Vysoka Skola Chemicko-Technologicka V Praze

Nafigate Corporation, A.s.

Taminco

Jiri Trejbal

Peter Roose

Martin Zapletal

Josef Pasek

A method of isolation of polyhydroxyalkanoates from biomass pre-cleans the biomass in a first extraction process by extracting components of the biomass other than polyhydroxyalkanoates. In a second extraction process, polyhydroxyalkanoates are extracted from a solid phase of the biomass obtained in the first extraction process by adding an extraction agent to pre-cleaned biomass based on chlorinated hydrocarbon, carrying out the extraction for 5 to 90 minutes at a temperature in the range of 20 to 120&#xb0; C., separating the extract containing the polyhydroxyalkanoates from the extraction solution, and feeding the extract to a circulation loop filled with water having a temperature from 20 to 120&#xb0; C. or a mixture of water and from up to 20% by weight of the extraction agent based on chlorinated hydrocarbon used for the extraction of polyhydroxyalkanoates, wherein the extraction agent is removed from this extract and polyhydroxyalkanoates precipitate.

Method of isolation of polyhydroxyalkanoates (PHAs) from biomass fermented by microorganisms producing polyhydroxyalkanoates (PHAs) and/or from biomass containing at least one crop-plant producing polyhydroxyalkanoates

Growing community of inventors

Kralupy nad Vltavou, Czechia

Jiri Trejbal