One-step pretreatment of yellow poplar biomass using peracetic acid to enhance enzymatic digestibility.
Identifieur interne : 001285 ( Main/Exploration ); précédent : 001284; suivant : 001286One-step pretreatment of yellow poplar biomass using peracetic acid to enhance enzymatic digestibility.
Auteurs : Hyeong Rae Lee [Corée du Sud] ; Romas J. Kazlauskas [États-Unis] ; Tai Hyun Park [Corée du Sud]Source :
- Scientific reports [ 2045-2322 ] ; 2017.
Abstract
Pretreatment of biomass with dilute acid requires high temperatures of >160 °C to remove xylan and does not remove lignin. Here we report that the addition of peracetic acid, a strong oxidant, to mild dilute acid pretreatment reduces the temperature requirement to only 120 °C. Pretreatment of yellow poplar with peracetic acid (300 mM, 2.3 wt%) and dilute sulfuric acid (100 mM, 1.0 wt%) at 120 °C for 5 min removed 85.7% of the xylan and 90.4% of the lignin leaving a solid consisting of 75.6% glucan, 6.0% xylan and 4.7% lignin. Low enzyme loadings of 5 FPU/g glucan and 10 pNPGU/g glucan converted this solid to glucose with an 84.0% yield. This amount of glucose was 2.5 times higher than with dilute acid-pretreated solid and 13.8 times higher than with untreated yellow poplar. Thus, the addition of peracetic acid, easily generated from acetic acid and hydrogen peroxide, dramatically increases the effectiveness of dilute acid pretreatment of biomass.
DOI: 10.1038/s41598-017-12542-w
PubMed: 28939889
PubMed Central: PMC5610245
Affiliations:
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Kazlauskas</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biochemistry, Molecular Biology & Biophysics and the Biotechnology Institute, University of Minnesota, Saint Paul, MN, 55108, USA. rjk@umn.edu.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biochemistry, Molecular Biology & Biophysics and the Biotechnology Institute, University of Minnesota, Saint Paul, MN, 55108</wicri:regionArea><wicri:noRegion>55108</wicri:noRegion></affiliation></author><author><name sortKey="Park, Tai Hyun" sort="Park, Tai Hyun" uniqKey="Park T" first="Tai Hyun" last="Park">Tai Hyun Park</name><affiliation wicri:level="4"><nlm:affiliation>School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, Republic of Korea. thpark@snu.ac.kr.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744</wicri:regionArea><orgName type="university">Université nationale de Séoul</orgName><placeName><settlement type="city">Séoul</settlement></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2017">2017</date><idno type="RBID">pubmed:28939889</idno><idno type="pmid">28939889</idno><idno type="doi">10.1038/s41598-017-12542-w</idno><idno type="pmc">PMC5610245</idno><idno type="wicri:Area/Main/Corpus">001156</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001156</idno><idno type="wicri:Area/Main/Curation">001156</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">001156</idno><idno type="wicri:Area/Main/Exploration">001156</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">One-step pretreatment of yellow poplar biomass using peracetic acid to enhance enzymatic digestibility.</title><author><name sortKey="Lee, Hyeong Rae" sort="Lee, Hyeong Rae" uniqKey="Lee H" first="Hyeong Rae" last="Lee">Hyeong Rae Lee</name><affiliation wicri:level="4"><nlm:affiliation>School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, Republic of Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744</wicri:regionArea><orgName type="university">Université nationale de Séoul</orgName><placeName><settlement type="city">Séoul</settlement></placeName></affiliation></author><author><name sortKey="Kazlauskas, Romas J" sort="Kazlauskas, Romas J" uniqKey="Kazlauskas R" first="Romas J" last="Kazlauskas">Romas J. Kazlauskas</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biochemistry, Molecular Biology & Biophysics and the Biotechnology Institute, University of Minnesota, Saint Paul, MN, 55108, USA. rjk@umn.edu.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biochemistry, Molecular Biology & Biophysics and the Biotechnology Institute, University of Minnesota, Saint Paul, MN, 55108</wicri:regionArea><wicri:noRegion>55108</wicri:noRegion></affiliation></author><author><name sortKey="Park, Tai Hyun" sort="Park, Tai Hyun" uniqKey="Park T" first="Tai Hyun" last="Park">Tai Hyun Park</name><affiliation wicri:level="4"><nlm:affiliation>School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, Republic of Korea. thpark@snu.ac.kr.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744</wicri:regionArea><orgName type="university">Université nationale de Séoul</orgName><placeName><settlement type="city">Séoul</settlement></placeName></affiliation></author></analytic><series><title level="j">Scientific reports</title><idno type="eISSN">2045-2322</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Pretreatment of biomass with dilute acid requires high temperatures of >160 °C to remove xylan and does not remove lignin. Here we report that the addition of peracetic acid, a strong oxidant, to mild dilute acid pretreatment reduces the temperature requirement to only 120 °C. Pretreatment of yellow poplar with peracetic acid (300 mM, 2.3 wt%) and dilute sulfuric acid (100 mM, 1.0 wt%) at 120 °C for 5 min removed 85.7% of the xylan and 90.4% of the lignin leaving a solid consisting of 75.6% glucan, 6.0% xylan and 4.7% lignin. Low enzyme loadings of 5 FPU/g glucan and 10 pNPGU/g glucan converted this solid to glucose with an 84.0% yield. This amount of glucose was 2.5 times higher than with dilute acid-pretreated solid and 13.8 times higher than with untreated yellow poplar. Thus, the addition of peracetic acid, easily generated from acetic acid and hydrogen peroxide, dramatically increases the effectiveness of dilute acid pretreatment of biomass.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">28939889</PMID><DateRevised><Year>2019</Year><Month>11</Month><Day>20</Day></DateRevised><Article PubModel="Electronic"><Journal><ISSN IssnType="Electronic">2045-2322</ISSN><JournalIssue CitedMedium="Internet"><Volume>7</Volume><Issue>1</Issue><PubDate><Year>2017</Year><Month>09</Month><Day>22</Day></PubDate></JournalIssue><Title>Scientific reports</Title><ISOAbbreviation>Sci Rep</ISOAbbreviation></Journal><ArticleTitle>One-step pretreatment of yellow poplar biomass using peracetic acid to enhance enzymatic digestibility.</ArticleTitle><Pagination><MedlinePgn>12216</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1038/s41598-017-12542-w</ELocationID><Abstract><AbstractText>Pretreatment of biomass with dilute acid requires high temperatures of >160 °C to remove xylan and does not remove lignin. Here we report that the addition of peracetic acid, a strong oxidant, to mild dilute acid pretreatment reduces the temperature requirement to only 120 °C. Pretreatment of yellow poplar with peracetic acid (300 mM, 2.3 wt%) and dilute sulfuric acid (100 mM, 1.0 wt%) at 120 °C for 5 min removed 85.7% of the xylan and 90.4% of the lignin leaving a solid consisting of 75.6% glucan, 6.0% xylan and 4.7% lignin. Low enzyme loadings of 5 FPU/g glucan and 10 pNPGU/g glucan converted this solid to glucose with an 84.0% yield. This amount of glucose was 2.5 times higher than with dilute acid-pretreated solid and 13.8 times higher than with untreated yellow poplar. 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uniqKey="Park T" first="Tai Hyun" last="Park">Tai Hyun Park</name></country><country name="États-Unis"><noRegion><name sortKey="Kazlauskas, Romas J" sort="Kazlauskas, Romas J" uniqKey="Kazlauskas R" first="Romas J" last="Kazlauskas">Romas J. 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