Eco-friendly additives in acidic pretreatment to boost enzymatic saccharification of hardwood for sustainable biorefinery applications
Pretreatment of renewable lignocellulosic biomass is essential to produce fermentable sugars and biofuels in a sustainable biorefinery. However, lignin repolymerization during pretreatment was reported to intensify lignin inhibition in the enzymatic hydrolysis of cellulose. Seeking green additives t...
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| Veröffentlicht in: | Green chemistry : an international journal and green chemistry resource : GC 2021-06, Vol.23 (11), p.474-486 |
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| creator | Chu, Qiulu Tong, Wenyao Wu, Shufang Jin, Yongcan Hu, Jinguang Song, Kai |
| description | Pretreatment of renewable lignocellulosic biomass is essential to produce fermentable sugars and biofuels in a sustainable biorefinery. However, lignin repolymerization during pretreatment was reported to intensify lignin inhibition in the enzymatic hydrolysis of cellulose. Seeking green additives to mitigate lignin inhibition is of great significance for sustainable lignocellulosic biorefinery. In this work, green additives, mannitol and syringic acid, were thoroughly evaluated for improving the dilute acid pretreatment efficacy of hardwood. The results showed that these additives used in dilute acid pretreatment altered the structure and physicochemical properties of lignin, thus mitigating lignin inhibition on cellulose hydrolysis. In detail,
31
P NMR results showed evidently higher aliphatic OH groups of lignin after mannitol addition. The 2D HSQC NMR analysis exhibited more β-O-4 and fewer β-β structures, while GPC analysis showed a lower molecular weight of lignin. Results indicated that mannitol was incorporated into the lignin structure to form etherified lignin with plenty of hydroxyl tails, which suppressed lignin repolymerization. As a result, the surface barrier effect of lignin was largely diminished by mannitol addition, leading to improved ease of cellulose hydrolysis by up to 53%. As far as we know, mannitol as an additive in biomass pretreatment has not been reported. This work presented novel green additives to suppress lignin repolymerization for boosting enzymatic saccharification of cellulose in a sustainable lignocellulosic biorefinery.
This work presented novel green additives to suppress lignin repolymerization in lignocellulosic biomass pretreatment for boosted enzymatic saccharification in a sustainable biorefinery. |
| doi_str_mv | 10.1039/d1gc00738f |
| format | Article |
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31
P NMR results showed evidently higher aliphatic OH groups of lignin after mannitol addition. The 2D HSQC NMR analysis exhibited more β-O-4 and fewer β-β structures, while GPC analysis showed a lower molecular weight of lignin. Results indicated that mannitol was incorporated into the lignin structure to form etherified lignin with plenty of hydroxyl tails, which suppressed lignin repolymerization. As a result, the surface barrier effect of lignin was largely diminished by mannitol addition, leading to improved ease of cellulose hydrolysis by up to 53%. As far as we know, mannitol as an additive in biomass pretreatment has not been reported. This work presented novel green additives to suppress lignin repolymerization for boosting enzymatic saccharification of cellulose in a sustainable lignocellulosic biorefinery.
This work presented novel green additives to suppress lignin repolymerization in lignocellulosic biomass pretreatment for boosted enzymatic saccharification in a sustainable biorefinery.</description><identifier>ISSN: 1463-9262</identifier><identifier>EISSN: 1463-9270</identifier><identifier>DOI: 10.1039/d1gc00738f</identifier><language>eng</language><publisher>CAMBRIDGE: Royal Soc Chemistry</publisher><subject>Additives ; Biofuels ; Biomass ; Biorefineries ; Cellulose ; Chemistry ; Chemistry, Multidisciplinary ; Dilution ; Green & Sustainable Science & Technology ; Green chemistry ; Hardwoods ; Hydrolysis ; Lignin ; Lignocellulose ; Mannitol ; Molecular weight ; NMR ; Nuclear magnetic resonance ; Physical Sciences ; Physicochemical properties ; Pretreatment ; Refining ; Saccharification ; Science & Technology ; Science & Technology - Other Topics ; Sugar ; Sustainability ; Two dimensional analysis</subject><ispartof>Green chemistry : an international journal and green chemistry resource : GC, 2021-06, Vol.23 (11), p.474-486</ispartof><rights>Copyright Royal Society of Chemistry 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>true</woscitedreferencessubscribed><woscitedreferencescount>72</woscitedreferencescount><woscitedreferencesoriginalsourcerecordid>wos000651419300001</woscitedreferencesoriginalsourcerecordid><citedby>FETCH-LOGICAL-c284t-2177a5e37b4dd2c0ee58a63441c77ed45e5aa59754e83b88ee9125d691c6afaf3</citedby><cites>FETCH-LOGICAL-c284t-2177a5e37b4dd2c0ee58a63441c77ed45e5aa59754e83b88ee9125d691c6afaf3</cites><orcidid>0000-0002-0748-3629 ; 0000-0001-7900-3981 ; 