Biotechnological Generation of Value Added Products from Spent Pulping Liquors: Assessing the Potential of Extremophiles
|Michaela Weissgram1,2, Christoph Herwig2 and Hedda K Weber1*|
|1Kompetenzzentrum Holz GmbH, Altenbergerstr. 69, 4040 Linz, Austria|
|2Vienna University of Technology, Institute of Chemical Engineering, Research Area Biochemical Engineering, Gumpendorferstraße 1A, 1060 Vienna, Austria|
|Corresponding Author :||Hedda K Weber
Vienna University of Technology
Institute of Chemical Engineering
Kompetenzzentrum Holz GmbH
Altenbergerstraße 69, 4040 Linz, Austria
E-mail: [email protected]
|Received June 26, 2015; Accepted July 16, 2015; Published July 21, 2015|
|Citation: Weissgram M, Herwig C, Weber HK (2015) Biotechnological Generation of Value Added Products from Spent Pulping Liquors: Assessing the Potential of Extremophiles. J Bioprocess Biotech 5:241. doi: 10.4172/2155-9821.1000241|
|Copyright: © 2015 Weissgram M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.|
Carbon rich industrial waste streams are interesting raw materials for biorefineries, due to their high abundance and relatively low price. However, they are a challenging habitat for microorganisms, due to extreme pH and temperature levels, as well as high abundance of inhibiting substances. Extreme conditions call for extreme microorganisms.
This contribution aims to show the potential of extremophilic bioprocesses for the generation of valuable products from industrial waste streams on the example of the pulping waste streams Spent Sulfite Liquor (SSL) and Black Liquor (BL). It provides an overview of products, which can be produced biotechnologically by extremophilic organisms and compares their performance to benchmark biotechnological processes. Furthermore it elucidates the factors to be considered for bioprocesses on industrial waste streams, thereby providing a toolset for selecting a bioprocess based on the waste stream. Finally bioprocesses are proposed for SSL and BL, two of which are already investigated in our workgroup.