Steam pretreatment and fermentation of the straw material "Paja Brava" using simultaneous saccharification and co-fermentation.

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Carrasco, CristhianLund University,Lunds universitet,Avdelningen för kemiteknik,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Chemical Engineering,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH (author)

Steam pretreatment and fermentation of the straw material "Paja Brava" using simultaneous saccharification and co-fermentation.

Article/chapterEnglish2011

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Elsevier BV,2011

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LIBRIS-ID:oai:lup.lub.lu.se:7fcd986d-37dc-424f-b53b-86f0e91fb0ed
https://lup.lub.lu.se/record/1731908URI
https://doi.org/10.1016/j.jbiosc.2010.10.009DOI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype
Subject category:ref swepub-contenttype

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Pretreatment, enzymatic hydrolysis and simultaneous saccharification and fermentation (SSF) of the South American straw material Paja Brava were investigated. Suitable process conditions for an SO(2)-catalyzed steam pretreatment of the material were determined and assessed by enzymatic digestibility of obtained fiber slurries for 72h at a water insoluble solids (WIS) content of 2%. The best pretreatment conditions obtained (200°C, 5min holding time and 2.5% SO(2)) gave an overall glucose yield following enzymatic hydrolysis of more than 90%, and a xylose yield of about 70%. Simultaneous saccharification and co-fermentation of glucose and xylose (SSCF) of the pretreated material using the xylose-fermenting strain Saccharomyces cerevisiae TMB3400 was examined at WIS contents between 5% and 10%. In agreement with previous studies on other materials, the overall ethanol yield and also the xylose conversion decreased somewhat with increasing WIS content in the SSCF. In batch SSCF, the xylose conversion obtained was almost 100% at 5% WIS content, but decreased to 69% at 10% WIS. The highest ethanol concentration obtained for a WIS content of 10% was about 40g/L, corresponding to a yield of 0.41g/g in a fed-batch SSCF. The Paja Brava material has previously been found difficult to hydrolyze in a dilute-acid process. However, the SSCF results obtained here show that similar sugar yields and fermentation performance can be expected from Paja Brava as from materials such as wheat straw, corn stover or sugarcane bagasse.

Subject headings and genre

TEKNIK OCH TEKNOLOGIER Kemiteknik hsv//swe
ENGINEERING AND TECHNOLOGY Chemical Engineering hsv//eng
TEKNIK OCH TEKNOLOGIER Annan teknik Livsmedelsteknik hsv//swe
ENGINEERING AND TECHNOLOGY Other Engineering and Technologies Food Engineering hsv//eng
NATURVETENSKAP Biologi Biokemi och molekylärbiologi hsv//swe
NATURAL SCIENCES Biological Sciences Biochemistry and Molecular Biology hsv//eng
NATURVETENSKAP Kemi Organisk kemi hsv//swe
NATURAL SCIENCES Chemical Sciences Organic Chemistry hsv//eng

Added entries (persons, corporate bodies, meetings, titles ...)

Baudel, Henrique (author)
Penarrieta, MauricioLund University,Lunds universitet,Livsmedelsteknik,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Food Technology, Engineering and Nutrition,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)livs-mpe (author)
Solano, CarlosLund University,Lunds universitet,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)chem-cso (author)
Tejeda, LeslieLund University,Lunds universitet,Livsmedelsteknik,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Tillämpad biokemi,Centrum för tillämpade biovetenskaper,Kemiska institutionen,Department of Food Technology, Engineering and Nutrition,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH,Pure and Applied Biochemistry,Center for Applied Life Sciences,Department of Chemistry,Faculty of Engineering, LTH(Swepub:lu)tbio-llt (author)
Roslander, ChristianLund University,Lunds universitet,Avdelningen för kemiteknik,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Chemical Engineering,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kat-cro (author)
Galbe, MatsLund University,Lunds universitet,Avdelningen för kemiteknik,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Chemical Engineering,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kat-mga (author)
Lidén, GunnarLund University,Lunds universitet,Avdelningen för kemiteknik,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Chemical Engineering,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)chem-gli (author)
Avdelningen för kemiteknikInstitutionen för processteknik och tillämpad biovetenskap (creator_code:org_t)

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In:Journal of Bioscience and Bioengineering: Elsevier BV111, s. 167-1741347-44211389-1723

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Chemical Enginee ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Other Engineerin ...; and Food Engineering

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