Modifiers matching catalyst:

• cationic,
• auxiliary,
• metal,
• single,
• biological,
• liquid,
• external,
• acidic,
• heterogeneous,
• optical,
• acid,
• related,
• volatile,
• alternative,
• possible,
• heavy,
• chemical,
• metallic,
• complex,
• active,
• soluble,
• precious,
• common,
• natural,
• useful,
• enzymatic,
• granular,
• traditional,
• diverse,
• necessary,
• ferromagnetic,
• expensive,
• suitable,
• solid,
• base,
• extraneous,
• homogeneous,
• cheap,
• major,
• appropriate,
• benign,
• environmental,
• cultural,
• macromolecular,
• basic,
• proteinaceous,
• usual,
• strong,
• conventional,

Simple categories matching proteinaceous:

• material,
• structure,
• polymer,
• substance,
• part,
• molecule,
• substrate,
• compound,
• adhesive,
• macromolecule,
• agent,
• drug,
• food,
• stain,
• fibre,
• binder,
• antigen,
• surface,
• catalyst,
• component,
• fiber,
• carrier,
• feed,
• medium,
• matrix,
• meat,
• fluid,
• content,
• membrane,