{"title":"生物质溶剂和质子离子液体作为木质素选择性预处理剂在杨树分馏中的应用研究","authors":"Nazife Isik Haykir","doi":"10.1080/02773813.2022.2033781","DOIUrl":null,"url":null,"abstract":"Abstract In this study, mixtures of protic ionic liquids (PILs) and biomass derived solvents; gamma-valerolactone (GVL), levulinic acid (LA) and H2O at different weight percentages were used to pretreat poplar. GVL addition up to 60% enhanced delignification in biomass that is subjected to MEAHSO4-GVL-H2O; cellulose content of the biomass increased from 42% to 74% with 67% lignin removal. Aqueous solution of LA used for the first time to pretreat a biomass performed better than TEAHSO4-H2O. LA-H2O at 80%-20% resulted in 70% lignin extraction and preserved 89% of the cellulose in the structure which were also verified with SEM, FTIR and XRD analysis displaying clear cellulose macrofibers, lignin signals with lower intensities and higher biomass crystallinity, respectively. Accordingly, enzymatic conversion of LA pretreated poplar released 43 g/L glucose at 10% substrate loading. Findings showed the potentials of biomass derived solvents, GVL and LA and PILs and their aqueous mixtures to selectively deconstruct poplar.","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":1.7000,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Evaluation of biomass-derived solvents and protic ionic liquids as lignin-selective pretreatment agents for poplar fractionation\",\"authors\":\"Nazife Isik Haykir\",\"doi\":\"10.1080/02773813.2022.2033781\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract In this study, mixtures of protic ionic liquids (PILs) and biomass derived solvents; gamma-valerolactone (GVL), levulinic acid (LA) and H2O at different weight percentages were used to pretreat poplar. GVL addition up to 60% enhanced delignification in biomass that is subjected to MEAHSO4-GVL-H2O; cellulose content of the biomass increased from 42% to 74% with 67% lignin removal. Aqueous solution of LA used for the first time to pretreat a biomass performed better than TEAHSO4-H2O. LA-H2O at 80%-20% resulted in 70% lignin extraction and preserved 89% of the cellulose in the structure which were also verified with SEM, FTIR and XRD analysis displaying clear cellulose macrofibers, lignin signals with lower intensities and higher biomass crystallinity, respectively. Accordingly, enzymatic conversion of LA pretreated poplar released 43 g/L glucose at 10% substrate loading. Findings showed the potentials of biomass derived solvents, GVL and LA and PILs and their aqueous mixtures to selectively deconstruct poplar.\",\"PeriodicalId\":17493,\"journal\":{\"name\":\"Journal of Wood Chemistry and Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2022-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Wood Chemistry and Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1080/02773813.2022.2033781\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, PAPER & WOOD\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Wood Chemistry and Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/02773813.2022.2033781","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}
Evaluation of biomass-derived solvents and protic ionic liquids as lignin-selective pretreatment agents for poplar fractionation
Abstract In this study, mixtures of protic ionic liquids (PILs) and biomass derived solvents; gamma-valerolactone (GVL), levulinic acid (LA) and H2O at different weight percentages were used to pretreat poplar. GVL addition up to 60% enhanced delignification in biomass that is subjected to MEAHSO4-GVL-H2O; cellulose content of the biomass increased from 42% to 74% with 67% lignin removal. Aqueous solution of LA used for the first time to pretreat a biomass performed better than TEAHSO4-H2O. LA-H2O at 80%-20% resulted in 70% lignin extraction and preserved 89% of the cellulose in the structure which were also verified with SEM, FTIR and XRD analysis displaying clear cellulose macrofibers, lignin signals with lower intensities and higher biomass crystallinity, respectively. Accordingly, enzymatic conversion of LA pretreated poplar released 43 g/L glucose at 10% substrate loading. Findings showed the potentials of biomass derived solvents, GVL and LA and PILs and their aqueous mixtures to selectively deconstruct poplar.
期刊介绍:
The Journal of Wood Chemistry and Technology (JWCT) is focused on the rapid publication of research advances in the chemistry of bio-based materials and products, including all aspects of wood-based polymers, chemicals, materials, and technology. JWCT provides an international forum for researchers and manufacturers working in wood-based biopolymers and chemicals, synthesis and characterization, as well as the chemistry of biomass conversion and utilization.
JWCT primarily publishes original research papers and communications, and occasionally invited review articles and special issues. Special issues must summarize and analyze state-of-the-art developments within the field of biomass chemistry, or be in tribute to the career of a distinguished researcher. If you wish to suggest a special issue for the Journal, please email the Editor-in-Chief a detailed proposal that includes the topic, a list of potential contributors, and a time-line.