Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 188, Issue -, Pages 94-113Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2021.08.016
Keywords
Enzyme immobilization; Enzyme stabilization; Protein hydrolysis
Funding
- Ministerio de Ciencia e Innovacion from Spanish Government [CTQ2017-86170-R]
- CSIC [AEP045]
- Programa para el Desarrollo Profesional Docente (PRODEP) from Mexican Government
- Ministerio de Ciencia Innovacion y Universidades
- FEDER [RTI2018-095291-B-I00]
- Generalitat Valenciana [PROMETEOII/2018/076]
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This paper reviews the immobilization of papain on different supports for the first time, with a special focus on the preparation of magnetic biocatalysts and specific problems related to the immobilization of proteases. The benefits of proper immobilization and potential artifacts are discussed.
Papain is a cysteine protease from papaya, with many applications due to its broad specificity. This paper reviews for first time the immobilization of papain on different supports (organic, inorganic or hybrid supports) presenting some of the features of the utilized immobilization strategies (e.g., epoxide, glutaraldehyde, genipin, glyoxyl for covalent immobilization). Special focus is placed on the preparation of magnetic biocatalysts, which will permit the simple recovery of the biocatalyst even if the medium is a suspension. Problems specific to the immobilization of proteases (e.g., steric problems when hydrolyzing large proteins) are also defined. The benefits of a proper immobilization (enzyme stabilization, widening of the operation window) are discussed, together with some artifacts that may suggest an enzyme stabilization that may be unrelated to enzyme rigidification.
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