English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Recently, a method was presented for the dissolution and nuclear magnetic resonance analysis of cell wall components in lignocellulosic biomass, which involves cell wall ball-milling, dissolution in ionic liquids (ILs), in situ acetylation, and the recovery of acetylated materials. However, the dissolution in ILs and the relatively long ball-milling times may partially degrade the plant cell wall components. In the present study, the molecular weight (MW) distributions of acetylated biomasses from fir ( Abies sachalinensis ), birch ( Betula platyphylla ), and bamboo ( Phyllostachys nigra ) recovered from IL systems were examined by size exclusion chromatography. The effects of IL types, cosolvents, dissolution temperatures and times, and ball-milling times were evaluated. The MW of acetylated fir woods recovered from 1-allyl-3-methylimidazolium chloride at 30–80°C or from 1-butyl-3-methylimidazolium chloride at 100°C for 2 h were similar to those materials that were recovered from the  N -methylimidazole/dimethyl sulfoxide system. In contrast, a significant decrease in MW was observed with 1-ethyl-3-methylimidazolium acetate ([Emim]OAc) even at 30°C. The degradation of cell wall components in [Emim]OAc was reduced to some extent in the presence of  N , N -dimethylacetamide or pyridine. The MW decreased gradually with increased ball-milling time.

Molecular weight distributions of acetylated lignocellulosic biomasses recovered from an ionic liquid system