The Investigation of Total Aflatoxin and Total Fumonisin Residues in Fish Feed Collected In Some Provinces of Turkey
In this study 87 fish feed samples were randomly collected from feed mills and fish farming establishments from 14 provinces in Turkey to determine the occurrence of total aflatoxin (AF) and total fumonisin contamination. The quantitative analysis of total AF and total fumonisin of the samples was carried out using commercial kits. The samples were analysed by microplate reader. Total AF residues were found in 86 (98.85%) of 87 analyzed samples. The avarage value for total AF (AFB1, AFB2, AFG1, AFG2) in positive samples was found as 8.776±4.178 µg/kg ranged from 1.023-17.566 µg/kg, and these values were found to be less than the recommended level 20 ppb (Food Drug Administration). Total fumonisin (B1, B2, B3) residues were found in 49 (56.98%) of 86 samples analysed. The avarage value for total fumonisin in positive samples was found as 0.3028±0.2584 mg/kg ranged from 0.0107-0.9278 mg/kg. These values were below the tolerable limit of 10 ppm for fumonisin (B1, B2) announced by Ministry of Agriculture and Forestry in Turkey. It was suggested that although mycotoxin residues were detected in the collected feeds, these values remained below the tolerable values.
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