Enzyme recovery and recycling following hydrolysis of ammonia fiber explosion-treated corn stover |
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Authors: | Bernie Steele Srini Raj John Nghiem Mark Stowers |
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Institution: | (1) MBI International, 3900 Collins Road, 48910 Lansing, MI |
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Abstract: | Both cellulase and cellobiase can be effectively recovered from hydrolyzed biomass using an ultrafiltration recovery method.
Recovery of cellulase ranged from 60 to 66.6% and for cellobiase from 76.4 to 88%. Economic analysis shows that cost savings
gained by enzyme recycling are sensitive to enzyme pricing and loading. At the demonstrated recovery of 60% and current loading
of 15 Filter paper units of cellulase/g of glucan, enzyme recycling is expected to generate a cost savings of approx 15%.
If recovery efficiency can be improved to 70%, the savings will increase to >25%, and at 90% recovery the savings will be
50%. |
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Keywords: | Enzyme recycle biomass ammonia fiber explosion ethanol corn stover |
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