básicas, Facultad de Ingeniería, Universidad EAN, Calle 79 no 11-45, Bogotá 110221, Colombia
| | - Bulent Kabak
- Department of Food Engineering, Faculty of Engineering, Hitit University, Corum 19030, Turkey
- Biotechnology Laboratory, Machinery and Manufacturing Technology Application and Research Center, Hitit University, Corum 19030, Turkey
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Zhu F, Zhu L, Xu J, Wang Y, Wang Y. Effects of moldy corn on the performance, antioxidant capacity, immune function, metabolism and residues of mycotoxins in eggs, muscle, and edible viscera of laying hens. Poult Sci 2023; 102:102502. [PMID: 36739801 PMCID: PMC9932114 DOI: 10.1016/j.psj.2023.102502] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
Mycotoxins, including aflatoxin B1 (AFB1), zearalenone (ZEN) and deoxynivalenol (DON), are common contaminants of moldy feeds. Mycotoxins can cause deleterious effects on the health of chickens and can be carried over in poultry food products. This study was conducted to investigate the effects of moldy corn (containing AFB1, ZEN, and DON) on the performance, health, and mycotoxin residues of laying hens. One hundred and eighty 400-day-old laying hens were divided into 4 treatments: basal diet (Control), basal diet containing 20% moldy corn (MC20), 40% moldy corn (MC40) and 60% moldy corn (MC60). At d 20, 40, and 60, the performance, oxidative stress, immune function, metabolism, and mycotoxin residues in eggs were determined. At d 60, mycotoxin residues in muscle and edible viscera were measured. Results showed the average daily feed intake (ADFI) and laying performance of laying hens were decreased with moldy corn treatments. All the moldy corn treatments also induced significant oxidative stress and immunosuppression, reflected by decreased antioxidase activities, contents of cytokines, immunoglobulins, and increased malonaldehyde level. Moreover, the activities of aspartate aminotransferase and alanine transaminase were increased by moldy corn treatments. The lipid metabolism was influenced in laying hens receiving moldy corn, reflected by lowered levels of total protein, high density lipoprotein cholesterol, low density lipoprotein cholesterol, total cholesterol, and increased total triglyceride as well as uric acid. The above impairments were aggravated with the increase of mycotoxin levels. Furthermore, AFB1 and ZEN residues were found in eggs, muscle, and edible viscera with moldy corn treatments, but the residues were below the maximum residue limits. In conclusion, moldy corn impaired the performance, antioxidant capacity, immune function, liver function, and metabolism of laying hens at d 20, 40, and 60. Moldy corn also led to AFB1 residue in eggs at d 20, 40, and 60, and led to both AFB1 and ZEN residues in eggs at days 40 and 60, and in muscle and edible viscera at d 60. The toxic effects and mycotoxin residues were elevated with the increase of moldy corn levels in feed.
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Affiliation(s)
- Fenghua Zhu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, P.R. China
| | - Lianqin Zhu
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, P.R. China
| | - Jindong Xu
- College of Science and Information, Qingdao Agricultural University, Qingdao 266109, P.R. China
| | - Yuchang Wang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, P.R. China
| | - Yang Wang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, P.R. China.
