Manus and UT Austin Advance Biomanufacturing Product Recovery Through BioMADE Program
Manus, The BioAlternatives Company®, and the University of Texas at Austin say they have completed aBioMADE-sponsored program to make industrial yeast fermentation more efficient and sustainable.
The project, carried out with Hal Alper, PhD, and the Alper Lab in UT Austin’s McKetta department of chemical engineering, engineered yeast to disrupt their own cell walls at the end of fermentation. This programmed lysis approach simplifies downstream processing by reducing reliance on energy-intensive mechanical disruption and removes the need for hazardous solvent-based extraction, according to the researchers.
The result, they add, is lower production costs and improved sustainability across a broad range of bioalternative products that accumulate inside cells, including lipids, proteins, vitamins, pigments, biosurfactants, and polysaccharides.
Reduced mechanical separation energy requirements
The team said they demonstrated the technology up to pilot scale (300 liters) for two industrially relevant yeasts. InYarrowia lipolytica, engineered strains enabled a reduction in mechanical separation energy requirements by more than 50 percent. InSaccharomyces cerevisiae, the team achieved autolysis in a relevant production strain. They pointed out that the work advanced the technology from laboratory demonstration to integrated pilot operation.
“Downstream processing is one of the largest hidden costs in biomanufacturing, and it heavily influences whether a bioalternative can compete on price. By engineering yeast to disrupt their own cell walls, we reduce cost, energy, and complexity, which widens the range of products that can be made economically and sustainably at scale,” says Christine Santos, PhD, chief technology officer, Manus. By cutting processing intensity and improving recovery, these advances strengthen the case for domestic biomanufacturing.
“This work uniquely combined academic and industrial settings to take bench-scale discoveries and more rapidly translate them to higher technology readiness,” adds Alper. “This technology finally helps to address the challenge of producing cheaper intracellular products that traditionally require high-cost separations and more laborious process steps.”
The scientists note that the technology has broad application across many products that are made and accumulate inside microbial cells. By cutting processing intensity and improving recovery, these advances strengthen the case for domestic biomanufacturing built on abundant, low-cost American feedstocks.
NewsBiomanufacturingBiosurfactantsDownstream processFermentation byproductsLipidProteinsVitamin supplementationYeastThe BioAlternatives CompanyPrevious article
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