Isolation and recovery of microbial polyhydroxyalkanoates
By B. Kunasundari, K. Sudesh. 2011
272 citations recorded by the source corpus.
The deleterious environmental impacts caused by plastic wastes have attracted worldwide concern. The bio- based and biodegradable polyhydroxyalkanoate (PHA) appears to be one of the potential candidates to replace some con- ventional plastics. However, high production cost of PHAs has limited their market penetration. The major cost absorbing factors are the upstream fermentation processes and the downstream PHA recovery technologies. The latter significantly affects the overall process economics. Various recovery technologies have been proposed and studied in small scales in the laboratory as well as in industrial scales. These include solvent extraction, chemical digestion, enzymatic treatment and mechanical disruption, supercritical fluid disruption, flotation techniques, use of gamma irradiation and aqueous two-phase system. This paper reviews all the recovery methods known to date and compares their efficiency and the quality of the resulting PHA. Some of the large-scale production of PHA and the strategies employed to reduce the production cost are also discussed.
Subfields: Biomaterials, Industrial and Manufacturing Engineering, Pollution
View Paper: https://www.semanticscholar.org/paper/0840c4884acde67e911ab5ba972ea7f4b3738a44
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Biomaterials
In Industrial and Manufacturing Engineering
In Pollution
Citations in the corpus
- Microbial Polyhydroxyalkanoates (PHAs): Efficient Replacement of Synthetic Polymers (2020, background): “It is therefore, important to state that biopolymers like PHAs are of great interest in modern world due to their ability to replace the synthetic plastics from our environment [34].”
- Start a Research on Biopolymer Polyhydroxyalkanoate (PHA): A Review (2014, background): “A comprehensive review on this topic is provided by Kunasundari and Sudesh [143].”
- Plastic Degradation and Its Environmental Implications with Special Reference to Poly(ethylene terephthalate) (2012, methodology): “vegetable oil and even carbon dioxide [95], however, the main prohibitive expense remains the extraction procedure for recovery of the polymer [96].”