1
|
Guadalupe GA, Grandez-Yoplac DE, Arellanos E, Doménech E. Probabilistic Risk Assessment of Metals, Acrylamide and Ochratoxin A in Instant Coffee from Brazil, Colombia, Mexico and Peru. Foods 2024; 13:726. [PMID: 38472839 DOI: 10.3390/foods13050726] [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: 01/13/2024] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
This study analysed the probabilistic risk to consumers associated with the presence of iAs, Cd, Cr, Hg, Pb, acrylamide (AA) and ochratoxin A (OTA) in instant coffee from Brazil, Colombia, Mexico and Peru. The results found iAs to be the metal with the highest concentrations (3.50 × 10-2 to 6.00 × 10-2 mg/kg), closely followed by Pb (1.70 × 10-2 to 2.70 × 10-2 mg/kg) and Cr (5.00 × 10-3 to 1.00 × 10-2 mg/kg), although these differences were not significant between countries. Cd and Hg were not detected. Focusing on AA, the concentrations ranged from 1.77 × 10-1 mg/kg (Peru) to 4.77 × 10-1 mg/kg (Brazil), while OTA ranged from 1.32 × 10-3 (Peru) to 1.77 × 10-3 mg/kg (Brazil) with significant differences between countries in both cases. As regards risk, the hazard quotient and hazard index were less than 1, meaning that the consumption of instant coffee represents a low level of concern for non-genotoxic effects. The results of the combination of margin of exposure and probability of exceedance indicated that the non-genotoxic effects of Pb, AA and OTA pose no threat. However, the probability values of suffering cancer from iAs and AA (between 1 × 10-6 and 1 × 10-4) indicated a moderate risk and that management measures should be taken.
Collapse
Affiliation(s)
- Grobert A Guadalupe
- Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas, 342 Higos Urco, Chachapoyas 01001, Peru
- Instituto de Investigación, Innovación y Desarrollo para el Sector Agrario y Agroindustrial de la Región Amazonas (IIDAA), Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas, Chachapoyas 01001, Peru
| | - Dorila E Grandez-Yoplac
- Instituto de Investigación, Innovación y Desarrollo para el Sector Agrario y Agroindustrial de la Región Amazonas (IIDAA), Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas, Chachapoyas 01001, Peru
| | - Erick Arellanos
- Instituto de Investigación en Ingeniería Ambiental (INAM), Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas, Higos Urco 342, Chachapoyas 01001, Peru
| | - Eva Doménech
- Instituto Universitario de Ingeniería de Alimentos Food-UPV, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| |
Collapse
|
2
|
Banahene JCM, Ofosu IW, Odai BT. Surveillance of ochratoxin A in cocoa beans from cocoa-growing regions of Ghana. Heliyon 2023; 9:e18206. [PMID: 37501961 PMCID: PMC10368851 DOI: 10.1016/j.heliyon.2023.e18206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 07/29/2023] Open
Abstract
Cocoa is one of the agricultural commodities which is highly susceptible to mycotoxin contamination. During two crop/harvest seasons, the occurrence and distribution of ochratoxin A (OTA) in viable commercial cocoa beans were investigated. The cocoa bean samples were collected randomly from farmers across cocoa-growing regions of Ghana. OTA concentrations in the samples were determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS) methods following purification on immunoaffinity solid phase column. The result showed that 21.7% of all samples analyzed were contaminated with OTA at concentrations ranging from 0.01 μg/kg to 12.36 μg/kg. The Western South region had the highest occurrence of OTA-positive samples at 32.5%, followed by the Western North region at 28.75%, the Eastern and Volta regions at 25% each, Brong Ahafo (16.25%), Central (15%) and the Ashanti region at 11.25%. However, 0.9% and 3.5% of the total OTA-positive samples exceeded the OTA maximum limits of 10 μg/kg for cocoa beans and 3 μg/kg for cocoa powder, set by the Brazilian National Health Surveillance Agency and the European Commission, respectively. During the Main and Light crop seasons, the highest concentrations of OTA were detected in the Western North region, reaching up to 12.36 μg/kg and 3.45 μg/kg, respectively. OTA concentrations between the cocoa-growing regions in the Main crop season were not significantly different (p > 0.05), however, the Light crop season indicated a significant difference (p < 0.05). There was a significant difference (p < 0.05) between the two crop seasons. The need for regular monitoring and careful adherence to agronomic strategies such as good agricultural practices (GAPs), recommended code of practices (COPs) and good manufacturing practices (GMPs) for the prevention and reduction of OTA throughout the cocoa value chain cannot be overemphasized.
Collapse
Affiliation(s)
- Joel Cox Menka Banahene
- Department of Food Science and Technology, Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana
- Research Department, Quality Control Company Limited – Ghana Cocoa Board, Tema, Greater Accra, Ghana
| | - Isaac Williams Ofosu
- Department of Food Science and Technology, Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana
| | - Bernard Tawiah Odai
- Radiation Technology Centre - BNARI, Ghana Atomic Energy Commission, Kwabenya, Accra, Ghana
| |
Collapse
|
3
|
Yoshinari T, Watanabe M, Hara-Kudo Y. Cross-genus inhibitory activity of polyoxins against aflatoxin production by Aspergillus parasiticus and fumonisin production by Fusarium fujikuroi. FEMS Microbiol Lett 2022; 369:6596283. [PMID: 35641197 DOI: 10.1093/femsle/fnac048] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 05/25/2022] [Indexed: 11/14/2022] Open
Abstract
Co-exposure to aflatoxin and fumonisin is a health concern where corn is a staple food, and a method to prevent co-contamination of these mycotoxins in foods is urgently needed. Polyoxins are chitin synthase inhibitors produced by Streptomyces cacaoi var. asoensis. The aflatoxin production inhibitory activity of a commercially available polyoxin D and four polyoxins purified from polyoxin AL water-soluble powder, an agricultural chemical containing polyoxins, was tested. The five polyoxins dose-dependently inhibited aflatoxin production by Aspergillus parasiticus and the IC50 values of polyoxin A, B, D, K and L were 16, 74, 110, 9 and 280 µmol L-1, respectively. Polyoxins also inhibited fumonisin production by Fusarium fujikuroi, and the IC50 values of polyoxin B, D, K and L were 270, 42, 65 and 62 µmol L-1, respectively. Polyoxins repressed the transcription of genes encoding proteins required for aflatoxin biosynthesis in A. parasiticus and fumonisin biosynthesis in F. fujikuroi. Polyoxin K and D also inhibited conidiation in A. parasiticus and F. fujikuroi, respectively. These results suggest that a mixture of polyoxins may effectively prevent co-contamination of aflatoxin and fumonisin in foods.