0000-0001-8033-7102 ; 0000-0003-4782-8668</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27929,27930,39263</link.rule.ids></links><search><creatorcontrib>Chu, Qiulu</creatorcontrib><creatorcontrib>Tong, Wenyao</creatorcontrib><creatorcontrib>Wu, Shufang</creatorcontrib><creatorcontrib>Jin, Yongcan</creatorcontrib><creatorcontrib>Hu, Jinguang</creatorcontrib><creatorcontrib>Song, Kai</creatorcontrib><title>Eco-friendly additives in acidic pretreatment to boost enzymatic saccharification of hardwood for sustainable biorefinery applications</title><title>Green chemistry : an international journal and green chemistry resource : GC</title><addtitle>GREEN CHEM</addtitle><description>Pretreatment of renewable lignocellulosic biomass is essential to produce fermentable sugars and biofuels in a sustainable biorefinery. However, lignin repolymerization during pretreatment was reported to intensify lignin inhibition in the enzymatic hydrolysis of cellulose. Seeking green additives to mitigate lignin inhibition is of great significance for sustainable lignocellulosic biorefinery. In this work, green additives, mannitol and syringic acid, were thoroughly evaluated for improving the dilute acid pretreatment efficacy of hardwood. The results showed that these additives used in dilute acid pretreatment altered the structure and physicochemical properties of lignin, thus mitigating lignin inhibition on cellulose hydrolysis. In detail,
31
P NMR results showed evidently higher aliphatic OH groups of lignin after mannitol addition. The 2D HSQC NMR analysis exhibited more β-O-4 and fewer β-β structures, while GPC analysis showed a lower molecular weight of lignin. Results indicated that mannitol was incorporated into the lignin structure to form etherified lignin with plenty of hydroxyl tails, which suppressed lignin repolymerization. As a result, the surface barrier effect of lignin was largely diminished by mannitol addition, leading to improved ease of cellulose hydrolysis by up to 53%. As far as we know, mannitol as an additive in biomass pretreatment has not been reported. This work presented novel green additives to suppress lignin repolymerization for boosting enzymatic saccharification of cellulose in a sustainable lignocellulosic biorefinery.
This work presented novel green additives to suppress lignin repolymerization in lignocellulosic biomass pretreatment for boosted enzymatic saccharification in a sustainable biorefinery.</description><subject>Additives</subject><subject>Biofuels</subject><subject>Biomass</subject><subject>Biorefineries</subject><subject>Cellulose</subject><subject>Chemistry</subject><subject>Chemistry, Multidisciplinary</subject><subject>Dilution</subject><subject>Green & Sustainable Science & Technology</subject><subject>Green chemistry</subject><subject>Hardwoods</subject><subject>Hydrolysis</subject><subject>Lignin</subject><subject>Lignocellulose</subject><subject>Mannitol</subject><subject>Molecular weight</subject><subject>NMR</subject><subject>Nuclear magnetic resonance</subject><subject>Physical Sciences</subject><subject>Physicochemical properties</subject><subject>Pretreatment</subject><subject>Refining</subject><subject>Saccharification</subject><subject>Science & Technology</subject><subject>Science & Technology - Other Topics</subject><subject>Sugar</subject><subject>Sustainability</subject><subject>Two dimensional analysis</subject><issn>1463-9262</issn><issn>1463-9270</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>HGBXW</sourceid><recordid>eNqNkU9PxCAQxRujiX8v3k1IvGmqUKC0R1N31cTEi54bCoNidqEC62b9AH5u0TXr1RMzmd_jDY-iOCb4gmDaXmryrDAWtDFbxR5hNS3bSuDtTV1Xu8V-jK8YEyJqtld8TpQvTbDg9GyFpNY22XeIyDokldVWoTFACiDTHFxCyaPB-5gQuI_VXKY8j1KpFxmssSr33iFvUO710nuNjA8oLmKS1slhBmiwPoCxDkI2G8fZryYeFjtGziIc_Z4HxdN08tjdlvcPN3fd1X2pqoalsiJCSA5UDEzrSmEA3siaMkaUEKAZBy4lbwVn0NChaQBaUnFdt0TV0khDD4rT9b1j8G8LiKl_9YvgsmVfcZrzYbRuMnW2plTwMeaF-zHYuQyrnuD-O-f-mtx0PzlPM9ys4SUM3kSVo1SwEWCMa04YaWmuMOls-nlw5xcuZen5_6WZPlnTIaoN9Pfh9As2iJ5L</recordid><startdate>20210609</startdate><enddate>20210609</enddate><creator>Chu, Qiulu</creator><creator>Tong, Wenyao</creator><creator>Wu, Shufang</creator><creator>Jin, Yongcan</creator><creator>Hu, Jinguang</creator><creator>Song, Kai</creator><general>Royal Soc Chemistry</general><general>Royal Society of Chemistry</general><scope>BLEPL</scope><scope>DTL</scope><scope>HGBXW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7ST</scope><scope>7U6</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-0748-3629</orcidid><orcidid>https://orcid.org/0000-0001-7900-3981</orcidid><orcidid>https://orcid.org/0000-0001-8033-7102</orcidid><orcidid>https://orcid.org/0000-0003-4782-8668</orcidid></search><sort><creationdate>20210609</creationdate><title>Eco-friendly additives in acidic pretreatment to boost enzymatic saccharification of hardwood for sustainable biorefinery applications</title><author>Chu, Qiulu ; Tong, Wenyao ; Wu, Shufang ; Jin, Yongcan ; Hu, Jinguang ; Song, Kai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c284t-2177a5e37b4dd2c0ee58a63441c77ed45e5aa59754e83b88ee9125d691c6afaf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Additives</topic><topic>Biofuels</topic><topic>Biomass</topic><topic>Biorefineries</topic><topic>Cellulose</topic><topic>Chemistry</topic><topic>Chemistry, Multidisciplinary</topic><topic>Dilution</topic><topic>Green & Sustainable Science & Technology</topic><topic>Green chemistry</topic><topic>Hardwoods</topic><topic>Hydrolysis</topic><topic>Lignin</topic><topic>Lignocellulose</topic><topic>Mannitol</topic><topic>Molecular weight</topic><topic>NMR</topic><topic>Nuclear magnetic resonance</topic><topic>Physical Sciences</topic><topic>Physicochemical properties</topic><topic>Pretreatment</topic><topic>Refining</topic><topic>Saccharification</topic><topic>Science & Technology</topic><topic>Science & Technology - Other Topics</topic><topic>Sugar</topic><topic>Sustainability</topic><topic>Two dimensional analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chu, Qiulu</creatorcontrib><creatorcontrib>Tong, Wenyao</creatorcontrib><creatorcontrib>Wu, Shufang</creatorcontrib><creatorcontrib>Jin, Yongcan</creatorcontrib><creatorcontrib>Hu, Jinguang</creatorcontrib><creatorcontrib>Song, Kai</creatorcontrib><collection>Web of Science Core Collection</collection><collection>Science Citation Index Expanded</collection><collection>Web of Science - Science Citation Index Expanded - 2021</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Sustainability Science Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Materials Research Database</collection><jtitle>Green chemistry : an international journal and green chemistry resource : GC</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chu, Qiulu</au><au>Tong, Wenyao</au><au>Wu, Shufang</au><au>Jin, Yongcan</au><au>Hu, Jinguang</au><au>Song, Kai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Eco-friendly additives in acidic pretreatment to boost enzymatic saccharification of hardwood for sustainable biorefinery applications</atitle><jtitle>Green chemistry : an international journal and green chemistry resource : GC</jtitle><stitle>GREEN CHEM</stitle><date>2021-06-09</date><risdate>2021</risdate><volume>23</volume><issue>11</issue><spage>474</spage><epage>486</epage><pages>474-486</pages><issn>1463-9262</issn><eissn>1463-9270</eissn><abstract>Pretreatment of renewable lignocellulosic biomass is essential to produce fermentable sugars and biofuels in a sustainable biorefinery. However, lignin repolymerization during pretreatment was reported to intensify lignin inhibition in the enzymatic hydrolysis of cellulose. Seeking green additives to mitigate lignin inhibition is of great significance for sustainable lignocellulosic biorefinery. In this work, green additives, mannitol and syringic acid, were thoroughly evaluated for improving the dilute acid pretreatment efficacy of hardwood. The results showed that these additives used in dilute acid pretreatment altered the structure and physicochemical properties of lignin, thus mitigating lignin inhibition on cellulose hydrolysis. In detail,
31
P NMR results showed evidently higher aliphatic OH groups of lignin after mannitol addition. The 2D HSQC NMR analysis exhibited more β-O-4 and fewer β-β structures, while GPC analysis showed a lower molecular weight of lignin. Results indicated that mannitol was incorporated into the lignin structure to form etherified lignin with plenty of hydroxyl tails, which suppressed lignin repolymerization. As a result, the surface barrier effect of lignin was largely diminished by mannitol addition, leading to improved ease of cellulose hydrolysis by up to 53%. As far as we know, mannitol as an additive in biomass pretreatment has not been reported. This work presented novel green additives to suppress lignin repolymerization for boosting enzymatic saccharification of cellulose in a sustainable lignocellulosic biorefinery.
This work presented novel green additives to suppress lignin repolymerization in lignocellulosic biomass pretreatment for boosted enzymatic saccharification in a sustainable biorefinery.</abstract><cop>CAMBRIDGE</cop><pub>Royal Soc Chemistry</pub><doi>10.1039/d1gc00738f</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0002-0748-3629</orcidid><orcidid>https://orcid.org/0000-0001-7900-3981</orcidid><orcidid>https://orcid.org/0000-0001-8033-7102</orcidid><orcidid>https://orcid.org/0000-0003-4782-8668</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Additives Biofuels Biomass Biorefineries Cellulose Chemistry Chemistry, Multidisciplinary Dilution Green & Sustainable Science & Technology Green chemistry Hardwoods Hydrolysis Lignin Lignocellulose Mannitol Molecular weight NMR Nuclear magnetic resonance Physical Sciences Physicochemical properties Pretreatment Refining Saccharification Science & Technology Science & Technology - Other Topics Sugar Sustainability Two dimensional analysis |
| title | Eco-friendly additives in acidic pretreatment to boost enzymatic saccharification of hardwood for sustainable biorefinery applications |
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