Microalgae as a Source of Biopolymer - A Comprehensive Review

Abstract

The growth in overall demand for plastic materials has given rise to the manufacture and utilization of plastic articles throughout the world. This has led to extreme waste production, negatively influencing terrestrial and marine life. Microplastics lead to the endangerment of health. Therefore, plastic decomposition is a difficult task. Chemical treatments, recycling, carbonizing, and landfills aren't ideal solutions for lowering plastic pollution. As a result of this, there is a need to research and identify alternatives that decompose much more rapidly like biodegradable plastics when compared to synthetic plastics. Biodegradable plastic can be produced by algae which contain polysaccharides. Microalgae process a huge amount of lipids, proteins, and carbohydrates which are significant substances in the formation of biopolymers. Owing to their high growth rate and volume, they can be cultivated in wastewater. This review examines the capability of microalgae to produce biodegradable plastic and its economic possibility. Each of the latest sustainable methods has been considered in this article: plastic biodegradation and bioplastic production using microalgae.

Polyhydroxyalkanoates, the Biopolymers of Microbial Origin- A Review

“…Through the Calvin Benson cycle, atmospheric CO2 is converted into PHA, which is converted to Acetyl-CoA through glycolysis. Acetyl-CoA is converted into the most prevalent PHA, PHB by three enzymatic reactions (Ranganadha, 2022)…”

“…Polymeric PHAs have properties similar to petroleum-based polymers along with strong tensile strengths and high melting temperatures. Their properties like biocompatibility, biodegradability, and piezoelectricity make PHAs attractive biopolymers in biomedical applications (Ranganadha, 2022). Using microbially synthesized PHAs as models, this review aims to understand the diversity and properties of these compounds.…”

A Review of PHB Production by Cyanobacteria and Its Applications

“…Devices called organs-on-a-chip are often acquired for use in a particular field of biomedicine. All aspects of the illness are taken into account during the thorough planning that goes into the development and synthesis of the systems (Ranganadhareddy, 2022c). A system is supplemented with mutant cells, pharmacological and biophysical stimulants, and certain cells that are directly taken from patients.…”