Abstract: Magnetically assisted bioreactors directly control the motion of magnetic bio-supports by assisting magnetic field，which improves mass transfer and relative motion between catalyst particles and can be combined with the advantages of fixed-bed，slurry-bed，moving-bed and fluidized-bed reactors. In this paper，magnetic bio-supports are characterized from three aspects，including magnetic material，carrier material and construction method；basic principles for construction of axial/transverse electromagnetic field and permanent magnetic field are summarized；configurations of magnetically assisted stirred reactor，magnetically assisted fixed-bed，magnetically assisted fluidized-bed and magnetically stabilized fluidized-bed reactor as well as their applications in biological and chemical processing are presented. Finally，research of magnetically assisted bioreactor is still in the laboratory，and further development asks for novel bio-compatible magnetic supports，controllable homogeneous large-scale assisted magnetic field and more creative reactor design.

Key words: bioreactors, immobilization, biosupport, magnetic field, fluidized-bed, bioreactors, immobilization, bio-support, magnetic field, fluidized-bed

摘要： 磁辅助生物反应器通过辅助磁场直接控制磁性生物载体的运动，有效改善传质及颗粒间的相对运动，兼具固定床、悬浮床、移动床及流化床反应器的优点，具有广阔的应用前景。本文首先从磁性材料、载体材料及构建方法的角度介绍了各类磁性生物载体的特征；总结了轴向电磁场、径向电磁场、永磁体磁场的构建原理及方法；对磁辅助搅拌罐反应器、磁辅助固定床反应器、磁辅助流化床反应器、磁稳流化床反应器的结构特点及其在生化过程中的应用进行了阐述。最后指出磁辅助生物反应器的研究仍停留在实验室水平，其发展有赖于良好生物亲和性的磁生物载体的开发、可控均一辅助磁场的放大及反应器的优化设计。

关键词: 生物反应器, 固定化, 生物载体, 磁场, 流化床, 生物反应器, 固定化, 生物载体, 磁场, 流化床