Research Topic · Peer-Reviewed

Enzyme Activity

Enzyme activity is the measurable catalytic capacity of an enzyme, defined as the rate at which it converts substrate into product under specified conditions. It is quantified through enzyme assays that follow the appearance of product or disappearance of substrate over time, with results expressed in enzyme units o…

Curated from this journal's research 📚 12 peer-reviewed articles cited Cited 45× across the literature 🔖 ISSN 2690-4829 🗓 Reviewed July 2026

Overview

Enzyme activity is the measurable catalytic capacity of an enzyme, defined as the rate at which it converts substrate into product under specified conditions. It is quantified through enzyme assays that follow the appearance of product or disappearance of substrate over time, with results expressed in enzyme units or, when normalised to total protein, as specific activity, a key indicator of purity during isolation. Activity depends on intrinsic catalytic properties and on the reaction environment, so it varies with pH, temperature, ionic strength, the presence of cofactors or coenzymes, and exposure to activators or inhibitors. Characterising activity therefore underpins enzyme purification, kinetic analysis and the optimisation of production processes, while immobilisation strategies can change apparent activity and stability for repeated use. Studies in this area examine these principles directly through the immobilisation of Enzymes, the hydrolysis of cellulose by cellulases, and the production, purification and characterisation of peroxidase, xanthine oxidase and laccase. Related work assesses inhibition of alpha-amylase, an approach relevant to modulating starch digestion, and the behaviour of antioxidative Enzymes. Collectively such investigations show how catalytic rate is measured, how Enzymes are recovered and defined, and how external factors and inhibitors shape the activity that determines an enzyme's biological and industrial usefulness.

Research published in this journal

12 peer-reviewed articles, ranked by relevance. Each links to its DOI.

2018

Enzymology in its Second Century

Brumm PhillipCorresponding author
C5-6 Technologies LLC, 5627 Old Oak Drive, Fitchburg, WI 53711, USA
Exact topic Enzymes doi:10.14302/issn.2690-4829.jen-18-2010

How this research is being cited

The 12 articles above have been cited 45 times in the scholarly literature. Citation data via OpenAlex and Crossref, updated Jun 2026.

A sample of recent works citing this journal's research on Enzyme Activity, linking to each citing work.

Editorial oversight

Curated from peer-reviewed research published in Enzymes (ISSN 2690-4829).

Journal editorial board
Loredana Marcolongo · Italy Melike Caglayan · United States Daniela Vullo · Italy

This page summarises published research for orientation; it is not medical or professional advice.