• (adj): Not relating to or produced by enzymes.
    Example: "Nonenzymatic systems"

Some articles on nonenzymatic:

Browning (food Process) - Nonenzymatic Browning
... Nonenzymatic, or oxidative, browning is a chemical process that produces a brown color in foods without the activity of enzymes ... The two main forms of nonenzymatic browning are caramelization and the Maillard reaction ...