Waste Paper - Value Added Biochemicals
Enzymatic digestion is the first stage in waste paper upcycling, which converts the waste paper to a simple sugar mix to be used in fermentation to produce value added bio-chemicals such as butanol and succinic acid.
A low cost enabling enzyme technology was applied to solubilise waste paper, from a mixed waste stream, to produce a feedstock with potential for production of high value biochemicals and fuels.
The enzymes reduced the fibrous structure of the paper to a thick sugar-rich slurry. The liquor recovered from the paper consistently mainly of a single sugar (glucose), and was concentrated to produce a sugar-rich syrup for downstream fermentation.
The feedstock, which featured a complex presence of metal icons and other non-sugar components, may require different conditions during enzymatic treatment or separation and/or some purification to improve bioproduct yields.