Catsalyze, scaffolding technology
Our first biocatalysis application

Catsalyze's route to natural Vanillin

Fermentation makes natural vanillin — at a cost. Vanillin poisons the same cells that produce it, capping yields, and the biocatalyst rarely survives past one batch. We took the enzyme out, kept it working and gained back both.

Ferulic acid converted to vanillin by a scaffold-loaded enzyme inside a glass reactor
The bottleneck

In microbial fermentation, vanillin itself is toxic to the producing strain, which limits substrate loading and final titers. Part of what's fed also goes to cell growth and maintenance rather than product, and side products cut into yield.

Our approach

A single-step cell-free reaction, run by the enzyme displayed in multiple copies on our PRX scaffold — where the substrate has no destination other than product, and no cell to feed.

The OPEX effect

More product per unit of substrate, no biomass to feed or dispose of, and a scaffolded enzyme that stays stable and reusable across cycles.

The process

01
Ferulic acid

Bio-based substrate sourced from agricultural side streams.

02
Loaded scaffold

Multiple copies of the enzyme are displayed on one large protein ring — packing more activity per particle, and easing catalyst recycling.

03
Conversion & Recovery

No cells, no biomass — just substrate and enzyme in mild aqueous conditions. Near-complete conversion to vanillin, and a catalyst easily recovered for reuse.

04
Purification

The vanillin stream moves straight into standard purification steps — the same lines already used for fermentation-derived vanillin, no new infrastructure required.

Reaction scheme: ferulic acid is converted to vanillin by the Catsalyze variant enzyme
Process illustration: ferulic acid enters a stirred reactor, then a column packed with scaffolded catalyst, and vanillin comes out

The same reasoning applies beyond vanillin

Wherever an enzymatic route is limited by substrate or cofactor cost, or by catalyst loss and inefficiency, scaffolding is worth exploring. We look at terpenes, chiral amines, rare sugars, and cosmetic actives, and evaluate the molecules our partners bring us for co-development, partnership or licensing.

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