Occurrence of Aflatoxin M1 in cow milk in El Salvador: Results from a two-year survey

Toxicology Reports
Oscar Peña-RodasRoberto Hernandez-Rauda

Abstract

Aflatoxin M1 (AFM1) is a metabolite of Aflatoxin B1 (AFB1) and is excreted through cow´s milk. AFM1 contamination of milk is extended geographically and there might be seasons-related variations for both prevalence and contents, with higher than average values in regions with long periods of drought like El Salvador. Therefore, this project quantified AFM1 levels in raw cow milk and AFs in cattle feedstuffs, during the transitional dry-rainy seasons of two consecutive years and it determined the variation of occurrence and contents associated to drought. Significant variations were shown from year to year in the prevalence of contamination (30% vs. 20%) and in the average levels of AFM1 in milk (0.056 vs 0.039 μg/kg), associated with drought and increased temperature. The AFs median levels raised significantly with the drought period (from 22.5 to 10.3 μg/kg). A significant relationship was demonstrated between AFs levels and those of AFM1, both in the year with drought and without that condition. AFM1 positive cases and its levels in milk increase in drought and hot conditions, AFs levels in the cattle feed tend to be higher with the same, as well. Both relationship between AFs and AFM1 levels and their association with drough...Continue Reading

Citations

Aug 7, 2020·Toxins·Byron Puga-TorresCarlos Gómez-Bravo
Jan 14, 2021·Toxins·Yun GuanKamil Kuca
Oct 27, 2020·Toxicology Reports·Nourin TarannumSahana Parveen
May 13, 2021·Comprehensive Reviews in Food Science and Food Safety·Abdoulie JallowPeiwu Li

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Methods Mentioned

BETA
AFM
enzyme linked immunosorbent assay
ELISA

Software Mentioned

SPSS Statistics
NEOGEN VERATOX

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