Application of Magnetic Nano-Immobilized Enzyme in Soybean Oil Degumming: Numerical Simulation in a Liquid-Solid MFB

Abstract

Using crude soybean oil (CSO) as fluid and nanomagnetic immobilized phospholipase C (PLC) as fluidizing particles, the Eulerian–Lagrangian fluid-particle two-phase flow model was used to numerically simulate the law of motion of fluidizing particles in the magnetic fluidized bed (MFB). The main parameters were obtained by numerical simulation based on the discrete element method (DEM). The nanomagnetic PLC in the MFB was optimal to the enzymatic reaction by limiting the iteration step size to 3 × 10−5, the boundary condition to 20 × 300 mm, the opening rate to 37.5%, the condition of CSO flow rate to 0.01 m/s, and the magnetic field strength to 0.02T. After 2.0 h of reaction, the amount of residual phosphorus in the oil was 55.73 mg/kg, the content of 1, 2-DAG was 1.42%, and the nanomagnetic enzyme still had 97% relative activity. Hence, these optimal conditions can improve the efficiency and the stability of the nanomagnetic enzymatic reaction.

Advancements in enzyme immobilization on magnetic nanomaterials: toward sustainable industrial applications

“…The detailed analysis focuses on the physical properties of the STY-DVB-M copolymer, such as the glass transition temperature of 85.68 °C and the onset of thermal degradation, which occurred at 406.66 °C, demonstrating the importance of support stability in bioreactors. Additionally, the work investigates the inuence of magnetic eld strength on reaction yield and productivity, emphasizing the versatility and control enabled by magnetization in the systems, 510,511 crucial aspects when exploring bioreactors with magnetic nanomaterials.…”