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Co-production of xylooligosaccharides and fermentable sugars from poplar through acetic acid pretreatment followed by poly (ethylene glycol) ether assisted alkali treatment.

Identifieur interne : 000A77 ( Main/Exploration ); précédent : 000A76; suivant : 000A78

Co-production of xylooligosaccharides and fermentable sugars from poplar through acetic acid pretreatment followed by poly (ethylene glycol) ether assisted alkali treatment.

Auteurs : Chenhuan Lai [République populaire de Chine] ; Yuan Jia [République populaire de Chine] ; Jianglong Wang [République populaire de Chine] ; Ruwen Wang [République populaire de Chine] ; Qiang Zhang [République populaire de Chine] ; Liwei Chen [République populaire de Chine] ; Hao Shi [République populaire de Chine] ; Caoxing Huang [République populaire de Chine] ; Xin Li [République populaire de Chine] ; Qiang Yong [République populaire de Chine]

Source :

RBID : pubmed:31181460

Descripteurs français

English descriptors

Abstract

A novel combined pretreatment process of poplar sawdust was established in this study based on the sequential acetic acid and alkali treatment with poly (ethylene glycol) diglycidyl ether (PEGDE). Effects of each treatment step on chemical composition, cellulose accessibility, and enzymatic digestibility of poplar sawdust was investigated. Acetic acid pretreatment remarkably increased cellulose accessibility while also producing a relatively high quantity of xylooligosaccharides (XOS) (37.6% of raw xylan). However, enzymatic digestibility remained low (28.3%) despite hemicellulose disruption. Post alkali treatment was next applied, leading to improvement on cellulose accessibility and enzymatic hydrolysis. Enzymatic hydrolysis was improved more significantly by successive alkali treatment with PEGDE. Its potential mechanisms attributable to enzymatic hydrolysis improvement were explored by revealing the changes to lignin properties. This work successfully demonstrated that recalcitrant waste woody biomass can be biorefined into both high-value XOS as well as relatively high yield of fermentable sugars.

DOI: 10.1016/j.biortech.2019.121569
PubMed: 31181460


Affiliations:


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Le document en format XML

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<term>Ethylene Glycols (MeSH)</term>
<term>Glucuronates (MeSH)</term>
<term>Hydrolysis (MeSH)</term>
<term>Lignin (MeSH)</term>
<term>Oligosaccharides (MeSH)</term>
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<term>Glucuronates (MeSH)</term>
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<div type="abstract" xml:lang="en">A novel combined pretreatment process of poplar sawdust was established in this study based on the sequential acetic acid and alkali treatment with poly (ethylene glycol) diglycidyl ether (PEGDE). Effects of each treatment step on chemical composition, cellulose accessibility, and enzymatic digestibility of poplar sawdust was investigated. Acetic acid pretreatment remarkably increased cellulose accessibility while also producing a relatively high quantity of xylooligosaccharides (XOS) (37.6% of raw xylan). However, enzymatic digestibility remained low (28.3%) despite hemicellulose disruption. Post alkali treatment was next applied, leading to improvement on cellulose accessibility and enzymatic hydrolysis. Enzymatic hydrolysis was improved more significantly by successive alkali treatment with PEGDE. Its potential mechanisms attributable to enzymatic hydrolysis improvement were explored by revealing the changes to lignin properties. This work successfully demonstrated that recalcitrant waste woody biomass can be biorefined into both high-value XOS as well as relatively high yield of fermentable sugars.</div>
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<AbstractText>A novel combined pretreatment process of poplar sawdust was established in this study based on the sequential acetic acid and alkali treatment with poly (ethylene glycol) diglycidyl ether (PEGDE). Effects of each treatment step on chemical composition, cellulose accessibility, and enzymatic digestibility of poplar sawdust was investigated. Acetic acid pretreatment remarkably increased cellulose accessibility while also producing a relatively high quantity of xylooligosaccharides (XOS) (37.6% of raw xylan). However, enzymatic digestibility remained low (28.3%) despite hemicellulose disruption. Post alkali treatment was next applied, leading to improvement on cellulose accessibility and enzymatic hydrolysis. Enzymatic hydrolysis was improved more significantly by successive alkali treatment with PEGDE. Its potential mechanisms attributable to enzymatic hydrolysis improvement were explored by revealing the changes to lignin properties. This work successfully demonstrated that recalcitrant waste woody biomass can be biorefined into both high-value XOS as well as relatively high yield of fermentable sugars.</AbstractText>
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<LastName>Chen</LastName>
<ForeName>Liwei</ForeName>
<Initials>L</Initials>
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<Affiliation>Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China.</Affiliation>
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<ForeName>Caoxing</ForeName>
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<Affiliation>Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China.</Affiliation>
</AffiliationInfo>
</Author>
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<LastName>Li</LastName>
<ForeName>Xin</ForeName>
<Initials>X</Initials>
<AffiliationInfo>
<Affiliation>Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China.</Affiliation>
</AffiliationInfo>
</Author>
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<LastName>Yong</LastName>
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<Initials>Q</Initials>
<AffiliationInfo>
<Affiliation>Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China. Electronic address: swhx@njfu.com.cn.</Affiliation>
</AffiliationInfo>
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<Language>eng</Language>
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<PublicationType UI="D016428">Journal Article</PublicationType>
</PublicationTypeList>
<ArticleDate DateType="Electronic">
<Year>2019</Year>
<Month>05</Month>
<Day>28</Day>
</ArticleDate>
</Article>
<MedlineJournalInfo>
<Country>England</Country>
<MedlineTA>Bioresour Technol</MedlineTA>
<NlmUniqueID>9889523</NlmUniqueID>
<ISSNLinking>0960-8524</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D000468">Alkalies</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D004987">Ethers</NameOfSubstance>
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<Chemical>
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<NameOfSubstance UI="D005026">Ethylene Glycols</NameOfSubstance>
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<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D005965">Glucuronates</NameOfSubstance>
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<NameOfSubstance UI="D009844">Oligosaccharides</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D000073893">Sugars</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="C570991">xylooligosaccharide</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>9005-53-2</RegistryNumber>
<NameOfSubstance UI="D008031">Lignin</NameOfSubstance>
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<Chemical>
<RegistryNumber>Q40Q9N063P</RegistryNumber>
<NameOfSubstance UI="D019342">Acetic Acid</NameOfSubstance>
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<MeshHeading>
<DescriptorName UI="D000468" MajorTopicYN="Y">Alkalies</DescriptorName>
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<DescriptorName UI="D005965" MajorTopicYN="N">Glucuronates</DescriptorName>
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<MeshHeading>
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<DescriptorName UI="D009844" MajorTopicYN="N">Oligosaccharides</DescriptorName>
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<MeshHeading>
<DescriptorName UI="D000073893" MajorTopicYN="N">Sugars</DescriptorName>
</MeshHeading>
</MeshHeadingList>
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<Keyword MajorTopicYN="N">Combined pretreatment</Keyword>
<Keyword MajorTopicYN="N">Enzymatic hydrolysis</Keyword>
<Keyword MajorTopicYN="N">In-situ lignin modification</Keyword>
<Keyword MajorTopicYN="N">Poplar</Keyword>
<Keyword MajorTopicYN="N">Xylooligosaccharides</Keyword>
</KeywordList>
</MedlineCitation>
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<PubMedPubDate PubStatus="received">
<Year>2019</Year>
<Month>04</Month>
<Day>24</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="revised">
<Year>2019</Year>
<Month>05</Month>
<Day>24</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="accepted">
<Year>2019</Year>
<Month>05</Month>
<Day>25</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed">
<Year>2019</Year>
<Month>6</Month>
<Day>11</Day>
<Hour>6</Hour>
<Minute>0</Minute>
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<PubMedPubDate PubStatus="medline">
<Year>2019</Year>
<Month>9</Month>
<Day>19</Day>
<Hour>6</Hour>
<Minute>0</Minute>
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<PubMedPubDate PubStatus="entrez">
<Year>2019</Year>
<Month>6</Month>
<Day>11</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList>
<ArticleId IdType="pubmed">31181460</ArticleId>
<ArticleId IdType="pii">S0960-8524(19)30799-0</ArticleId>
<ArticleId IdType="doi">10.1016/j.biortech.2019.121569</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
<affiliations>
<list>
<country>
<li>République populaire de Chine</li>
</country>
</list>
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<noRegion>
<name sortKey="Lai, Chenhuan" sort="Lai, Chenhuan" uniqKey="Lai C" first="Chenhuan" last="Lai">Chenhuan Lai</name>
</noRegion>
<name sortKey="Chen, Liwei" sort="Chen, Liwei" uniqKey="Chen L" first="Liwei" last="Chen">Liwei Chen</name>
<name sortKey="Huang, Caoxing" sort="Huang, Caoxing" uniqKey="Huang C" first="Caoxing" last="Huang">Caoxing Huang</name>
<name sortKey="Jia, Yuan" sort="Jia, Yuan" uniqKey="Jia Y" first="Yuan" last="Jia">Yuan Jia</name>
<name sortKey="Li, Xin" sort="Li, Xin" uniqKey="Li X" first="Xin" last="Li">Xin Li</name>
<name sortKey="Shi, Hao" sort="Shi, Hao" uniqKey="Shi H" first="Hao" last="Shi">Hao Shi</name>
<name sortKey="Wang, Jianglong" sort="Wang, Jianglong" uniqKey="Wang J" first="Jianglong" last="Wang">Jianglong Wang</name>
<name sortKey="Wang, Ruwen" sort="Wang, Ruwen" uniqKey="Wang R" first="Ruwen" last="Wang">Ruwen Wang</name>
<name sortKey="Yong, Qiang" sort="Yong, Qiang" uniqKey="Yong Q" first="Qiang" last="Yong">Qiang Yong</name>
<name sortKey="Zhang, Qiang" sort="Zhang, Qiang" uniqKey="Zhang Q" first="Qiang" last="Zhang">Qiang Zhang</name>
</country>
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</record>

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