Collapse
Affiliation(s)
- Tomoya Yoshinari
- Division of Microbiology, National Institute of Health Sciences, Kawasaki, Kanagawa 210-9501, Japan
| | - Maiko Watanabe
- Division of Microbiology, National Institute of Health Sciences, Kawasaki, Kanagawa 210-9501, Japan
| | - Yukiko Hara-Kudo
- Division of Microbiology, National Institute of Health Sciences, Kawasaki, Kanagawa 210-9501, Japan
| |
Collapse
|
4
|
Research Progress on Fumonisin B1 Contamination and Toxicity: A Review. Molecules 2021; 26:molecules26175238. [PMID: 34500671 PMCID: PMC8434385 DOI: 10.3390/molecules26175238] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/24/2021] [Accepted: 08/24/2021] [Indexed: 12/19/2022] Open
Abstract
Fumonisin B1 (FB1), belonging to the member of fumonisins, is one of the most toxic mycotoxins produced mainly by Fusarium proliferatum and Fusarium verticillioide. FB1 has caused extensive contamination worldwide, mainly in corn, rice, wheat, and their products, while it also poses a health risk and is toxic to animals and human. It has been shown to cause oxidative stress, endoplasmic reticulum stress, cellular autophagy, and apoptosis. This review focuses on the current stage of FB1 contamination, its toxic effects of acute toxicity, immunotoxicity, organ toxicity, and reproductive toxicity on animals and humans. The potential toxic mechanisms of FB1 are discussed. One of the main aims of the work is to provide a reliable reference strategy for understanding the occurrence and toxicity of FB1.
Collapse
|
5
|
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
| |
Collapse
|
6
|
Yoshinari T, Watanabe M, Ohnishi T, Hara-Kudo Y. [Assessment of Modified Forms of Fumonisins in Corn-Based Products Retailed in Japan by an Alkaline Hydrolysis Method]. Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2020; 61:119-125. [PMID: 33012765 DOI: 10.3358/shokueishi.61.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Fumonisins, which are secondary metabolites produced by some Fusarium species, are detected mainly in corn and corn-based products. Recently, the presence of modified forms of fumonisins in fumonisin-contaminated food products has been reported. In order to evaluate the health risk of modified forms of fumonisins to the Japanese population, we analyzed modified forms of fumonisins in corn-based products retailed in Japan. The modified and free forms of fumonisins in food samples were hydrolyzed by alkaline treatment. The resulting hydrolyzed fumonisins were quantified by LC-MS/MS, and total fumonisins (sum of modified and free forms) was calculated. A total of 166 samples of corn-based products were analyzed over two years. The relative ratios of mean total fumonisins to mean free fumonisins in the cornflakes, corn snacks, corn flour and powdered corn soup samples were 4.7, 2.8, 2.1 and 1.2, respectively. Total fumonisins in the residual solid of five cornflake and three corn snack samples obtained after extraction with methanol-water (3 : 1) were quantified. In the cornflakes and corn snacks samples, 56-72 and 83-98% of the modified forms of fumonisins were present in the residual solid, respectively. The average daily intake of fumonisins from cornflakes and corn snacks by the Japanese population was estimated at 1.1 to 3.9 ng/kg body weight/day when the results of free fumonisins were used for the estimate, but when the results of total fumonisins were used, average daily intake increased about three times and was estimated at 3.3 to 12.5 ng/kg body weigh/day. These results indicate that a risk assessment of fumonisins, including the modified forms of fumonisins, is necessary in order to evaluate the true risk of fumonisins to Japanese people.
Collapse
|
7
|
Evaluation of mycotoxins and their estimated daily intake in popcorn and cornflakes using LC-MS techniques. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.04.073] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
8
|
Braun MS, Wink M. Exposure, Occurrence, and Chemistry of Fumonisins and their Cryptic Derivatives. Compr Rev Food Sci Food Saf 2018; 17:769-791. [DOI: 10.1111/1541-4337.12334] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 11/20/2017] [Accepted: 12/18/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Markus Santhosh Braun
- Inst. of Pharmacy and Molecular Biotechnology; Heidelberg Univ.; INF 364 69120 Heidelberg Germany
| | - Michael Wink
- Inst. of Pharmacy and Molecular Biotechnology; Heidelberg Univ.; INF 364 69120 Heidelberg Germany
| |
Collapse
|
9
|
Niyibituronsa M, Onyango AN, Gaidashova S, Imathiu SM, Uwizerwa M, Wanjuki I, Nganga F, Muhutu JC, Birungi J, Ghimire S, Raes K, De Boevre M, De Saeger S, Harvey J. Evaluation Of Mycotoxin Content In Soybean (Glycine max L.) Grown In Rwanda. AFRICAN JOURNAL OF FOOD, AGRICULTURE, NUTRITION, AND DEVELOPMENT : AJFAND 2018; 18:AJFAND-18-03-13808. [PMID: 33281893 PMCID: PMC7714182 DOI: 10.18697/ajfand.83.17710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Soybean is a critical food and nutritional security crop in Rwanda. Promoted by the Rwandan National Agricultural Research System for both adults and as an infant weaning food, soybean is grown by approximately 40% of households. Soybean may be susceptible to the growth of mycotoxin-producing moulds; however, data has been contradictory. Mycotoxin contamination is a food and feed safety issue for grains and other field crops. This study aimed to determine the extent of mycotoxin contamination in soybean, and to assess people's awareness on mycotoxins. A farm-level survey was conducted in 2015 within three agro-ecological zones of Rwanda suitable for soybean production. Soybean samples were collected from farmers (n=300) who also completed questionnaires about pre-and post-harvest farm practices, and aflatoxin awareness. The concentration of total aflatoxin in individual soybean samples was tested by enzymelinked immunosorbent assay (ELISA) using a commercially-available kit. Other mycotoxins were analyzed using liquid chromatography-mass spectrometry (LCMS/MS) on 10 selected sub samples. Only 7.3% of the respondents were aware of aflatoxin contamination in foods, but farmers observed good postharvest practices including harvesting the crop when the pods were dry. Using enzyme-linked immunosorbent assay (ELISA), only one sample had a concentration (11 µg/kg) above the most stringent EU maximum permitted limit of 4 µg/kg. Multi-mycotoxins liquid chromatography-mass spectrometry (LC-MS/MS) results confirmed that soybeans had low or undetectable contamination; only one sample contained 13µg/kg of sterigmatocystine. The soybean samples from Rwanda obtained acceptably low mycotoxin levels. Taken together with other studies that showed that soybean is less contaminated by mycotoxins, these results demonstrate that soybean can be promoted as a nutritious and safe food. However, there is a general need for educating farmers on mycotoxin contamination in food and feed to ensure better standards are adhered to safeguard the health of the consumers regarding these fungal secondary metabolites.
