本文对近年来PHB发酵研究的进展进行了介绍，重点介绍了影响PHB积累的因素、PHB高密度发酵技术和PHB发酵动力学模型。
The effect factors of PHB accumulation, the high cell density culture techniques and kinetic models of PHB fermentation were reviewed in detail.
本文讨论了有效利用透析技术从发酵液中及时转移低分子杂质混合物，从而获得高密度发酵细胞的方法。
Dialysis techniques are discussed as a means for effective removal of low-molecular-mass components from fermentation broth to reach high cell density.
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