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Mehri F, Esfahani M, Heshmati A, Jenabi E, Khazaei S. The prevalence of ochratoxin A in dried grapes and grape-derived products: a systematic review and meta-analysis. TOXIN REV 2020. [DOI: 10.1080/15569543.2020.1845739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Fereshteh Mehri
- Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Maryam Esfahani
- Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ali Heshmati
- Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ensiyeh Jenabi
- Autism Spectrum Disorders Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Salman Khazaei
- Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
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Jonatova P, Dzuman Z, Prusova N, Hajslova J, Stranska-Zachariasova M. Occurrence of ochratoxin A and its stereoisomeric degradation product in various types of coffee available in the Czech market. WORLD MYCOTOXIN J 2020. [DOI: 10.3920/wmj2019.2507] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Ochratoxin A (OTA) belongs among the most frequently occurring mycotoxins in coffee. In order to investigate its contamination levels in products currently available in the market, a broad set of coffee samples (103 in total) collected between 2016 and 2018 in the Czech Republic was investigated. Aqueous-methanolic extracts purified by using immunoaffinity columns were analysed by ultra-performance liquid chromatography coupled with tandem mass spectrometry (U-HPLC-MS/MS). The undertaken study revealed a relatively low OTA contamination of roasted coffee (in the range 0.2-2.5 μg/kg with the mean concentration of 0.6 μg/kg, and 71% of positive samples). The roasted coffee samples did not exceed the maximum limit of 5 μg/kg set by 1881/2006/EC. With regard to instant coffee samples, OTA concentrations were considerably higher. All the samples were positive, with a mean concentration of 2.9 μg/kg (ranging from 0.6 to 12.8 μg/kg, with 100% of positive samples). One of the analysed samples of instant coffee even exceeded the maximum limit of 10 μg/kg (1881/2006/EC). The study further revealed a relatively high incidence of 14-(R)-OTA, stereoisomer of OTA (14-(S)-OTA), originating as its main degradation product. Its identity was confirmed by high resolution mass spectrometry (HRMS/MS). Most of the samples positive for OTA were also positive for this diastereoisomer, with signal intensities of approx. one-third to one half of the signal of 14-(S)-OTA.
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Affiliation(s)
- P. Jonatova
- University of Chemistry and Technology, Technicka 5, 166 28, Prague, Czech Republic
| | - Z. Dzuman
- University of Chemistry and Technology, Technicka 5, 166 28, Prague, Czech Republic
| | - N. Prusova
- University of Chemistry and Technology, Technicka 5, 166 28, Prague, Czech Republic
| | - J. Hajslova
- University of Chemistry and Technology, Technicka 5, 166 28, Prague, Czech Republic
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Is Eating Raisins Healthy? Nutrients 2019; 12:nu12010054. [PMID: 31878160 PMCID: PMC7019280 DOI: 10.3390/nu12010054] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 12/24/2022] Open
Abstract
Raisins are dried grapes consumed worldwide that contain beneficial components for human health. They are rich in fiber and phytochemicals such as phenolic compounds. Despite a 60% sugar content, several studies have reported health-promoting properties for raisins and this review compiles the intervention studies, as well as the cell line and animal model studies carried out to date. It has been demonstrated that raisins possess a low-to-moderate glycemic index, which makes them a healthy snack. They seem to contribute to a better diet quality and may reduce appetite. Their antioxidant capacity has been correlated to the phenolic content and this may be involved in the improvement of cardiovascular health. In addition, raisins maintain a good oral health due to their antibacterial activity, low adherence to teeth and an optimum oral pH. Raisin consumption also seems to be favorable for colon function, although more studies should be done to conclude this benefit. Moreover, gut microbiota could be affected by the prebiotic content of raisins. Cell line and animal model studies show other potential benefits in specific diseases, such as cancer and Alzheimer’s disease. However, deeper research is required and future intervention studies with humans are needed. Overall, incorporating an 80–90 g portion of raisins (half a cup) into the daily diet may be favorable for human health.
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Szabó A, Szabó-Fodor J, Kachlek M, Mézes M, Balogh K, Glávits R, Ali O, Zeebone YY, Kovács M. Dose and Exposure Time-Dependent Renal and Hepatic Effects of Intraperitoneally Administered Fumonisin B₁ in Rats. Toxins (Basel) 2018; 10:E465. [PMID: 30424021 PMCID: PMC6265755 DOI: 10.3390/toxins10110465] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/02/2018] [Accepted: 11/07/2018] [Indexed: 01/09/2023] Open
Abstract
Male Wistar rats were treated intraperitoneally (i.p.) with fumonisin B₁ (FB₁; 0, 20, 50 and 100 mg/kg dietary dose equivalent) for 5 and 10 days (n = 24⁻24 in each setting) to gain dose- and time-dependent effects on antioxidant status and oxidative stress response, clinical chemical endpoints and liver, kidney and lung histopathology and lymphocyte damage (genotoxicity). FB₁ decreased feed intake, body weight gain and absolute liver weight, irrespective of the toxin dose. Relative kidney weight increased in the 10-day setting. Linear dose response was found for plasma aspartate aminotransferase, alanine aminotransferase, total cholesterol, urea and creatinine, and exposure time-dependence for plasma creatinine level. The latter was coupled with renal histopathological findings, tubular degeneration and necrosis and the detachment of tubular epithelial cells. The pronounced antioxidant response (reduced glutathione accretion, increasing glutathione peroxidase activity) referred to renal cortical response (5⁻10 days exposure at 50⁻100 ppm FB₁). Hepatic alterations were moderate, referring to initial phase lipid peroxidation (exposure time dependent difference of conjugated diene and triene concentrations), and slight functional disturbance (↑ total cholesterol). Lymphocyte DNA damage was moderate, supporting a mild genotoxic effect of FB₁.
