Open Access

The efficiency of mycotoxin binding by sorbents in the in vitro model using a naturally contaminated animal feed


Cite

Fig. 1.

Scheme of the experiment to evaluate selected sorbents’ binding effectiveness to mycotoxin animal feed contaminants PBS – phosphate-buffered saline; LC-MS/MS – liquid chromatography – tandem mass spectrometry
Scheme of the experiment to evaluate selected sorbents’ binding effectiveness to mycotoxin animal feed contaminants PBS – phosphate-buffered saline; LC-MS/MS – liquid chromatography – tandem mass spectrometry

Mycotoxin sorption results for the selected sorbents in the gastric phase (pH 3.5)

DON FB1 FB2 HT-2 OTA AFL B1 T-2 ZEN
Bentonite 10% 21% 33% 9% 0% 100% 4% 5%
Calcium bentonite 4% 93% 91% 10% 14% 100% 12% 12%
Zeolite 1% 71% 85% 3% 3% 100% 1% 1%
Calcium lignosulphonate 87% -* -* 54% 52% 0% 31% 17%
Activated charcoal 70% 94% 80% 100% 99% 100% 99% 98%
Sepiolite 3% 91% 83% 72% 94% 100% 93% 96%
Silica 3% 12% 27% 8% 1% 84% 1% 1%
Attapulgite 7% 9% 79% 13% 21% 100% 32% 27%
Ground attapulgite 2% 38% 34% 10% 17% 100% 32% 52%

Mycotoxin levels in tested feed samples spiked with a mixture of standards

Mycotoxin Spiking level (μg/kg)
Aflatoxin B1 5
Deoxynivalenol 900
T-2 toxin 50
HT-2 toxin 50
Ochratoxin A 50
Fumonisin B1 250
Fumonisin B2 250
Zearalenone 100

Results of mycotoxins binding by sorbents in trial with naturally contaminated feed in the gastric (pH 3.5) and intestinal (pH 7.0) phases

DON pH 3.5 DON pH 7.0 OTA pH 3.5 OTA pH 7.0 ZEN pH 3.5 ZEN pH 7.0
Bentonite 5% -* 30% 92% 9% -*
Calcium bentonite 1% -* 35% 70% 9% -*
Zeolite 4% -* 54% 65% 10% -*
Calcium lignosulphonate 11% -* 34% 50% 7% -*
Activated charcoal 3% -* 39% 70% 4% -*
Sepiolite 1% -* 53% 89% 6% -*
Silica 4% -* 49% 81% 11% -*
Attapulgite 2% -* 54% 76% 8% -*
Ground attapulgite 3% -* 55% 87% 5% -*

Mycotoxin binding results for the mixture of sepiolite and calcium lignosulphonate

DON OTA ZEN
Sepiolite: calcium lignosulfonate 20 : 80 72% 29% 36%
Sepiolite: calcium lignosulfonate 40 : 60 75% 63% 41%
Sepiolite: calcium lignosulfonate 60 : 40 71% 68% 78%
Sepiolite: calcium lignosulfonate 80 : 20 62% 82% 82%

Mycotoxin desorption results for the selected sorbents in the intestinal phase (pH 7.0)

DON FB1 FB2 HT-2 OTA AFL B1 T-2 ZEN
Bentonite -* 56% 40% -* -* 0% -* -*
Calcium bentonite -* 73% 45% -* -* 0% -* -*
Zeolite -* 80% 56% -* -* 0% -* -*
Calcium lignosulphonate 100% 100% 100% 100% 100% -* 100% -*
Activated charcoal 59% 2% 2% 0% 0% 0% 1% 1%
Sepiolite -* 22% 13% 58% 17% 0% 20% 5%
Silica -* -* 100% -* -* 40% -* -*
Attapulgite -* -* 24% -* 77% 0% 95% 74%
Ground attapulgite -* 46% 23% -* 83% 0% 87% 72%
eISSN:
2450-8608
Language:
English
Publication timeframe:
4 times per year
Journal Subjects:
Life Sciences, Molecular Biology, Microbiology and Virology, other, Medicine, Veterinary Medicine