METHOD FOR PRODUCING POLYHYDROXYALKANOATES (PHA) FROM ORGANIC WASTE
According to one broad aspect of this disclosure, a method is provided for producing polyhydroxyalkanoates (PHA) from organic waste. The method comprises homogenizing organic waste to obtain a feedstock that has about 0.01% to about 99.99% (w/w) dry mass solids. The feedstock is inoculated with an i...
Saved in:
Main Authors | , , , , , , |
---|---|
Format | Patent |
Language | English French German |
Published |
27.04.2022
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | According to one broad aspect of this disclosure, a method is provided for producing polyhydroxyalkanoates (PHA) from organic waste. The method comprises homogenizing organic waste to obtain a feedstock that has about 0.01% to about 99.99% (w/w) dry mass solids. The feedstock is inoculated with an inoculum of acidogenic fermentative bacteria in order to obtain an inoculated feedstock. The inoculated feedstock is incubated for at least 1 day to obtain a fermentation broth. The fermentation broth comprises volatile fatty acids (VFAs) and undigested organic waste. The fermentation broth is filtered with a filter with a pore size ranging from 0.2 µm to 500,000 NMWC to remove the acidogenic fermentative bacteria and undigested organic waste, to obtain a clarified broth comprising concentrated VFAs. The clarified broth and high-PHA producing bacteria are incubated to produce intracellular PHA granules in the high-PHA producing bacteria. PHA polymers are extracted from the intracellular PHA granules. |
---|---|
Bibliography: | Application Number: EP20200826008 |