Collapse
Affiliation(s)
- M Niyibituronsa
- Rwanda Agriculture Board, Rwanda, P.O. BOX 5016 Kigali, Rwanda
- Jomo Kenyatta University of Agriculture and Technology, Kenya, P.O. BOX 62000 (00200) Nairobi Kenya
- Biosciences eastern and central Africa-International Livestock Research Institute Hub, Kenya, Nairobi, 00100, Kenya
- Department of Bioanalysis, Ghent University, Belgium, 9000 Gent, Belgium
| | - AN Onyango
- Jomo Kenyatta University of Agriculture and Technology, Kenya, P.O. BOX 62000 (00200) Nairobi Kenya
| | - S Gaidashova
- Rwanda Agriculture Board, Rwanda, P.O. BOX 5016 Kigali, Rwanda
| | - SM Imathiu
- Jomo Kenyatta University of Agriculture and Technology, Kenya, P.O. BOX 62000 (00200) Nairobi Kenya
| | - M Uwizerwa
- Rwanda Agriculture Board, Rwanda, P.O. BOX 5016 Kigali, Rwanda
| | - I Wanjuki
- Biosciences eastern and central Africa-International Livestock Research Institute Hub, Kenya, Nairobi, 00100, Kenya
| | - F Nganga
- Biosciences eastern and central Africa-International Livestock Research Institute Hub, Kenya, Nairobi, 00100, Kenya
| | - JC Muhutu
- Rwanda Agriculture Board, Rwanda, P.O. BOX 5016 Kigali, Rwanda
| | - J Birungi
- Biosciences eastern and central Africa-International Livestock Research Institute Hub, Kenya, Nairobi, 00100, Kenya
| | - S Ghimire
- Biosciences eastern and central Africa-International Livestock Research Institute Hub, Kenya, Nairobi, 00100, Kenya
| | - K Raes
- Department of Food Technology, Safety and Health, Ghent University – Campus Kortrijk, Belgium, 8500 Kortrijk, Belgium
| | - M De Boevre
- Department of Bioanalysis, Ghent University, Belgium, 9000 Gent, Belgium
| | - S De Saeger
- Department of Bioanalysis, Ghent University, Belgium, 9000 Gent, Belgium
| | - J Harvey
- Biosciences eastern and central Africa-International Livestock Research Institute Hub, Kenya, Nairobi, 00100, Kenya
- Feed the Future Innovation Lab for the Reduction of Post-Harvest Loss, and Department of Plant Pathology, Kansas State University, Manhattan, KS66506, USA
| |
Collapse
|
10
|
Lee HJ, Ryu D. Worldwide Occurrence of Mycotoxins in Cereals and Cereal-Derived Food Products: Public Health Perspectives of Their Co-occurrence. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:7034-7051. [PMID: 27976878 DOI: 10.1021/acs.jafc.6b04847] [Citation(s) in RCA: 346] [Impact Index Per Article: 49.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Cereal grains and their processed food products are frequently contaminated with mycotoxins. Among many, five major mycotoxins of aflatoxins, ochratoxins, fumonisins, deoxynivalenol, and zearalenone are of significant public health concern as they can cause adverse effects in humans. Being airborne or soilborne, the cosmopolitan nature of mycotoxigenic fungi contribute to the worldwide occurrence of mycotoxins. On the basis of the global occurrence data reported during the past 10 years, the incidences and maximum levels in raw cereal grains were 55% and 1642 μg/kg for aflatoxins, 29% and 1164 μg/kg for ochratoxin A, 61% and 71,121 μg/kg for fumonisins, 58% and 41,157 μg/kg, for deoxynivalenol, and 46% and 3049 μg/kg for zearalenone. The concentrations of mycotoxins tend to be lower in processed food products; the incidences varied depending on the individual mycotoxins, possibly due to the varying stability during processing and distribution of mycotoxins. It should be noted that more than one mycotoxin, produced by a single or several fungal species, may occur in various combinations in a given sample or food. Most studies reported additive or synergistic effects, suggesting that these mixtures may pose a significant threat to public health, particularly to infants and young children. Therefore, information on the co-occurrence of mycotoxins and their interactive toxicity is summarized in this paper.
Collapse
Affiliation(s)
- Hyun Jung Lee
- School of Food Science, University of Idaho , 875 Perimeter Drive MS 2312, Moscow, Idaho 83844, United States
| | - Dojin Ryu
- School of Food Science, University of Idaho , 875 Perimeter Drive MS 2312, Moscow, Idaho 83844, United States
| |
Collapse
|
11
|
Wada T, Saito H, Aoyama K, Saito S, Shibukawa M. Development and inter-laboratory study of a method for quantifying ochratoxin A in pet foods. WORLD MYCOTOXIN J 2017. [DOI: 10.3920/wmj2015.1953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
An analytical method for quantifying ochratoxin A (OTA) in pet foods using high-performance liquid chromatography was developed, and an inter-laboratory study was conducted. OTA was extracted from samples with aqueous acetonitrile. The extract was purified by an immunoaffinity column, OCHRAKING, and analysed by high performance liquid chromatography with fluorescence detection. The limits of quantification by this method were 2 µg/kg for dry and semidry pet food and 1 µg/kg for wet type pet food. The calibration curve showed linearity in the range of 0.5-50 ng/ml (equivalent to 1-100 µg/kg for wet type pet food). The mean recoveries of OTA spiked at 1-5 µg/kg were in the range of 83.0-106% and relative standard deviations of the in-house method validation were 2.6-6.8%. The mean recoveries, repeatability, reproducibility and the Horwitz ratios for OTA from the inter-laboratory validation study were 75.6-83.1%, 3.5-6.1%, 5.0-15.0% and 0.23-0.68, respectively.
