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Utilization of carbohydrates content of paper tube residuals for ethanol production
Högskolan i Borås, Institutionen Ingenjörshögskolan. (Biotechnology)ORCID-id: 0000-0003-4887-2433
2012 (engelsk)Inngår i: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 87, nr 3, s. 2149-2153Artikkel i tidsskrift (Fagfellevurdert) Published
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Abstract [en]

Paper tube residual was utilized as a raw material for ethanol production. The effects of two pretreatment methods namely dilute acid steam explosion (DASE) and concentrate phosphoric acid (CPA) on enzymatic hydrolysis and SSF were studied. Cellulose, lignin, glue (PVA), and xylan were the main components of paper tube accounting for 52%, 20%, 9% and 7% of dry matter, respectively. Presence of PVA delayed the growth of yeast cells but showed no effect on ultimate yield of ethanol. Higher cellulase concentration as well as pretreatments increased hydrolysis rate and ultimate yield of ethanol. Enzymatic hydrolysis of native paper tube for 72 h resulted in 49% of theoretical glucose conversion while pretreatments by DASE and CPA increased this value to 67% and 93%, respectively. The best result of SSF process was from the CPA-pretreated paper tubes with an ethanol yield of 0.42 g/g after 48 h. Under optimal condition, 308 ml ethanol per kg paper tube could be produced.

sted, utgiver, år, opplag, sider
Pergamon , 2012. Vol. 87, nr 3, s. 2149-2153
Emneord [en]
Resource Recovery
HSV kategori
Forskningsprogram
Resursåtervinning
Identifikatorer
URN: urn:nbn:se:hb:diva-1311DOI: 10.1016/j.carbpol.2011.10.038ISI: 000299969700039Lokal ID: 2320/11316OAI: oai:DiVA.org:hb-1311DiVA, id: diva2:869335
Tilgjengelig fra: 2015-11-13 Laget: 2015-11-13 Sist oppdatert: 2017-12-01bibliografisk kontrollert

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