ABSTRACT
The PHB as a biodegradable thermoplastic has captured the attention for more than 30 years, due to their similar properties to various thermoplastics and elastomers, which have been used in consumer products, and completely degraded to water and carbon dioxide upon disposal under various environments (Choi and Lee, 1999). However, the inefficient and expensive production and recovery methods, lack of detailed knowledge about the cultural conditions regulating PHB production, need of gene transfer from efficient PHB producer to easily cultivable organisms have hampered
their use for wide range of applications and therefore, need to be explored fully for the commercialization of PHB.