Collapse
Affiliation(s)
- T. Wada
- Chemicals Evaluation and Research Institute Japan (CERI), CERI Tokyo, Environmental Technology Department, 1600, Shimotakano, Sugito-machi, Kitakatsushika-gun, Saitama 345-0043, Japan
- Graduate School of Science and Engineering, Saitama University 255, Shimo-Okubo, Sakura, Saitama 338-8570, Japan
| | - H. Saito
- Food and Agricultural Materials Inspection Center (FAMIC) Fertilizer and Feed Inspection Department, Saitama Shintoshin National Government Building, Kensato Building 2-1, Shintoshin, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| | - K. Aoyama
- Food and Agricultural Materials Inspection Center (FAMIC) Fertilizer and Feed Inspection Department, Saitama Shintoshin National Government Building, Kensato Building 2-1, Shintoshin, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| | - S. Saito
- Graduate School of Science and Engineering, Saitama University 255, Shimo-Okubo, Sakura, Saitama 338-8570, Japan
| | - M. Shibukawa
- Graduate School of Science and Engineering, Saitama University 255, Shimo-Okubo, Sakura, Saitama 338-8570, Japan
| |
Collapse
|
12
|
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.
Collapse
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
| |
Collapse
|
13
|
Wongworapat K, Tu Ho MH, Soontornjanagit M, Kawamura O. Occurrence of ochratoxin A and ochratoxin B in commercial coffee in Vietnam and Thailand. ACTA ACUST UNITED AC 2016. [DOI: 10.2520/myco.66.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
14
|
Ostry V, Malir F, Dofkova M, Skarkova J, Pfohl-Leszkowicz A, Ruprich J. Ochratoxin A Dietary Exposure of Ten Population Groups in the Czech Republic: Comparison with Data over the World. Toxins (Basel) 2015; 7:3608-35. [PMID: 26378578 PMCID: PMC4591665 DOI: 10.3390/toxins7093608] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 08/31/2015] [Accepted: 09/02/2015] [Indexed: 12/04/2022] Open
Abstract
Ochratoxin A is a nephrotoxic and renal carcinogenic mycotoxin and is a common contaminant of various food commodities. Eighty six kinds of foodstuffs (1032 food samples) were collected in 2011–2013. High-performance liquid chromatography with fluorescence detection was used for ochratoxin A determination. Limit of quantification of the method varied between 0.01–0.2 μg/kg depending on the food matrices. The most exposed population is children aged 4–6 years old. Globally for this group, the maximum ochratoxin A dietary exposure for “average consumer” was estimated at 3.3 ng/kg bw/day (lower bound, considering the analytical values below the limit of quantification as 0) and 3.9 ng/kg bw/day (middle bound, considering the analytical values below the limit of quantification as 1/2 limit of quantification). Important sources of exposure for this latter group include grain-based products, confectionery, meat products and fruit juice. The dietary intake for “high consumers” in the group 4–6 years old was estimated from grains and grain-based products at 19.8 ng/kg bw/day (middle bound), from tea at 12.0 ng/kg bw/day (middle bound) and from confectionery at 6.5 ng/kg bw/day (middle bound). For men aged 18–59 years old beer was the main contributor with an intake of 2.60 ng/kg bw/day (“high consumers”, middle bound). Tea and grain-based products were identified to be the main contributors for dietary exposure in women aged 18–59 years old. Coffee and wine were identified as a higher contributor of the OTA intake in the population group of women aged 18–59 years old compared to the other population groups.
Collapse
Affiliation(s)
- Vladimir Ostry
- National Reference Center for Microfungi and Mycotoxins in Food Chains, Center of Health, Nutrition and Food in Brno, National Institute of Public Health in Prague, 61242 Brno, Czech Republic.
| | - Frantisek Malir
- Department of Biology, Faculty of Science, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic.
| | - Marcela Dofkova
- National Reference Center for Microfungi and Mycotoxins in Food Chains, Center of Health, Nutrition and Food in Brno, National Institute of Public Health in Prague, 61242 Brno, Czech Republic.
| | - Jarmila Skarkova
- National Reference Center for Microfungi and Mycotoxins in Food Chains, Center of Health, Nutrition and Food in Brno, National Institute of Public Health in Prague, 61242 Brno, Czech Republic.
| | - Annie Pfohl-Leszkowicz
- Department Bioprocess & Microbial Systems, Laboratory Chemical Engineering, INP/ENSA Toulouse, University of Toulouse, UMR 5503 CNRS/INPT/UPS, 31320 Auzeville-Tolosane, France.
| | - Jiri Ruprich
- National Reference Center for Microfungi and Mycotoxins in Food Chains, Center of Health, Nutrition and Food in Brno, National Institute of Public Health in Prague, 61242 Brno, Czech Republic.
| |
Collapse
|
15
|
Nomura M, Ishibashi T, Komoriya T, Nagahara T, Chihara T. Development and inter-laboratory study of a method for quantification of fumonisin B1, B2 and B3 in pet foods. WORLD MYCOTOXIN J 2015. [DOI: 10.3920/wmj2013.1691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
An analytical method to determine fumonisin B1 (FB1), B2 (FB2) and B3 (FB3) in pet foods using a liquid chromatography-electrospray ionization-mass spectrometer (LC-ESI-MS) was developed, and an inter-laboratory study was conducted in eleven laboratories. FB1, FB2 and FB3 were extracted with aqueous acetonitrile. The extract was purified by a multifunctional column, MultiSep 211 Fum, and analysed by LC-ESI-MS. The limit of quantification of fumonisins was estimated to be 0.2 mg/kg for dry and semi-dry pet foods, and 0.1 mg/kg for wet pet food. The calibration curve showed linearity in the range of 0.1-5 ng of fumonisins (0.02-1.0 μg/ml). The values of the mean recovery for FB1 at 0.1-1.0 mg/kg were 93.3-107% and of the relative standard deviation less than 7.9%. These values were 87.3-102 and 8.6% for FB2 and 90.8-102 and 8.6% for FB3, respectively. The mean recovery, repeatability, reproducibility and the Horwitz ratio for FB1 from the inter-laboratory validation study were 92.9-98.9%, 2.6-4.6%, 6.8-10% and 0.41-0.54, respectively. The values for FB2 were 91.5-94.7%, 2.7-5.9%, 6.8-8.9% and 0.33-0.55, respectively, and the values for FB3 were 90.1-94.3%, 3.3-5.9%, 7.3-9.5% and 0.44-0.57, respectively.
