VFAs组分调控对合成PHA影响研究进展  

Progress in the influence of VFAs component regulation on synthetic PHA

作　　者：杨林 李夏桐 孙卫宁 韩盼 周凯乐 程刚[1] YANG Lin;LI Xia-tong;SUN Wei-ning;HAN Pan;ZHOU Kai-le;CHENG Gang(School of Environmental and Chemical Engineering,Xi’an Polytechnic University,Xi’an 710048,China)

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《应用化工》2023年第9期2651-2654,2659,共5页Applied Chemical Industry

基　　金：陕西省科技计划项目(2019GY-163);西安市科技计划项目(20SFSF0012);西安工程大学产学研用项目(2020KJ234)。

摘　　要：介绍了有机酸复配合成PHA的国内外研究现状,阐明了VFAs合成PHA的代谢途径,得出PHA的单体组成直接受VFAs中奇偶数酸的影响。围绕VFAs组分的调控策略,论述了有机废弃物厌氧发酵过程中VFAs组分的变化规律,归纳了不同组分VFAs合成PHA的性能和产率变化,指出提高奇数酸质量分数、增加HV单体占比是优化PHA性能的重要方式。通过归纳总结VFAs的各种调控策略,明确了合成优质PHA的研究方向。This paper introduces the current status of domestic and international research on PHA synthesis by organic acid compounding,elucidates the metabolic pathway of PHA synthesis by VFAs,and concludes that the monomeric composition of PHA is directly influenced by the odd-even number of acids in VFAs.The change pattern of VFAs components during anaerobic fermentation of organic waste was discussed,and the performance and yield changes of PHA synthesized by different VFAs components were summarized,pointing out that increasing the mass fraction of odd-numbered acids and increasing the proportion of HV monomers are important ways to optimize the performance of PHA.By summarizing the various regulatory strategies of VFAs,the research directions for the synthesis of high-quality PHA were clarified.

关 键 词：挥发性脂肪酸 聚羟基脂肪酸酯 组分调控 性能 厌氧发酵 

分 类 号：TQ235[化学工程—有机化工] X705[环境科学与工程—环境工程]