期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 8, 期 1, 页码 34-37出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b06390
关键词
Ball milling; Fibrillation; Lignin; Lignocellulosic biomass; Poplar
资金
- U.S. Department of Energy Office of Science through the Genomic Science Program, Office of Biological and Environmental Research [FWP ERKP752]
- U.S. Department of Energy [DE-AC05-000R22725]
Ball milling is used for size reduction of biomass for isolating lignin. However, it is known that it can lead to some structural alteration of lignin. Fibrillation using ultrafriction grinding is a newer size reduction technology which was applied to poplar for isolating cellulolytic enzyme lignin. Compositional analysis of poplar, enzymatic hydrolysis yield, water retention value, lignin yield, lignin structural characterization, and lignin molecular weight analysis were carried out to compare lignin isolated from fibrillated and ball milled poplar. By using fibrillation instead of planetary ball milling for size reduction of poplar, higher beta-O-4' linkage content, lignin yield, and molecular weight were obtained. Replacing ball milling with fibrillation for size reduction allows recovery of lignin whose structure is closer to that of lignin in biomass.
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