Collapse
Affiliation(s)
- M. Nomura
- Fertilizer and Feed Inspection Department, Food and Agricultural Materials Inspection Center, Saitama Shintoshin National Government Building, Kensato Building, Shintoshin 2-1, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| | - T. Ishibashi
- Fertilizer and Feed Inspection Department, Food and Agricultural Materials Inspection Center, Saitama Shintoshin National Government Building, Kensato Building, Shintoshin 2-1, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| | - T. Komoriya
- Fertilizer and Feed Inspection Department, Food and Agricultural Materials Inspection Center, Saitama Shintoshin National Government Building, Kensato Building, Shintoshin 2-1, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| | - T. Nagahara
- Fertilizer and Feed Inspection Department, Food and Agricultural Materials Inspection Center, Saitama Shintoshin National Government Building, Kensato Building, Shintoshin 2-1, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| | - T. Chihara
- Fertilizer and Feed Inspection Department, Food and Agricultural Materials Inspection Center, Saitama Shintoshin National Government Building, Kensato Building, Shintoshin 2-1, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| |
Collapse
|
16
|
Woo C, El-Nezami H. Mycotoxins in Asia: is China in danger? QUALITY ASSURANCE AND SAFETY OF CROPS & FOODS 2015. [DOI: 10.3920/qas2014.x005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- C.S.J. Woo
- Faculty of Science, School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China P.R
| | - H. El-Nezami
- Faculty of Science, School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China P.R
| |
Collapse
|
17
|
|
18
|
|
19
|
Arroyo-Manzanares N, Huertas-Pérez JF, García-Campaña AM, Gámiz-Gracia L. Simple methodology for the determination of mycotoxins in pseudocereals, spelt and rice. Food Control 2014. [DOI: 10.1016/j.foodcont.2013.07.028] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
20
|
Wu F, Bui-Klimke T, Naumoff Shields K. Potential economic and health impacts of ochratoxin A regulatory standards. WORLD MYCOTOXIN J 2014. [DOI: 10.3920/wmj2013.1686] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Ochratoxin A (OTA) is a mycotoxin found in multiple agricultural commodities worldwide. OTA causes renal toxicity in certain animal species, but there is little documented evidence of adverse health effects in humans. Until recently, few nations have established regulations on maximum levels for OTA in commodities. The application of regulations may cause economic loss to food producers, which should be considered alongside potential health benefits from enacting such regulations. We evaluate the potential economic impacts of the recently proposed OTA maximum limits (MLs) for foodstuffs by Health Canada. Potential costs to Canadian food producers and nations exporting to Canada are estimated using data on reported proportion of foodstuffs exceeding OTA ML levels, and market data from the Canadian Importer's Database and the United States Department of Agriculture Global Agricultural Trade System. If the proposed OTA MLs are enforced, estimated annual losses to Canadian food producers could exceed 260 million Canadian dollars (CD), based on proportion of products expected to have OTA levels exceeding the MLs. Wheat and oat producers would experience the greatest proportion of economic loss. The United States is the largest exporter to Canada of foods that would be subject to the proposed MLs, and would experience an estimated annual loss of over 17 million CD; primarily in the infant food, breakfast cereal and raisin industries. The countervailing health benefits of such OTA standards are unclear. These potential health and economic implications should be considered by policymakers when setting regulatory standards on food safety.
Collapse
Affiliation(s)
- F. Wu
- Department of Food Science and Human Nutrition, Department of Agricultural, Food, and Resource Economics, Michigan State University, 469 Wilson Rd, East Lansing, MI 48824, USA
| | - T. Bui-Klimke
- Department of Environmental and Occupational Health, University of Pittsburgh, Bridgeside Point I, 100 Technology Drive, Suite 350, Pittsburgh, PA 15219, USA
| | - K. Naumoff Shields
- Department of Environmental and Occupational Health, University of Pittsburgh, Bridgeside Point I, 100 Technology Drive, Suite 350, Pittsburgh, PA 15219, USA
| |
Collapse
|
21
|
YOSHINARI T, TANAKA T, ISHIKURO E, HORIE M, NAGAYAMA T, NAKAJIMA M, NAITO S, OHNISHI T, SUGITA-KONISHI Y. Inter-Laboratory Study of an LC-MS/MS Method for Simultaneous Determination of Fumonisin B 1, B 2 and B 3 in Corn. Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2013; 54:266-76. [DOI: 10.3358/shokueishi.54.266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
22
|
Sugita-Konishi Y, Kamata Y, Sato T, Yoshinari T, Saito S. Exposure and risk assessment for ochratoxin A and fumonisins in Japan. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2013. [DOI: 10.1080/19440049.2012.743190] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
23
|
Sakuma H, Watanabe Y, Furusawa H, Yoshinari T, Akashi H, Kawakami H, Saito S, Sugita-Konishi Y. Estimated dietary exposure to mycotoxins after taking into account the cooking of staple foods in Japan. Toxins (Basel) 2013; 5:1032-42. [PMID: 23698358 PMCID: PMC3709277 DOI: 10.3390/toxins5051032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 03/25/2013] [Accepted: 05/02/2013] [Indexed: 11/21/2022] Open
Abstract
Mycotoxins are commonly present in cereal grains and are not completely destroyed during their cooking and processing. When mycotoxins contaminate staple foods, the risk for exposure becomes serious. In East Asia, including Japan, rice is consumed as a staple food, and with the increasingly Westernized lifestyle, the consumption of wheat has increased. The mycotoxins commonly associated with rice and wheat are total aflatoxin (AFL) and ochratoxin A (OTA), respectively. This study examined the retention of AFL and OTA during the cooking of rice and pasta. AFL was retained at 83%–89% the initial level after the cooking of steamed rice. In pasta noodles, more than 60% of the OTA was retained. These results show that AFL and OTA are relatively stable during the cooking process, suggesting that a major reduction in the exposure to these mycotoxins cannot be expected to occur by cooking rice and pasta. The estimated exposure assessment at the high consumer level (95th percentile) and the mycotoxin contamination level determined by taking into account these reductions in the present study should be useful for the establishment of practical regulations for mycotoxins in staple foods.
