Multigram-scale stereoselective synthesis of neurosteroid isomers by gut microbial isolates using plant biomass-derived medium.
Gicana RG, Wang PH, Wu TY, Huang YH, Huang MH
Sustainable Biotech
Waste left over from foods you already eat — sugarcane molasses and the pulp from soybeans — can now serve as the raw material to make life-changing neurological medicines, turning agricultural leftovers into pharmaceutical gold.
Researchers found that certain gut bacteria can convert a common hormone into rare brain-calming compounds with remarkable precision. Instead of expensive lab ingredients, they fed these bacteria a cheap mix of sugarcane syrup and the leftover pulp from making soy milk. The result was a dramatic drop in cost and pollution while producing pharmaceutical-quality medicine at industrial scale.
Key Findings
Three gut bacterial strains each produced a different neurosteroid isomer with high stereospecificity, eliminating the need for costly chiral separation steps.
Using a plant-derived medium made from sugarcane molasses and enzymatically treated okara (soybean pulp), researchers achieved over 95% conversion of progesterone into target neurosteroids.
Compared to standard lab growth media, the plant-based medium reduced production costs by 90% and carbon footprint by 95% in multigram-scale batch trials.
chevron_right Technical Summary
Scientists used gut bacteria fed on sugarcane and soybean byproducts to manufacture brain-active medicines at scale, cutting production costs by 90% and carbon emissions by 95% compared to conventional lab media — all without any animal-derived ingredients.
Abstract Preview
We present a sustainable microbial platform utilizing gut bacteria and a plant-based medium for stereoselective neurosteroid biosynthesis. Through bioinformatics- and structural biology-guided scre...
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