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Affiliation(s)
- András Szabó
- MTA-KE-SZIE Mycotoxins in the Food Chain Research Group, Kaposvár University, Guba S. u. 40., 7400 Kaposvár, Hungary.
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., 7400 Kaposvár, Hungary.
- Somogy County Kaposi Mór Teaching Hospital, Dr. József Baka Diagnostical, Oncoradiological, Research and Educational Center, Guba S. u. 40., 7400 Kaposvár, Hungary.
| | - Judit Szabó-Fodor
- MTA-KE-SZIE Mycotoxins in the Food Chain Research Group, Kaposvár University, Guba S. u. 40., 7400 Kaposvár, Hungary.
| | - Mariam Kachlek
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., 7400 Kaposvár, Hungary.
| | - Miklós Mézes
- MTA-KE-SZIE Mycotoxins in the Food Chain Research Group, Kaposvár University, Guba S. u. 40., 7400 Kaposvár, Hungary.
- Faculty of Agricultural and Environmental Sciences, Department of Nutrition, Szent István University, Páter K. u. 1., 2013 Gödöllő, Hungary.
| | - Krisztián Balogh
- MTA-KE-SZIE Mycotoxins in the Food Chain Research Group, Kaposvár University, Guba S. u. 40., 7400 Kaposvár, Hungary.
- Faculty of Agricultural and Environmental Sciences, Department of Nutrition, Szent István University, Páter K. u. 1., 2013 Gödöllő, Hungary.
| | | | - Omeralfaroug Ali
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., 7400 Kaposvár, Hungary.
| | - Yarsmin Yunus Zeebone
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., 7400 Kaposvár, Hungary.
| | - Melinda Kovács
- MTA-KE-SZIE Mycotoxins in the Food Chain Research Group, Kaposvár University, Guba S. u. 40., 7400 Kaposvár, Hungary.
- Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., 7400 Kaposvár, Hungary.
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Knutsen HK, Barregård L, Bignami M, Brüschweiler B, Ceccatelli S, Cottrill B, Dinovi M, Edler L, Grasl-Kraupp B, Hogstrand C, Hoogenboom LR, Nebbia CS, Petersen A, Rose M, Roudot AC, Schwerdtle T, Vleminckx C, Vollmer G, Wallace H, Dall'Asta C, Gutleb AC, Humpf HU, Galli C, Metzler M, Oswald IP, Parent-Massin D, Binaglia M, Steinkellner H, Alexander J. Appropriateness to set a group health-based guidance value for fumonisins and their modified forms. EFSA J 2018; 16:e05172. [PMID: 32625807 PMCID: PMC7009576 DOI: 10.2903/j.efsa.2018.5172] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The EFSA Panel on Contaminants in the Food Chain (CONTAM) established a tolerable daily intake (TDI) for fumonisin B1 (FB 1) of 1.0 μg/kg body weight (bw) per day based on increased incidence of megalocytic hepatocytes found in a chronic study with mice. The CONTAM Panel considered the limited data available on toxicity and mode of action and structural similarities of FB 2-6 and found it appropriate to include FB 2, FB 3 and FB 4 in a group TDI with FB 1. Modified forms of FBs are phase I and phase II metabolites formed in fungi, infested plants or farm animals. Modified forms also arise from food or feed processing, and include covalent adducts with matrix constituents. Non-covalently bound forms are not considered as modified forms. Modified forms of FBs identified are hydrolysed FB 1-4 (HFB 1-4), partially hydrolysed FB 1-2 (pHFB 1-2), N-(carboxymethyl)-FB 1-3 (NCM-FB 1-3), N-(1-deoxy-d-fructos-1-yl)-FB 1 (NDF-FB 1), O-fatty acyl FB 1, N-fatty acyl FB 1 and N-palmitoyl-HFB 1. HFB 1, pHFB 1, NCM-FB 1 and NDF-FB 1 show a similar toxicological profile but are less potent than FB 1. Although in vitro data shows that N-fatty acyl FBs are more toxic in vitro than FB 1, no in vivo data were available for N-fatty acyl FBs and O-fatty acyl FBs. The CONTAM Panel concluded that it was not appropriate to include modified FBs in the group TDI for FB 1-4. The uncertainty associated with the present assessment is high, but could be reduced provided more data are made available on occurrence, toxicokinetics and toxicity of FB 2-6 and modified forms of FB 1-4.
