One‐step bioconversion of hemicellulose polymers to rhamnolipids with Cellvibrio japonicus: A proof‐of‐concept for a potential host strain in future bioeconomy

• DOI: 10.1111/gcbb.12542
• Publication Date: 2018-07-20T09:09:32Z
• Authors: Felix Horlamus; Andreas Wittgens; Philipp Noll; Jan Michler; Inga Müller; Fabiola Weggenmann; Claudia Oellig; Frank Rosenau; Marius Henkel; Rudolf Hausmann
• Keywords: Bioconversion; Hemicellulose; Monosaccharide

Abstract The purpose of this study was to evaluate Cellvibrio japonicus as a potential host strain for one‐step bioconversion hemicellulose polymers value‐added products. C. could be cultivated on all main lignocellulose monosaccharides well xylan sole carbon source. This is particularly interesting most industrially relevant bacteria are neither able depolymerize wood nor metabolize monosaccharides. As result, raw materials typically have degraded employing additional processes while the complete conversion sugars remains challenge. Exemplary product, mono‐rhamnolipid biosurfactants with after transformation plasmid pSynPro8oT carrying genes rhlAB demonstrated. achieved product yields in process comparably low, many challenges remain overcome application an industrial scale. Nonetheless, provides first step search establishing future bioeconomy, which will ideally used little exhaustive pretreatment possible.