Evaluation of Strategies to Produce Highly Porous Cross-Linked Aggregates of Porcine Pancreas Lipase with Magnetic Properties
Overview
Authors
Affiliations
The preparation of highly porous magnetic crosslinked aggregates (pm-CLEA) of porcine pancreas lipase (PPL) is reported. Some strategies to improve the volumetric activity of the immobilized biocatalyst were evaluated, such as treatment of PPL with enzyme surface-modifying agents (polyethyleneimine or dodecyl aldehyde), co-aggregation with protein co-feeders (bovine serum albumin and/or soy protein), use of silica magnetic nanoparticles functionalized with amino groups (SMNPs) as separation aid, and starch as pore-making agent. The combination of enzyme surface modification with dodecyl aldehyde, co-aggregation with SMNPs and soy protein, in the presence of 0.8% starch (followed by hydrolysis of the starch with α-amylase), yielded CLEAs expressing high activity (immobilization yield around 100% and recovered activity around 80%), high effectiveness factor (approximately 65% of the equivalent free enzyme activity) and high stability at 40 °C and pH 8.0, i.e., PPL CLEAs co-aggregated with SMNPs/bovine serum albumin or SMNPs/soy protein retained 80% and 50% activity after 10 h incubation, respectively, while free PPL was fully inactivated after 2 h. Besides, highly porous magnetic CLEAs co-aggregated with soy protein and magnetic nanoparticles (pm-SP-CLEAs) showed good performance and reusability in the hydrolysis of tributyrin for five 4h-batches.
Gama Cavalcante A, Nascimento Dari D, da Silva Aires F, Carlos de Castro E, Dos Santos K, Sousa Dos Santos J RSC Adv. 2024; 14(25):17946-17988.
PMID: 38841394 PMC: 11151160. DOI: 10.1039/d4ra02939a.
An Overview of Crosslinked Enzyme Aggregates: Concept of Development and Trends of Applications.
Bouguerra O, Abdul Wahab R, Huyop F, Al-Fakih A, Mahmood W, Mahat N Appl Biochem Biotechnol. 2024; 196(9):5711-5739.
PMID: 38180645 DOI: 10.1007/s12010-023-04809-y.
Trends in the Use of Lipases: A Systematic Review and Bibliometric Analysis.
Dos Santos L, Perna R, Vieira A, de Almeida A, Ferreira N Foods. 2023; 12(16).
PMID: 37628057 PMC: 10453403. DOI: 10.3390/foods12163058.
Evaluation of Enzymatic Tunnels in the Biotransformation of α-Tocopherol Esters.
Azevedo T, Silva L, Lima A, Pereira M, Franceschi E, Soares C Front Bioeng Biotechnol. 2022; 9:805059.
PMID: 35127674 PMC: 8814584. DOI: 10.3389/fbioe.2021.805059.
Matveeva V, Bronstein L Nanomaterials (Basel). 2021; 11(9).
PMID: 34578573 PMC: 8469579. DOI: 10.3390/nano11092257.