CWA 17897-2:2023

Extraction, production and purification of added value products from urban wastes - Part 2: Extraction and purification of PHA biopolymers CWA 17897-2:2023

Scope

The present document specifies a method of extraction and purification of PHA biopolyesters using chlorinated solvent-free and wet chemistry methods from enriched biomass with a PHAs extraction efficiency > 80 % with a purity > 95 % and a molecular weight > 200 kDa.
This document is applicable to pre-digestion of the input biomass, which is a dried PPB with high PHA content.