Utilization of hydrolyzed sago starch as main substrate for the production of bloplastic Poly hydroxy butyrate (Phb) by rasitonia eutropha on fed batch cultivation system

Abstract

The objective of this research was to examine the utilization of hydrolyzed sago starch as the main sunstrate to produce poly hydroxy butyratq (PHS) by Ralstonia eutropIJa using fed batch cultivation method. The results showed that the hydrolyzed sago starch could be used as carbon. source for the production of PHS by Ra/stonia eutropha. A higher formation and accumulation of PHA could be achieved through feeding of hydrolyzed sago starch on a fed batch cultivation system. The best treatment could increase the specific product yield up to 76.54% and product concentration up to 3.72 gIL