ABSTRACT
There is an increase demand for the use of biopolymers as a biomaterial. Biopolymers are a brick of monomeric units produced by microorganisms intracellularly or extracellularly. Carrageenans are a family of water-soluble, sulfated, linear polymers consisting of a backbone derived from galactose. Chondroitin sulfate is an important component in the connective tissue of extracellular matrix, and it plays an important role in different biological processes such as hemostasis and inflammation, regulation of cell development, cell adhesion, proliferation, and differentiation. Hyaluronic acid is a high-molecular-weight unbranched and non-sulfated glucosaminoglycan, distributed in connective tissues such as cartilage, vitreous of the human eye, umbilical cord, and synovial fluid. Antioxidants can be natural or man-made substances that prevent or delay the types of cell damage. Nowadays, microbial biopolymers are of great concern and receiving more attention in drug delivery field. The development of marine microbial biopolymers may open up a comprehensive utilization as biomaterials in different fields.