Collapse
Affiliation(s)
- Hisako Sakuma
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan; E-Mails: (H.S.); (Y.W.); (H.F.); (T.Y.)
| | - Yasushi Watanabe
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan; E-Mails: (H.S.); (Y.W.); (H.F.); (T.Y.)
| | - Hiroko Furusawa
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan; E-Mails: (H.S.); (Y.W.); (H.F.); (T.Y.)
| | - Tomoya Yoshinari
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan; E-Mails: (H.S.); (Y.W.); (H.F.); (T.Y.)
| | - Hajime Akashi
- QE Center Research and Development, Quality Assurance Division, Nisshin Seifun Group INC., Tsurugaoka, Fujimino, Saitama 356-8511, Japan; E-Mail:
| | - Hiroshi Kawakami
- Faculty of Home Economics, Kyoritsu Women’s University, Hitotsubashi, Chiyoda, Tokyo 101-0003, Japan; E-Mail:
| | - Shiro Saito
- Department of Sociology, University of Tokyo, 1-1-1, Yayoi, 5 Bunkyo-ku, Tokyo 113-8581, Japan; E-Mail:
| | - Yoshiko Sugita-Konishi
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan; E-Mails: (H.S.); (Y.W.); (H.F.); (T.Y.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +81-3-3700-1141; Fax: +81-3-3700-9049
| |
Collapse
|
24
|
Barberis CL, Landa MF, Barberis MG, Giaj-Merlera G, Dalcero AM, Magnoli CE. Hydrolytic enzymes production by Aspergillus section Nigri in presence of butylated hydroxyanisole and propyl paraben on peanut meal extract agar. Rev Iberoam Micol 2013; 31:131-6. [PMID: 23583262 DOI: 10.1016/j.riam.2013.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 11/14/2012] [Accepted: 02/19/2013] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND In the last years, food grade antioxidants are used safely as an alternative to traditional fungicides to control fungal growth in several food and agricultural products. AIMS In this work, the effect of butylated hydroxyanisole (BHA) and propyl paraben (PP) on two hydrolytic enzyme activity (β-d-glucosidase and α-d-galactosidase) by Aspergillus section Nigri species under different water activity conditions (aW; 0.98, 0.95 and 0.93) and incubation time intervals (24, 48, 72 and 96h) was evaluated on peanut-based medium. METHODS The activity of two glycosidases, β-d-glucosidase and α-d-galactosidase, was assayed using as substrates 4-nitrophenyl-β-d-glucopyranosido and 4-nitrophenyl-α-d-galactopyranosido, respectively. The enzyme activity was determined by the increase in optical density at 405nm caused by the liberation of p-nitrophenol by enzymatic hydrolysis of the substrate. Enzyme activity was expressed as micromoles of p-nitrophenol released per minute. RESULTS The major inhibition in β-d-glucosidase activity of A. carbonarius and A. niger was found with 20mmoll(-1) of BHA or PP at 0.98 and 0.95 aW, respectively, whereas for α-d-galactosidase activity a significant decrease in enzyme activity with respect to control was observed in A. carbonarius among 5 to 20mmoll(-1) of BHA or PP in all conditions assayed. Regarding A. niger, the highest percentages of enzyme inhibition activity were found with 20mmoll(-1) of BHA or PP at 0.95 aW and 96h. CONCLUSIONS The results of this work provide information about the capacity of BHA and PP to inhibit in vitro conditions two of the most important hydrolytic enzymes produced by A. carbonarius and A. niger species.
Collapse
Affiliation(s)
- Carla L Barberis
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nacional N° 36 Km 601 (5800), Río Cuarto, Córdoba, Argentina; Member of the Research Career of CONICET (CIC-CONICET), Argentina
| | - María F Landa
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nacional N° 36 Km 601 (5800), Río Cuarto, Córdoba, Argentina; Fellowship of the CONICET, Argentina
| | - Mauricio G Barberis
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nacional N° 36 Km 601 (5800), Río Cuarto, Córdoba, Argentina; Fellowship of the CONICET, Argentina
| | - Guillermo Giaj-Merlera
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nacional N° 36 Km 601 (5800), Río Cuarto, Córdoba, Argentina; Fellowship of the CONICET, Argentina
| | - Ana M Dalcero
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nacional N° 36 Km 601 (5800), Río Cuarto, Córdoba, Argentina; Member of the Research Career of CONICET (CIC-CONICET), Argentina
| | - Carina E Magnoli
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nacional N° 36 Km 601 (5800), Río Cuarto, Córdoba, Argentina; Member of the Research Career of CONICET (CIC-CONICET), Argentina.
