Swart, Reuben MarcRonoh, Dominic KibetBrink, Hendrik GideonNicol, Willie2022-07-292022-07-292022-01-22Swart, R.M.; Ronoh, D.K.; Brink, H.; Nicol,W. Continuous Production of Fumaric Acid with Immobilised Rhizopus oryzae: The Role of pH and Urea Addition. Catalysts 2022, 12, 82. https://doi.org/10.3390/catal12010082.2073-4344 (online)10.3390/catal12010082https://repository.up.ac.za/handle/2263/86577Please read abstract in the article.en© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.Fumaric acidRhizopus oryzaeImmobilised reactorCrabtree effectUrea additionUrea cyclepHArticle