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 Tools annual

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 Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

For structural elucidation of native lignin, native lignins of Western hemlock (Tsuga heterophylla), Birch (Betula papyrifera marsh) and Rice straw (Oryza sativa) were converted to lignin-based polymers, lignophenols, through the phase-separation system. The lignophenols were divided into ether soluble (ESL) and insoluble (EIL) fractions. Their structural features were analyzed by GPC, UV-Vis, FT-IR and H-NMR. The weight ratio of ESL to EIL from Rice straw (grass plant) was higher than those from Western hemlock (softwood) and Birch (hardwood), indicating the difference in the growth of primary lignin chains resulted from random radical coupling of precursors. The FT-IR spectra of ESL showed higher absorption at 815 cm due to C-H out of plane skeletal vibration of aromatic ring, suggesting higher frequency of grafted p-cresol, which was supported by H-NMR.

Fractionation of Lignophenols and Structural Features of Low Molecular Weight Fractions