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Amelin VG, Lavrukhina OI. Food safety assurance using methods of chemical analysis. JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1134/s1061934817010038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kolakowski B, O'Rourke SM, Bietlot HP, Kurz K, Aweryn B. Ochratoxin A Concentrations in a Variety of Grain-Based and Non-Grain-Based Foods on the Canadian Retail Market from 2009 to 2014. J Food Prot 2016; 79:2143-2159. [PMID: 28221957 DOI: 10.4315/0362-028x.jfp-16-051] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The extent of ochratoxin A (OTA) contamination of domestically produced foods sold across Canada was determined from 2009 to 2014 with sampling and testing occurring each fiscal year. Cereal-based, fruit-based, and soy-based food samples (n = 6,857) were analyzed. Almost half of the samples (3,200; 47%) did not contain detectable concentrations of OTA. The remaining 3,657 samples contained OTA at 0.040 to 631 ng/g. Wheat, oats, milled products of other grains (such as rye and buckwheat), and to a lesser extent corn products and their derived foods were the most significant potential sources of OTA exposure for the Canadian population. Wine, grape juice, soy products, beer, dairy-based infant formula, and licorice candy were not significant contributors to OTA consumption. Spices had the highest OTA concentrations; but because so little is ingested, these foods are not considered to be a significant source of OTA. In contrast, infant formulas and cereals can be important dietary sources of OTA. Infant cereals containing oats and infant formulas containing soy had detectable concentrations of OTA, some of which exceeded the proposed Canadian guidelines. The prevalence and concentrations of OTA in major crops (wheat, corn, and oats) varied widely across years. Because these foods were purchased at retail stores, no information was available on the OTA concentrations in the raw materials, the storage conditions before purchase of the samples, or the origin of the ingredients (may include blends of raw materials from different years and/or different geographical regions of Canada); therefore, impact of these factors could not be assessed. Overall, 2.3% of the samples exceeded the proposed Canadian OTA regulatory limits and 2.7% exceeded the current European Union (EU) OTA regulatory limits. These results are consistent with a Health Canada exposure assessment published in 2010, despite the inclusion of a wider range of products and confirm the safety of foods widely available across Canada.
