Evaluation of lignin-enriched side-streams from different biomass conversion processes as thickeners in bio-lubricant formulations
This study explores the suitability of residual lignin-containing fractions generated as side-streams in different conversion processes of eucalypt and pine woods as thickening agents in bio-lubricant formulations. These conversion processes included fermentable sugars extraction by autohydrolysis o...
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| Veröffentlicht in: | International journal of biological macromolecules 2020-11, Vol.162, p.1398-1413 |
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| container_title | International journal of biological macromolecules |
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| creator | Borrero-López, Antonio M. Martín-Sampedro, Raquel Ibarra, David Valencia, Concepción Eugenio, María E. Franco, José M. |
| description | This study explores the suitability of residual lignin-containing fractions generated as side-streams in different conversion processes of eucalypt and pine woods as thickening agents in bio-lubricant formulations. These conversion processes included fermentable sugars extraction by autohydrolysis or steam explosion and kraft pulping. Structural properties of lignin fractions were characterized by FTIR, 1H and 13C NMR, two-dimensional NMR, TGA and SEC, whereas their compositions were analysed by standard analytical methods. On the other hand, chemical oleogels were prepared with NCO-functionalized residual lignin fractions, and characterized by means of rheological, tribological and AFM techniques. Hydrolysis lignin fractions exhibited a great content of carbohydrates, especially glucose (46.0–48.5%), xylose (4.3–15.6%) and lignin (32.5–39.9%) with a well-maintained structure, displaying the main inter-unit linkages and low phenolic content. By contrast, kraft lignin fractions presented a lower carbohydrate content, mainly xylose (3.4–4.3%), and higher content (44.9–67%) of severely degraded lignin, showing a dramatic reduction of inter-unit linkages, and thereby high phenolic content. The rheological response of NCO-functionalized lignin fractions-based oleogels is highly influenced by the composition and chemical structure of residual lignin fractions. Moreover, these oleogels presented suitable tribological properties with values of the friction coefficient lower than those typically exhibited by standard lubricating greases.
•Side-stream lignins from saccharification and Kraft processes as oil thickeners•Lignins from hydrolysis treatments are chemically less degraded than Kraft lignins•Higher carbohydrate content was obtained in autohydrolysis lignins•Lubricant functional properties of lignin-based oleogels depends on the conversion process•Rheology was mainly influenced by carbohydrate content and molecular weight |
| doi_str_mv | 10.1016/j.ijbiomac.2020.07.292 |
| format | Article |
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•Side-stream lignins from saccharification and Kraft processes as oil thickeners•Lignins from hydrolysis treatments are chemically less degraded than Kraft lignins•Higher carbohydrate content was obtained in autohydrolysis lignins•Lubricant functional properties of lignin-based oleogels depends on the conversion process•Rheology was mainly influenced by carbohydrate content and molecular weight</description><identifier>ISSN: 0141-8130</identifier><identifier>EISSN: 1879-0003</identifier><identifier>DOI: 10.1016/j.ijbiomac.2020.07.292</identifier><identifier>PMID: 32771513</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Biocompatible Materials - chemistry ; Biomass ; Chromatography, Gel ; Hydrolysis ; Lignin - chemistry ; Lubricants - chemistry ; Magnetic Resonance Spectroscopy ; Microscopy, Atomic Force ; Oleogel ; Residual lignin ; Rheology ; Spectroscopy, Fourier Transform Infrared ; Thermogravimetry</subject><ispartof>International journal of biological macromolecules, 2020-11, Vol.162, p.1398-1413</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright © 2020 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c416t-fa0a55dc0e459dbdb8c85f60670b680446d2b926f237038c17cb50d74edcb0333</citedby><cites>FETCH-LOGICAL-c416t-fa0a55dc0e459dbdb8c85f60670b680446d2b926f237038c17cb50d74edcb0333</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0141813020340332$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32771513$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Borrero-López, Antonio M.