| |
Collapse
|
25
|
Turcotte AM, Scott PM, Tague B. Analysis of cocoa products for ochratoxin A and aflatoxins. Mycotoxin Res 2013; 29:193-201. [PMID: 23564311 PMCID: PMC3712181 DOI: 10.1007/s12550-013-0167-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 03/12/2013] [Accepted: 03/13/2013] [Indexed: 11/18/2022]
Abstract
Eighty-five samples of cocoa products sampled in Canada were analysed for ochratoxin A (OTA) and aflatoxins in 2011–2012. Inclusion of the aflatoxins in this survey required additional method development. Chocolate was extracted with methanol–water plus NaCl, while for cocoa two successive extractions with methanol and methanol–water were made. Extracts were cleaned on an AflaOchra immunoaffinity column (IAC). Determination was by reversed phase high performance liquid chromatography (HPLC). Detection of the aflatoxins was with a post-column photochemical reactor and of OTA by fluorescence detection. Mean limits of quantification (LOQ) of chocolate and cocoa powders were 0.16 ng/g (OTA) and 0.07 ng/g (aflatoxin B1), respectively. Survey results showed that the incidences of OTA above the LOQ in natural cocoa were 15/15 (mean 1.17 ng/g), 20/21 for alkalized cocoa (mean 1.06 ng/g), 9/9 for baking chocolate (mean 0.49 ng/g), 20/20 for dark chocolate (mean 0.39 ng/g), 7/10 for milk chocolate (mean 0.19 ng/g), 5/5 for cocoa liquor (mean 0.43 ng/g), and 0/5 for cocoa butter. These results confirm our previous work with OTA. In the same samples, incidences of aflatoxin B1 above the LOQ were 14/15 for natural cocoa (mean 0.86 ng/g), 20/21 for alkalized cocoa (mean 0.37 ng/g), 7/9 for baking chocolate (mean 0.22 ng/g), 16/20 for dark chocolate (mean 0.19 ng/g), 7/10 for milk chocolate (mean 0.09 ng/g), 4/5 for cocoa liquor (mean 0.43 ng/g), and 0/5 for cocoa butter. Both aflatoxins and OTA were confirmed by HPLC-MS/MS when OTA or aflatoxin levels found were above 2 ng/g in cocoa.
Collapse
|
26
|
|
27
|
A method for multiple mycotoxin analysis in wines by solid phase extraction and multifunctional cartridge purification, and ultra-high-performance liquid chromatography coupled to tandem mass spectrometry. Toxins (Basel) 2012; 4:476-86. [PMID: 22822458 PMCID: PMC3398421 DOI: 10.3390/toxins4060476] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 06/11/2012] [Accepted: 06/12/2012] [Indexed: 11/29/2022] Open
Abstract
An analytical method using two solid phase extractions and ultra-high-performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS) was developed for the identification and quantification of 14 mycotoxins (patulin, deoxynivalenol, aflatoxins B1, B2, G1, G2, M1, T-2 toxin, HT-2 toxin, zearalenone, fumonisins B1, B2, B3, and ochratoxin A) in domestic and imported wines. Mycotoxins were purified with an Oasis HLB cartridge, followed by a MultiSepTM #229 Ochra. As a result, sufficient removal of the pigments and highly polar matrices from the red wines was achieved. UHPLC conditions were optimized, and 14 mycotoxins were separated in a total of 13 min. Determinations performed using this method produced high correlation coefficients for the 14 mycotoxins (R > 0.990) and recovery rates ranging from 76 to 105% with good repeatability (relative standard deviation RSD < 12%). Twenty-seven samples of domestic and imported wines were analyzed using this method. Although ochratoxin A (OTA) and fumonisins (FMs) were detected in several samples, the FM levels were less than limits of quantification (LOQs) (1 μg/L), and even the largest of the OTA levels was below the EU regulatory level (2 μg/L). These results suggest that the health risk posed to consumers from the wines available in Japan is relatively low.
Collapse
|
28
|
Coronel M, Marín S, Cano-Sancho G, Ramos A, Sanchis V. Exposure assessment to ochratoxin A in Catalonia (Spain) based on the consumption of cereals, nuts, coffee, wine, and beer. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2012; 29:979-93. [DOI: 10.1080/19440049.2012.660708] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- M.B. Coronel
- a Food Technology Department , UTPV-XaRTA-CRA, University of Lleida , Rovira Roure 191 , E-25198 Lleida , Spain
| | - S. Marín
- a Food Technology Department , UTPV-XaRTA-CRA, University of Lleida , Rovira Roure 191 , E-25198 Lleida , Spain
| | - G. Cano-Sancho
- a Food Technology Department , UTPV-XaRTA-CRA, University of Lleida , Rovira Roure 191 , E-25198 Lleida , Spain
| | - A.J. Ramos
- a Food Technology Department , UTPV-XaRTA-CRA, University of Lleida , Rovira Roure 191 , E-25198 Lleida , Spain
| | - V. Sanchis
- a Food Technology Department , UTPV-XaRTA-CRA, University of Lleida , Rovira Roure 191 , E-25198 Lleida , Spain
| |
Collapse
|
29
|
Scott P. Recent research on fumonisins: a review. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2012; 29:242-8. [DOI: 10.1080/19440049.2010.546000] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
30
|
Duarte SC, Alves MR, Pena A, Lino CM. Determinants of ochratoxin A exposure--a one year follow-up study of urine levels. Int J Hyg Environ Health 2012; 215:360-7. [PMID: 22237049 DOI: 10.1016/j.ijheh.2011.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 10/26/2011] [Accepted: 12/01/2011] [Indexed: 11/29/2022]
Abstract
Dietary exposure to the ochratoxin A (OTA) occurring in Portugal is characterized by a high frequency of contamination of the consumed foodstuffs, although at low levels. The exposure bears significance for the total food consumed, and not for a particular one. Biomonitoring studies are thus fundamental in simplifying the evaluation of exposure, with no need to examine the entire range of consumed foodstuffs. Biomonitoring studies further allow the identification of host factors as predictors of OTA exposure in epidemiologic studies, the results of which are merited for targeting intervention strategies by public health authorities and advising official regulatory decisions. Using a longitudinal approach, this study examined factors related to OTA exposure in the adult population over a one-year period. Anthropometric measures, season of the year and region were the selected factors correlated with OTA exposure biomarker. Urine samples from 95 inhabitants from six Portuguese main geographical areas were assayed through spectrofluorimetric detection. Exposure to OTA proved to markedly increase in winter, and gender differences were observed only in summer, which might be related to different dietary patterns not only between seasons, but also between genders. The same rationale may also serve the observed statistically significant differences between some regions. No other strong association upon the remaining determinants under testing was observed. These observations reinforce the need for OTA exposure evaluation, possibly specifically targeting the staple foods or dietary habits that sustain potential predictors or determinants of exposure.