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Affiliation(s)
- Beata Kolakowski
- Canadian Food Inspection Agency, 1400 Merivale Road, Ottawa, Ontario, Canada K1A 0Y9
| | - Sarah M O'Rourke
- Canadian Food Inspection Agency, 1400 Merivale Road, Ottawa, Ontario, Canada K1A 0Y9
| | - Henri P Bietlot
- Canadian Food Inspection Agency, 1400 Merivale Road, Ottawa, Ontario, Canada K1A 0Y9
| | - Karl Kurz
- Canadian Food Inspection Agency, 1400 Merivale Road, Ottawa, Ontario, Canada K1A 0Y9
| | - Barbara Aweryn
- Canadian Food Inspection Agency, 1400 Merivale Road, Ottawa, Ontario, Canada K1A 0Y9
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Iqbal SZ, Asi MR, Hanif U, Zuber M, Jinap S. The presence of aflatoxins and ochratoxin A in rice and rice products; and evaluation of dietary intake. Food Chem 2016; 210:135-40. [PMID: 27211631 DOI: 10.1016/j.foodchem.2016.04.104] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 04/19/2016] [Accepted: 04/21/2016] [Indexed: 12/24/2022]
Abstract
In present study aflatoxins (AFs) and ochratoxin A (OTA) were analysed in 208 samples of rice and products collected from central areas of Punjab, Pakistan. The analysis was carried out using HPLC equipped with fluorescence detector. The results have shown that 35% of the samples were found contaminated with AFs, out of which 19% and 24% samples were found to be above the European Union (EU) maximum content for AFB1 and total AFs, respectively. About 19% samples were found contaminated with OTA and 14% samples were found to be above the EU maximum content. The highest mean level of AFB1 and total AFs were found in brown rice samples i.e. 8.91 and 12.4μg/kg, respectively. However, white rice samples have shown the highest mean level of OTA (8.50μg/kg) with highest level of 24.9μg/kg. The high mean dietary exposure 22.2 and 24.2ngkg(-1)bwday(-1) to AFB1 and OTA, respectively poses significant health hazard for local population.
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Affiliation(s)
- Shahzad Zafar Iqbal
- Department of Applied Chemistry & Biochemistry, Government College University, Faisalabad 38000, Pakistan; Food Safety Research Centre (FOSREC), Faculty of Food Science and Technology, University of Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Muhammad Rafique Asi
- Food Toxicology Lab., Nuclear Institute for Agriculture and Biology (NIAB), P.O. Box 128, Faisalabad 38950, Pakistan
| | - Usman Hanif
- Department of Applied Chemistry & Biochemistry, Government College University, Faisalabad 38000, Pakistan
| | - Muhammad Zuber
- Department of Applied Chemistry & Biochemistry, Government College University, Faisalabad 38000, Pakistan
| | - S Jinap
- Food Safety Research Centre (FOSREC), Faculty of Food Science and Technology, University of Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Institute of Tropical Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
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Jia R, Ma Q, Fan Y, Ji C, Zhang J, Liu T, Zhao L. The toxic effects of combined aflatoxins and zearalenone in naturally contaminated diets on laying performance, egg quality and mycotoxins residues in eggs of layers and the protective effect of Bacillus subtilis biodegradation product. Food Chem Toxicol 2016; 90:142-50. [PMID: 26891816 DOI: 10.1016/j.fct.2016.02.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 02/07/2016] [Accepted: 02/10/2016] [Indexed: 11/18/2022]
Abstract
The toxic effect of aflatoxins (AF) and zearalenone (ZEA) and their combination on laying performance, egg quality and toxins residues in eggs, as well as the efficacy of Bacillus subtilis biodegradation product (BDP) for ameliorating these effects in layers were evaluated. Layers were submitted to a two phase experiment. The first phase was an intoxication period (18-23 wk) with birds fed 7 (3 × 2 + 1) diets (3 treatments with mycotoxins: AF (123.0 μg/kg), ZEA (260.2 μg/kg), or AF + ZEA (123.0 + 260.2 μg/kg); 2 treatments with or without BDP (1000 g/t); and a control group contained no toxins nor BDP). The next phase was a recovery period (24-29 wk) in which birds were fed a toxin-free diet. In the intoxication period, AF and AF + ZEA groups exhibited lower egg production, feed intake and shell thickness, and higher AFB1, AFB2 and AFM1 residues as compared with the control group. In addition, AF and ZEA exerted synergistic effects on egg production and feed intake. Moreover, AF alone or combined with ZEA had a continuous toxic effect on laying performance in the recovery phase. Addition of BDP offset these negative effects, showing that BDP has a protective effect on layers fed contaminated diets.
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Affiliation(s)
- Ru Jia
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Qiugang Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yu Fan
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Cheng Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jianyun Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Tao Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Lihong Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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