</creatorcontrib><creatorcontrib>Martín-Sampedro, Raquel</creatorcontrib><creatorcontrib>Ibarra, David</creatorcontrib><creatorcontrib>Valencia, Concepción</creatorcontrib><creatorcontrib>Eugenio, María E.</creatorcontrib><creatorcontrib>Franco, José M.</creatorcontrib><title>Evaluation of lignin-enriched side-streams from different biomass conversion processes as thickeners in bio-lubricant formulations</title><title>International journal of biological macromolecules</title><addtitle>Int J Biol Macromol</addtitle><description>This study explores the suitability of residual lignin-containing fractions generated as side-streams in different conversion processes of eucalypt and pine woods as thickening agents in bio-lubricant formulations. These conversion processes included fermentable sugars extraction by autohydrolysis or steam explosion and kraft pulping. Structural properties of lignin fractions were characterized by FTIR, 1H and 13C NMR, two-dimensional NMR, TGA and SEC, whereas their compositions were analysed by standard analytical methods. On the other hand, chemical oleogels were prepared with NCO-functionalized residual lignin fractions, and characterized by means of rheological, tribological and AFM techniques. Hydrolysis lignin fractions exhibited a great content of carbohydrates, especially glucose (46.0–48.5%), xylose (4.3–15.6%) and lignin (32.5–39.9%) with a well-maintained structure, displaying the main inter-unit linkages and low phenolic content. By contrast, kraft lignin fractions presented a lower carbohydrate content, mainly xylose (3.4–4.3%), and higher content (44.9–67%) of severely degraded lignin, showing a dramatic reduction of inter-unit linkages, and thereby high phenolic content. The rheological response of NCO-functionalized lignin fractions-based oleogels is highly influenced by the composition and chemical structure of residual lignin fractions. Moreover, these oleogels presented suitable tribological properties with values of the friction coefficient lower than those typically exhibited by standard lubricating greases.
•Side-stream lignins from saccharification and Kraft processes as oil thickeners•Lignins from hydrolysis treatments are chemically less degraded than Kraft lignins•Higher carbohydrate content was obtained in autohydrolysis lignins•Lubricant functional properties of lignin-based oleogels depends on the conversion process•Rheology was mainly influenced by carbohydrate content and molecular weight</description><subject>Biocompatible Materials - chemistry</subject><subject>Biomass</subject><subject>Chromatography, Gel</subject><subject>Hydrolysis</subject><subject>Lignin - chemistry</subject><subject>Lubricants - chemistry</subject><subject>Magnetic Resonance Spectroscopy</subject><subject>Microscopy, Atomic Force</subject><subject>Oleogel</subject><subject>Residual lignin</subject><subject>Rheology</subject><subject>Spectroscopy, Fourier Transform Infrared</subject><subject>Thermogravimetry</subject><issn>0141-8130</issn><issn>1879-0003</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkE9v1DAQxS0EokvhK1Q-ckkYx4mdvYGq8keqxAXOlmOPqZfELp5kJa58crzdliuSpZHs33vP8xi7EtAKEOrdoY2HKebFuraDDlrQbbfvnrGdGPW-AQD5nO1A9KIZhYQL9oroUG_VIMaX7EJ2WotByB37c3O082bXmBPPgc_xR4qpwVSiu0PPKXpsaC1oF-Kh5IX7GAIWTCt_iCfiLqcjFjo53JfskAiJW-LrXXQ_MdUnHtOJbuZtqr62akMuyzY_xNJr9iLYmfDN47xk3z_efLv-3Nx-_fTl-sNt43qh1iZYsMPgHWA_7P3kp9GNQ1CgNExqhL5Xvpv2nQqd1CBHJ7SbBvC6R-8mkFJesrdn3_rLXxvSapZIDufZJswbma6X9Qg19hVVZ9SVTFQwmPsSF1t-GwHm1L85mKf-zal_A9rU_qvw6jFjmxb0_2RPhVfg_RnAuukxYjHkIiaHPhZ0q_E5_i_jL83FnXw</recordid><startdate>20201101</startdate><enddate>20201101</enddate><creator>Borrero-López, Antonio M.</creator><creator>Martín-Sampedro, Raquel</creator><creator>Ibarra, David</creator><creator>Valencia, Concepción</creator><creator>Eugenio, María E.</creator><creator>Franco, José M.