Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4997886 | Bioresource Technology | 2017 | 9 Pages |
Abstract
The performance of two lignocellulosic biomasses was studied in high-pressure carbon dioxide/water pre-treatment. Sugarcane bagasse and elephant grass were used to produce C5-sugars from hemicellulose and, simultaneously, to promote cellulose digestibility for enzymatic saccharification. Different pre-treatment conditions, with combined severity factor ranging from â1.17 to â0.04, were evaluated and maximal total xylan to xylose yields of 59.2Â wt.% (34.4Â wt.% xylooligomers) and 46.4Â wt.% (34.9Â wt.% xylooligomers) were attained for sugarcane bagasse and elephant grass, respectively. Furthermore, pre-treated biomasses were highly digestible, with glucan to glucose yields of 77.2Â mol% and 72.4Â mol% for sugarcane bagasse and elephant grass, respectively. High-pressure carbon dioxide/water pre-treatment provides high total C5-sugars and glucose recovery from both lignocellulosic biomasses; however it is highly influenced by composition and intrinsic features of each biomass. The obtained results confirm this approach as an effective and greener alternative to conventional pre-treatment processes.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Andréia Toscan, Ana Rita C. Morais, Susana M. Paixão, LuÃs Alves, Jürgen Andreaus, Marli Camassola, Aldo José Pinheiro Dillon, Rafal M. Lukasik,