Microbial preparation for degrading zearalenone and preparation method thereof
A technology of zearalenone and microbial preparation, applied in the field of zearalenone-degrading microbial preparation and its preparation, can solve the problem that the degradation product cannot be non-toxic, the activity of ZEN microbial degrading bacteria is low, and it is difficult to realize production and utilization And other issues
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Embodiment 1
[0024] (1) Inoculate the Stapella strain with the preservation number CGMCC No. 17759 into LB liquid medium (inoculum size: 1%), and culture at 37° C. and 200 r for 24 hours to obtain an activated seed liquid of Stapella once. Continue to inoculate the once-activated seed liquid of Staplepia spp. into LB liquid culture medium (inoculum size 1%), and after culturing at 37° C. and 200 r for 36 hours, the Tapeella bacterium liquid is obtained.
[0025] The LB medium contains (per liter) 10g of peptone, 10g of sodium chloride, 5g of yeast extract powder, the pH value is adjusted to 7.2, and steam sterilization at 121°C for 20min.
[0026] (2) Inoculate the strain of Bacillus velesi with the preservation number CGMCC No. 17328 into LB liquid culture medium (inoculum size 1%), and cultivate it at 37° C. at 200 r for 24 hours to obtain an activated seed liquid of Bacillus velesii once. Continue to inoculate the once-activated Bacillus veleisi seed liquid into the LB liquid medium (in...
Embodiment 2
[0040] (1) Inoculate the Stapella strain with the preservation number CGMCC No. 17759 into LB liquid medium (inoculum size: 1.5%), and culture it at 35° C. and 200 r for 23 hours to obtain an activated seed liquid of Stapella once. Continue to inoculate the once-activated seed solution of Staplepsia into LB liquid medium (inoculum size: 1.5%), and culture it at 39°C and 220r for 36 hours to obtain the Staplesia bacteria solution.
[0041] The LB medium contains (per liter) 10g of peptone, 10g of sodium chloride, 5g of yeast extract powder, the pH value is adjusted to 7.2, and steam sterilization at 121°C for 20min.
[0042] (2) Inoculate the strain of Bacillus velesi with the preservation number CGMCC No. 17328 into LB liquid culture medium (inoculum size: 1.5%), and cultivate it at 39°C and 220r for 25 hours to obtain an activated seed liquid of Bacillus velesii once. Continue to inoculate the once-activated Bacillus veleisi seed liquid into the LB liquid medium (1.5% inoculu...
Embodiment 3
[0056] (1) Inoculate the Stapella strain with the preservation number CGMCC No. 17759 into LB liquid medium (inoculum size: 1.3%), and culture it at 39°C and 220r for 25 hours to obtain an activated seed liquid of Stapella once. Continue to inoculate the once-activated seed solution of Staplepsia into LB liquid medium (inoculum size 1.3%), and after culturing at 35° C. and 200 r for 34 hours, the Tapella bacterium fluid is obtained.
[0057] The LB medium contains (per liter) 10g of peptone, 10g of sodium chloride, 5g of yeast extract powder, the pH value is adjusted to 7.2, and steam sterilization at 121°C for 20min.
[0058] (2) Inoculate the strain of Bacillus velesi with the preservation number CGMCC No. 17328 into LB liquid medium (inoculum size: 1.3%), and culture it at 35° C. and 200 r for 23 hours to obtain an activated seed liquid of Bacillus velesii once. Continue to inoculate the once-activated Bacillus velesii seed liquid into the LB liquid medium (1.3% inoculum si...
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