Polyhydroxyalkanoates - Wikipedia
Polyhydroxyalkanoates or PHAs are polyesters produced in nature by numerous microorganisms, including through bacterial fermentation of sugars or lipids. [1] . When produced by bacteria they serve as both a source of energy and as a carbon store.
聚羟基脂肪酸酯 - 百度百科
聚羟基脂肪酸酯 (polyhydroxy alkanoates,PHA)，是近20多年迅速发展起来的，是很多微生物合成的一种细胞内聚酯，是一种天然的高分子生物材料。 由于PHA同时具有良好的生物相容性能､ 生物可降解性 和塑料的热加工性能，所以它同时可作为 生物医用材料 和生物可降解包装材料，因此它已经成为近年来 生物材料 领域最为活跃的研究热点。 PHA还具有非线性光学性､ 压电性 ､气体相隔性很多 高附加值 性能。 天然的或合成的生物可降解的 高分子材料 往往有很高的 水蒸气 …
Polyhydroxyalkanoates: opening doors for a sustainable future
2016年4月22日 · Polyhydroxyalkanoates (PHAs) comprise a group of natural biodegradable polyesters that are synthesized by microorganisms. However, several disadvantages limit their competition with traditional...
生物基生物降解材料聚羟基烷酸酯（PHA）的介绍 - 知乎
聚羟基烷酸酯 ( polyhydroxyalkanoates 简称PHA) ，PHA是由微生物通过各种碳源发酵而合成的不同结构的脂肪族 共聚聚酯，其基本结构如下图。 PHA具有不同的 单体结构，因此种类繁多。 既有由短链单体组成的PHA，也有由中长链单体组成的PHA，还有由不同种类单体组成的共聚物。 其中最常见的有聚3-羟基丁酸酯 (PHB)、聚羟基戊酸酯 (PHV)及PHB和PHV的共聚物 (PHBV)。 由于 PHA单体种类繁多，彼此之间链长差别很大，造成不同 PHA的材料学性质也大不相同（如下 …
Polyhydroxyalkanoates: Characteristics, production, recent …
2018年1月1日 · Polyhydroxyalkanoates (PHAs) are bio-polymers, synthesized by microorganisms as lipid inclusions for energy storage in granular forms within the cellular structure (Poli et al., 2011). The French scientist Lemoigne first discovered PHA in Bacillus megaterium in the form of poly (3-hydroxybutyrate) (PHB) in 1925 (Chee et al., 2010).
A Review of Polyhydroxyalkanoates: Characterization, Production, …
2024年10月8日 · In this review, a comprehensive overview of polyhydroxyalkanoates (PHAs) is provided, including their characterization, applications, and the mechanisms underlying their biosynthesis.
Polyhydroxyalkanoates – AOCS
PHAs (polyhydroxyalkanoates = biopolyesters) were discovered at the beginning of the 20 th century by Lemoigne (1926) when observing poly (3-hydroxybutyrate) (PHB) granules inside the Gram-positive bacterium Bacillus megaterium [1].
Polyhydroxyalkanoate and its efficient production: an eco …
Polyhydroxyalkanoate (PHA) is the most promising solution to major ecological problem of plastic accumulation. The biodegradable and biocompatible properties of PHA make it highly demanding in the biomedical and agricultural field.
Polyhydroxyalkanoates: Characteristics, production, recent developments ...
2018年1月1日 · Polyhydroxyalkanoates (PHAs) are bio-polymers, synthesized by microorganisms as lipid inclusions for energy storage in granular forms within the cellular structure (Poli et al., 2011). The French scientist Lemoigne first discovered PHA in Bacillus megaterium in the form of poly (3-hydroxybutyrate) (PHB) in 1925 (Chee et al., 2010).
Polyhydroxyalkanoates: Recent Advances in Their Synthesis …
2019年9月20日 · Polyhydroxyalkanoates (PHAs) are microbial biopolymers (polyesters) that have a wide range of functions and applications. They serve in nature mainly as carbon and energy storage materials for a variety of microorganisms.