Doctoral Program in Sciences of Natural Resources, Universidad de La Frontera, Temuco, Chile.
Department of Chemical Engineering, Universidad de La Frontera, Casilla 54-D, Av. Francisco Salazar, 01145, Temuco, Chile.
Curr Microbiol. 2021 Jan;78(1):1-10. doi: 10.1007/s00284-020-02263-1. Epub 2020 Oct 28.
Polyhydroxyalkanoates (PHA) are bio-based polymers with the potential of replace petrochemical plastics. Nevertheless, PHA commercialization is still low, due to the high production cost associated with industrial-scale development. The most cost/efficient PHA recovery strategies use organochlorine compounds or harsh reagents implying a high environmental impact. Therefore, the importance of developing an economical and efficient recovery strategy cannot be overestimated. Thus, new approaches have been reported that look for creating a sustainable production process, such as biological recovery, PHA secretion or predator bacteria. Moreover, if bioplastics would become the plastics of the future, it must be necessary to replace the traditional PHA extraction methods by environmentally friendly options. Hence, the aim of this review is to analyze trends in the development of efficient technologies for the sustainable recovery of polyhydroxyalkanoates (PHA) produced by microorganisms.
聚羟基烷酸酯（PHA）是一种具有替代石化塑料潜力的生物基聚合物。然而，由于与工业规模发展相关的高生产成本，PHA 的商业化程度仍然很低。最具成本效益的 PHA 回收策略使用有机氯化合物或苛刻的试剂，这意味着会产生高环境影响。因此，开发经济高效的回收策略的重要性怎么强调都不为过。因此，已经有报道称，人们正在寻求创建一种更可持续的生产工艺，例如生物回收、PHA 分泌或捕食细菌。此外，如果生物塑料将成为未来的塑料，那么必须用环保的选择来替代传统的 PHA 提取方法。因此，本综述的目的是分析微生物生产的聚羟基烷酸酯（PHA）可持续回收的高效技术的发展趋势。
