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Lactic acid production from renewable feedstock: fractionation, hydrolysis, and fermentation
Vise andre og tillknytning
2018 (engelsk)Inngår i: Advanced Sustainable Systems, ISSN 2366-7486, Vol. 2, nr 3, artikkel-id 1700185Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this paper, an integrated fractionation with a switchable ionic liquid (SIL), pulp hydrolysis, and lactic acid fermentation is carried out. For this, SO2-swithced SIL is used for fractionation of sugar cane (Saccharum officinarum) bagasse and giant cane (Arundo donax, AD). SIL is able to extract ≈2/3 of lignin when relatively large wood chips (≈4 mm) are used without any mechanical agitation and just 1 h of treatment time for AD. Furthermore, SIL reuse is successfully demonstrated for four runs. Subsequently, the produced pulps are hydrolyzed within 15 min in a microwave reactor, producing a glucose rich hydrolysates. Finally, these hydrolysates are used as a carbohydrate source for Lactobacillus delbrueckii fermentation, which selectively transform all glucose present into optically pure D-lactic acid. Hence, the whole chain for lactic acid production from biomass is successfully demonstrated.

sted, utgiver, år, opplag, sider
2018. Vol. 2, nr 3, artikkel-id 1700185
Emneord [en]
anaerobic fermentation, hydrothermal hydrolysis, ionic liquids, lactic acid, lignocellulosic biomass
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-144658DOI: 10.1002/adsu.201700185ISI: 000427112800009OAI: oai:DiVA.org:umu-144658DiVA, id: diva2:1181546
Prosjekter
Bio4EnergyTilgjengelig fra: 2018-02-09 Laget: 2018-02-09 Sist oppdatert: 2019-08-29bibliografisk kontrollert

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