Rational engineering of natural polyhydroxyalkanoates producing microorganisms for improved synthesis and recovery
Abstract Microbial production of biopolymers derived from renewable substrates and waste streams reduces our heavy reliance on petrochemical plastics. One of the most important biodegradable polymers is the family of polyhydroxyalkanoates (PHAs), naturally occurring intracellular polyoxoesters produ...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-02-01
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| Series: | Microbial Biotechnology |
| Online Access: | https://doi.org/10.1111/1751-7915.14109 |
| _version_ | 1797944828235874304 |
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| author | José Manuel Borrero‐de Acuña Ignacio Poblete‐Castro |
| author_facet | José Manuel Borrero‐de Acuña Ignacio Poblete‐Castro |
| author_sort | José Manuel Borrero‐de Acuña |
| collection | DOAJ |
| description | Abstract Microbial production of biopolymers derived from renewable substrates and waste streams reduces our heavy reliance on petrochemical plastics. One of the most important biodegradable polymers is the family of polyhydroxyalkanoates (PHAs), naturally occurring intracellular polyoxoesters produced for decades by bacterial fermentation of sugars and fatty acids at the industrial scale. Despite the advances, PHA production still suffers from heavy costs associated with carbon substrates and downstream processing to recover the intracellular product, thus restricting market positioning. In recent years, model‐aided metabolic engineering and novel synthetic biology approaches have spurred our understanding of carbon flux partitioning through competing pathways and cellular resource allocation during PHA synthesis, enabling the rational design of superior biopolymer producers and programmable cellular lytic systems. This review describes these attempts to rationally engineering the cellular operation of several microbes to elevate PHA production on specific substrates and waste products. We also delve into genome reduction, morphology, and redox cofactor engineering to boost PHA biosynthesis. Besides, we critically evaluate engineered bacterial strains in various fermentation modes in terms of PHA productivity and the period required for product recovery. |
| first_indexed | 2024-04-10T20:45:48Z |
| format | Article |
| id | doaj.art-5711137952014ab8a7d62ba584845166 |
| institution | Directory Open Access Journal |
| issn | 1751-7915 |
| language | English |
| last_indexed | 2024-04-10T20:45:48Z |
| publishDate | 2023-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Microbial Biotechnology |
| spelling | doaj.art-5711137952014ab8a7d62ba5848451662023-01-24T07:57:36ZengWileyMicrobial Biotechnology1751-79152023-02-0116226228510.1111/1751-7915.14109Rational engineering of natural polyhydroxyalkanoates producing microorganisms for improved synthesis and recoveryJosé Manuel Borrero‐de Acuña0Ignacio Poblete‐Castro1Departamento de Microbiología Facultad de Biología Universidad de Sevilla Sevilla SpainBiosystems Engineering Laboratory Department of Chemical and Bioprocess Engineering Universidad de Santiago de Chile (USACH) Santiago ChileAbstract Microbial production of biopolymers derived from renewable substrates and waste streams reduces our heavy reliance on petrochemical plastics. One of the most important biodegradable polymers is the family of polyhydroxyalkanoates (PHAs), naturally occurring intracellular polyoxoesters produced for decades by bacterial fermentation of sugars and fatty acids at the industrial scale. Despite the advances, PHA production still suffers from heavy costs associated with carbon substrates and downstream processing to recover the intracellular product, thus restricting market positioning. In recent years, model‐aided metabolic engineering and novel synthetic biology approaches have spurred our understanding of carbon flux partitioning through competing pathways and cellular resource allocation during PHA synthesis, enabling the rational design of superior biopolymer producers and programmable cellular lytic systems. This review describes these attempts to rationally engineering the cellular operation of several microbes to elevate PHA production on specific substrates and waste products. We also delve into genome reduction, morphology, and redox cofactor engineering to boost PHA biosynthesis. Besides, we critically evaluate engineered bacterial strains in various fermentation modes in terms of PHA productivity and the period required for product recovery.https://doi.org/10.1111/1751-7915.14109 |
| spellingShingle | José Manuel Borrero‐de Acuña Ignacio Poblete‐Castro Rational engineering of natural polyhydroxyalkanoates producing microorganisms for improved synthesis and recovery Microbial Biotechnology |
| title | Rational engineering of natural polyhydroxyalkanoates producing microorganisms for improved synthesis and recovery |
| title_full | Rational engineering of natural polyhydroxyalkanoates producing microorganisms for improved synthesis and recovery |
| title_fullStr | Rational engineering of natural polyhydroxyalkanoates producing microorganisms for improved synthesis and recovery |
| title_full_unstemmed | Rational engineering of natural polyhydroxyalkanoates producing microorganisms for improved synthesis and recovery |
| title_short | Rational engineering of natural polyhydroxyalkanoates producing microorganisms for improved synthesis and recovery |
| title_sort | rational engineering of natural polyhydroxyalkanoates producing microorganisms for improved synthesis and recovery |
| url | https://doi.org/10.1111/1751-7915.14109 |
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