从实验室到货架的聚3-基酸-co-3-基酸的微生物生产:一篇综述
Seo Young Jo1, Seo Hyun Lim1, Ji Yeon Lee1
1Department of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea.
International journal of biological macromolecules
|June 20, 2024
概括
聚基酸 (PHAs) 提供一种可生物降解的塑料替代品. 代谢工程提高了聚3-基酸-co-3-hydroxyvalerate (P3HB-co-3HV) 的生产,改善了其性能并降低了成本.
科学领域:
- 生物技术和材料科学 生物技术和材料科学
- 专注于生物聚合物和微生物生产系统.
背景情况:
- 聚酸酸 (PHAs) 是具有可调节性质的可生物降解聚合物.
- 聚基酸-co-3-hydroxyvalerate) [P(3HB-co-3HV) ]是一种有前途的PHA,与P(3HB) 相比,具有优越的机械和热特性.
- 目前,高生产成本限制了P(3HB-co-3HV) 的商业可行性.
研究的目的:
- 审查最近的代谢工程策略,以提高P(3HB-co-3HV) 的产量.
- 分析这些战略的现状,局限性和未来前景.
- 为了探索P{3HB-co-3HV}的成本效益高的合成途径.
主要方法:
- 微生物菌株的代谢工程 (野生型和重组型).
- 使用多种碳来源进行P(3HB-co-3HV) 合成.
- 调节单体组成以量身定制材料特性.
主要成果:
- 已经开发出各种代谢工程方法来提高P(3HB-co-3HV) 产量和生产力.
- 现有策略可以控制单体成分,从而微调材料特性.
- 目前正在进行研究,通过优化生产来克服经济障碍.
结论:
- 代谢工程对于推进P ((3HB-co-3HV) 作为可持续的塑料替代品至关重要.
- 需要进一步的研究来优化成本效益和可扩展性.
- P(3HB-co-3HV) 对各种生物相容和生物降解应用具有重大潜力.
相关概念视频
Microbes in Food Production
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
Microbes in Beverage Production
Alcoholic beverages such as wine, beer, and spirits are the products of microbial fermentation processes that transform simple sugars into ethanol and a wide array of complex flavor compounds. These transformations rely on the metabolic activities of specific yeasts and bacteria, which are selected and controlled to yield the desired beverage characteristics.Wine Fermentation and MaturationWine production begins with the crushing of grapes to release juice and pulp, forming a must that is...
Microbes in the Production of Fermented Foods
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
Microbial Bioremediation of Plastics
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...


