Chemical characterization of lignin and lipid fractions in industrial hemp bast fibers used for manufacturing high-quality paper pulps

J Agric Food Chem. 2006 Mar 22;54(6):2138-44. doi: 10.1021/jf052935a.

Abstract

The chemical composition of lignin and lipids of bast fibers from industrial hemp (Cannabis sativa) used for high-quality paper pulp production was studied. Pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) of fibers showed a lignin with a p-hydroxyphenyl:guaiacyl:syringyl unit (H:G:S) molar proportion of 13:53:34 (S/G ratio of 0.64). p-Hydroxycinnamic acids, namely, p-coumaric and ferulic acids, were found in only trace amounts. Among the lipids, the main compounds identified by GC/MS of the hemp fibers extracts were series of n-alkanes, free and esterified sterols and triterpenols, waxes, and long-chain n-fatty acids. Other compounds such as n-aldehydes, n-fatty alcohols, steroid hydrocarbons, and steroid and triterpenoid ketones as well as steryl glycosides were also found.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkanes / analysis
  • Cannabis / chemistry*
  • Fatty Acids / analysis
  • Gas Chromatography-Mass Spectrometry
  • Industry*
  • Lignin / chemistry*
  • Lipids / chemistry*
  • Paper*
  • Phytosterols / analysis
  • Waxes / analysis

Substances

  • Alkanes
  • Fatty Acids
  • Lipids
  • Phytosterols
  • Waxes
  • Lignin