固态发酵在一些生物制品的生产及生物处理过程中具有明显的优势,特别是近年来随着对固态发酵理论模型和发酵设备的研究不断深入,固态发酵的应用范围越来越广。对于好氧的固态发酵来说,氧气的传质效率低仍然是工艺优化和提高产量的主要限制因素,同时它也影响了固态发酵生产规模的扩大。该文分析了固态发酵过程中气体传质的原理及过程,并对此提出了一些提高固态发酵过程中气体传质效率的策略,如控制固体基质特性、选择合适的搅拌通风方式等,最后展望了固态发酵技术的发展前景。

Solid state fermentation has the obvious superiority in production of biologics and biological treatment process.Especially in recent years,with the development of theoretical model and bioreactors,the application range of solid state fermentation is growing fast.In aerobic solid state fermentation systems,oxygen mass transfer is often one of very important limiting factors for optimal growth and productivity.It is related to restriction of the scale-up of solid state fermentation.This paper reviews the phenomena of oxygen mass transfer process in macroscale and microscale solid state fermentation system.It highlights several control strategies for improving gas transfer efficiency in solid state fermentation.The application prospects of solid state fermentation are discussed at the end of paper.