Occurrence and bioacessibility of mycotoxins in fish feed.

In this study Aflatoxin B (AFB), ochratoxin A (OTA) and zearalenone (ZEN) occurrence in fish feed, regarding its chemical composition, were investigated. Besides, AFB bioaccessibility to fish was evaluated by in vitro digestion. Mycotoxins were extracted by QuEChERS and quantified by HPLC-FLD.

Peroxidase as a simultaneous degradation agent of ochratoxin A and zearalenone applied to model solution and beer.

The aim of this study was to evaluate the action of the commercial peroxidase (POD) enzyme (Armoracia rusticana) on the simultaneous degradation of ochratoxin A (OTA) and zearalenone (ZEA) in model solution and beer. For this purpose, the reaction parameters for POD action were optimized, POD application in the degradation of mycotoxins in model solution and beer was evaluated and the kinetic parameters of POD were defined (Michaelis-Menten constant - K and maximal velocity - V). In the reaction conditions (pH 7, ionic strength of 25 mM, incubation at 30 °C, addition of 26 mM HO and 1 mM potassium ion), POD (0.

Sources, quantification techniques, associated hazards, and control measures of mycotoxin contamination of aquafeed.

With the productive intensification of fish farming, the partial or total replacement of fishmeal by ingredients of plant origin became a reality within the feed industry, with the aim of reducing costs. However, this practice increased the impact of mycotoxin contamination. Studies have shown that mycotoxins can induce various disorders in fish, such as cellular and organic alterations, as well as impair functional and morphological development, and, in more severe cases, mortality.

Inhibition of in vitro trichothecenes production by microalgae phenolic extracts.

There is evidence that microalgae phenolic compounds can inhibit the growth of toxigenic fungi. This study aimed to evaluate the ability of microalgae phenolic extracts to inhibit trichothecene production by Fusarium genus and thereby identify parameters that can promote a new technology to avoid contamination of crops by mycotoxins. The microalgae phenolic acids (Spirulina sp.

Aflatoxin M and B in Colombian milk powder and estimated risk exposure.

Aflatoxin M (AFM) and aflatoxin B (AFB) were determined in 51 milk powder samples purchased from different grocery stores located in the Caribbean region of Colombia. Analysis was conducted using QuEChERS extraction and high-performance liquid chromatography with fluorescence detection. Results from the analytical method showed recovery ranges from 65% to 110% and relative standard deviations lower than 20%.