Engineering of E.coli for production of poly(3-hydroxypropionate) Tallyne Vasconcelos

What are polyhydroxyalkanoates (PHAs)? biodegradable and biocompatible thermoplastics used in several applications, such as medicine, pharmacy and agriculture the production was a way of using the glycerol in excess originated from the biodiesel industry poly(3-hydroxypropionate) was the type of PHA used in this experiment

Why to use E.coli? E.coli strains are widely used as hosts for microbial production of valuable compounds, like biofuels, chemicals and polymers It is highly adaptable and widely know genetic and metabolically

The process

Results

Results

Conclusion the microbial P3HP production from glycerol was improved greatly by constructing a genetically stable E.coli recombinant strain To overcome the instability due to plasmid loss, two strategies were tested and combined Better results were obtained: the recombinant strain Q1738 produced 25.7 g/L of P3HP from glycerol in aerobic fermentation

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