Collapse
Affiliation(s)
- S C Duarte
- Group of Health Surveillance, Center of Pharmaceutical Studies, University of Coimbra, Health Sciences Campus, 3000-548 Coimbra, Portugal.
| | | | | | | |
Collapse
|
31
|
Turcotte AM, Scott PM. Ochratoxin A in cocoa and chocolate sampled in Canada. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2011; 28:762-6. [PMID: 21623500 PMCID: PMC3118505 DOI: 10.1080/19440049.2010.508796] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In order to determine the levels of ochratoxin A (OTA) in cocoa and cocoa products available in Canada, a previously published analytical method, with minor modifications to the extraction and immunoaffinity clean-up and inclusion of an evaporation step, was initially used (Method I). To improve the low method recoveries (46–61%), 40% methanol was then included in the aqueous sodium bicarbonate extraction solvent (pH 7.8) (Method II). Clean-up was on an Ochratest™ immunoaffinity column and OTA was determined by liquid chromatography (LC) with fluorescence detection. Recoveries of OTA from spiked cocoa powder (0.5 and 5 ng g−1) were 75–84%; while recoveries from chocolate were 93–94%. The optimized method was sensitive (limit of quantification (LOQ) = 0.07–0.08 ng g−1), accurate (recovery = 75–94%) and precise (coefficient of variation (CV) < 5%). It is applicable to cocoa and chocolate. Analysis of 32 samples of cocoa powder (16 alkalized and 16 natural) for OTA showed an incidence of 100%, with concentrations ranging from 0.25 to 7.8 ng g−1; in six samples the OTA level exceeded 2 ng g−1, the previously considered European Union limit for cocoa. The frequency of detection of OTA in 28 chocolate samples (21 dark or baking chocolate and seven milk chocolate) was also 100% with concentrations ranging from 0.05 to 1.4 ng g−1; one sample had a level higher than the previously considered European Union limit for chocolate (1 ng g−1).
Collapse
Affiliation(s)
- A-M Turcotte
- Food Research Division, Bureau of Chemical Safety, Food Directorate, Health Canada, 251 Sir Frederick Banting Driveway, Ottawa, ON, Canada
| | | |
Collapse
|
32
|
Shephard G, Berthiller F, Burdaspal P, Crews C, Jonker M, Krska R, MacDonald S, Malone B, Maragos C, Sabino M, Solfrizzo M, van Egmond H, Whitaker T. Developments in mycotoxin analysis: an update for 2009-2010. WORLD MYCOTOXIN J 2011. [DOI: 10.3920/wmj2010.1249] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This review highlights developments in mycotoxin analysis and sampling over a period between mid-2009 and mid-2010. It covers the major mycotoxins aflatoxins, Alternaria toxins, ergot alkaloids, fumonisins, ochratoxin, patulin, trichothecenes, and zearalenone. New and improved methods for mycotoxins continue to be published. Immunological-based method developments continue to be of wide interest in a broad range of formats. Multimycotoxin determination by LC-MS/MS is now being targeted at the specific ranges of mycotoxins and matrices of interest or concern to the individual laboratory. Although falling outside the main emphasis of the review, some aspects of natural occurrence have been mentioned, especially if linked to novel method developments.
Collapse
Affiliation(s)
- G. Shephard
- PROMEC Unit, Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa
| | - F. Berthiller
- Department for Agrobiotechnology (IFA-Tulln), University of Natural Resources and Applied Life Sciences Vienna, Center for Analytical Chemistry, Christian Doppler Laboratory for Mycotoxin Research, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - P. Burdaspal
- National Centre for Food, Spanish Food Safety and Nutrition Agency, Carretera a Pozuelo Km 5.1, 28220 Majadahonda (Madrid), Spain
| | - C. Crews
- The Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, United Kingdom
| | - M. Jonker
- RIKILT Institute of Food Safety, Cluster Natural Toxins & Pesticides, P.O. Box 230, 6700 AE Wageningen, The Netherlands
| | - R. Krska
- Department for Agrobiotechnology (IFA-Tulln), University of Natural Resources and Applied Life Sciences Vienna, Center for Analytical Chemistry, Christian Doppler Laboratory for Mycotoxin Research, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - S. MacDonald
- The Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, United Kingdom
| | - B. Malone
- Trilogy Analytical Laboratory, 870 Vossbrink Drive, Washington, MO 63090, USA
| | - C. Maragos
- USDA, ARS, National Center for Agricultural Utilization Research, 1815 N. University St, Peoria, IL 61604, USA
| | - M. Sabino
- Instituto Adolfo Lutz, Av Dr Arnaldo 355, 01246-902 São Paulo/SP, Brazil
| | - M. Solfrizzo
- Institute of Sciences of Food Production, National Research Council, Via Amendola 122/o, 70126 Bari, Italy
| | - H. van Egmond
- RIKILT Institute of Food Safety, Cluster Natural Toxins & Pesticides, P.O. Box 230, 6700 AE Wageningen, The Netherlands
| | - T. Whitaker
- Biological and Agricultural Engineering Department, N.C. State University, P.O. Box 7625, Raleigh, NC 27695-7625, USA
| |
Collapse
|
33
|
Astoreca AL, Magnoli CE, Dalcero AM. Ecophysiology of Aspergillus section nigri species potential ochratoxin a producers. Toxins (Basel) 2010; 2:2593-605. [PMID: 22069566 PMCID: PMC3153178 DOI: 10.3390/toxins2112593] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 09/28/2010] [Accepted: 10/26/2010] [Indexed: 11/25/2022] Open
Abstract
After aflatoxins, ochratoxin A (OTA) is the most studied mycotoxin due to the toxicological significance in human and animal diets. OTA presence has been extensively reported worldwide in the last decade in several agricultural products. The main OTA producer in tropical and temperate climates is Aspergillus carbonarius followed by species belonging to A. niger aggregate. Currently, many scientists worldwide have studied the influence of water activity and temperature for growth and biosynthesis of OTA by these species on synthetic media. This article reviews ecophysiological studies of Aspergillus section Nigri strains on synthetic media and natural substrates. The results of these investigations suggest that significant amounts of OTA can be produced in only five days and that the use of different storage practices, such as a(W) and temperature levels below 0.930 and 15 °C, respectively, allow controlling fungal contamination and minimizing the OTA production in several products as peanuts, corn, dried grapes and derived products for human consumption.
Collapse
Affiliation(s)
- Andrea L Astoreca
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Córdoba, Argentina.
| | | | | |
Collapse
|