Bioconversion of Giant Cane for Integrated Production of Biohydrogen, Carboxylic Acids, and Polyhydroxyalkanoates (PHAs) in a Multistage Biorefinery Approach
| Autor: | Roberto Pilu, Mariana Villegas Calvo, Barbara Scaglia, Gabriella Papa, Cesare Cosentino, Luca Corno, Blake A. Simmons, Fabrizio Adani, Giorgio Eisele, Bianca Colombo |
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| Rok vydání: | 2018 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Bioconversion 020209 energy General Chemical Engineering 02 engineering and technology General Chemistry Dark fermentation 010501 environmental sciences Xylose Pulp and paper industry Biorefinery 01 natural sciences Polyhydroxyalkanoates chemistry.chemical_compound Corn stover chemistry 0202 electrical engineering electronic engineering information engineering Environmental Chemistry Fermentation Biohydrogen 0105 earth and related environmental sciences |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 6:15361-15373 |
| ISSN: | 2168-0485 |
| Popis: | A highly productive Arundo donax L. clone (Clone AD-20) was produced at full field to give 54.6 Mg total solids biomass Ha–1. Biomass was chemically and enzymatically pretreated, recovering 13.9 Mg Ha–1 of glucose and 3.6 Mg Ha–1 of xylose, i.e., 3.5–4.5 more than yield typically obtained from corn stover or switchgrass. The subsequent fermentation of the liberated sugars to organic acids (OA) by dark fermentation generated yields of 3850 Nm3 Ha–1 of biohydrogen and 14.2 Mg Ha–1 of OAs. OAs were then used as a feed to produce polyhydroxyalkanoates (PHA), with 3-hydroxybutyrate the major monomer present (PHB > 95% PHA), from a biological process using mixed microbial culture producing 5.04 Mg Ha–1 of PHA. An initial economic analysis indicated that this multistage biorefinery approach would result in a net revenue of 10,415 € Ha–1, which is approximately 9-fold greater than that obtained by a traditional biorefinery producing bioethanol. |
| Databáze: | OpenAIRE |
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