Journal
FOOD RESEARCH INTERNATIONAL
Volume 77, Issue -, Pages 643-648Publisher
ELSEVIER
DOI: 10.1016/j.foodres.2015.08.032
Keywords
Aflatoxin B-1; Zearalenone; Ochratoxin A; Deoxynivalenol; Decontamination; Fermentation by-products
Categories
Funding
- Conselho Nacional de Desenvolvimento Cientifico e Technologico (CNPq) [481561/201 1-0]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2011/03410-0]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [11/03410-0] Funding Source: FAPESP
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In vitro tests were performed to determine the ability of beer fermentation residue (BFR) containing Saccharomyces cerevisiae to bind aflatoxin B-1 (AFB(1)), zearalenone (ZEA), ochratoxin A (OTA) and deoxynivalenol (DON). BFR was obtained from a microbrewery, dried and ground, resulting in approximately 1.0 x 10(10) S. cerevisiae cells g(-1) BFR. Binding assays consisted of suspending BFR (100 mg) in 10 mL of buffer solution (pH 3.0 or 6.5) spiked with AFB(1), ZEA, OTA or DON (2.0 mu g ml(-1) of each mycotoxin), incubation (60 min, 25 degrees C) followed by centrifugation. The supernatants were analyzed by high performance liquid chromatography. BFR had higher binding capacity for ZEA (75.1% and 77.5% at pH 3.0 and 6.5, respectively), when compared with AFB(1), OTA and DON (less than 60% and 40% at pH 3.0 and 6.5, respectively). BFR also produced linear isotherms for ZEA at both pH values, hence indicating a potential application of industrial fermentation by-products containing yeast cells in reducing the bioavailability of ZEA in contaminated feedstuffs. However, in vivo studies are required to prove its efficacy in livestock and poultry. (C) 2015 Elsevier Ltd. All rights reserved.
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