Abstract
Background: In Jordan as in other worldwide countries, mycotoxins are considered a serious national problem in food supplies. As a result, almost all nations are setting and adopting different regulations targeting the control of mycotoxins levels in the domestic food supply, including the problem of reliable sampling and analysis methods. Objective: It is necessary to improve and give evidence of analytical abilities of laboratories within Jordan and developing countries enabling them to monitor mycotoxins effectively in food to overcome non-tariff obstacles. Methods: We analyzed 40 samples from wheat, corn, dried fig and dried coffee beans for total aflatoxin content using High Pressure Liquid Chromatography (HPLC) and Enzyme Linked Immunesorbent Assay (ELISA) methods. Results: 40% of samples from wheat, 60% from corn, 30% from dried fig, and 50% from dried coffee beans were found positive when speaking of total aflatoxins, with average values between 1.14 and 4.12 μg/kg. Obtained results allow considering all tested food samples as fit for human consumption if compared with the labeled regulatory limit of allowed aflatoxins in the European Union. In detail, the limit of detection and the limit of quantification for methods used in this study were significantly lower than the maximum limits established by the European Union. Highlights: The procedure used in this study is suitable for detection of mycotoxins at very low concentration.
Highlights
Mycotoxins are considered secondary metabolites produced by toxigenic mold strains, and associated with severe health problems when ingested, inhaled or absorbed
After the collection, samples were transferred to the laboratory and prepared for subsequent High Pressure Liquid Chromatography (HPLC) and Enzyme Linked Immunesorbent Assay (ELISA) analyses according to AOAC 977.16 with relation to size reduction and mixing
Recovery values (Table 2) confirmed that the optimal recovery was obtained in both HPLC and ELISA
Summary
Mycotoxins are considered secondary metabolites produced by toxigenic mold strains, and associated with severe health problems when ingested, inhaled or absorbed. These severe health complications include acute toxic, carcinogenic, mutagenic teratogenic and estrogenic effects. In Jordan as in other worldwide countries, mycotoxins are considered a serious national problem in food supplies. Almost all nations are setting and adopting different regulations targeting the control of mycotoxins levels in the domestic food supply, including the problem of reliable sampling and analysis methods. The limit of detection and the limit of quantification for methods used in this study were significantly lower than the maximum limits established by the European Union. Highlights: The procedure used in this study is suitable for detection of mycotoxins at very low concentration
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