</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20201101</creationdate><title>Evaluation of lignin-enriched side-streams from different biomass conversion processes as thickeners in bio-lubricant formulations</title><author>Borrero-López, Antonio M. ; Martín-Sampedro, Raquel ; Ibarra, David ; Valencia, Concepción ; Eugenio, María E. ; Franco, José M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c416t-fa0a55dc0e459dbdb8c85f60670b680446d2b926f237038c17cb50d74edcb0333</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Biocompatible Materials - chemistry</topic><topic>Biomass</topic><topic>Chromatography, Gel</topic><topic>Hydrolysis</topic><topic>Lignin - chemistry</topic><topic>Lubricants - chemistry</topic><topic>Magnetic Resonance Spectroscopy</topic><topic>Microscopy, Atomic Force</topic><topic>Oleogel</topic><topic>Residual lignin</topic><topic>Rheology</topic><topic>Spectroscopy, Fourier Transform Infrared</topic><topic>Thermogravimetry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Borrero-López, Antonio M.</creatorcontrib><creatorcontrib>Martín-Sampedro, Raquel</creatorcontrib><creatorcontrib>Ibarra, David</creatorcontrib><creatorcontrib>Valencia, Concepción</creatorcontrib><creatorcontrib>Eugenio, María E.</creatorcontrib><creatorcontrib>Franco, José M.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>International journal of biological macromolecules</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Borrero-López, Antonio M.</au><au>Martín-Sampedro, Raquel</au><au>Ibarra, David</au><au>Valencia, Concepción</au><au>Eugenio, María E.</au><au>Franco, José M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of lignin-enriched side-streams from different biomass conversion processes as thickeners in bio-lubricant formulations</atitle><jtitle>International journal of biological macromolecules</jtitle><addtitle>Int J Biol Macromol</addtitle><date>2020-11-01</date><risdate>2020</risdate><volume>162</volume><spage>1398</spage><epage>1413</epage><pages>1398-1413</pages><issn>0141-8130</issn><eissn>1879-0003</eissn><abstract>This study explores the suitability of residual lignin-containing fractions generated as side-streams in different conversion processes of eucalypt and pine woods as thickening agents in bio-lubricant formulations. These conversion processes included fermentable sugars extraction by autohydrolysis or steam explosion and kraft pulping. Structural properties of lignin fractions were characterized by FTIR, 1H and 13C NMR, two-dimensional NMR, TGA and SEC, whereas their compositions were analysed by standard analytical methods. On the other hand, chemical oleogels were prepared with NCO-functionalized residual lignin fractions, and characterized by means of rheological, tribological and AFM techniques. Hydrolysis lignin fractions exhibited a great content of carbohydrates, especially glucose (46.0–48.5%), xylose (4.3–15.6%) and lignin (32.5–39.9%) with a well-maintained structure, displaying the main inter-unit linkages and low phenolic content. By contrast, kraft lignin fractions presented a lower carbohydrate content, mainly xylose (3.4–4.3%), and higher content (44.9–67%) of severely degraded lignin, showing a dramatic reduction of inter-unit linkages, and thereby high phenolic content. The rheological response of NCO-functionalized lignin fractions-based oleogels is highly influenced by the composition and chemical structure of residual lignin fractions. Moreover, these oleogels presented suitable tribological properties with values of the friction coefficient lower than those typically exhibited by standard lubricating greases.
•Side-stream lignins from saccharification and Kraft processes as oil thickeners•Lignins from hydrolysis treatments are chemically less degraded than Kraft lignins•Higher carbohydrate content was obtained in autohydrolysis lignins•Lubricant functional properties of lignin-based oleogels depends on the conversion process•Rheology was mainly influenced by carbohydrate content and molecular weight</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>32771513</pmid><doi>10.1016/j.ijbiomac.2020.07.292</doi><tpages>16</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Biocompatible Materials - chemistry Biomass Chromatography, Gel Hydrolysis Lignin - chemistry Lubricants - chemistry Magnetic Resonance Spectroscopy Microscopy, Atomic Force Oleogel Residual lignin Rheology Spectroscopy, Fourier Transform Infrared Thermogravimetry |
| title | Evaluation of lignin-enriched side-streams from different biomass conversion processes as thickeners in bio-lubricant formulations |
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